diff --git a/CHANGELOG.md b/CHANGELOG.md
index ccc2f268bf..56f8825f7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -180,6 +180,8 @@ The project does _not_ follow Semantic Versioning and the changes are documented
 ### Added
 
 - `NumberLiteral` can now be converted to a `BigDecimal` with the method `toBigDecimal`.
+- Uncatched `DateTimeException` during check DateLiteral
+- The type parameter is now used in the Java generation of the FailExpr.
 -  Named based access of result columns of multi decision tables were added. Columns can be referenced by name and coexist with the index based access.
 
 ## December 2023
diff --git a/README.md b/README.md
index 223f12977f..5577b6589b 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,8 @@ We take care of porting changes done in older supported MPS versions to the newe
 For details see [wiki](https://github.com/IETS3/iets3.opensource/wiki/Supported-MPS-Versions).
 
 ### What MPS versions are currently supported? 
-- MPS 2022.3 (branch: [master](https://github.com/IETS3/iets3.opensource/tree/master)) 
+- MPS 2023.2 (branch: [master](https://github.com/IETS3/iets3.opensource/tree/master)) 
+- MPS 2022.3 (branch: [maintenance/mps20223](https://github.com/IETS3/iets3.opensource/tree/maintenance/mps20223)) 
 - MPS 2022.2 (branch: [maintenance/mps20222](https://github.com/IETS3/iets3.opensource/tree/maintenance/mps20222)) 
 - MPS 2021.3 (branch: [maintenance/mps20213](https://github.com/IETS3/iets3.opensource/tree/maintenance/mps20213)) 
 - MPS 2021.2 (branch: [maintenance/mps20212](https://github.com/IETS3/iets3.opensource/tree/maintenance/mps20212)) 
diff --git a/build.gradle b/build.gradle
index 583a9715a7..e341f131c4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -40,7 +40,7 @@ apply plugin: 'download-jbr'
 
 // configure jbr download
 downloadJbr {
-    jbrVersion = '17.0.6-b653.34'
+    jbrVersion = '17.0.8.1-b1000.32'
 }
 
 // detect if we are in a CI build
@@ -53,14 +53,14 @@ if (project.hasProperty("forceCI")) {
 
 def forceLocal = project.hasProperty("forceLocalDependencies")
 
-def major = "2022"
-def minor = "3"
+def major = "2023"
+def minor = "2"
 
 // Dependency versions
 
-ext.mpsVersion = '2022.3.3'
+ext.mpsVersion = '2023.2.1'
 
-def mbeddrVersion = "2022.3+"
+def mbeddrVersion = "2023.2+"
 def mpsQAVersion = "$major.$minor+"
 
 // if building a against a special branch from mbeddr is required add the name here
@@ -413,6 +413,8 @@ publishing {
                 builtBy buildLanguages
                 classifier 'sources'
             }
+
+            pom additionalPomInfo
         }
 
         'org.iets3.core.expr.simpleTypes.runtime'(MavenPublication) {
@@ -428,6 +430,8 @@ publishing {
             }
 
             addDependency(pom, 'org.iets3.core.expr.base.shared', 'shared-runtime', project.version)
+
+            pom additionalPomInfo
         }
 
         'org.iets3.core.expr.datetime.runtime'(MavenPublication) {
@@ -442,6 +446,8 @@ publishing {
             }
 
             addDependency(pom, 'org.iets3.core.expr.base.shared', 'shared-runtime', project.version)
+
+            pom additionalPomInfo
         }
 
         'org.iets3.core.expr.temporal.runtime'(MavenPublication) {
@@ -456,6 +462,8 @@ publishing {
             }
 
             addDependency(pom, 'org.iets3.core.expr.datetime', 'datetime-runtime', project.version)
+
+            pom additionalPomInfo
         }
     }
 }
diff --git a/build/scripts/build-allScripts.xml b/build/scripts/build-allScripts.xml
index d58e1dc6e2..283cb7c701 100644
--- a/build/scripts/build-allScripts.xml
+++ b/build/scripts/build-allScripts.xml
@@ -27,10 +27,6 @@
   <property name="com.mbeddr.platform.build" value="${import.com.mbeddr.platform.com.mbeddr.platform.build}" />
   <property name="com.mbeddr.platform.mbeddr.version" value="${import.com.mbeddr.platform.com.mbeddr.platform.mbeddr.version}" />
   <property name="de.itemis.mps.extensions.versionNumber" value="${import.com.mbeddr.platform.de.itemis.mps.extensions.versionNumber}" />
-  <property name="com.mbeddr.mpsutil.actionsfilter.major.version" value="${import.com.mbeddr.platform.com.mbeddr.mpsutil.actionsfilter.major.version}" />
-  <property name="com.mbeddr.mpsutil.actionsfilter.minor.version" value="${import.com.mbeddr.platform.com.mbeddr.mpsutil.actionsfilter.minor.version}" />
-  <property name="com.mbeddr.mpsutil.actionsfilter.build" value="${import.com.mbeddr.platform.com.mbeddr.mpsutil.actionsfilter.build}" />
-  <property name="com.mbeddr.mpsutil.actionsfilter.mbeddr.version" value="${import.com.mbeddr.platform.com.mbeddr.mpsutil.actionsfilter.mbeddr.version}" />
   <property name="environment" value="env" />
   <property name="env.JAVA_HOME" value="${java.home}/.." />
   <property name="jdk.home" value="${env.JAVA_HOME}" />
@@ -40,7 +36,7 @@
   <path id="path.mps.ant.path">
     <pathelement location="${artifacts.mps}/lib/ant/lib/ant-mps.jar" />
     <fileset dir="${artifacts.mps}/lib">
-      <include name="util.jar" />
+      <include name="util-8.jar" />
     </fileset>
   </path>
   
@@ -96,7 +92,7 @@
     <copy todir="${build.layout}/lib">
       <fileset dir="${iets3.lang.opensource}/solutions/org.iets3.opensource.build.gentests.rt/lib" />
     </copy>
-    <echo file="${build.layout}/build.properties">mps.build.number=${mps.build.number}${line.separator}mps.date=${mps.date}${line.separator}mps.build.vcs.number=${mps.build.vcs.number}${line.separator}mps.teamcity.buildConfName=${mps.teamcity.buildConfName}${line.separator}mps.idea.platform.build.number=${mps.idea.platform.build.number}${line.separator}mps.mps.build.counter=${mps.mps.build.counter}${line.separator}mpsBootstrapCore.version.major=${mpsBootstrapCore.version.major}${line.separator}mpsBootstrapCore.version.minor=${mpsBootstrapCore.version.minor}${line.separator}mpsBootstrapCore.version.bugfixNr=${mpsBootstrapCore.version.bugfixNr}${line.separator}mpsBootstrapCore.version.eap=${mpsBootstrapCore.version.eap}${line.separator}mpsBootstrapCore.version=${mpsBootstrapCore.version}${line.separator}com.mbeddr.platform.major.version=${com.mbeddr.platform.major.version}${line.separator}com.mbeddr.platform.minor.version=${com.mbeddr.platform.minor.version}${line.separator}com.mbeddr.platform.build=${com.mbeddr.platform.build}${line.separator}com.mbeddr.platform.mbeddr.version=${com.mbeddr.platform.mbeddr.version}${line.separator}de.itemis.mps.extensions.versionNumber=${de.itemis.mps.extensions.versionNumber}${line.separator}com.mbeddr.mpsutil.actionsfilter.major.version=${com.mbeddr.mpsutil.actionsfilter.major.version}${line.separator}com.mbeddr.mpsutil.actionsfilter.minor.version=${com.mbeddr.mpsutil.actionsfilter.minor.version}${line.separator}com.mbeddr.mpsutil.actionsfilter.build=${com.mbeddr.mpsutil.actionsfilter.build}${line.separator}com.mbeddr.mpsutil.actionsfilter.mbeddr.version=${com.mbeddr.mpsutil.actionsfilter.mbeddr.version}</echo>
+    <echo file="${build.layout}/build.properties">mps.build.number=${mps.build.number}${line.separator}mps.date=${mps.date}${line.separator}mps.build.vcs.number=${mps.build.vcs.number}${line.separator}mps.teamcity.buildConfName=${mps.teamcity.buildConfName}${line.separator}mps.idea.platform.build.number=${mps.idea.platform.build.number}${line.separator}mps.mps.build.counter=${mps.mps.build.counter}${line.separator}mpsBootstrapCore.version.major=${mpsBootstrapCore.version.major}${line.separator}mpsBootstrapCore.version.minor=${mpsBootstrapCore.version.minor}${line.separator}mpsBootstrapCore.version.bugfixNr=${mpsBootstrapCore.version.bugfixNr}${line.separator}mpsBootstrapCore.version.eap=${mpsBootstrapCore.version.eap}${line.separator}mpsBootstrapCore.version=${mpsBootstrapCore.version}${line.separator}com.mbeddr.platform.major.version=${com.mbeddr.platform.major.version}${line.separator}com.mbeddr.platform.minor.version=${com.mbeddr.platform.minor.version}${line.separator}com.mbeddr.platform.build=${com.mbeddr.platform.build}${line.separator}com.mbeddr.platform.mbeddr.version=${com.mbeddr.platform.mbeddr.version}${line.separator}de.itemis.mps.extensions.versionNumber=${de.itemis.mps.extensions.versionNumber}</echo>
   </target>
   
   <target name="buildDependents" />
@@ -306,11 +302,11 @@
         <path location="${iets3.lang.opensource}/languages/org.iets3.opensource.build.gentests/source_gen" />
       </src>
       <classpath>
-        <fileset file="${artifacts.mps}/lib/mps-core.jar" />
         <fileset file="${artifacts.mps}/lib/mps-annotations.jar" />
         <fileset file="${artifacts.mps}/lib/mps-openapi.jar" />
         <fileset file="${artifacts.mps}/lib/mps-context.jar" />
         <fileset file="${artifacts.mps}/lib/mps-constraints-runtime.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-core.jar" />
         <fileset file="${artifacts.mps}/lib/mps-problem.jar" />
         <fileset file="${artifacts.mps}/lib/mps-feedback-api.jar" />
         <fileset file="${artifacts.mps}/lib/mps-platform.jar" />
@@ -320,10 +316,8 @@
         <fileset file="${artifacts.mps}/lib/mps-behavior-runtime.jar" />
         <fileset file="${artifacts.mps}/lib/mps-closures.jar" />
         <fileset file="${artifacts.mps}/lib/mps-collections.jar" />
-        <fileset file="${artifacts.mps}/lib/mps-logging.jar" />
         <fileset file="${artifacts.mps}/lib/mps-tuples.jar" />
         <fileset file="${artifacts.mps}/lib/mps-references.jar" />
-        <fileset file="${artifacts.mps}/lib/mps-messaging.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-api.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-runtime.jar" />
@@ -333,14 +327,18 @@
         <fileset file="${artifacts.mps}/lib/mps-project-check.jar" />
         <fileset file="${artifacts.mps}/lib/annotations.jar" />
         <fileset file="${artifacts.mps}/lib/app.jar" />
-        <fileset file="${artifacts.mps}/lib/3rd-party-rt.jar" />
+        <fileset file="${artifacts.mps}/lib/app-client.jar" />
+        <fileset file="${artifacts.mps}/lib/lib.jar" />
+        <fileset file="${artifacts.mps}/lib/lib-client.jar" />
         <fileset file="${artifacts.mps}/lib/util.jar" />
         <fileset file="${artifacts.mps}/lib/util_rt.jar" />
+        <fileset file="${artifacts.mps}/lib/util-8.jar" />
         <fileset file="${artifacts.mps}/lib/forms_rt.jar" />
         <fileset file="${artifacts.mps}/lib/java-impl.jar" />
         <fileset file="${artifacts.mps}/lib/jps-model.jar" />
         <fileset file="${artifacts.mps}/lib/testFramework.jar" />
         <fileset file="${artifacts.mps}/lib/stats.jar" />
+        <fileset file="${artifacts.mps}/lib/platform-loader.jar" />
         <fileset file="${artifacts.com.mbeddr.platform}/de.slisson.mps.hacks/languages/de.slisson.mps.hacks/de.slisson.mps.reflection.runtime.jar" />
         <fileset file="${artifacts.mps}/languages/runtimes/jetbrains.mps.analyzers.runtime.jar" />
         <fileset file="${artifacts.mps}/languages/baseLanguage/jetbrains.mps.baseLanguage.logging.runtime.jar" />
@@ -372,11 +370,11 @@
         <path location="${iets3.lang.opensource}/languages/org.iets3.opensource.build.gentests/generator/source_gen" />
       </src>
       <classpath>
-        <fileset file="${artifacts.mps}/lib/mps-core.jar" />
         <fileset file="${artifacts.mps}/lib/mps-annotations.jar" />
         <fileset file="${artifacts.mps}/lib/mps-openapi.jar" />
         <fileset file="${artifacts.mps}/lib/mps-context.jar" />
         <fileset file="${artifacts.mps}/lib/mps-constraints-runtime.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-core.jar" />
         <fileset file="${artifacts.mps}/lib/mps-problem.jar" />
         <fileset file="${artifacts.mps}/lib/mps-feedback-api.jar" />
         <fileset file="${artifacts.mps}/lib/mps-platform.jar" />
@@ -386,10 +384,8 @@
         <fileset file="${artifacts.mps}/lib/mps-behavior-runtime.jar" />
         <fileset file="${artifacts.mps}/lib/mps-closures.jar" />
         <fileset file="${artifacts.mps}/lib/mps-collections.jar" />
-        <fileset file="${artifacts.mps}/lib/mps-logging.jar" />
         <fileset file="${artifacts.mps}/lib/mps-tuples.jar" />
         <fileset file="${artifacts.mps}/lib/mps-references.jar" />
-        <fileset file="${artifacts.mps}/lib/mps-messaging.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-api.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-runtime.jar" />
@@ -400,14 +396,18 @@
         <pathelement path="${build.tmp}/java/out/org.iets3.opensource.build.gentests" />
         <fileset file="${artifacts.mps}/lib/annotations.jar" />
         <fileset file="${artifacts.mps}/lib/app.jar" />
-        <fileset file="${artifacts.mps}/lib/3rd-party-rt.jar" />
+        <fileset file="${artifacts.mps}/lib/app-client.jar" />
+        <fileset file="${artifacts.mps}/lib/lib.jar" />
+        <fileset file="${artifacts.mps}/lib/lib-client.jar" />
         <fileset file="${artifacts.mps}/lib/util.jar" />
         <fileset file="${artifacts.mps}/lib/util_rt.jar" />
+        <fileset file="${artifacts.mps}/lib/util-8.jar" />
         <fileset file="${artifacts.mps}/lib/forms_rt.jar" />
         <fileset file="${artifacts.mps}/lib/java-impl.jar" />
         <fileset file="${artifacts.mps}/lib/jps-model.jar" />
         <fileset file="${artifacts.mps}/lib/testFramework.jar" />
         <fileset file="${artifacts.mps}/lib/stats.jar" />
+        <fileset file="${artifacts.mps}/lib/platform-loader.jar" />
         <fileset file="${artifacts.mps}/languages/baseLanguage/jetbrains.mps.baseLanguage.logging.runtime.jar" />
         <fileset file="${artifacts.mps}/plugins/mps-build/languages/build/jetbrains.mps.build.jar" />
         <fileset file="${artifacts.mps}/plugins/mps-build/languages/build/jetbrains.mps.build.mps.jar" />
diff --git a/code/languages/org.iets3.opensource/.mps/migration.xml b/code/languages/org.iets3.opensource/.mps/migration.xml
index eaae3e276b..5dc30689bf 100644
--- a/code/languages/org.iets3.opensource/.mps/migration.xml
+++ b/code/languages/org.iets3.opensource/.mps/migration.xml
@@ -19,8 +19,10 @@
     <entry key="jetbrains.mps.ide.mpsmigration.v_2021_3.ExtractMPSBootStubs" value="executed" />
     <entry key="jetbrains.mps.ide.mpsmigration.v_2022_3.ExplicitJavaFacetSettings" value="executed" />
     <entry key="jetbrains.mps.ide.mpsmigration.v_2022_3.SplitMPSCoreStub2" value="executed" />
+    <entry key="jetbrains.mps.ide.mpsmigration.v_2023_1.DataFlowStubsToRegularNodes" value="executed" />
+    <entry key="jetbrains.mps.ide.mpsmigration.v_2023_1.JavaModuleSettingsToFacet" value="executed" />
     <entry key="jetbrains.mps.javaVersionMigration_JDKDefault" value="executed" />
     <entry key="jetbrains.mps.v8_elimination" value="executed" />
-    <entry key="project.migrated.version" value="223" />
+    <entry key="project.migrated.version" value="232" />
   </component>
 </project>
\ No newline at end of file
diff --git a/code/languages/org.iets3.opensource/.mps/modules.xml b/code/languages/org.iets3.opensource/.mps/modules.xml
index f9deab2744..feb0109f88 100644
--- a/code/languages/org.iets3.opensource/.mps/modules.xml
+++ b/code/languages/org.iets3.opensource/.mps/modules.xml
@@ -147,6 +147,7 @@
       <modulePath path="$PROJECT_DIR$/solutions/test.org.iets3.core.comments/test.org.iets3.core.comments.msd" folder="core" />
       <modulePath path="$PROJECT_DIR$/solutions/test.ts.components.core/test.ts.components.core.msd" folder="comp" />
       <modulePath path="$PROJECT_DIR$/tests/test.in.expr.os/test.in.expr.os.msd" folder="expr.tests" />
+      <modulePath path="$PROJECT_DIR$/tests/test.node.expr.os/test.node.expr.os.msd" folder="expr.tests" />
       <modulePath path="$PROJECT_DIR$/tests/test.ts.expr.os/test.ts.expr.os.msd" folder="expr.tests" />
     </projectModules>
   </component>
diff --git a/code/languages/org.iets3.opensource/_spreferences/CodeReviewPreferences/module.msd b/code/languages/org.iets3.opensource/_spreferences/CodeReviewPreferences/module.msd
index 7b4bac359c..cf29120930 100644
--- a/code/languages/org.iets3.opensource/_spreferences/CodeReviewPreferences/module.msd
+++ b/code/languages/org.iets3.opensource/_spreferences/CodeReviewPreferences/module.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.__spreferences.CodeReviewPreferences" uuid="~_PreferencesModule#org.iets3.core.__spreferences.CodeReviewPreferences" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.__spreferences.CodeReviewPreferences" uuid="~_PreferencesModule#org.iets3.core.__spreferences.CodeReviewPreferences" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:7d323e61-8358-4656-a071-a2bb68438615:com.mbeddr.core.codereview" version="0" />
@@ -21,7 +20,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/models/org.iets3.opensource.__spreferences.TestExecutionPreferences.mps b/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/models/org.iets3.opensource.__spreferences.TestExecutionPreferences.mps
index e03ac94d51..94fbdd4539 100644
--- a/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/models/org.iets3.opensource.__spreferences.TestExecutionPreferences.mps
+++ b/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/models/org.iets3.opensource.__spreferences.TestExecutionPreferences.mps
@@ -7,7 +7,7 @@
   <imports />
   <registry>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/module.msd b/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/module.msd
index 95f017decf..fd87dcfe6d 100644
--- a/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/module.msd
+++ b/code/languages/org.iets3.opensource/_spreferences/TestExecutionPreferences/module.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.opensource.__spreferences.TestExecutionPreferences" uuid="~_PreferencesModule#org.iets3.opensource.__spreferences.TestExecutionPreferences" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.opensource.__spreferences.TestExecutionPreferences" uuid="~_PreferencesModule#org.iets3.opensource.__spreferences.TestExecutionPreferences" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -20,7 +19,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/behavior.mps
index a82714039b..d37f687f74 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/behavior.mps
@@ -56,7 +56,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -109,7 +109,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -166,7 +166,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -190,7 +190,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -205,6 +205,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -312,7 +313,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -328,7 +329,6 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -895,7 +895,7 @@
                                 <node concept="10Nm6u" id="4bUWUHuPNK" role="3uHU7w" />
                                 <node concept="2OqwBi" id="4bUWUHuPNL" role="3uHU7B">
                                   <node concept="37vLTw" id="4bUWUHuPNM" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="4bUWUHuPNP" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8170u" resolve="it" />
                                   </node>
                                   <node concept="3CFZ6_" id="4bUWUHuPNN" role="2OqNvi">
                                     <node concept="3CFYIy" id="4bUWUHuPNO" role="3CFYIz">
@@ -906,9 +906,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="4bUWUHuPNP" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8170u" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="4bUWUHuPNQ" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8170v" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -919,7 +919,7 @@
                           <node concept="3clFbF" id="4bUWUHuPNU" role="3cqZAp">
                             <node concept="2OqwBi" id="4bUWUHuPNV" role="3clFbG">
                               <node concept="37vLTw" id="4bUWUHuPNW" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4bUWUHuPNZ" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8170w" resolve="it" />
                               </node>
                               <node concept="3CFZ6_" id="4bUWUHuPNX" role="2OqNvi">
                                 <node concept="3CFYIy" id="4bUWUHuPNY" role="3CFYIz">
@@ -929,9 +929,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="4bUWUHuPNZ" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8170w" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="4bUWUHuPO0" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8170x" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1087,7 +1087,7 @@
                                   <node concept="2OqwBi" id="2ZalWa8J0A9" role="3uHU7B">
                                     <node concept="2OqwBi" id="2ZalWa8IZPh" role="2Oq$k0">
                                       <node concept="37vLTw" id="2ZalWa8IZ$Y" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="2ZalWa8ITQs" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8170y" resolve="it" />
                                       </node>
                                       <node concept="3CFZ6_" id="2ZalWa8J05z" role="2OqNvi">
                                         <node concept="3CFYIy" id="2ZalWa8J0fY" role="3CFYIz">
@@ -1103,7 +1103,7 @@
                                 <node concept="3y3z36" id="2ZalWa8IVcD" role="3uHU7B">
                                   <node concept="2OqwBi" id="2ZalWa8IUg3" role="3uHU7B">
                                     <node concept="37vLTw" id="2ZalWa8IU0l" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="2ZalWa8ITQs" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8170y" resolve="it" />
                                     </node>
                                     <node concept="3CFZ6_" id="2ZalWa8IUtL" role="2OqNvi">
                                       <node concept="3CFYIy" id="2ZalWa8IUEI" role="3CFYIz">
@@ -1116,9 +1116,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="2ZalWa8ITQs" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8170y" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="2ZalWa8ITQt" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8170z" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1129,7 +1129,7 @@
                           <node concept="3clFbF" id="2ZalWa8IWsH" role="3cqZAp">
                             <node concept="2OqwBi" id="2ZalWa8IWHg" role="3clFbG">
                               <node concept="37vLTw" id="2ZalWa8IWsG" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2ZalWa8IWgt" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8170$" resolve="it" />
                               </node>
                               <node concept="3CFZ6_" id="2ZalWa8IWWN" role="2OqNvi">
                                 <node concept="3CFYIy" id="2ZalWa8IX7j" role="3CFYIz">
@@ -1139,9 +1139,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="2ZalWa8IWgt" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8170$" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="2ZalWa8IWgu" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8170_" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1636,7 +1636,7 @@
                     <node concept="3clFbF" id="XhdFKw2TSS" role="3cqZAp">
                       <node concept="2OqwBi" id="XhdFKw2U3M" role="3clFbG">
                         <node concept="37vLTw" id="XhdFKw2TSR" role="2Oq$k0">
-                          <ref role="3cqZAo" node="XhdFKw2TOD" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8170A" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="XhdFKw2Uhn" role="2OqNvi">
                           <ref role="3TsBF5" to="l80j:XhdFKvXSNs" resolve="msg" />
@@ -1644,9 +1644,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="XhdFKw2TOD" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8170A" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="XhdFKw2TOE" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8170B" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/editor.mps
index 4573949fff..391fe6d0fe 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/editor.mps
@@ -69,7 +69,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
@@ -121,7 +121,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -143,7 +143,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/intentions.mps
index 722cf47b00..3123cdfdf4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/intentions.mps
@@ -75,7 +75,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -144,7 +144,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/org.iets3.analysis.base.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/org.iets3.analysis.base.migration.mps
index 0271229ca5..53521fe078 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/org.iets3.analysis.base.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/org.iets3.analysis.base.migration.mps
@@ -12,7 +12,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/plugin.mps
index 442181806d..7ead2b44db 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/plugin.mps
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:d354209e-0bea-497f-b905-d66f72900fa8(org.iets3.analysis.base.plugin)">
   <persistence version="9" />
-  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="-1" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="-1" />
@@ -127,7 +126,7 @@
         <child id="1068498886297" name="rValue" index="37vLTx" />
         <child id="1068498886295" name="lValue" index="37vLTJ" />
       </concept>
-      <concept id="2323553266850475941" name="jetbrains.mps.baseLanguage.structure.IHasModifiers" flags="ng" index="2frcj7">
+      <concept id="2323553266850475941" name="jetbrains.mps.baseLanguage.structure.IHasModifiers" flags="ngI" index="2frcj7">
         <child id="2323553266850475953" name="modifiers" index="2frcjj" />
       </concept>
       <concept id="4836112446988635817" name="jetbrains.mps.baseLanguage.structure.UndefinedType" flags="in" index="2jxLKc" />
@@ -144,15 +143,10 @@
       </concept>
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
-        <child id="1188214630783" name="value" index="2B76xF" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
-      <concept id="1188214545140" name="jetbrains.mps.baseLanguage.structure.AnnotationInstanceValue" flags="ng" index="2B6LJw">
-        <reference id="1188214555875" name="key" index="2B6OnR" />
-        <child id="1188214607812" name="value" index="2B70Vg" />
-      </concept>
       <concept id="1095950406618" name="jetbrains.mps.baseLanguage.structure.DivExpression" flags="nn" index="FJ1c_" />
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
         <reference id="2820489544401957798" name="classifier" index="HV5vE" />
@@ -229,7 +223,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ" />
@@ -310,7 +304,7 @@
         <child id="1160998896846" name="condition" index="1gVkn0" />
         <child id="1160998916832" name="message" index="1gVpfI" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -345,7 +339,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -427,6 +421,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -471,7 +466,7 @@
       <concept id="1213999088275" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierFieldDeclaration" flags="ig" index="2BZ0e9" />
       <concept id="1213999117680" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierFieldAccessOperation" flags="nn" index="2BZ7hE" />
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
     </language>
@@ -539,7 +534,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -600,7 +595,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="4611582986551314327" name="jetbrains.mps.baseLanguage.collections.structure.OfTypeOperation" flags="nn" index="UnYns">
@@ -1054,7 +1048,7 @@
                               <ref role="2pJxcJ" to="l80j:XhdFKvXSNs" resolve="msg" />
                               <node concept="WxPPo" id="uuJ7IpZtu8" role="28ntcv">
                                 <node concept="37vLTw" id="rj7uJEnjLr" role="WxPPp">
-                                  <ref role="3cqZAo" node="rj7uJEnjLs" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8170C" resolve="it" />
                                 </node>
                               </node>
                             </node>
@@ -1062,9 +1056,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="rj7uJEnjLs" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8170C" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="rj7uJEnjLt" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8170D" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1389,7 +1383,7 @@
                             <node concept="3cpWs3" id="1kfQzZFABkd" role="37wK5m">
                               <node concept="2OqwBi" id="1kfQzZFABnW" role="3uHU7w">
                                 <node concept="37vLTw" id="1kfQzZFABkr" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1kfQzZFAAOO" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8170E" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="1kfQzZFABt0" role="2OqNvi">
                                   <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -1403,9 +1397,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1kfQzZFAAOO" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8170E" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1kfQzZFAAOP" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8170F" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1702,6 +1696,7 @@
         </node>
       </node>
     </node>
+    <node concept="3Tm1VV" id="2BYqfe8oBbn" role="1B3o_S" />
     <node concept="2tJIrI" id="6F_VKsV$CPw" role="jymVt" />
     <node concept="3clFb_" id="6F_VKsV$F7X" role="jymVt">
       <property role="TrG5h" value="solverTask" />
@@ -1724,11 +1719,6 @@
     <node concept="3clFb_" id="2BYqfe8oBbr" role="jymVt">
       <property role="TrG5h" value="run" />
       <node concept="3Tm1VV" id="2BYqfe8oBbs" role="1B3o_S" />
-      <node concept="3vKaQO" id="3x8VOVHeGdp" role="3clF45">
-        <node concept="3uibUv" id="3x8VOVHeGdr" role="3O5elw">
-          <ref role="3uigEE" to="gdgh:5zG5$Lyex1G" resolve="IResult" />
-        </node>
-      </node>
       <node concept="3clFbS" id="2BYqfe8oBbv" role="3clF47">
         <node concept="3J1_TO" id="2BYqfe8oBbw" role="3cqZAp">
           <node concept="3uVAMA" id="2BYqfe8oBbx" role="1zxBo5">
@@ -1894,6 +1884,18 @@
       <node concept="2AHcQZ" id="3x8VOVHeF6q" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
+      <node concept="3vKaQO" id="3x8VOVHeGdp" role="3clF45">
+        <node concept="3uibUv" id="3x8VOVHeGdr" role="3O5elw">
+          <ref role="3uigEE" to="gdgh:5zG5$Lyex1G" resolve="IResult" />
+        </node>
+      </node>
+    </node>
+    <node concept="3UR2Jj" id="3NwcubmfGxi" role="lGtFl">
+      <node concept="TZ5HA" id="3NwcubmfGxj" role="TZ5H$">
+        <node concept="1dT_AC" id="3NwcubmfGxk" role="1dT_Ay">
+          <property role="1dT_AB" value="Wraps an actual AbstractSolverTask and runs it." />
+        </node>
+      </node>
     </node>
     <node concept="2tJIrI" id="6F_VKsVzLMq" role="jymVt" />
     <node concept="3clFb_" id="6F_VKsVzO6g" role="jymVt">
@@ -1940,14 +1942,6 @@
         </node>
       </node>
     </node>
-    <node concept="3UR2Jj" id="3NwcubmfGxi" role="lGtFl">
-      <node concept="TZ5HA" id="3NwcubmfGxj" role="TZ5H$">
-        <node concept="1dT_AC" id="3NwcubmfGxk" role="1dT_Ay">
-          <property role="1dT_AB" value="Wraps an actual AbstractSolverTask and runs it." />
-        </node>
-      </node>
-    </node>
-    <node concept="3Tm1VV" id="2BYqfe8oBbn" role="1B3o_S" />
     <node concept="3uibUv" id="3x8VOVHeErL" role="EKbjA">
       <ref role="3uigEE" node="3x8VOVHeBE$" resolve="ITask" />
     </node>
@@ -3236,7 +3230,7 @@
                                     <node concept="3fqX7Q" id="5BRQP3Ri6nE" role="3clFbG">
                                       <node concept="2OqwBi" id="5BRQP3Ri6nF" role="3fr31v">
                                         <node concept="37vLTw" id="5BRQP3Ri6nG" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5BRQP3Ri6nI" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8170G" resolve="it" />
                                         </node>
                                         <node concept="liA8E" id="5BRQP3Ri6nH" role="2OqNvi">
                                           <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
@@ -3245,9 +3239,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="5BRQP3Ri6nI" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8170G" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="5BRQP3Ri6nJ" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8170H" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -3259,14 +3253,14 @@
                                   <node concept="1rXfSq" id="5BRQP3Ri6nO" role="3clFbG">
                                     <ref role="37wK5l" node="6QuUnma$l2x" resolve="messageOf" />
                                     <node concept="37vLTw" id="5BRQP3Ri6nP" role="37wK5m">
-                                      <ref role="3cqZAo" node="5BRQP3Ri6nQ" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8170I" resolve="it" />
                                     </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="5BRQP3Ri6nQ" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8170I" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="5BRQP3Ri6nR" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8170J" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -4185,7 +4179,7 @@
                               </node>
                             </node>
                             <node concept="37vLTw" id="3NwcubmjYQE" role="37wK5m">
-                              <ref role="3cqZAo" node="3NwcubmjYQG" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8170K" resolve="it" />
                             </node>
                             <node concept="37vLTw" id="3NwcubmjYQF" role="37wK5m">
                               <ref role="3cqZAo" node="3NwcubmjYQs" resolve="errorMessage" />
@@ -4194,9 +4188,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3NwcubmjYQG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8170K" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3NwcubmjYQH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8170L" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -4221,7 +4215,6 @@
       <node concept="3Tm6S6" id="6QuUnma$l2z" role="1B3o_S" />
     </node>
     <node concept="2tJIrI" id="XMB_2ctKZZ" role="jymVt" />
-    <node concept="3Tm1VV" id="2f_Mi5mAhji" role="1B3o_S" />
     <node concept="2YIFZL" id="XMB_2cv6_1" role="jymVt">
       <property role="TrG5h" value="threadFactory" />
       <node concept="3clFbS" id="XMB_2cv6_5" role="3clF47">
@@ -4338,6 +4331,7 @@
       </node>
     </node>
     <node concept="2tJIrI" id="6pPfAzJFl8d" role="jymVt" />
+    <node concept="3Tm1VV" id="2f_Mi5mAhji" role="1B3o_S" />
     <node concept="2YIFZL" id="6pPfAzJEcXr" role="jymVt">
       <property role="TrG5h" value="makeWriteAcccessEnv" />
       <node concept="3clFbS" id="6pPfAzJEcXv" role="3clF47">
@@ -4420,6 +4414,7 @@
   <node concept="312cEu" id="2f_Mi5n8FVl">
     <property role="TrG5h" value="SolverReportItem" />
     <property role="3GE5qa" value="AsyncISolvable" />
+    <node concept="3Tm1VV" id="2f_Mi5n8FVm" role="1B3o_S" />
     <node concept="3uibUv" id="2f_Mi5n8Gsd" role="1zkMxy">
       <ref role="3uigEE" to="d6hs:~NodeReportItemBase" resolve="NodeReportItemBase" />
     </node>
@@ -4488,7 +4483,6 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="3Tm1VV" id="2f_Mi5n8FVm" role="1B3o_S" />
   </node>
   <node concept="2uRRBy" id="2f_Mi5n7Kbp">
     <property role="TrG5h" value="TypecheckingSolverTask" />
@@ -4625,6 +4619,7 @@
     </node>
     <node concept="2tJIrI" id="3K_gMq6RgTa" role="jymVt" />
     <node concept="2tJIrI" id="3K_gMq6RgVp" role="jymVt" />
+    <node concept="3Tm1VV" id="2f_Mi5n7Nep" role="1B3o_S" />
     <node concept="3uibUv" id="2f_Mi5n7NWO" role="1zkMxy">
       <ref role="3uigEE" to="n70j:~BaseEditorChecker" resolve="BaseEditorChecker" />
     </node>
@@ -4794,7 +4789,7 @@
                             <node concept="3y3z36" id="4fQRPNhf0YQ" role="3uHU7B">
                               <node concept="2OqwBi" id="4fQRPNheYI1" role="3uHU7B">
                                 <node concept="37vLTw" id="4fQRPNheYjW" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4fQRPNheXGq" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8170M" resolve="it" />
                                 </node>
                                 <node concept="2OwXpG" id="4fQRPNhf0wm" role="2OqNvi">
                                   <ref role="2Oxat5" node="2f_Mi5n9flk" resolve="node" />
@@ -4806,7 +4801,7 @@
                               <node concept="10Nm6u" id="2SyD3e2oUXX" role="3uHU7w" />
                               <node concept="2OqwBi" id="2SyD3e2oROp" role="3uHU7B">
                                 <node concept="37vLTw" id="2SyD3e2oRly" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4fQRPNheXGq" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8170M" resolve="it" />
                                 </node>
                                 <node concept="2OwXpG" id="2SyD3e2oTkN" role="2OqNvi">
                                   <ref role="2Oxat5" node="2f_Mi5n99G5" resolve="type" />
@@ -4816,9 +4811,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="4fQRPNheXGq" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8170M" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="4fQRPNheXGr" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8170N" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -4830,14 +4825,14 @@
                         <node concept="1rXfSq" id="1ukHH8$vbXu" role="3clFbG">
                           <ref role="37wK5l" node="2f_Mi5ndzsh" resolve="toHighlighterMessage" />
                           <node concept="37vLTw" id="1ukHH8$vcFP" role="37wK5m">
-                            <ref role="3cqZAo" node="1ukHH8$vaHs" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8170O" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1ukHH8$vaHs" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8170O" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1ukHH8$vaHt" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8170P" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -5092,7 +5087,6 @@
         </node>
       </node>
     </node>
-    <node concept="3Tm1VV" id="2f_Mi5n7Nep" role="1B3o_S" />
   </node>
   <node concept="312cEu" id="7S7fpHXZlVJ">
     <property role="TrG5h" value="MessageBuffer" />
@@ -5292,6 +5286,7 @@
       <node concept="3Tm1VV" id="7S7fpHXZFFi" role="1B3o_S" />
     </node>
     <node concept="2tJIrI" id="7S7fpHXZAQr" role="jymVt" />
+    <node concept="3Tm1VV" id="7S7fpHXZlVK" role="1B3o_S" />
     <node concept="3UR2Jj" id="5BRQP3SaNlT" role="lGtFl">
       <node concept="TZ5HA" id="5BRQP3SaNlU" role="TZ5H$">
         <node concept="1dT_AC" id="5BRQP3SaNlV" role="1dT_Ay">
@@ -5299,7 +5294,6 @@
         </node>
       </node>
     </node>
-    <node concept="3Tm1VV" id="7S7fpHXZlVK" role="1B3o_S" />
   </node>
   <node concept="2uRRBy" id="7Rre3Vrv87k">
     <property role="TrG5h" value="ISolvableMonitor" />
@@ -5588,6 +5582,7 @@
       </node>
       <node concept="3Tm1VV" id="2S0X1v6MpVM" role="1B3o_S" />
     </node>
+    <node concept="3Tm1VV" id="7Rre3VrwcyN" role="1B3o_S" />
     <node concept="3uibUv" id="7Rre3VrwcV2" role="EKbjA">
       <ref role="3uigEE" to="jkny:~StatusBarWidget" resolve="StatusBarWidget" />
     </node>
@@ -5990,46 +5985,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="3clFb_" id="2fgSOgkgxBz" role="jymVt">
-      <property role="TrG5h" value="getMaxPossibleText" />
-      <node concept="3Tm1VV" id="2fgSOgkgxB_" role="1B3o_S" />
-      <node concept="2AHcQZ" id="2fgSOgkgxBB" role="2AJF6D">
-        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
-        <node concept="2B6LJw" id="7tc9lTMfnGo" role="2B76xF">
-          <ref role="2B6OnR" to="wyt6:~Deprecated.since()" resolve="since" />
-          <node concept="Xl_RD" id="7tc9lTMfnGk" role="2B70Vg">
-            <property role="Xl_RC" value="2020.2" />
-          </node>
-        </node>
-        <node concept="2B6LJw" id="7tc9lTMfnGp" role="2B76xF">
-          <ref role="2B6OnR" to="wyt6:~Deprecated.forRemoval()" resolve="forRemoval" />
-          <node concept="3clFbT" id="7tc9lTMfnGq" role="2B70Vg">
-            <property role="3clFbU" value="true" />
-          </node>
-        </node>
-      </node>
-      <node concept="2AHcQZ" id="2fgSOgkgxBC" role="2AJF6D">
-        <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
-      </node>
-      <node concept="3uibUv" id="2fgSOgkgxBJ" role="3clF45">
-        <ref role="3uigEE" to="wyt6:~String" resolve="String" />
-      </node>
-      <node concept="3clFbS" id="2fgSOgkgxBN" role="3clF47">
-        <node concept="3clFbF" id="2fgSOgkgCy3" role="3cqZAp">
-          <node concept="Xl_RD" id="2fgSOgkgCy2" role="3clFbG">
-            <property role="Xl_RC" value="ISolvables" />
-          </node>
-        </node>
-      </node>
-      <node concept="2AHcQZ" id="2fgSOgkgxBO" role="2AJF6D">
-        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
-      </node>
-      <node concept="P$JXv" id="7tc9lTMfnGl" role="lGtFl">
-        <node concept="TZ5HI" id="7tc9lTMfnGm" role="3nqlJM">
-          <node concept="TZ5HA" id="7tc9lTMfnGn" role="3HnX3l" />
-        </node>
-      </node>
-    </node>
+    <node concept="2tJIrI" id="4z0AnX4KPM9" role="jymVt" />
     <node concept="3clFb_" id="2S0X1v6MAGK" role="jymVt">
       <property role="TrG5h" value="getClickConsumer" />
       <node concept="3Tm1VV" id="2S0X1v6MAGL" role="1B3o_S" />
@@ -6816,7 +6772,6 @@
       </node>
     </node>
     <node concept="2tJIrI" id="2fgSOgkf0a8" role="jymVt" />
-    <node concept="3Tm1VV" id="7Rre3VrwcyN" role="1B3o_S" />
   </node>
   <node concept="312cEu" id="2f_Mi5mXp8A">
     <property role="TrG5h" value="MessageUI" />
@@ -6903,6 +6858,7 @@
     </node>
     <node concept="2tJIrI" id="1ssmHrA8W6Q" role="jymVt" />
     <node concept="2tJIrI" id="6celbXwLMMe" role="jymVt" />
+    <node concept="3Tm1VV" id="2f_Mi5mXmsD" role="1B3o_S" />
     <node concept="3clFb_" id="6celbXwLNaj" role="jymVt">
       <property role="TrG5h" value="hashCode" />
       <node concept="3Tm1VV" id="6celbXwLNak" role="1B3o_S" />
@@ -7158,7 +7114,6 @@
         </node>
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@@ -7233,18 +7188,18 @@
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               </node>
               <node concept="iZEcu" id="2E$J0GoewBq" role="2OqNvi" />
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+            <node concept="2OqwBi" id="121_t0FbBg2" role="37vLTJ">
+              <node concept="Xjq3P" id="121_t0FbBat" role="2Oq$k0" />
+              <node concept="2OwXpG" id="2E$J0Goevxz" role="2OqNvi">
+                <ref role="2Oxat5" node="2E$J0Goej6J" resolve="solvable" />
+              </node>
+            </node>
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         <node concept="3cpWs8" id="2E$J0GolDIL" role="3cqZAp">
@@ -7573,6 +7528,7 @@
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     <node concept="2tJIrI" id="121_t0FcxA$" role="jymVt" />
     <node concept="2tJIrI" id="121_t0FcxDu" role="jymVt" />
+    <node concept="3Tm1VV" id="121_t0Fbl3y" role="1B3o_S" />
     <node concept="3clFb_" id="121_t0FcxIS" role="jymVt">
       <property role="TrG5h" value="toString" />
       <node concept="3Tm1VV" id="121_t0FcxIT" role="1B3o_S" />
@@ -7946,7 +7902,6 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
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@@ -8608,10 +8563,10 @@
       <node concept="17QB3L" id="5J8_5nlyCQD" role="3clF45" />
     </node>
     <node concept="2tJIrI" id="2S0X1v6Na8U" role="jymVt" />
+    <node concept="3Tm1VV" id="2S0X1v6MOlX" role="1B3o_S" />
     <node concept="3uibUv" id="2S0X1v6MRig" role="1zkMxy">
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   <node concept="312cEu" id="7Rre3Vrvh5R">
     <property role="TrG5h" value="ISolvableMonitorNotification" />
@@ -8714,13 +8669,10 @@
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-              <ref role="37wK5l" to="jkny:~StatusBar.addWidget(com.intellij.openapi.wm.StatusBarWidget,com.intellij.openapi.Disposable)" resolve="addWidget" />
+              <ref role="37wK5l" to="jkny:~StatusBar.addWidget(com.intellij.openapi.wm.StatusBarWidget)" resolve="addWidget" />
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-                <ref role="3cqZAo" node="5do60t9v3W2" resolve="myStatusBar" />
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@@ -8835,6 +8787,7 @@
       </node>
       <node concept="3Tm1VV" id="121_t0FjFSO" role="1B3o_S" />
     </node>
+    <node concept="3Tm1VV" id="121_t0FdgSn" role="1B3o_S" />
     <node concept="3uibUv" id="121_t0FdgYi" role="EKbjA">
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@@ -8989,7 +8942,6 @@
     <node concept="3uibUv" id="121_t0FdgXe" role="1zkMxy">
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     <property role="TrG5h" value="PopupPanel" />
@@ -9102,10 +9054,10 @@
       </node>
     </node>
     <node concept="2tJIrI" id="121_t0F9Fe_" role="jymVt" />
+    <node concept="3Tm1VV" id="121_t0F9F89" role="1B3o_S" />
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     <property role="TrG5h" value="CancelableSupplier" />
@@ -9283,12 +9235,6 @@
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       <node concept="3Tm1VV" id="6QuUnmaHOAs" role="1B3o_S" />
@@ -9388,1118 +9334,1124 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
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-    <property role="TrG5h" value="SolverTaskCreator" />
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-        <ref role="1Pybhc" to="6t7w:~DateTimeFormatter" resolve="DateTimeFormatter" />
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-          <property role="Xl_RC" value="dd.MM.yyyy HH:mm:ss" />
-        </node>
+    <node concept="3uibUv" id="6pPfAzJ_T1q" role="EKbjA">
+      <ref role="3uigEE" to="5zyv:~Callable" resolve="Callable" />
+      <node concept="16syzq" id="6pPfAzJ_TP9" role="11_B2D">
+        <ref role="16sUi3" node="6QuUnmaPiox" resolve="T" />
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     </node>
-    <node concept="312cEg" id="5IHOL7YY8Qk" role="jymVt">
-      <property role="TrG5h" value="statusUpdater" />
+  </node>
+  <node concept="312cEu" id="3x8VOVHeB0Y">
+    <property role="3GE5qa" value="AsyncISolvable" />
+    <property role="TrG5h" value="CancelledTask" />
+    <node concept="3Tm1VV" id="3x8VOVHeB0Z" role="1B3o_S" />
+    <node concept="2tJIrI" id="3x8VOVHeBsT" role="jymVt" />
+    <node concept="Wx3nA" id="3x8VOVHgSEk" role="jymVt">
+      <property role="TrG5h" value="instance" />
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-          <ref role="3uigEE" node="121_t0Fbt3x" resolve="ISolvableTaskStatus" />
+      <node concept="3uibUv" id="3x8VOVHgSEn" role="1tU5fm">
+        <ref role="3uigEE" node="3x8VOVHeB0Y" resolve="CancelledTask" />
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+      <node concept="3Tm6S6" id="3x8VOVHgSEm" role="1B3o_S" />
+      <node concept="2ShNRf" id="3x8VOVHgTmx" role="33vP2m">
+        <node concept="HV5vD" id="3x8VOVHgZ$x" role="2ShVmc">
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-        <ref role="ehGHo" to="l80j:4pkidg67Lfn" resolve="ISolvable" />
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+    <node concept="3uibUv" id="3x8VOVHeG$o" role="EKbjA">
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-          <ref role="ehGHo" to="l80j:7rOSrvnFUQX" resolve="AbstractSolverTask" />
+    <node concept="3clFb_" id="3x8VOVHeG$U" role="jymVt">
+      <property role="TrG5h" value="run" />
+      <node concept="3vKaQO" id="3x8VOVHeG$V" role="3clF45">
+        <node concept="3uibUv" id="3x8VOVHeG$W" role="3O5elw">
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-                <ref role="2Oxat5" node="5IHOL7YY8Qk" resolve="statusUpdater" />
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+      <node concept="3clFbS" id="3x8VOVHeG$Z" role="3clF47">
+        <node concept="3clFbF" id="3x8VOVHeKJD" role="3cqZAp">
+          <node concept="2YIFZM" id="3x8VOVHeKO7" role="3clFbG">
+            <ref role="37wK5l" to="33ny:~Collections.singletonList(java.lang.Object)" resolve="singletonList" />
+            <ref role="1Pybhc" to="33ny:~Collections" resolve="Collections" />
+            <node concept="2YIFZM" id="3x8VOVHeMgF" role="37wK5m">
+              <ref role="37wK5l" to="gdgh:2esy_3orpPr" resolve="make" />
+              <ref role="1Pybhc" to="gdgh:5zG5$Lyex1G" resolve="IResult" />
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-              <node concept="2OwXpG" id="5IHOL7YYaV7" role="2OqNvi">
-                <ref role="2Oxat5" node="5IHOL7YY8Qp" resolve="solvable" />
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+                <ref role="1Pybhc" to="33ny:~Collections" resolve="Collections" />
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-            <node concept="37vLTw" id="5IHOL7YYbvR" role="37vLTx">
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+    <property role="3GE5qa" value="AsyncISolvable" />
+    <property role="TrG5h" value="ExecOnPooledThreadInWriteAccess" />
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+    <node concept="312cEg" id="6pPfAzJ$odX" role="jymVt">
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+      <property role="3TUv4t" value="true" />
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+        </node>
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+        <node concept="TUZQ0" id="5IHOL7YWOly" role="3nqlJM">
+          <property role="TUZQ4" value="informed after SolverTask could be successfully created" />
+          <node concept="zr_55" id="5IHOL7YWOlz" role="zr_5Q">
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+        <node concept="x79VA" id="5IHOL7YWOl$" role="3nqlJM">
+          <property role="x79VB" value="the wrapped SolverTask (might be a dummy if error occurred)" />
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+                <node concept="Xl_RD" id="5IHOL7YXTcE" role="3uHU7B">
+                  <property role="Xl_RC" value="No Solver Task was created " />
                 </node>
-                <node concept="3uVAMA" id="7BQlBYsGlMA" role="1zxBo5">
-                  <node concept="3clFbS" id="7BQlBYsGlMB" role="1zc67A">
-                    <node concept="YS8fn" id="7BQlBYsGlMC" role="3cqZAp">
-                      <node concept="2ShNRf" id="7BQlBYsGlMD" role="YScLw">
-                        <node concept="1pGfFk" id="7BQlBYsGlME" role="2ShVmc">
-                          <property role="373rjd" value="true" />
-                          <ref role="37wK5l" to="wyt6:~RuntimeException.&lt;init&gt;(java.lang.Throwable)" resolve="RuntimeException" />
-                          <node concept="37vLTw" id="7BQlBYsGlMF" role="37wK5m">
-                            <ref role="3cqZAo" node="7BQlBYsGlMG" resolve="e" />
-                          </node>
-                        </node>
-                      </node>
-                    </node>
+                <node concept="2OqwBi" id="5IHOL7YXTcF" role="3uHU7w">
+                  <node concept="2YIFZM" id="5IHOL7YXTcG" role="2Oq$k0">
+                    <ref role="1Pybhc" to="28m1:~LocalDateTime" resolve="LocalDateTime" />
+                    <ref role="37wK5l" to="28m1:~LocalDateTime.now()" resolve="now" />
                   </node>
-                  <node concept="XOnhg" id="7BQlBYsGlMG" role="1zc67B">
-                    <property role="TrG5h" value="e" />
-                    <node concept="nSUau" id="7BQlBYsGlMH" role="1tU5fm">
-                      <node concept="3uibUv" id="7BQlBYsGlMI" role="nSUat">
-                        <ref role="3uigEE" to="wyt6:~Exception" resolve="Exception" />
-                      </node>
+                  <node concept="liA8E" id="5IHOL7YXTcH" role="2OqNvi">
+                    <ref role="37wK5l" to="28m1:~LocalDateTime.format(java.time.format.DateTimeFormatter)" resolve="format" />
+                    <node concept="37vLTw" id="5IHOL7YY3Ou" role="37wK5m">
+                      <ref role="3cqZAo" node="5IHOL7YY1bQ" resolve="formatter" />
                     </node>
                   </node>
                 </node>
               </node>
             </node>
           </node>
-          <node concept="37vLTw" id="7BQlBYsGlMJ" role="ukAjM">
-            <ref role="3cqZAo" node="7BQlBYsGlMl" resolve="repository" />
+          <node concept="3clFbC" id="5IHOL7YXTcI" role="3clFbw">
+            <node concept="10Nm6u" id="5IHOL7YXTcJ" role="3uHU7w" />
+            <node concept="37vLTw" id="5IHOL7YXTcK" role="3uHU7B">
+              <ref role="3cqZAo" node="5IHOL7YXTcY" resolve="st" />
+            </node>
           </node>
-        </node>
-        <node concept="3clFbF" id="7BQlBYsGlMK" role="3cqZAp">
-          <node concept="37vLTw" id="7BQlBYsGlML" role="3clFbG">
-            <ref role="3cqZAo" node="7BQlBYsGlMp" resolve="runWithin" />
+          <node concept="3eNFk2" id="5IHOL7YXTcL" role="3eNLev">
+            <node concept="3y3z36" id="5IHOL7YXTcM" role="3eO9$A">
+              <node concept="10Nm6u" id="5IHOL7YXTcN" role="3uHU7w" />
+              <node concept="2OqwBi" id="5IHOL7YXTcO" role="3uHU7B">
+                <node concept="37vLTw" id="5IHOL7YXTcP" role="2Oq$k0">
+                  <ref role="3cqZAo" node="5IHOL7YXTcY" resolve="st" />
+                </node>
+                <node concept="2qgKlT" id="5IHOL7YXTcQ" role="2OqNvi">
+                  <ref role="37wK5l" to="1jcu:7rOSrvnH60y" resolve="getWarning" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbS" id="5IHOL7YXTcR" role="3eOfB_">
+              <node concept="3cpWs6" id="5IHOL7YXTcS" role="3cqZAp">
+                <node concept="2OqwBi" id="5IHOL7YXTcT" role="3cqZAk">
+                  <node concept="37vLTw" id="5IHOL7YXTcU" role="2Oq$k0">
+                    <ref role="3cqZAo" node="5IHOL7YXTcY" resolve="st" />
+                  </node>
+                  <node concept="2qgKlT" id="5IHOL7YXTcV" role="2OqNvi">
+                    <ref role="37wK5l" to="1jcu:7rOSrvnH60y" resolve="getWarning" />
+                  </node>
+                </node>
+              </node>
+            </node>
           </node>
         </node>
-      </node>
-      <node concept="16syzq" id="7BQlBYsGlMh" role="3clF45">
-        <ref role="16sUi3" node="7BQlBYsGxBM" resolve="Y" />
-      </node>
-      <node concept="37vLTG" id="7BQlBYsGlMi" role="3clF46">
-        <property role="TrG5h" value="executionCode" />
-        <node concept="3uibUv" id="7BQlBYsGlMj" role="1tU5fm">
-          <ref role="3uigEE" to="5zyv:~Callable" resolve="Callable" />
-          <node concept="16syzq" id="7BQlBYsGlMk" role="11_B2D">
-            <ref role="16sUi3" node="7BQlBYsGxBM" resolve="Y" />
-          </node>
+        <node concept="3clFbF" id="5IHOL7YXTcW" role="3cqZAp">
+          <node concept="10Nm6u" id="5IHOL7YXTcX" role="3clFbG" />
         </node>
       </node>
-      <node concept="37vLTG" id="7BQlBYsGlMl" role="3clF46">
-        <property role="TrG5h" value="repository" />
-        <property role="3TUv4t" value="true" />
-        <node concept="3uibUv" id="7BQlBYsGlMm" role="1tU5fm">
-          <ref role="3uigEE" to="lui2:~SRepository" resolve="SRepository" />
+      <node concept="37vLTG" id="5IHOL7YXTcY" role="3clF46">
+        <property role="TrG5h" value="st" />
+        <node concept="3Tqbb2" id="5IHOL7YXTcZ" role="1tU5fm">
+          <ref role="ehGHo" to="l80j:7rOSrvnFUQX" resolve="AbstractSolverTask" />
         </node>
       </node>
-      <node concept="3Tm1VV" id="7BQlBYsH6fU" role="1B3o_S" />
-      <node concept="16euLQ" id="7BQlBYsGxBM" role="16eVyc">
-        <property role="TrG5h" value="Y" />
+      <node concept="3Tm6S6" id="5IHOL7YXTd0" role="1B3o_S" />
+      <node concept="17QB3L" id="5IHOL7YXTd1" role="3clF45" />
+    </node>
+    <node concept="3Tm1VV" id="5IHOL7YWLYx" role="1B3o_S" />
+    <node concept="3uibUv" id="5IHOL7YZwfK" role="EKbjA">
+      <ref role="3uigEE" to="82uw:~Supplier" resolve="Supplier" />
+      <node concept="3uibUv" id="5IHOL7YZxAR" role="11_B2D">
+        <ref role="3uigEE" node="3x8VOVHeBE$" resolve="ITask" />
       </node>
     </node>
   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/structure.mps
index 838a00ac8f..a3bde6acfe 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/models/structure.mps
@@ -63,7 +63,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/org.iets3.analysis.base.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/org.iets3.analysis.base.mpl
index aef92e2684..cbcdc6229b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/org.iets3.analysis.base.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.analysis.base/org.iets3.analysis.base.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
@@ -32,7 +31,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -61,7 +60,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/actions.mps
index 42d215f284..f6ad2be177 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/actions.mps
@@ -73,7 +73,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/behavior.mps
index 0b81ca0e57..b081783021 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/behavior.mps
@@ -5,7 +5,7 @@
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="-1" />
     <use id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="-1" />
@@ -99,7 +99,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1188220165133" name="jetbrains.mps.baseLanguage.structure.ArrayLiteral" flags="nn" index="2BsdOp">
@@ -214,7 +214,7 @@
         <child id="1154542793668" name="componentType" index="3g7fb8" />
         <child id="1154542803372" name="initValue" index="3g7hyw" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -237,7 +237,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -275,6 +275,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -427,7 +428,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -476,7 +477,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -565,7 +565,7 @@
                           <ref role="cht4Q" to="w9y2:6LfBX8Yivpj" resolve="IComponentsChunkContent" />
                         </node>
                         <node concept="37vLTw" id="5kXA14n1pUv" role="1m5AlR">
-                          <ref role="3cqZAo" node="5kXA14n1pRF" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8170Q" resolve="it" />
                         </node>
                       </node>
                       <node concept="3TrcHB" id="5kXA14n1qjG" role="2OqNvi">
@@ -574,9 +574,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5kXA14n1pRF" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8170Q" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5kXA14n1pRG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8170R" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -762,7 +762,7 @@
                           <node concept="3clFbF" id="7Zvsa54vqrg" role="3cqZAp">
                             <node concept="2OqwBi" id="7Zvsa54vqwK" role="3clFbG">
                               <node concept="37vLTw" id="7Zvsa54vqrf" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7Zvsa54vqnF" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8170S" resolve="it" />
                               </node>
                               <node concept="2qgKlT" id="7Zvsa54vqDQ" role="2OqNvi">
                                 <ref role="37wK5l" node="7Zvsa54vnYI" resolve="allContents" />
@@ -770,9 +770,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="7Zvsa54vqnF" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8170S" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="7Zvsa54vqnG" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8170T" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1409,7 +1409,7 @@
                           <node concept="3clFbF" id="siw10FnrMW" role="3cqZAp">
                             <node concept="2OqwBi" id="siw10FnrMX" role="3clFbG">
                               <node concept="37vLTw" id="siw10FnrMY" role="2Oq$k0">
-                                <ref role="3cqZAo" node="siw10FnrN0" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8170U" resolve="it" />
                               </node>
                               <node concept="2qgKlT" id="siw10FnrMZ" role="2OqNvi">
                                 <ref role="37wK5l" node="siw10FnrMt" resolve="allSubstructure" />
@@ -1417,9 +1417,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="siw10FnrN0" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8170U" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="siw10FnrN1" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8170V" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1523,7 +1523,7 @@
                           <node concept="2OqwBi" id="JbnHRlSPoy" role="3clFbG">
                             <node concept="2OqwBi" id="JbnHRlSPo$" role="2Oq$k0">
                               <node concept="37vLTw" id="JbnHRlSPo_" role="2Oq$k0">
-                                <ref role="3cqZAo" node="JbnHRlSPoD" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8170W" resolve="it" />
                               </node>
                               <node concept="2qgKlT" id="3PhTX5bGUk6" role="2OqNvi">
                                 <ref role="37wK5l" node="77HYM7H$sfU" resolve="component" />
@@ -1535,9 +1535,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="JbnHRlSPoD" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8170W" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="JbnHRlSPoE" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8170X" role="1tU5fm" />
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@@ -1635,7 +1635,7 @@
                       <node concept="3clFbF" id="3PhTX5bHqSr" role="3cqZAp">
                         <node concept="2OqwBi" id="3PhTX5bHtf8" role="3clFbG">
                           <node concept="37vLTw" id="3PhTX5bHqSq" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3PhTX5bHmvG" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8170Y" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="3PhTX5bHxGb" role="2OqNvi">
                             <ref role="37wK5l" node="77HYM7H$sfU" resolve="component" />
@@ -1643,9 +1643,9 @@
                         </node>
                       </node>
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-                    <node concept="Rh6nW" id="3PhTX5bHmvG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8170Y" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3PhTX5bHmvH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8170Z" role="1tU5fm" />
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@@ -1749,7 +1749,7 @@
                     <node concept="2OqwBi" id="mIQkxfv1W9" role="3clFbG">
                       <node concept="2OqwBi" id="mIQkxfv1Wa" role="2Oq$k0">
                         <node concept="37vLTw" id="mIQkxfv1Wb" role="2Oq$k0">
-                          <ref role="3cqZAo" node="mIQkxfv1We" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX81710" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="mIQkxfv1Wc" role="2OqNvi">
                           <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -1761,9 +1761,9 @@
                     </node>
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-                <node concept="Rh6nW" id="mIQkxfv1We" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81710" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="mIQkxfv1Wf" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81711" role="1tU5fm" />
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@@ -1789,7 +1789,7 @@
                     <node concept="2OqwBi" id="mIQkxfv1WA" role="3clFbG">
                       <node concept="2OqwBi" id="mIQkxfv1WB" role="2Oq$k0">
                         <node concept="37vLTw" id="mIQkxfv1WC" role="2Oq$k0">
-                          <ref role="3cqZAo" node="mIQkxfv1WF" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX81712" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="mIQkxfv1WD" role="2OqNvi">
                           <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -1801,9 +1801,9 @@
                     </node>
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-                <node concept="Rh6nW" id="mIQkxfv1WF" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81712" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="mIQkxfv1WG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81713" role="1tU5fm" />
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@@ -1840,7 +1840,7 @@
                     <node concept="2OqwBi" id="mIQkxfCIxg" role="3clFbG">
                       <node concept="2OqwBi" id="mIQkxfCIxh" role="2Oq$k0">
                         <node concept="37vLTw" id="mIQkxfCIxi" role="2Oq$k0">
-                          <ref role="3cqZAo" node="mIQkxfCIxn" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX81714" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="mIQkxfCIxj" role="2OqNvi">
                           <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -1856,9 +1856,9 @@
                     </node>
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-                <node concept="Rh6nW" id="mIQkxfCIxn" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81714" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="mIQkxfCIxo" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81715" role="1tU5fm" />
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@@ -1902,7 +1902,7 @@
                       <node concept="2OqwBi" id="mIQkxf$FQp" role="3uHU7B">
                         <node concept="2OqwBi" id="mIQkxf$F2i" role="2Oq$k0">
                           <node concept="37vLTw" id="mIQkxf$EUh" role="2Oq$k0">
-                            <ref role="3cqZAo" node="mIQkxf$EOq" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX81716" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="mIQkxf$FgW" role="2OqNvi">
                             <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -1918,9 +1918,9 @@
                     </node>
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-                <node concept="Rh6nW" id="mIQkxf$EOq" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81716" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="mIQkxf$EOr" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81717" role="1tU5fm" />
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@@ -2485,6 +2485,9 @@
         <property role="TrG5h" value="concept" />
         <node concept="3THzug" id="4PGMP7y0vJU" role="1tU5fm" />
       </node>
+      <node concept="2AHcQZ" id="GJLa3qj1J_" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
       <node concept="P$JXv" id="GJLa3qj1Jy" role="lGtFl">
         <node concept="TZ5HI" id="GJLa3qj1Jz" role="3nqlJM">
           <node concept="TZ5HA" id="GJLa3qj1J$" role="3HnX3l">
@@ -2494,9 +2497,6 @@
           </node>
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-      <node concept="2AHcQZ" id="GJLa3qj1J_" role="2AJF6D">
-        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
-      </node>
     </node>
     <node concept="13i0hz" id="GJLa3qj27l" role="13h7CS">
       <property role="TrG5h" value="canBeInComponentContent" />
@@ -2559,7 +2559,7 @@
                     <node concept="3clFbF" id="3PhTX5bHIb_" role="3cqZAp">
                       <node concept="2OqwBi" id="3PhTX5bHIpq" role="3clFbG">
                         <node concept="37vLTw" id="3PhTX5bHIb$" role="2Oq$k0">
-                          <ref role="3cqZAo" node="3PhTX5bHHXo" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX81718" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="3PhTX5bHIUd" role="2OqNvi">
                           <ref role="37wK5l" node="77HYM7H$sfU" resolve="component" />
@@ -2567,9 +2567,9 @@
                       </node>
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-                  <node concept="Rh6nW" id="3PhTX5bHHXo" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX81718" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3PhTX5bHHXp" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX81719" role="1tU5fm" />
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@@ -2794,6 +2794,9 @@
         <property role="TrG5h" value="concept" />
         <node concept="3THzug" id="4PGMP7y0vZO" role="1tU5fm" />
       </node>
+      <node concept="2AHcQZ" id="GJLa3qiYW1" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
       <node concept="P$JXv" id="GJLa3qiYVY" role="lGtFl">
         <node concept="TZ5HI" id="GJLa3qiYVZ" role="3nqlJM">
           <node concept="TZ5HA" id="GJLa3qiYW0" role="3HnX3l">
@@ -2803,9 +2806,6 @@
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-      <node concept="2AHcQZ" id="GJLa3qiYW1" role="2AJF6D">
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     <node concept="13i0hz" id="GJLa3qj070" role="13h7CS">
       <property role="TrG5h" value="canBeInContent" />
@@ -3588,7 +3588,7 @@
                           <node concept="2OqwBi" id="76PiIP0J6Ak" role="33vP2m">
                             <node concept="2OqwBi" id="76PiIP0J6Al" role="2Oq$k0">
                               <node concept="37vLTw" id="76PiIP0J6Am" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3sKE3ts8K7$" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8171a" resolve="it" />
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                               <node concept="3TrEf2" id="76PiIP0J6An" role="2OqNvi">
                                 <ref role="3Tt5mk" to="w9y2:6LfBX8YlAdM" resolve="type" />
@@ -3606,7 +3606,7 @@
                             <node concept="2OqwBi" id="3sKE3ts8K7i" role="3uHU7B">
                               <node concept="2OqwBi" id="3sKE3ts8K7j" role="2Oq$k0">
                                 <node concept="37vLTw" id="3sKE3ts8K7k" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3sKE3ts8K7$" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171a" resolve="it" />
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                                 <node concept="3TrEf2" id="3sKE3ts8K7l" role="2OqNvi">
                                   <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -3646,9 +3646,9 @@
                         </node>
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-                    <node concept="Rh6nW" id="3sKE3ts8K7$" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171a" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
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@@ -4048,7 +4048,7 @@
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                       <node concept="2OqwBi" id="7Atos1y666E" role="33vP2m">
                         <node concept="37vLTw" id="7Atos1y666F" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7Atos1y666T" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8171c" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7Atos1y666G" role="2OqNvi">
                           <ref role="37wK5l" node="mIQkxg5ZT6" resolve="getPorts" />
@@ -4077,7 +4077,7 @@
                             <node concept="3clFbC" id="4VHfdEqkKQi" role="1eOMHV">
                               <node concept="2OqwBi" id="4VHfdEqkKQj" role="3uHU7B">
                                 <node concept="37vLTw" id="4VHfdEqkKQk" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7Atos1y666T" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171c" resolve="it" />
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                                 <node concept="2qgKlT" id="4VHfdEqkKQl" role="2OqNvi">
                                   <ref role="37wK5l" node="4VHfdEqkeO4" resolve="getInstanceForPort" />
@@ -4104,7 +4104,7 @@
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                               <node concept="2OqwBi" id="4VHfdEqk$mS" role="3uHU7B">
                                 <node concept="37vLTw" id="4VHfdEqkzO7" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7Atos1y666T" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171c" resolve="it" />
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                                 <node concept="2qgKlT" id="4VHfdEqk$Ya" role="2OqNvi">
                                   <ref role="37wK5l" node="4VHfdEqkeO4" resolve="getInstanceForPort" />
@@ -4141,9 +4141,9 @@
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-                <node concept="Rh6nW" id="7Atos1y666T" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8171c" role="1bW2Oz">
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-                  <node concept="2jxLKc" id="7Atos1y666U" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8171d" role="1tU5fm" />
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@@ -7517,7 +7517,7 @@
                     <node concept="2OqwBi" id="siw10GLzjO" role="3clFbG">
                       <node concept="2OqwBi" id="siw10GLzjP" role="2Oq$k0">
                         <node concept="37vLTw" id="siw10GLzjQ" role="2Oq$k0">
-                          <ref role="3cqZAo" node="siw10GLzjU" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8171e" resolve="it" />
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                         <node concept="3TrcHB" id="siw10GLzjR" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -7532,9 +7532,9 @@
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-                <node concept="Rh6nW" id="siw10GLzjU" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8171e" role="1bW2Oz">
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-                  <node concept="2jxLKc" id="siw10GLzjV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8171f" role="1tU5fm" />
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@@ -7718,14 +7718,14 @@
                       <node concept="3y3z36" id="1WCh2thaTlJ" role="3clFbG">
                         <node concept="13iPFW" id="1WCh2thaTlK" role="3uHU7w" />
                         <node concept="37vLTw" id="1WCh2thaTlL" role="3uHU7B">
-                          <ref role="3cqZAo" node="1WCh2thaTlM" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8171g" resolve="it" />
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-                  <node concept="Rh6nW" id="1WCh2thaTlM" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8171g" role="1bW2Oz">
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-                    <node concept="2jxLKc" id="1WCh2thaTlN" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8171h" role="1tU5fm" />
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@@ -7755,7 +7755,7 @@
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                       <node concept="2OqwBi" id="1WCh2thclCB" role="3clFbG">
                         <node concept="37vLTw" id="1WCh2thclCC" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1WCh2thclCE" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8171i" resolve="it" />
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                         <node concept="2qgKlT" id="1WCh2thclCD" role="2OqNvi">
                           <ref role="37wK5l" node="1WCh2thchui" resolve="sourcePortsAndInstance" />
@@ -7763,9 +7763,9 @@
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-                  <node concept="Rh6nW" id="1WCh2thclCE" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8171i" role="1bW2Oz">
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-                    <node concept="2jxLKc" id="1WCh2thclCF" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8171j" role="1tU5fm" />
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@@ -7813,7 +7813,7 @@
                         <node concept="3fqX7Q" id="7Nni8xTZFXQ" role="3uHU7w">
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                             <node concept="37vLTw" id="7Nni8xTZFXT" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1WCh2thaPui" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171k" resolve="it" />
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                             <node concept="2qgKlT" id="7Nni8xTZFXU" role="2OqNvi">
                               <ref role="37wK5l" node="mIQkxf$r$2" resolve="isOptional" />
@@ -7823,7 +7823,7 @@
                         <node concept="2OqwBi" id="7Nni8xTZ$vh" role="3uHU7B">
                           <node concept="2OqwBi" id="7Nni8xTZuZR" role="2Oq$k0">
                             <node concept="37vLTw" id="7Nni8xTZtHX" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1WCh2thaPui" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171k" resolve="it" />
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                             <node concept="3TrEf2" id="7Nni8xTZz4d" role="2OqNvi">
                               <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -7836,9 +7836,9 @@
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+                  <node concept="gl6BB" id="4z0AnX8171k" role="1bW2Oz">
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+                    <node concept="2jxLKc" id="4z0AnX8171l" role="1tU5fm" />
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@@ -7897,7 +7897,7 @@
                                         <property role="3cmrfH" value="0" />
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                                       <node concept="37vLTw" id="7Nni8xU4IGX" role="1LFl5Q">
-                                        <ref role="3cqZAo" node="1WCh2thcbsY" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8171m" resolve="it" />
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                                     <node concept="3TrEf2" id="7Nni8xU4OoL" role="2OqNvi">
@@ -7915,7 +7915,7 @@
                                         <property role="3cmrfH" value="0" />
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                                       <node concept="37vLTw" id="7Nni8xU4XM6" role="1LFl5Q">
-                                        <ref role="3cqZAo" node="1WCh2thcbsY" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8171m" resolve="it" />
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                                     <node concept="2qgKlT" id="7Nni8xU4XM7" role="2OqNvi">
@@ -7932,7 +7932,7 @@
                                     <property role="3cmrfH" value="0" />
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                                   <node concept="37vLTw" id="1WCh2thcbsU" role="1LFl5Q">
-                                    <ref role="3cqZAo" node="1WCh2thcbsY" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8171m" resolve="it" />
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                                 <node concept="3TrEf2" id="1WCh2thcJ7d" role="2OqNvi">
@@ -7949,9 +7949,9 @@
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-                      <node concept="Rh6nW" id="1WCh2thcbsY" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8171m" role="1bW2Oz">
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+                        <node concept="2jxLKc" id="4z0AnX8171n" role="1tU5fm" />
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@@ -7977,7 +7977,7 @@
                           <node concept="2OqwBi" id="1WCh2thdoAO" role="3clFbG">
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                               <node concept="37vLTw" id="1WCh2thdoAQ" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1WCh2thdoAU" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8171o" resolve="it" />
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@@ -7992,9 +7992,9 @@
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                       </node>
-                      <node concept="Rh6nW" id="1WCh2thdoAU" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8171o" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1WCh2thdoAV" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8171p" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -8306,15 +8306,15 @@
                   <node concept="3clFbF" id="1WCh2thcj7N" role="3cqZAp">
                     <node concept="1Ls8ON" id="1WCh2thcj7M" role="3clFbG">
                       <node concept="37vLTw" id="1WCh2thcjmy" role="1Lso8e">
-                        <ref role="3cqZAo" node="1WCh2thcj0N" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8171q" resolve="it" />
                       </node>
                       <node concept="13iPFW" id="1WCh2thcjv1" role="1Lso8e" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1WCh2thcj0N" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8171q" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1WCh2thcj0O" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8171r" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/constraints.mps
index d8164c3ca6..b3a56c1e86 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/constraints.mps
@@ -93,7 +93,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -147,6 +147,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -229,7 +230,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -268,7 +269,6 @@
         <child id="1235573175711" name="elementType" index="2HTBi0" />
         <child id="1235573187520" name="singletonValue" index="2HTEbv" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
       <concept id="1172254888721" name="jetbrains.mps.baseLanguage.collections.structure.ContainsOperation" flags="nn" index="3JPx81" />
@@ -329,14 +329,14 @@
                             </node>
                           </node>
                           <node concept="37vLTw" id="1F1F0IUZ_dk" role="3uHU7B">
-                            <ref role="3cqZAo" node="1F1F0IUZ_dl" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8171s" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZ_dl" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171s" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZ_dm" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8171t" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -743,7 +743,7 @@
                         <node concept="2OqwBi" id="1F1F0IUZ$YZ" role="3clFbG">
                           <node concept="2OqwBi" id="1F1F0IUZ$Z0" role="2Oq$k0">
                             <node concept="37vLTw" id="1F1F0IUZ$Z1" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1F1F0IUZ$Z4" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171u" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="1F1F0IUZ$Z2" role="2OqNvi">
                               <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -755,9 +755,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZ$Z4" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171u" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZ$Z5" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8171v" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -975,7 +975,7 @@
                         <node concept="2OqwBi" id="1F1F0IUZ$S7" role="3clFbG">
                           <node concept="2OqwBi" id="1F1F0IUZ$S8" role="2Oq$k0">
                             <node concept="37vLTw" id="1F1F0IUZ$S9" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1F1F0IUZ$Sc" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171w" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="1F1F0IUZ$Sa" role="2OqNvi">
                               <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -987,9 +987,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZ$Sc" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171w" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZ$Sd" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8171x" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1484,7 +1484,7 @@
                                 <node concept="3O6GUB" id="6ETHnAJXoFc" role="2OqNvi">
                                   <node concept="25Kdxt" id="6ETHnAJXp75" role="3QVz_e">
                                     <node concept="37vLTw" id="6ETHnAJXpz1" role="25KhWn">
-                                      <ref role="3cqZAo" node="6ETHnAJXe4t" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8171y" resolve="it" />
                                     </node>
                                   </node>
                                 </node>
@@ -1496,7 +1496,7 @@
                                 <node concept="2Zo12i" id="6ETHnAJXj69" role="2OqNvi">
                                   <node concept="25Kdxt" id="6ETHnAJXllx" role="2Zo12j">
                                     <node concept="37vLTw" id="6ETHnAJXlL3" role="25KhWn">
-                                      <ref role="3cqZAo" node="6ETHnAJXe4t" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8171y" resolve="it" />
                                     </node>
                                   </node>
                                 </node>
@@ -1504,9 +1504,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="6ETHnAJXe4t" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8171y" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="6ETHnAJXe4u" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8171z" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2574,15 +2574,15 @@
                                 <node concept="3clFbF" id="68KkV784WuT" role="3cqZAp">
                                   <node concept="2OqwBi" id="68KkV784WuU" role="3clFbG">
                                     <node concept="37vLTw" id="68KkV784WuV" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="68KkV784WuX" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8171$" resolve="it" />
                                     </node>
                                     <node concept="2yIwOk" id="68KkV784WuW" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="68KkV784WuX" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8171$" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="68KkV784WuY" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8171_" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -2621,7 +2621,7 @@
                                     <node concept="3O6GUB" id="6ETHnAJXONh" role="2OqNvi">
                                       <node concept="25Kdxt" id="6ETHnAJXPky" role="3QVz_e">
                                         <node concept="37vLTw" id="6ETHnAJXPPQ" role="25KhWn">
-                                          <ref role="3cqZAo" node="6ETHnAJXG2W" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8171A" resolve="it" />
                                         </node>
                                       </node>
                                     </node>
@@ -2633,7 +2633,7 @@
                                     <node concept="2Zo12i" id="6ETHnAJXKYh" role="2OqNvi">
                                       <node concept="25Kdxt" id="6ETHnAJXLv3" role="2Zo12j">
                                         <node concept="37vLTw" id="6ETHnAJXLZS" role="25KhWn">
-                                          <ref role="3cqZAo" node="6ETHnAJXG2W" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8171A" resolve="it" />
                                         </node>
                                       </node>
                                     </node>
@@ -2641,9 +2641,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6ETHnAJXG2W" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8171A" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="6ETHnAJXG2X" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8171B" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/editor.mps
index d8193a98a0..691ab5a037 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/editor.mps
@@ -154,7 +154,7 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -177,7 +177,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -211,7 +211,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY">
@@ -267,7 +267,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
@@ -386,7 +386,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -411,7 +411,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -440,6 +440,7 @@
       <concept id="8974276187400348181" name="jetbrains.mps.lang.access.structure.ExecuteLightweightCommandStatement" flags="nn" index="1QHqEK" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -488,7 +489,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G" />
@@ -565,7 +566,7 @@
       </concept>
       <concept id="3462102746004176270" name="de.itemis.mps.editor.diagram.structure.DeleteHandler" flags="ig" index="2fs66k" />
       <concept id="8377729485182319155" name="de.itemis.mps.editor.diagram.structure.PaletteSource_EntryQuery" flags="ig" index="gQ1qB" />
-      <concept id="9064581101900867235" name="de.itemis.mps.editor.diagram.structure.IEdgeEditor" flags="ng" index="ljJFv">
+      <concept id="9064581101900867235" name="de.itemis.mps.editor.diagram.structure.IEdgeEditor" flags="ngI" index="ljJFv">
         <child id="7188630757225274921" name="navigationTargets" index="1i7NIZ" />
         <child id="2044706694575458564" name="labelCell" index="3kqczz" />
         <child id="8587703283523592228" name="endpointFrom" index="1PN8q7" />
@@ -590,7 +591,7 @@
         <child id="2531824743736393627" name="height" index="2gOmqF" />
         <child id="500099795019625833" name="shape" index="G$OdO" />
       </concept>
-      <concept id="5383048119156619323" name="de.itemis.mps.editor.diagram.structure.IDiagramElementsProvider" flags="ng" index="HB_m5">
+      <concept id="5383048119156619323" name="de.itemis.mps.editor.diagram.structure.IDiagramElementsProvider" flags="ngI" index="HB_m5">
         <child id="3155126767688717334" name="contentList" index="aCds2" />
       </concept>
       <concept id="7890587897031726207" name="de.itemis.mps.editor.diagram.structure.Content_GenericElementQuery" flags="ng" index="2M4AIt">
@@ -741,7 +742,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -773,7 +774,6 @@
         <child id="1235573175711" name="elementType" index="2HTBi0" />
         <child id="1235573187520" name="singletonValue" index="2HTEbv" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -3789,7 +3789,7 @@
                         <node concept="3fqX7Q" id="siw10FErbQ" role="3clFbG">
                           <node concept="2OqwBi" id="siw10FErjc" role="3fr31v">
                             <node concept="37vLTw" id="siw10FEreR" role="2Oq$k0">
-                              <ref role="3cqZAo" node="siw10FEr7C" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171C" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="siw10FErsu" role="2OqNvi">
                               <node concept="chp4Y" id="siw10FErxF" role="cj9EA">
@@ -3800,9 +3800,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="siw10FEr7C" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171C" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="siw10FEr7D" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8171D" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -4342,7 +4342,7 @@
                               <node concept="37u81S" id="v8xu81RjRP" role="3uHU7w" />
                               <node concept="2OqwBi" id="v8xu81RjRQ" role="3uHU7B">
                                 <node concept="37vLTw" id="v8xu81RjRR" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="v8xu81RjRT" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171E" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="v8xu81RjRS" role="2OqNvi">
                                   <ref role="3Tt5mk" to="w9y2:cJpacq2_ov" resolve="outerPort" />
@@ -4351,9 +4351,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="v8xu81RjRT" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8171E" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="v8xu81RjRU" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8171F" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -4364,15 +4364,15 @@
                         <node concept="3clFbF" id="v8xu81RjRY" role="3cqZAp">
                           <node concept="2OqwBi" id="v8xu81RjRZ" role="3clFbG">
                             <node concept="37vLTw" id="v8xu81RjS0" role="2Oq$k0">
-                              <ref role="3cqZAo" node="v8xu81RjS2" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171G" resolve="it" />
                             </node>
                             <node concept="3YRAZt" id="v8xu81RjS1" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="v8xu81RjS2" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8171G" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="v8xu81RjS3" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8171H" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -4402,7 +4402,7 @@
                               <node concept="37u81S" id="v8xu81RjSi" role="3uHU7w" />
                               <node concept="2OqwBi" id="v8xu81RjSj" role="3uHU7B">
                                 <node concept="37vLTw" id="v8xu81RjSk" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="v8xu81RjSm" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171I" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="v8xu81RjSl" role="2OqNvi">
                                   <ref role="3Tt5mk" to="w9y2:cJpacq1tbb" resolve="outerPort" />
@@ -4411,9 +4411,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="v8xu81RjSm" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8171I" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="v8xu81RjSn" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8171J" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -4424,15 +4424,15 @@
                         <node concept="3clFbF" id="v8xu81RjSr" role="3cqZAp">
                           <node concept="2OqwBi" id="v8xu81RjSs" role="3clFbG">
                             <node concept="37vLTw" id="v8xu81RjSt" role="2Oq$k0">
-                              <ref role="3cqZAo" node="v8xu81RjSv" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8171K" resolve="it" />
                             </node>
                             <node concept="3YRAZt" id="v8xu81RjSu" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="v8xu81RjSv" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8171K" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="v8xu81RjSw" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8171L" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -4511,7 +4511,7 @@
                                   <node concept="3clFbF" id="7jwD7MQjiAB" role="3cqZAp">
                                     <node concept="2OqwBi" id="7jwD7MQjiQ_" role="3clFbG">
                                       <node concept="37vLTw" id="7jwD7MQjiA_" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="7jwD7MQjjq0" role="2OqNvi">
                                         <ref role="37wK5l" to="3eba:7jwD7MQjeSk" resolve="getComponentIconSmall" />
@@ -4529,7 +4529,7 @@
                                   <node concept="3clFbF" id="siw10GXGyh" role="3cqZAp">
                                     <node concept="2OqwBi" id="siw10GXGB6" role="3clFbG">
                                       <node concept="37vLTw" id="mIQkxfYbBN" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                       </node>
                                       <node concept="3TrcHB" id="siw10GXGMR" role="2OqNvi">
                                         <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -4589,7 +4589,7 @@
                                                             <ref role="cht4Q" to="w9y2:6LfBX8YlosD" resolve="ComponentInstance" />
                                                           </node>
                                                           <node concept="37vLTw" id="41i_FWyXP0P" role="1m5AlR">
-                                                            <ref role="3cqZAo" node="41i_FWyXP14" resolve="it" />
+                                                            <ref role="3cqZAo" node="4z0AnX8171M" resolve="it" />
                                                           </node>
                                                         </node>
                                                         <node concept="3TrEf2" id="41i_FWyXP0Q" role="2OqNvi">
@@ -4604,7 +4604,7 @@
                                                 </node>
                                                 <node concept="2OqwBi" id="41i_FWyXP0S" role="3clFbw">
                                                   <node concept="37vLTw" id="41i_FWyXP0T" role="2Oq$k0">
-                                                    <ref role="3cqZAo" node="41i_FWyXP14" resolve="it" />
+                                                    <ref role="3cqZAo" node="4z0AnX8171M" resolve="it" />
                                                   </node>
                                                   <node concept="1mIQ4w" id="41i_FWyXP0U" role="2OqNvi">
                                                     <node concept="chp4Y" id="41i_FWyXP0V" role="cj9EA">
@@ -4617,7 +4617,7 @@
                                                     <node concept="3cpWs6" id="41i_FWyXP0Y" role="3cqZAp">
                                                       <node concept="2OqwBi" id="41i_FWyXP0Z" role="3cqZAk">
                                                         <node concept="37vLTw" id="41i_FWyXP10" role="2Oq$k0">
-                                                          <ref role="3cqZAo" node="41i_FWyXP14" resolve="it" />
+                                                          <ref role="3cqZAo" node="4z0AnX8171M" resolve="it" />
                                                         </node>
                                                         <node concept="2Xjw5R" id="41i_FWyXP11" role="2OqNvi">
                                                           <node concept="1xMEDy" id="41i_FWyXP12" role="1xVPHs">
@@ -4632,9 +4632,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="41i_FWyXP14" role="1bW2Oz">
+                                            <node concept="gl6BB" id="4z0AnX8171M" role="1bW2Oz">
                                               <property role="TrG5h" value="it" />
-                                              <node concept="2jxLKc" id="41i_FWyXP15" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="4z0AnX8171N" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -4661,7 +4661,7 @@
                                                           <ref role="ehGHo" to="w9y2:6LfBX8Yi4o1" resolve="Component" />
                                                         </node>
                                                         <node concept="37vLTw" id="41i_FWyXP1k" role="2HTEbv">
-                                                          <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                                          <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                                         </node>
                                                       </node>
                                                     </node>
@@ -4674,7 +4674,7 @@
                                                     </node>
                                                     <node concept="2WmjW8" id="41i_FWyXP1o" role="2OqNvi">
                                                       <node concept="37vLTw" id="41i_FWyXP1p" role="25WWJ7">
-                                                        <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                                        <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                                       </node>
                                                     </node>
                                                   </node>
@@ -4686,7 +4686,7 @@
                                                     <node concept="3clFbF" id="41i_FWyXP1t" role="3cqZAp">
                                                       <node concept="2OqwBi" id="41i_FWyXP1u" role="3clFbG">
                                                         <node concept="37vLTw" id="41i_FWyXP1v" role="2Oq$k0">
-                                                          <ref role="3cqZAo" node="41i_FWyXP1x" resolve="it" />
+                                                          <ref role="3cqZAo" node="4z0AnX8171O" resolve="it" />
                                                         </node>
                                                         <node concept="3TrcHB" id="41i_FWyXP1w" role="2OqNvi">
                                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -4694,9 +4694,9 @@
                                                       </node>
                                                     </node>
                                                   </node>
-                                                  <node concept="Rh6nW" id="41i_FWyXP1x" role="1bW2Oz">
+                                                  <node concept="gl6BB" id="4z0AnX8171O" role="1bW2Oz">
                                                     <property role="TrG5h" value="it" />
-                                                    <node concept="2jxLKc" id="41i_FWyXP1y" role="1tU5fm" />
+                                                    <node concept="2jxLKc" id="4z0AnX8171P" role="1tU5fm" />
                                                   </node>
                                                 </node>
                                               </node>
@@ -4756,7 +4756,7 @@
                                       </node>
                                       <node concept="3JPx81" id="41i_FWyXP1L" role="2OqNvi">
                                         <node concept="37vLTw" id="41i_FWyXP1M" role="25WWJ7">
-                                          <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                         </node>
                                       </node>
                                     </node>
@@ -4778,7 +4778,7 @@
                                                 <ref role="2pIpSl" to="w9y2:6LfBX8YiQvJ" resolve="ref" />
                                                 <node concept="36biLy" id="mIQkxfT2kr" role="28nt2d">
                                                   <node concept="37vLTw" id="mIQkxfYbOH" role="36biLW">
-                                                    <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                                    <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                                   </node>
                                                 </node>
                                               </node>
@@ -4841,7 +4841,7 @@
                                     <node concept="2OqwBi" id="siw10GXMy1" role="3clFbG">
                                       <node concept="2OqwBi" id="siw10GXMbi" role="2Oq$k0">
                                         <node concept="37vLTw" id="mIQkxfYbTh" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="mIQkxg1UMc" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8171Q" resolve="it" />
                                         </node>
                                         <node concept="2Xjw5R" id="siw10GXMn3" role="2OqNvi">
                                           <node concept="1xMEDy" id="siw10GXMn5" role="1xVPHs">
@@ -4863,10 +4863,10 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="mIQkxg1UMc" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171Q" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
                       <property role="3TUv4t" value="true" />
-                      <node concept="2jxLKc" id="mIQkxg1UMd" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8171R" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -6866,7 +6866,7 @@
                                     <node concept="3clFbF" id="3VQCwTIkuho" role="3cqZAp">
                                       <node concept="2OqwBi" id="3VQCwTIkuhp" role="3clFbG">
                                         <node concept="37vLTw" id="3VQCwTIkuhq" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3VQCwTIkuio" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8171S" resolve="it" />
                                         </node>
                                         <node concept="2qgKlT" id="3VQCwTIkuhr" role="2OqNvi">
                                           <ref role="37wK5l" to="3eba:7jwD7MQjeSk" resolve="getComponentIconSmall" />
@@ -6884,7 +6884,7 @@
                                     <node concept="3clFbF" id="3VQCwTIkuhw" role="3cqZAp">
                                       <node concept="2OqwBi" id="3VQCwTIkuhx" role="3clFbG">
                                         <node concept="37vLTw" id="3VQCwTIkuhy" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3VQCwTIkuio" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8171S" resolve="it" />
                                         </node>
                                         <node concept="3TrcHB" id="3VQCwTIkuhz" role="2OqNvi">
                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -6935,7 +6935,7 @@
                                                   <ref role="2pIpSl" to="w9y2:6LfBX8YiQvJ" resolve="ref" />
                                                   <node concept="36biLy" id="3VQCwTIkuhS" role="28nt2d">
                                                     <node concept="37vLTw" id="3VQCwTIkuhT" role="36biLW">
-                                                      <ref role="3cqZAo" node="3VQCwTIkuio" resolve="it" />
+                                                      <ref role="3cqZAo" node="4z0AnX8171S" resolve="it" />
                                                     </node>
                                                   </node>
                                                 </node>
@@ -7018,7 +7018,7 @@
                                       <node concept="2OqwBi" id="3VQCwTIkui9" role="3clFbG">
                                         <node concept="2OqwBi" id="3VQCwTIkuia" role="2Oq$k0">
                                           <node concept="37vLTw" id="3VQCwTIkuib" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="3VQCwTIkuio" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8171S" resolve="it" />
                                           </node>
                                           <node concept="2Xjw5R" id="3VQCwTIkuic" role="2OqNvi">
                                             <node concept="1xMEDy" id="3VQCwTIkuid" role="1xVPHs">
@@ -7090,10 +7090,10 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3VQCwTIkuio" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8171S" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
                         <property role="3TUv4t" value="true" />
-                        <node concept="2jxLKc" id="3VQCwTIkuip" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8171T" role="1tU5fm" />
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                     </node>
                   </node>
@@ -7530,7 +7530,7 @@
                           <node concept="3fqX7Q" id="3VQCwTImx8f" role="3clFbG">
                             <node concept="2OqwBi" id="3VQCwTImx8g" role="3fr31v">
                               <node concept="37vLTw" id="3VQCwTImx8h" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3VQCwTImx8k" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8171U" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="3VQCwTImx8i" role="2OqNvi">
                                 <node concept="chp4Y" id="3VQCwTImx8j" role="cj9EA">
@@ -7541,9 +7541,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3VQCwTImx8k" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8171U" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3VQCwTImx8l" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8171V" role="1tU5fm" />
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                     </node>
                   </node>
@@ -8185,7 +8185,7 @@
                             <node concept="2OqwBi" id="siw10GZ8cC" role="3uHU7B">
                               <node concept="2OqwBi" id="siw10GZ7Yv" role="2Oq$k0">
                                 <node concept="37vLTw" id="siw10GZ7Ur" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="siw10GZ7SI" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171W" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="siw10GZ84B" role="2OqNvi">
                                   <ref role="3Tt5mk" to="w9y2:7Zvsa54vwqx" resolve="sourceInstance" />
@@ -8201,7 +8201,7 @@
                             <node concept="2OqwBi" id="siw10GZ8E7" role="3uHU7B">
                               <node concept="2OqwBi" id="siw10GZ8E8" role="2Oq$k0">
                                 <node concept="37vLTw" id="siw10GZ8E9" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="siw10GZ7SI" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8171W" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="siw10GZ8MX" role="2OqNvi">
                                   <ref role="3Tt5mk" to="w9y2:7Zvsa54vLP_" resolve="targetInstance" />
@@ -8216,9 +8216,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="siw10GZ7SI" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8171W" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="siw10GZ7SJ" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8171X" role="1tU5fm" />
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@@ -8229,15 +8229,15 @@
                     <node concept="3clFbF" id="siw10GZ98t" role="3cqZAp">
                       <node concept="2OqwBi" id="siw10GZ9dY" role="3clFbG">
                         <node concept="37vLTw" id="siw10GZ98s" role="2Oq$k0">
-                          <ref role="3cqZAo" node="siw10GZ93y" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8171Y" resolve="it" />
                         </node>
                         <node concept="3YRAZt" id="siw10GZ9ni" role="2OqNvi" />
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                     </node>
                   </node>
-                  <node concept="Rh6nW" id="siw10GZ93y" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8171Y" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="siw10GZ93z" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8171Z" role="1tU5fm" />
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                 </node>
               </node>
@@ -11766,7 +11766,7 @@
                           </node>
                           <node concept="2OqwBi" id="4dpHp7PqDR5" role="1m5AlR">
                             <node concept="37vLTw" id="4dpHp7PqDR6" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4dpHp7PqDR9" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX81720" resolve="it" />
                             </node>
                             <node concept="liA8E" id="4dpHp7PqDR7" role="2OqNvi">
                               <ref role="37wK5l" to="f4zo:~SubstituteAction.getOutputConcept()" resolve="getOutputConcept" />
@@ -11777,9 +11777,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4dpHp7PqDR9" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX81720" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4dpHp7PqDRa" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX81721" role="1tU5fm" />
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@@ -11790,7 +11790,7 @@
                   <node concept="3clFbF" id="4dpHp7PqDRe" role="3cqZAp">
                     <node concept="2OqwBi" id="4dpHp7PqDRf" role="3clFbG">
                       <node concept="37vLTw" id="4dpHp7PqDRg" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4dpHp7PqDRk" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX81722" resolve="it" />
                       </node>
                       <node concept="2Zo12i" id="4dpHp7PqDRh" role="2OqNvi">
                         <node concept="25Kdxt" id="4dpHp7PqDRi" role="2Zo12j">
@@ -11802,9 +11802,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4dpHp7PqDRk" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81722" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4dpHp7PqDRl" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81723" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/intentions.mps
index f781c51cf2..8c88bc25c8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/intentions.mps
@@ -108,7 +108,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -123,7 +123,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -146,6 +146,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -261,7 +262,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -285,7 +286,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1240325842691" name="jetbrains.mps.baseLanguage.collections.structure.AsSequenceOperation" flags="nn" index="39bAoz" />
       <concept id="1172254888721" name="jetbrains.mps.baseLanguage.collections.structure.ContainsOperation" flags="nn" index="3JPx81" />
@@ -523,7 +523,7 @@
                   <node concept="3clFbF" id="1WCh2thdbSL" role="3cqZAp">
                     <node concept="2OqwBi" id="1WCh2thdbZl" role="3clFbG">
                       <node concept="37vLTw" id="1WCh2thdbSK" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1WCh2thdbNy" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX81724" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="1WCh2thdceu" role="2OqNvi">
                         <ref role="37wK5l" to="3eba:1WCh2thaL0Y" resolve="autowire" />
@@ -531,9 +531,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1WCh2thdbNy" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81724" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1WCh2thdbNz" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81725" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/migration.mps
index eb1d5f0871..77bcc523cf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/migration.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="90746344-04fd-4286-97d5-b46ae6a81709" name="jetbrains.mps.lang.migration" version="2" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="9882f4ad-1955-46fe-8269-94189e5dbbf2" name="jetbrains.mps.lang.migration.util" version="0" />
   </languages>
@@ -65,7 +65,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
@@ -74,12 +74,13 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -155,7 +156,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -227,7 +228,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1225621920911" name="jetbrains.mps.baseLanguage.collections.structure.InsertElementOperation" flags="nn" index="1sK_Qi">
         <child id="1225621943565" name="element" index="1sKFgg" />
@@ -672,7 +672,7 @@
                           <node concept="2OqwBi" id="x8tpSA7Sjf" role="3clFbG">
                             <node concept="2OqwBi" id="x8tpSA7QIt" role="2Oq$k0">
                               <node concept="37vLTw" id="x8tpSA7Qqi" role="2Oq$k0">
-                                <ref role="3cqZAo" node="x8tpSA7QiH" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX81726" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="x8tpSA7R_2" role="2OqNvi">
                                 <ref role="3Tt5mk" to="w9y2:siw10Fjg04" resolve="substructure" />
@@ -682,9 +682,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="x8tpSA7QiH" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX81726" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="x8tpSA7QiI" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX81727" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -696,7 +696,7 @@
                         <node concept="2OqwBi" id="x8tpSA7WYM" role="3clFbG">
                           <node concept="2OqwBi" id="x8tpSA7Ubi" role="2Oq$k0">
                             <node concept="37vLTw" id="x8tpSA7TTS" role="2Oq$k0">
-                              <ref role="3cqZAo" node="x8tpSA7TNG" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX81728" resolve="it" />
                             </node>
                             <node concept="3Tsc0h" id="x8tpSA7V8H" role="2OqNvi">
                               <ref role="3TtcxE" to="w9y2:6LfBX8Yi4ps" resolve="contents" />
@@ -708,7 +708,7 @@
                             </node>
                             <node concept="2OqwBi" id="x8tpSA81fC" role="1sKFgg">
                               <node concept="37vLTw" id="x8tpSA80Nr" role="2Oq$k0">
-                                <ref role="3cqZAo" node="x8tpSA7TNG" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX81728" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="x8tpSA82g3" role="2OqNvi">
                                 <ref role="3Tt5mk" to="w9y2:siw10Fjg04" resolve="substructure" />
@@ -718,9 +718,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="x8tpSA7TNG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX81728" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="x8tpSA7TNH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX81729" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -748,7 +748,7 @@
                             <node concept="2OqwBi" id="x8tpSADkg1" role="2Oq$k0">
                               <node concept="2OqwBi" id="x8tpSADkg2" role="2Oq$k0">
                                 <node concept="37vLTw" id="x8tpSADQf5" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="x8tpSADKFB" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8172a" resolve="it" />
                                 </node>
                                 <node concept="3Tsc0h" id="x8tpSAF92p" role="2OqNvi">
                                   <ref role="3TtcxE" to="w9y2:6LfBX8Yi4ps" resolve="contents" />
@@ -764,7 +764,7 @@
                               <node concept="2OqwBi" id="x8tpSADkg8" role="576Qk">
                                 <node concept="2OqwBi" id="x8tpSADkg9" role="2Oq$k0">
                                   <node concept="37vLTw" id="x8tpSAIwIU" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="x8tpSADKFB" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8172a" resolve="it" />
                                   </node>
                                   <node concept="3Tsc0h" id="x8tpSALFUY" role="2OqNvi">
                                     <ref role="3TtcxE" to="w9y2:6LfBX8Yi4ps" resolve="contents" />
@@ -785,7 +785,7 @@
                         <node concept="2OqwBi" id="x8tpSAFdwr" role="3clFbG">
                           <node concept="2OqwBi" id="x8tpSAFaUg" role="2Oq$k0">
                             <node concept="37vLTw" id="x8tpSAFaeT" role="2Oq$k0">
-                              <ref role="3cqZAo" node="x8tpSADKFB" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8172a" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="x8tpSAFbR3" role="2OqNvi">
                               <ref role="37wK5l" to="3eba:x8tpSAdLM$" resolve="interfaceContent" />
@@ -799,9 +799,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="x8tpSADKFB" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8172a" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="x8tpSADKFC" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8172b" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -920,7 +920,7 @@
                             <node concept="2OqwBi" id="x8tpSAXCLi" role="2Oq$k0">
                               <node concept="2OqwBi" id="x8tpSAXCLj" role="2Oq$k0">
                                 <node concept="37vLTw" id="x8tpSAXCLk" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="x8tpSAXCLB" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8172g" resolve="it" />
                                 </node>
                                 <node concept="3Tsc0h" id="x8tpSAY5DW" role="2OqNvi">
                                   <ref role="3TtcxE" to="w9y2:x8tpS_RkBA" resolve="content" />
@@ -939,7 +939,7 @@
                                     <node concept="2OqwBi" id="x8tpSAYe5Z" role="3clFbG">
                                       <node concept="2OqwBi" id="x8tpSAYaBF" role="2Oq$k0">
                                         <node concept="37vLTw" id="x8tpSAY8UF" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="x8tpSAY7G$" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8172c" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="x8tpSAYby5" role="2OqNvi">
                                           <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -951,9 +951,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="x8tpSAY7G$" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8172c" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="x8tpSAY7G_" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8172d" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -964,7 +964,7 @@
                         <node concept="2OqwBi" id="x8tpSAYkj4" role="3clFbG">
                           <node concept="2OqwBi" id="x8tpSAYhHh" role="2Oq$k0">
                             <node concept="37vLTw" id="x8tpSAYgVI" role="2Oq$k0">
-                              <ref role="3cqZAo" node="x8tpSAXCLB" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8172g" resolve="it" />
                             </node>
                             <node concept="3Tsc0h" id="x8tpSAYiNg" role="2OqNvi">
                               <ref role="3TtcxE" to="w9y2:x8tpSAXuOU" resolve="governingPorts" />
@@ -989,7 +989,7 @@
                             <node concept="2OqwBi" id="x8tpSAY$Il" role="2Oq$k0">
                               <node concept="2OqwBi" id="x8tpSAY$Im" role="2Oq$k0">
                                 <node concept="37vLTw" id="x8tpSAY$In" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="x8tpSAXCLB" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8172g" resolve="it" />
                                 </node>
                                 <node concept="3Tsc0h" id="x8tpSAY$Io" role="2OqNvi">
                                   <ref role="3TtcxE" to="w9y2:x8tpS_RkBA" resolve="content" />
@@ -1009,7 +1009,7 @@
                                       <node concept="2OqwBi" id="x8tpSAYPr6" role="3fr31v">
                                         <node concept="2OqwBi" id="x8tpSAYPr7" role="2Oq$k0">
                                           <node concept="37vLTw" id="x8tpSAYPr8" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="x8tpSAY$I$" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8172e" resolve="it" />
                                           </node>
                                           <node concept="3TrEf2" id="x8tpSAYPr9" role="2OqNvi">
                                             <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -1022,9 +1022,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="x8tpSAY$I$" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8172e" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="x8tpSAY$I_" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8172f" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -1035,7 +1035,7 @@
                         <node concept="2OqwBi" id="x8tpSAY$Ia" role="3clFbG">
                           <node concept="2OqwBi" id="x8tpSAY$Ib" role="2Oq$k0">
                             <node concept="37vLTw" id="x8tpSAY$Ic" role="2Oq$k0">
-                              <ref role="3cqZAo" node="x8tpSAXCLB" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8172g" resolve="it" />
                             </node>
                             <node concept="3Tsc0h" id="x8tpSAYUgh" role="2OqNvi">
                               <ref role="3TtcxE" to="w9y2:x8tpSAXvhR" resolve="subordinatePorts" />
@@ -1049,9 +1049,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="x8tpSAXCLB" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8172g" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="x8tpSAXCLC" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8172h" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/plugin.mps
index 651047d399..f321b9ddb6 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:c3f8c118-0b96-42c8-81d3-9acdb23cdc68(org.iets3.components.core.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/structure.mps
index 872af417a3..384c7be2bf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/structure.mps
@@ -75,7 +75,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/typesystem.mps
index f4c3056b50..b1f5fde50c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/models/typesystem.mps
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:769eaa92-d4cb-4fa9-87e4-269f7f35a1eb(org.iets3.components.core.typesystem)">
   <persistence version="9" />
-  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <devkit ref="00000000-0000-4000-0000-1de82b3a4936(jetbrains.mps.devkit.aspect.typesystem)" />
@@ -103,7 +102,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -118,7 +117,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -128,6 +127,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -280,7 +280,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -312,7 +312,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -709,7 +708,7 @@
                                         </node>
                                         <node concept="2OqwBi" id="cJpacq2x6m" role="3uHU7B">
                                           <node concept="37vLTw" id="cJpacq2x6n" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="cJpacq2x6w" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8172i" resolve="it" />
                                           </node>
                                           <node concept="3TrEf2" id="3NBP8_OfLCu" role="2OqNvi">
                                             <ref role="3Tt5mk" to="w9y2:cJpacq1tk2" resolve="sourcePort" />
@@ -720,7 +719,7 @@
                                         <node concept="2OqwBi" id="cJpacq2x6q" role="3uHU7B">
                                           <node concept="2OqwBi" id="cJpacq2x6r" role="2Oq$k0">
                                             <node concept="37vLTw" id="cJpacq2x6s" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="cJpacq2x6w" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8172i" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="3NBP8_OfRKX" role="2OqNvi">
                                               <ref role="3Tt5mk" to="w9y2:7Zvsa54vwqx" resolve="sourceInstance" />
@@ -737,9 +736,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="cJpacq2x6w" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8172i" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="cJpacq2x6x" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8172j" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -763,7 +762,7 @@
                                         </node>
                                         <node concept="2OqwBi" id="cJpacq2xz_" role="3uHU7B">
                                           <node concept="37vLTw" id="cJpacq2xzA" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="cJpacq2xzJ" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8172k" resolve="it" />
                                           </node>
                                           <node concept="3TrEf2" id="3NBP8_OfUsv" role="2OqNvi">
                                             <ref role="3Tt5mk" to="w9y2:cJpacq1V$o" resolve="targetPort" />
@@ -774,7 +773,7 @@
                                         <node concept="2OqwBi" id="cJpacq2xzD" role="3uHU7B">
                                           <node concept="2OqwBi" id="cJpacq2xzE" role="2Oq$k0">
                                             <node concept="37vLTw" id="cJpacq2xzF" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="cJpacq2xzJ" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8172k" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="3NBP8_OfP0v" role="2OqNvi">
                                               <ref role="3Tt5mk" to="w9y2:cJpacq1V$l" resolve="targetInstance" />
@@ -791,9 +790,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="cJpacq2xzJ" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8172k" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="cJpacq2xzK" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8172l" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -814,7 +813,7 @@
                           <node concept="3fqX7Q" id="cJpacq0XpF" role="3clFbG">
                             <node concept="2OqwBi" id="cJpacq0XE5" role="3fr31v">
                               <node concept="37vLTw" id="cJpacq0XpG" role="2Oq$k0">
-                                <ref role="3cqZAo" node="cJpacq0X1s" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8172m" resolve="it" />
                               </node>
                               <node concept="2qgKlT" id="mIQkxf$u7r" role="2OqNvi">
                                 <ref role="37wK5l" to="3eba:mIQkxf$r$2" resolve="isOptional" />
@@ -823,9 +822,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="cJpacq0X1s" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8172m" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="cJpacq0X1t" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8172n" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1656,7 +1655,7 @@
                           </node>
                           <node concept="2OqwBi" id="3NBP8_O40HZ" role="3uHU7B">
                             <node concept="37vLTw" id="3NBP8_O40I0" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3NBP8_O40I2" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8172o" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="3NBP8_O40I1" role="2OqNvi">
                               <ref role="3Tt5mk" to="w9y2:4UgzZxsF_xI" resolve="param" />
@@ -1665,9 +1664,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3NBP8_O40I2" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8172o" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3NBP8_O40I3" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8172p" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1721,7 +1720,7 @@
                             </node>
                             <node concept="2OqwBi" id="3NBP8_O42_I" role="3uHU7B">
                               <node concept="37vLTw" id="3NBP8_O42_J" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3NBP8_O42_L" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8172q" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="3NBP8_O42_K" role="2OqNvi">
                                 <ref role="3Tt5mk" to="w9y2:4UgzZxsF_xI" resolve="param" />
@@ -1730,9 +1729,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3NBP8_O42_L" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8172q" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3NBP8_O42_M" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8172r" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1774,7 +1773,7 @@
                   <node concept="3fqX7Q" id="3NBP8_O3PpG" role="3clFbG">
                     <node concept="2OqwBi" id="3NBP8_O3PpI" role="3fr31v">
                       <node concept="37vLTw" id="3NBP8_O3PpJ" role="2Oq$k0">
-                        <ref role="3cqZAo" node="3NBP8_O3O_W" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8172s" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="3NBP8_O3PpK" role="2OqNvi">
                         <ref role="37wK5l" to="3eba:3NBP8_O3NQF" resolve="isOptional" />
@@ -1783,9 +1782,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="3NBP8_O3O_W" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX8172s" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="3NBP8_O3O_X" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX8172t" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -1921,7 +1920,7 @@
                   <node concept="2OqwBi" id="x8tpSAZ4qk" role="3clFbw">
                     <node concept="2OqwBi" id="x8tpSAZ3yU" role="2Oq$k0">
                       <node concept="37vLTw" id="_igokwK7M4" role="2Oq$k0">
-                        <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                        <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                       </node>
                       <node concept="3TrEf2" id="x8tpSAZ40x" role="2OqNvi">
                         <ref role="3Tt5mk" to="w9y2:mIQkxfpv7_" resolve="category" />
@@ -1936,7 +1935,7 @@
                       <node concept="3clFbC" id="_igokwKkNE" role="2MkoU_">
                         <node concept="2OqwBi" id="_igokwKjZd" role="3uHU7B">
                           <node concept="37vLTw" id="_igokwKj_P" role="2Oq$k0">
-                            <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                            <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                           </node>
                           <node concept="2NL2c5" id="4llm6dFyM69" role="2OqNvi" />
                         </node>
@@ -1949,7 +1948,7 @@
                         <property role="Xl_RC" value="port category is wrong side (governing)" />
                       </node>
                       <node concept="37vLTw" id="_igokwKlmV" role="1urrMF">
-                        <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                        <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                       </node>
                       <node concept="3Cnw8n" id="3km$jnhdo8n" role="1urrFz">
                         <property role="ARO6o" value="true" />
@@ -1957,7 +1956,7 @@
                         <node concept="3CnSsL" id="3km$jnhdUj$" role="3Coj4f">
                           <ref role="QkamJ" node="6dLmQVBsrXD" resolve="p" />
                           <node concept="37vLTw" id="3km$jnhdUuB" role="3CoRuB">
-                            <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                            <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                           </node>
                         </node>
                       </node>
@@ -1969,7 +1968,7 @@
                         <node concept="3clFbC" id="_igokwKvp$" role="2MkoU_">
                           <node concept="2OqwBi" id="_igokwKsKJ" role="3uHU7B">
                             <node concept="37vLTw" id="_igokwKsvG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                              <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                             </node>
                             <node concept="2NL2c5" id="4llm6dFyMgv" role="2OqNvi" />
                           </node>
@@ -1982,7 +1981,7 @@
                           <property role="Xl_RC" value="port category is wrong side (subordinate)" />
                         </node>
                         <node concept="37vLTw" id="_igokwKtLF" role="1urrMF">
-                          <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                          <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                         </node>
                         <node concept="3Cnw8n" id="3km$jnhdojg" role="1urrFz">
                           <property role="ARO6o" value="true" />
@@ -1990,7 +1989,7 @@
                           <node concept="3CnSsL" id="3km$jnhdUDA" role="3Coj4f">
                             <ref role="QkamJ" node="6dLmQVBsrXD" resolve="p" />
                             <node concept="37vLTw" id="3km$jnhdUOJ" role="3CoRuB">
-                              <ref role="3cqZAo" node="_igokwK5R8" resolve="port" />
+                              <ref role="3cqZAo" node="4z0AnX8172u" resolve="port" />
                             </node>
                           </node>
                         </node>
@@ -1999,9 +1998,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="_igokwK5R8" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX8172u" role="1bW2Oz">
                 <property role="TrG5h" value="port" />
-                <node concept="2jxLKc" id="_igokwK5R9" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX8172v" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -2056,7 +2055,7 @@
                         </node>
                         <node concept="2OqwBi" id="6$fTUGAIu$3" role="33vP2m">
                           <node concept="37vLTw" id="6$fTUGAIu$4" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6$fTUGAIe5E" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8172w" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="6$fTUGAIu$5" role="2OqNvi">
                             <ref role="3Tt5mk" to="w9y2:6LfBX8YiQvJ" resolve="ref" />
@@ -2084,7 +2083,7 @@
                       <node concept="3clFbS" id="6$fTUGAIeoU" role="3clFbx">
                         <node concept="2MkqsV" id="6$fTUGAImGI" role="3cqZAp">
                           <node concept="37vLTw" id="6$fTUGAIOCh" role="1urrMF">
-                            <ref role="3cqZAo" node="6$fTUGAIe5E" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8172w" resolve="it" />
                           </node>
                           <node concept="2YIFZM" id="3eH6BL3Wk67" role="2MkJ7o">
                             <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
@@ -2157,9 +2156,9 @@
                     </node>
                     <node concept="3clFbH" id="6$fTUGAIebi" role="3cqZAp" />
                   </node>
-                  <node concept="Rh6nW" id="6$fTUGAIe5E" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8172w" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6$fTUGAIe5F" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8172x" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2245,7 +2244,7 @@
                           <node concept="2qgKlT" id="PFqDnRTYtI" role="2OqNvi">
                             <ref role="37wK5l" to="3eba:7Atos1y63VI" resolve="getConnectionMulitplicityError" />
                             <node concept="37vLTw" id="4VHfdEqk8tI" role="37wK5m">
-                              <ref role="3cqZAo" node="PFqDnRUiiL" resolve="ci" />
+                              <ref role="3cqZAo" node="4z0AnX8172y" resolve="ci" />
                             </node>
                             <node concept="37vLTw" id="PFqDnRUaXo" role="37wK5m">
                               <ref role="3cqZAo" node="PFqDnRU9qz" resolve="allConnectors" />
@@ -2258,7 +2257,7 @@
                       <node concept="3clFbS" id="PFqDnRTYtL" role="3clFbx">
                         <node concept="2MkqsV" id="PFqDnRTYtM" role="3cqZAp">
                           <node concept="37vLTw" id="PFqDnRUkwg" role="1urrMF">
-                            <ref role="3cqZAo" node="PFqDnRUiiL" resolve="ci" />
+                            <ref role="3cqZAo" node="4z0AnX8172y" resolve="ci" />
                           </node>
                           <node concept="2YIFZM" id="3eH6BL3Wp_b" role="2MkJ7o">
                             <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
@@ -2292,7 +2291,7 @@
                     <node concept="2OqwBi" id="PFqDnRTYu1" role="2Oq$k0">
                       <node concept="2OqwBi" id="PFqDnRTYu3" role="2Oq$k0">
                         <node concept="37vLTw" id="PFqDnRUkwe" role="2Oq$k0">
-                          <ref role="3cqZAo" node="PFqDnRUiiL" resolve="ci" />
+                          <ref role="3cqZAo" node="4z0AnX8172y" resolve="ci" />
                         </node>
                         <node concept="2qgKlT" id="3PhTX5bIm8i" role="2OqNvi">
                           <ref role="37wK5l" to="3eba:77HYM7H$sfU" resolve="component" />
@@ -2308,9 +2307,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="PFqDnRUiiL" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX8172y" role="1bW2Oz">
                 <property role="TrG5h" value="ci" />
-                <node concept="2jxLKc" id="PFqDnRUiiM" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX8172z" role="1tU5fm" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/org.iets3.components.core.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/org.iets3.components.core.mpl
index c489639bb0..432b9a4c57 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.core/org.iets3.components.core.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.core/org.iets3.components.core.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -45,7 +44,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -70,7 +69,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
@@ -132,7 +131,6 @@
     <module reference="7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)" version="1" />
     <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
-    <module reference="8fe4c62a-2020-4ff4-8eda-f322a55bdc9f(jetbrains.mps.refactoring.runtime)" version="0" />
     <module reference="db8bd035-3f51-41d8-8fed-954c202d18be(org.iets3.analysis.base)" version="1" />
     <module reference="f0fd486f-8577-43e9-b671-3d118449c6e7(org.iets3.components.core)" version="12" />
     <module reference="583939be-ded0-4735-a055-a74f8477fc34(org.iets3.core.attributes)" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/models/org/iets3/components/plugin/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/models/org/iets3/components/plugin/plugin.mps
index ba44649ec5..487f12a971 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/models/org/iets3/components/plugin/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/models/org/iets3/components/plugin/plugin.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="1f1b4a81-113d-4b88-9b67-2bae3e4f8128" name="com.mbeddr.mpsutil.projectview" version="1" />
     <use id="1fc20ffe-f35b-4791-a0b7-d706bad5c49a" name="com.mbeddr.mpsutil.refactoring" version="0" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
@@ -68,19 +68,20 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
         <child id="5375687026011219971" name="member" index="jymVt" unordered="true" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -136,7 +137,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -158,7 +159,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -193,7 +193,7 @@
                   <node concept="3clFbF" id="5Jew25TJ3VJ" role="3cqZAp">
                     <node concept="2OqwBi" id="5Jew25TJ42F" role="3clFbG">
                       <node concept="37vLTw" id="5Jew25TJ3VI" role="2Oq$k0">
-                        <ref role="3cqZAo" node="5Jew25TJ3Qg" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mc" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="5Jew25TJ4ho" role="2OqNvi">
                         <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -201,9 +201,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5Jew25TJ3Qg" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mc" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5Jew25TJ3Qh" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817md" role="1tU5fm" />
                 </node>
               </node>
               <node concept="1nlBCl" id="5Jew25TJ3Qi" role="2S7zOq">
@@ -260,7 +260,7 @@
                   <node concept="3fqX7Q" id="1MpR5BkUpof" role="3clFbG">
                     <node concept="2OqwBi" id="1MpR5BkUpsg" role="3fr31v">
                       <node concept="37vLTw" id="1MpR5BkUpom" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1MpR5BkUpiM" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817me" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="1MpR5BkUpC3" role="2OqNvi">
                         <node concept="chp4Y" id="1MpR5BkUpGA" role="cj9EA">
@@ -271,9 +271,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="1MpR5BkUpiM" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817me" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="1MpR5BkUpiN" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817mf" role="1tU5fm" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/org.iets3.components.plugin.msd b/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/org.iets3.components.plugin.msd
index 5dc549a814..715a320b77 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/org.iets3.components.plugin.msd
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.plugin/org.iets3.components.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.components.plugin" uuid="7e09f312-66d1-4b1d-91cb-92e8984cbbe2" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.components.plugin" uuid="7e09f312-66d1-4b1d-91cb-92e8984cbbe2" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)</dependency>
     <dependency reexport="false">742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)</dependency>
@@ -24,10 +23,10 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/behavior.mps
index a190aa8c1d..e4099b9700 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/behavior.mps
@@ -51,11 +51,11 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -77,7 +77,7 @@
       <concept id="1172420572800" name="jetbrains.mps.lang.smodel.structure.ConceptNodeType" flags="in" index="3THzug" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/constraints.mps
index 524f4c240c..20852c2962 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/constraints.mps
@@ -29,7 +29,7 @@
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
       <concept id="1068581242875" name="jetbrains.mps.baseLanguage.structure.PlusExpression" flags="nn" index="3cpWs3" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/editor.mps
index 7606e5d012..fbc92f23a4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/editor.mps
@@ -44,7 +44,7 @@
       <concept id="1073389577006" name="jetbrains.mps.lang.editor.structure.CellModel_Constant" flags="sn" stub="3610246225209162225" index="3F0ifn">
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
@@ -75,7 +75,7 @@
       <concept id="1068580320020" name="jetbrains.mps.baseLanguage.structure.IntegerConstant" flags="nn" index="3cmrfG">
         <property id="1068580320021" name="value" index="3cmrfH" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/structure.mps
index 703a4276f5..1bb401c629 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/models/structure.mps
@@ -41,7 +41,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/org.iets3.components.req.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/org.iets3.components.req.mpl
index d237bc6454..20bbf9c262 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.components.req/org.iets3.components.req.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.components.req/org.iets3.components.req.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">f0fd486f-8577-43e9-b671-3d118449c6e7(org.iets3.components.core)</dependency>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
@@ -20,7 +19,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/behavior.mps
index fed5b39448..08309fbf4b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/behavior.mps
@@ -86,7 +86,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -94,12 +94,13 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -150,7 +151,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -165,7 +166,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1240687580870" name="jetbrains.mps.baseLanguage.collections.structure.JoinOperation" flags="nn" index="3uJxvA">
         <child id="1240687658305" name="delimiter" index="3uJOhx" />
@@ -210,7 +210,7 @@
                           <node concept="2OqwBi" id="1HLccB8EnHF" role="2Oq$k0">
                             <node concept="2JrnkZ" id="1HLccB8Ent9" role="2Oq$k0">
                               <node concept="37vLTw" id="1HLccB8EmE8" role="2JrQYb">
-                                <ref role="3cqZAo" node="1HLccB8EmgA" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8172_" resolve="it" />
                               </node>
                             </node>
                             <node concept="liA8E" id="1HLccB8EnZd" role="2OqNvi">
@@ -223,9 +223,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1HLccB8EmgA" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8172_" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1HLccB8EmgB" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8172A" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -430,7 +430,7 @@
                             <node concept="36biLy" id="1HLccB8vwoI" role="28nt2d">
                               <node concept="2OqwBi" id="1HLccB8vwoJ" role="36biLW">
                                 <node concept="37vLTw" id="1HLccB8vwoK" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1HLccB8vwpg" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8172D" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="1HLccB8vwoL" role="2OqNvi">
                                   <ref role="37wK5l" to="fp62:7qN5a9Pfhlm" resolve="getTraceSource" />
@@ -452,7 +452,7 @@
                     <node concept="2OqwBi" id="1HLccB8vwoP" role="3clFbG">
                       <node concept="2OqwBi" id="1HLccB8vwoQ" role="2Oq$k0">
                         <node concept="37vLTw" id="1HLccB8vwoR" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1HLccB8vwpg" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8172D" resolve="it" />
                         </node>
                         <node concept="3Tsc0h" id="1HLccB8vwoS" role="2OqNvi">
                           <ref role="3TtcxE" to="ci3w:1PzuxQOT_1a" resolve="traceTarget" />
@@ -480,7 +480,7 @@
                                         <node concept="36biLy" id="1HLccB8vwp5" role="28nt2d">
                                           <node concept="2OqwBi" id="1HLccB8vwp6" role="36biLW">
                                             <node concept="37vLTw" id="1HLccB8vwp7" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="1HLccB8vwp9" resolve="target" />
+                                              <ref role="3cqZAo" node="4z0AnX8172B" resolve="target" />
                                             </node>
                                             <node concept="3TrEf2" id="1HLccB8vwp8" role="2OqNvi">
                                               <ref role="3Tt5mk" to="ci3w:1PzuxQOTLHd" resolve="traceTarget" />
@@ -494,9 +494,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1HLccB8vwp9" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8172B" role="1bW2Oz">
                             <property role="TrG5h" value="target" />
-                            <node concept="2jxLKc" id="1HLccB8vwpa" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8172C" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -515,9 +515,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1HLccB8vwpg" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8172D" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1HLccB8vwph" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8172E" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -636,7 +636,7 @@
                               <ref role="2pIpSl" to="330h:378sigX3YpV" resolve="element" />
                               <node concept="36biLy" id="6_Ift$_DuFb" role="28nt2d">
                                 <node concept="37vLTw" id="6_Ift$_DuQl" role="36biLW">
-                                  <ref role="3cqZAo" node="6_Ift$_DmzS" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8172F" resolve="it" />
                                 </node>
                               </node>
                             </node>
@@ -646,9 +646,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6_Ift$_DmzS" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8172F" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6_Ift$_DmzT" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8172G" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/editor.mps
index 8a057dbecd..fad1835aaf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/editor.mps
@@ -49,7 +49,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -94,7 +94,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -128,7 +128,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/plugin.mps
index 0a42db2460..1c0a72584e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
   <imports />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/structure.mps
index 0a2229d941..48bcb91f14 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/models/structure.mps
@@ -34,7 +34,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/org.iets3.core.assessment.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/org.iets3.core.assessment.mpl
index df8c02c506..4b677abb8e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/org.iets3.core.assessment.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.assessment/org.iets3.core.assessment.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">7d21cc4b-4c24-41db-9868-8af4a7f3eba9(org.iets3.core.trace)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -49,7 +48,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/actions.mps
index 37205a8cd1..44203925f9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/actions.mps
@@ -27,7 +27,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -48,7 +48,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/behavior.mps
index e07d65bb37..4608f15c8f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/behavior.mps
@@ -5,7 +5,7 @@
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
@@ -20,6 +20,9 @@
     <import index="lmd" ref="r:a6074908-e483-4c8e-80b5-5dbf8b24df4c(org.iets3.core.expr.path.structure)" />
     <import index="1zby" ref="r:e876148b-672e-4264-9fee-d6d24a2d1223(org.iets3.core.expr.path.behavior)" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
+    <import index="pdwk" ref="8e98f4e2-decf-4e97-bf80-9109e8b759ee/java:jetbrains.mps.core.aspects.constraints.rules.kinds(jetbrains.mps.lang.constraints.rules.runtime/)" />
+    <import index="ykol" ref="8e98f4e2-decf-4e97-bf80-9109e8b759ee/java:jetbrains.mps.smodel.constraints(jetbrains.mps.lang.constraints.rules.runtime/)" />
+    <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" implicit="true" />
   </imports>
   <registry>
     <language id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior">
@@ -67,6 +70,9 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
+        <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
+      </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -115,10 +121,11 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
+      <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk" />
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
@@ -127,7 +134,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5497648299878491908" name="jetbrains.mps.baseLanguage.structure.BaseVariableReference" flags="nn" index="1M0zk4">
@@ -138,6 +145,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -222,7 +230,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -243,7 +251,6 @@
         <child id="1209727996925" name="ascending" index="2Dq5b$" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1178286324487" name="jetbrains.mps.baseLanguage.collections.structure.SortDirection" flags="nn" index="1nlBCl" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1165595910856" name="jetbrains.mps.baseLanguage.collections.structure.GetLastOperation" flags="nn" index="1yVyf7" />
@@ -453,7 +460,7 @@
                   <node concept="3clFbF" id="1HqphBIBEzC" role="3cqZAp">
                     <node concept="2OqwBi" id="1HqphBIBEB_" role="3clFbG">
                       <node concept="37vLTw" id="1HqphBIBEzB" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1HqphBIBExm" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8172H" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="1HqphBIQF4H" role="2OqNvi">
                         <ref role="37wK5l" node="1HqphBICm56" resolve="getEffectiveValue" />
@@ -461,9 +468,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1HqphBIBExm" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8172H" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1HqphBIBExn" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8172I" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -511,24 +518,24 @@
                     <node concept="3clFbF" id="1HqphBIBG8q" role="3cqZAp">
                       <node concept="2OqwBi" id="1HqphBIBGcM" role="3clFbG">
                         <node concept="37vLTw" id="1HqphBIBG8p" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1HqphBIBG5i" resolve="a" />
+                          <ref role="3cqZAo" node="4z0AnX8172J" resolve="a" />
                         </node>
                         <node concept="2qgKlT" id="1HqphBIBGhC" role="2OqNvi">
                           <ref role="37wK5l" node="1HqphBI_m8C" resolve="compareTo" />
                           <node concept="37vLTw" id="1HqphBIBGll" role="37wK5m">
-                            <ref role="3cqZAo" node="1HqphBIBG5k" resolve="b" />
+                            <ref role="3cqZAo" node="4z0AnX8172L" resolve="b" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1HqphBIBG5i" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8172J" role="1bW2Oz">
                     <property role="TrG5h" value="a" />
-                    <node concept="2jxLKc" id="1HqphBIBG5j" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8172K" role="1tU5fm" />
                   </node>
-                  <node concept="Rh6nW" id="1HqphBIBG5k" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8172L" role="1bW2Oz">
                     <property role="TrG5h" value="b" />
-                    <node concept="2jxLKc" id="1HqphBIBG5l" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8172M" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="1nlBCl" id="1HqphBIBG5m" role="2Dq5b$">
@@ -562,24 +569,24 @@
                     <node concept="3clFbF" id="1HqphBIBGM3" role="3cqZAp">
                       <node concept="2OqwBi" id="1HqphBIBGM4" role="3clFbG">
                         <node concept="37vLTw" id="1HqphBIBGM5" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1HqphBIBGM8" resolve="a" />
+                          <ref role="3cqZAo" node="4z0AnX8172N" resolve="a" />
                         </node>
                         <node concept="2qgKlT" id="1HqphBIBGM6" role="2OqNvi">
                           <ref role="37wK5l" node="1HqphBI_m8C" resolve="compareTo" />
                           <node concept="37vLTw" id="1HqphBIBGM7" role="37wK5m">
-                            <ref role="3cqZAo" node="1HqphBIBGMa" resolve="b" />
+                            <ref role="3cqZAo" node="4z0AnX8172P" resolve="b" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1HqphBIBGM8" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8172N" role="1bW2Oz">
                     <property role="TrG5h" value="a" />
-                    <node concept="2jxLKc" id="1HqphBIBGM9" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8172O" role="1tU5fm" />
                   </node>
-                  <node concept="Rh6nW" id="1HqphBIBGMa" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8172P" role="1bW2Oz">
                     <property role="TrG5h" value="b" />
-                    <node concept="2jxLKc" id="1HqphBIBGMb" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8172Q" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="1nlBCl" id="1HqphBIBGMc" role="2Dq5b$">
@@ -787,13 +794,27 @@
             <node concept="3zZkjj" id="5ZBgTg_Iy81" role="2OqNvi">
               <node concept="1bVj0M" id="5ZBgTg_Iy83" role="23t8la">
                 <node concept="3clFbS" id="5ZBgTg_Iy84" role="1bW5cS">
+                  <node concept="3cpWs8" id="76rIOES1tpa" role="3cqZAp">
+                    <node concept="3cpWsn" id="76rIOES1tpb" role="3cpWs9">
+                      <property role="TrG5h" value="builder" />
+                      <node concept="3uibUv" id="76rIOEQAdkU" role="1tU5fm">
+                        <ref role="3uigEE" to="pdwk:~ContainmentContext$Builder" resolve="ContainmentContext.Builder" />
+                      </node>
+                      <node concept="2ShNRf" id="76rIOES1tpc" role="33vP2m">
+                        <node concept="1pGfFk" id="76rIOES1tpd" role="2ShVmc">
+                          <property role="373rjd" value="true" />
+                          <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.&lt;init&gt;()" resolve="ContainmentContext.Builder" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
                   <node concept="3clFbF" id="5ZBgTg_Iyka" role="3cqZAp">
                     <node concept="1Wc70l" id="4um6WxnZVYt" role="3clFbG">
                       <node concept="1Wc70l" id="5ZBgTg_I_br" role="3uHU7B">
                         <node concept="3fqX7Q" id="5ZBgTg_IznW" role="3uHU7B">
                           <node concept="2OqwBi" id="5ZBgTg_IznY" role="3fr31v">
                             <node concept="37vLTw" id="5ZBgTg_IznZ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5ZBgTg_Iy85" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8172R" resolve="it" />
                             </node>
                             <node concept="liA8E" id="5ZBgTg_Izo0" role="2OqNvi">
                               <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -802,29 +823,50 @@
                         </node>
                         <node concept="2OqwBi" id="5ZBgTg_I_T4" role="3uHU7w">
                           <node concept="37vLTw" id="5ZBgTg_I_FS" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5ZBgTg_Iy85" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8172R" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="4um6WxnZVtc" role="2OqNvi">
                             <ref role="37wK5l" node="5ZBgTg_IANQ" resolve="isMainAttribute" />
                           </node>
                         </node>
                       </node>
-                      <node concept="2YIFZM" id="7VZAX31dZ6l" role="3uHU7w">
-                        <ref role="37wK5l" to="ykok:~ModelConstraints.canBeChild(org.jetbrains.mps.openapi.model.SNode,org.jetbrains.mps.openapi.language.SAbstractConcept,org.jetbrains.mps.openapi.language.SContainmentLink,jetbrains.mps.smodel.runtime.CheckingNodeContext)" resolve="canBeChild" />
-                        <ref role="1Pybhc" to="ykok:~ModelConstraints" resolve="ModelConstraints" />
-                        <node concept="13iPFW" id="4um6WxnZX4M" role="37wK5m" />
-                        <node concept="37vLTw" id="4um6WxnZXZN" role="37wK5m">
-                          <ref role="3cqZAo" node="5ZBgTg_Iy85" resolve="it" />
+                      <node concept="2OqwBi" id="4z0AnX6tT$k" role="3uHU7w">
+                        <node concept="2YIFZM" id="2DuGb1kxG63" role="2Oq$k0">
+                          <ref role="37wK5l" to="ykol:~ConstraintsCanBeFacade.checkCanBeChild(jetbrains.mps.core.aspects.constraints.rules.kinds.ContainmentContext)" resolve="checkCanBeChild" />
+                          <ref role="1Pybhc" to="ykol:~ConstraintsCanBeFacade" resolve="ConstraintsCanBeFacade" />
+                          <node concept="2OqwBi" id="2DuGb1kxG64" role="37wK5m">
+                            <node concept="2OqwBi" id="2DuGb1kxG65" role="2Oq$k0">
+                              <node concept="2OqwBi" id="2DuGb1kxG66" role="2Oq$k0">
+                                <node concept="37vLTw" id="76rIOES1tpe" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="76rIOES1tpb" resolve="builder" />
+                                </node>
+                                <node concept="liA8E" id="2DuGb1kxG69" role="2OqNvi">
+                                  <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.parentNode(org.jetbrains.mps.openapi.model.SNode)" resolve="parentNode" />
+                                  <node concept="13iPFW" id="2DuGb1kxG6a" role="37wK5m" />
+                                </node>
+                              </node>
+                              <node concept="liA8E" id="2DuGb1kxG6b" role="2OqNvi">
+                                <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.childConcept(org.jetbrains.mps.openapi.language.SAbstractConcept)" resolve="childConcept" />
+                                <node concept="37vLTw" id="2DuGb1kxG6c" role="37wK5m">
+                                  <ref role="3cqZAo" node="4z0AnX8172R" resolve="it" />
+                                </node>
+                              </node>
+                            </node>
+                            <node concept="liA8E" id="2DuGb1kxG6d" role="2OqNvi">
+                              <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.build()" resolve="build" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="liA8E" id="4z0AnX6tVm8" role="2OqNvi">
+                          <ref role="37wK5l" to="33ny:~List.isEmpty()" resolve="isEmpty" />
                         </node>
-                        <node concept="10Nm6u" id="7VZAX31dZ6o" role="37wK5m" />
-                        <node concept="10Nm6u" id="7VZAX31dZ6p" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5ZBgTg_Iy85" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8172R" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5ZBgTg_Iy86" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8172S" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -854,7 +896,7 @@
                     <node concept="2OqwBi" id="3fP_noAMNYc" role="3clFbG">
                       <node concept="2OqwBi" id="3fP_noAMRbE" role="2Oq$k0">
                         <node concept="37vLTw" id="3fP_noAMNYd" role="2Oq$k0">
-                          <ref role="3cqZAo" node="3fP_noAMNYk" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8172T" resolve="it" />
                         </node>
                         <node concept="2yIwOk" id="3fP_noAMR__" role="2OqNvi" />
                       </node>
@@ -864,9 +906,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3fP_noAMNYk" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8172T" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3fP_noAMNYl" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8172U" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/editor.mps
index 39c415526b..4f94dbe72f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/editor.mps
@@ -6,7 +6,7 @@
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="120e1c9d-4e27-4478-b2af-b2c3bd3850b0" name="com.mbeddr.mpsutil.editor.querylist" version="-1" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
     <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="2" />
     <use id="b1ab8c10-c118-4755-bf2a-cebab35cf533" name="jetbrains.mps.lang.editor.tooltips" version="0" />
@@ -79,10 +79,10 @@
       </concept>
       <concept id="1186414860679" name="jetbrains.mps.lang.editor.structure.EditableStyleClassItem" flags="ln" index="VPxyj" />
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -121,7 +121,7 @@
       <concept id="1073389577006" name="jetbrains.mps.lang.editor.structure.CellModel_Constant" flags="sn" stub="3610246225209162225" index="3F0ifn">
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -184,7 +184,7 @@
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
       <concept id="1068581242875" name="jetbrains.mps.baseLanguage.structure.PlusExpression" flags="nn" index="3cpWs3" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -199,6 +199,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -267,7 +268,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -285,7 +286,6 @@
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
     </language>
@@ -397,7 +397,7 @@
                           <node concept="10Nm6u" id="4A8SzOVb0KZ" role="3uHU7w" />
                           <node concept="2OqwBi" id="4A8SzOVb0we" role="3uHU7B">
                             <node concept="37vLTw" id="4A8SzOVb0rx" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4A8SzOVb0ls" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8172V" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="4A8SzOVb0BJ" role="2OqNvi">
                               <ref role="37wK5l" to="soq7:4A8SzOVam5y" resolve="summaryString" />
@@ -406,9 +406,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4A8SzOVb0ls" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8172V" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4A8SzOVb0lt" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8172W" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -500,7 +500,7 @@
                         <node concept="10Nm6u" id="4A8SzOVb2oc" role="3uHU7w" />
                         <node concept="2OqwBi" id="4A8SzOVb2ds" role="3uHU7B">
                           <node concept="37vLTw" id="4A8SzOVb29O" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4A8SzOVb255" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8172X" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="4A8SzOVb2je" role="2OqNvi">
                             <ref role="37wK5l" to="soq7:4A8SzOVam5y" resolve="summaryString" />
@@ -509,9 +509,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4A8SzOVb255" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8172X" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4A8SzOVb256" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8172Y" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -885,7 +885,7 @@
                                 <node concept="2OqwBi" id="4p5cXWqPMNc" role="3clFbG">
                                   <node concept="2OqwBi" id="4p5cXWqPLw5" role="2Oq$k0">
                                     <node concept="37vLTw" id="4p5cXWqPLcd" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4p5cXWqPKUl" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8172Z" resolve="it" />
                                     </node>
                                     <node concept="2yIwOk" id="4p5cXWqPMdd" role="2OqNvi" />
                                   </node>
@@ -895,9 +895,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="4p5cXWqPKUl" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8172Z" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="4p5cXWqPKUm" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX81730" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/plugin.mps
index d7f0b3fc0a..705fada751 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -26,7 +26,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
@@ -86,7 +86,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -104,7 +104,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615" />
@@ -124,6 +124,7 @@
       <concept id="3175313036448560967" name="jetbrains.mps.lang.extension.structure.GetExtensionObjectsOperation" flags="nn" index="SfwO_" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -152,7 +153,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -179,7 +180,6 @@
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
     </language>
@@ -321,7 +321,7 @@
                       <node concept="2OqwBi" id="6TDynbfeEVw" role="3clFbG">
                         <node concept="2OqwBi" id="6TDynbfeEVx" role="2Oq$k0">
                           <node concept="37vLTw" id="6TDynbfeEVy" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6TDynbfeEOv" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX81733" resolve="it" />
                           </node>
                           <node concept="liA8E" id="6TDynbfeEVz" role="2OqNvi">
                             <ref role="37wK5l" node="5aWcZMN3ifR" resolve="getSupportedAttributedTypes" />
@@ -338,25 +338,25 @@
                                   <node concept="1mIQ4w" id="6TDynbfeEVE" role="2OqNvi">
                                     <node concept="25Kdxt" id="6TDynbfeEVF" role="cj9EA">
                                       <node concept="37vLTw" id="6TDynbfeEVG" role="25KhWn">
-                                        <ref role="3cqZAo" node="6TDynbfeEVH" resolve="attributedConcept" />
+                                        <ref role="3cqZAo" node="4z0AnX81731" resolve="attributedConcept" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6TDynbfeEVH" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX81731" role="1bW2Oz">
                               <property role="TrG5h" value="attributedConcept" />
-                              <node concept="2jxLKc" id="6TDynbfeEVI" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX81732" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6TDynbfeEOv" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX81733" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6TDynbfeEOw" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX81734" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -368,7 +368,7 @@
                   <node concept="3clFbF" id="6TDynbfeHvn" role="3cqZAp">
                     <node concept="2OqwBi" id="6TDynbfeHSh" role="3clFbG">
                       <node concept="37vLTw" id="6TDynbfeHCS" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6TDynbfeHvp" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX81735" resolve="it" />
                       </node>
                       <node concept="liA8E" id="6TDynbfeIRd" role="2OqNvi">
                         <ref role="37wK5l" node="6TDynbfe$rC" resolve="requiresMandatoryAttributes" />
@@ -379,9 +379,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6TDynbfeHvp" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81735" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6TDynbfeHvq" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81736" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -452,7 +452,7 @@
                       <node concept="2OqwBi" id="5IqIsYeDEjY" role="3clFbG">
                         <node concept="2OqwBi" id="5aWcZMN4aqH" role="2Oq$k0">
                           <node concept="37vLTw" id="5aWcZMN4ah9" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5aWcZMN4aaL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX81739" resolve="it" />
                           </node>
                           <node concept="liA8E" id="5aWcZMN4aKQ" role="2OqNvi">
                             <ref role="37wK5l" node="5aWcZMN3ifR" resolve="getSupportedAttributedTypes" />
@@ -469,25 +469,25 @@
                                   <node concept="1mIQ4w" id="5IqIsYeDIWU" role="2OqNvi">
                                     <node concept="25Kdxt" id="5IqIsYeDJqN" role="cj9EA">
                                       <node concept="37vLTw" id="5IqIsYeDKcP" role="25KhWn">
-                                        <ref role="3cqZAo" node="5IqIsYeDG1J" resolve="attributedConcept" />
+                                        <ref role="3cqZAo" node="4z0AnX81737" resolve="attributedConcept" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5IqIsYeDG1J" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX81737" role="1bW2Oz">
                               <property role="TrG5h" value="attributedConcept" />
-                              <node concept="2jxLKc" id="5IqIsYeDG1K" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX81738" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5aWcZMN4aaL" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX81739" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5aWcZMN4aaM" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8173a" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -503,7 +503,7 @@
                       </node>
                       <node concept="2OqwBi" id="5aWcZMN4_mt" role="33vP2m">
                         <node concept="37vLTw" id="5aWcZMN4_mu" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5aWcZMN4bB$" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8173b" resolve="it" />
                         </node>
                         <node concept="liA8E" id="5aWcZMN4_mv" role="2OqNvi">
                           <ref role="37wK5l" node="5aWcZMN3iQj" resolve="createMandatoryAttributesFor" />
@@ -575,9 +575,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5aWcZMN4bB$" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173b" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5aWcZMN4bB_" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173c" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/structure.mps
index 3ef1c9d342..30c639126d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/structure.mps
@@ -42,7 +42,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/typesystem.mps
index 976f1d93af..d939240cbd 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/models/typesystem.mps
@@ -53,7 +53,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -109,7 +109,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/org.iets3.core.attributes.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/org.iets3.core.attributes.mpl
index fdbfa2b194..38af89b024 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/org.iets3.core.attributes.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.attributes/org.iets3.core.attributes.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -19,8 +18,7 @@
     <dependency reexport="false">6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)</dependency>
     <dependency reexport="false">583939be-ded0-4735-a055-a74f8477fc34(org.iets3.core.attributes)</dependency>
     <dependency reexport="false">f3eafff0-30d2-46d6-9150-f0f3b880ce27(org.iets3.core.expr.path)</dependency>
-    <dependency reexport="false">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
-    <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
+    <dependency reexport="false">8e98f4e2-decf-4e97-bf80-9109e8b759ee(jetbrains.mps.lang.constraints.rules.runtime)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:120e1c9d-4e27-4478-b2af-b2c3bd3850b0:com.mbeddr.mpsutil.editor.querylist" version="0" />
@@ -29,7 +27,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -57,7 +55,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
@@ -104,6 +102,7 @@
     <module reference="ae6d8005-36be-4cb6-945b-8c8cfc033c51(jetbrains.mps.ide.httpsupport.runtime)" version="0" />
     <module reference="2d3c70e9-aab2-4870-8d8d-6036800e4103(jetbrains.mps.kernel)" version="0" />
     <module reference="d936855b-48da-4812-a8a0-2bfddd633ac5(jetbrains.mps.lang.behavior.api)" version="0" />
+    <module reference="8e98f4e2-decf-4e97-bf80-9109e8b759ee(jetbrains.mps.lang.constraints.rules.runtime)" version="0" />
     <module reference="ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)" version="0" />
     <module reference="a9e4c532-c5f5-4bb7-99ef-42abb73bbb70(jetbrains.mps.lang.descriptor.aspects)" version="0" />
     <module reference="446c26eb-2b7b-4bf0-9b35-f83fa582753e(jetbrains.mps.lang.modelapi)" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/behavior.mps
index 6860e48dc4..1f3b464843 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/behavior.mps
@@ -6,16 +6,16 @@
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
-    <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
+    <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
   <imports>
     <import index="4kwy" ref="r:657c9fde-2f36-4e61-ae17-20f02b8630ad(org.iets3.core.base.structure)" />
     <import index="guwi" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.io(JDK/)" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
-    <import index="39al" ref="5454dbfd-2075-4de0-b85e-fa645eb6957e/r:5bc020f2-590a-4818-ae68-fa483b92486f(com.mbeddr.mpsutil.serializer.xml/com.mbeddr.mpsutil.serializer.xml.serializer)" />
+    <import index="39al" ref="5454dbfd-2075-4de0-b85e-fa645eb6957e/r:5bc020f2-590a-4818-ae68-fa483b92486f(de.itemis.mps.utils.serializer.xml/de.itemis.mps.utils.serializer.xml.serializer)" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" />
     <import index="f4zo" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor.cells(MPS.Editor/)" />
     <import index="kvq8" ref="r:2e938759-cfd0-47cd-9046-896d85204f59(de.slisson.mps.hacks.editor)" />
@@ -52,7 +52,7 @@
         <child id="1068498886297" name="rValue" index="37vLTx" />
         <child id="1068498886295" name="lValue" index="37vLTJ" />
       </concept>
-      <concept id="2323553266850475941" name="jetbrains.mps.baseLanguage.structure.IHasModifiers" flags="ng" index="2frcj7">
+      <concept id="2323553266850475941" name="jetbrains.mps.baseLanguage.structure.IHasModifiers" flags="ngI" index="2frcj7">
         <child id="2323553266850475953" name="modifiers" index="2frcjj" />
       </concept>
       <concept id="4836112446988635817" name="jetbrains.mps.baseLanguage.structure.UndefinedType" flags="in" index="2jxLKc" />
@@ -65,7 +65,7 @@
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
         <child id="1188214630783" name="value" index="2B76xF" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1188214545140" name="jetbrains.mps.baseLanguage.structure.AnnotationInstanceValue" flags="ng" index="2B6LJw">
@@ -175,7 +175,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -200,7 +200,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615">
@@ -227,6 +227,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -286,7 +287,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -327,7 +328,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -455,7 +455,7 @@
     <ref role="13h7C2" to="4kwy:3R3AIvuMXwK" resolve="ICanStoreCheckResult" />
     <node concept="13i0hz" id="3R3AIvum$_6" role="13h7CS">
       <property role="13i0iv" value="false" />
-      <property role="13i0it" value="false" />
+      <property role="13i0it" value="true" />
       <property role="TrG5h" value="userObjectKey" />
       <node concept="3Tm1VV" id="3R3AIvum$_7" role="1B3o_S" />
       <node concept="3clFbS" id="3R3AIvum$_8" role="3clF47">
@@ -469,7 +469,7 @@
     </node>
     <node concept="13i0hz" id="3R3AIvuq5Dp" role="13h7CS">
       <property role="13i0iv" value="false" />
-      <property role="13i0it" value="false" />
+      <property role="13i0it" value="true" />
       <property role="TrG5h" value="storeLastResult" />
       <node concept="3Tm1VV" id="3R3AIvuq5Dq" role="1B3o_S" />
       <node concept="3clFbS" id="3R3AIvuq5Dr" role="3clF47">
@@ -539,6 +539,7 @@
     </node>
     <node concept="13i0hz" id="5yiuuzNYbce" role="13h7CS">
       <property role="TrG5h" value="deleteLastResult" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="5yiuuzNYbcf" role="1B3o_S" />
       <node concept="3uibUv" id="5yiuuzNYczd" role="3clF45">
         <ref role="3uigEE" node="5zG5$Lyex1G" resolve="IResult" />
@@ -591,7 +592,7 @@
     </node>
     <node concept="13i0hz" id="3R3AIvumwpO" role="13h7CS">
       <property role="13i0iv" value="false" />
-      <property role="13i0it" value="false" />
+      <property role="13i0it" value="true" />
       <property role="TrG5h" value="hasExistingResult" />
       <node concept="3Tm1VV" id="3R3AIvumwpP" role="1B3o_S" />
       <node concept="3clFbS" id="3R3AIvumwpQ" role="3clF47">
@@ -2714,7 +2715,7 @@
                   <node concept="3clFbF" id="3JvidvJxehH" role="3cqZAp">
                     <node concept="2OqwBi" id="3JvidvJxemu" role="3clFbG">
                       <node concept="37vLTw" id="3JvidvJxehG" role="2Oq$k0">
-                        <ref role="3cqZAo" node="3JvidvJxeen" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173d" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="3JvidvJxew9" role="2OqNvi">
                         <ref role="37wK5l" node="3JvidvJx7iM" resolve="performAdditionalEditorUpdate" />
@@ -2725,9 +2726,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3JvidvJxeen" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173d" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3JvidvJxeeo" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173e" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2775,15 +2776,15 @@
                         <node concept="3clFbF" id="3JvidvJwMGj" role="3cqZAp">
                           <node concept="2OqwBi" id="3JvidvJwN1D" role="3clFbG">
                             <node concept="37vLTw" id="3JvidvJwMGi" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3JvidvJwMri" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8173f" resolve="it" />
                             </node>
                             <node concept="2Rxl7S" id="3JvidvJwNwU" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3JvidvJwMri" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8173f" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3JvidvJwMrj" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8173g" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2813,7 +2814,7 @@
                           <node concept="2OqwBi" id="4bmM0avMFeJ" role="25WWJ7">
                             <node concept="2OqwBi" id="4bmM0avMFeK" role="2Oq$k0">
                               <node concept="37vLTw" id="4bmM0avMFeL" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4bmM0avMFeO" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8173h" resolve="it" />
                               </node>
                               <node concept="liA8E" id="4bmM0avMFeM" role="2OqNvi">
                                 <ref role="37wK5l" to="exr9:~EditorComponent.getRootCell()" resolve="getRootCell" />
@@ -2827,9 +2828,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4bmM0avMFeO" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8173h" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4bmM0avMFeP" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8173i" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2840,7 +2841,7 @@
                   <node concept="3clFbF" id="4bmM0avMFeT" role="3cqZAp">
                     <node concept="2OqwBi" id="4bmM0avMFeU" role="3clFbG">
                       <node concept="37vLTw" id="4bmM0avMFeV" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4bmM0avMFeX" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173j" resolve="it" />
                       </node>
                       <node concept="liA8E" id="4bmM0avMFeW" role="2OqNvi">
                         <ref role="37wK5l" to="exr9:~EditorComponent.update()" resolve="update" />
@@ -2848,9 +2849,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4bmM0avMFeX" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173j" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4bmM0avMFeY" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173k" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/constraints.mps
index eaede86394..aa5a7c24a7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/constraints.mps
@@ -45,7 +45,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/editor.mps
index 696fbf18b6..f8acee1fff 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/editor.mps
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:80fb0853-eb3b-4e84-aebd-cc7fdb011d97(org.iets3.core.base.editor)">
   <persistence version="9" />
-  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="14" />
     <use id="62a3babb-5d40-4920-897f-d4144dc99c9d" name="com.mbeddr.mpsutil.userstyles" version="0" />
@@ -66,7 +65,7 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
       <concept id="3383245079137382180" name="jetbrains.mps.lang.editor.structure.StyleClass" flags="ig" index="14StLt" />
@@ -88,10 +87,10 @@
       </concept>
       <concept id="1139535439104" name="jetbrains.mps.lang.editor.structure.CellActionMap_ExecuteFunction" flags="in" index="1hAIg9" />
       <concept id="5692353713941573329" name="jetbrains.mps.lang.editor.structure.QueryFunction_TransformationMenu_ActionLabelText" flags="ig" index="1hCUdq" />
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1236262245656" name="jetbrains.mps.lang.editor.structure.MatchingLabelStyleClassItem" flags="ln" index="3mYdg7">
@@ -112,7 +111,7 @@
         <child id="1073389446424" name="childCellModel" index="3EZMnx" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1225898583838" name="jetbrains.mps.lang.editor.structure.ReadOnlyModelAccessor" flags="ng" index="1HfYo3">
@@ -121,7 +120,7 @@
       <concept id="1225900081164" name="jetbrains.mps.lang.editor.structure.CellModel_ReadOnlyModelAccessor" flags="sg" stub="3708815482283559694" index="1HlG4h">
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="5624877018228264944" name="jetbrains.mps.lang.editor.structure.TransformationMenuContribution" flags="ng" index="3INDKC">
@@ -225,7 +224,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -240,7 +239,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -255,6 +254,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -301,7 +301,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -317,7 +317,6 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
     </language>
     <language id="62a3babb-5d40-4920-897f-d4144dc99c9d" name="com.mbeddr.mpsutil.userstyles">
@@ -785,7 +784,7 @@
                           <node concept="3fqX7Q" id="7MFzeeGr9NL" role="3clFbG">
                             <node concept="2OqwBi" id="7MFzeeGr9NM" role="3fr31v">
                               <node concept="37vLTw" id="7MFzeeGr9NN" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7MFzeeGr9NQ" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8173l" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="7MFzeeGr9NO" role="2OqNvi">
                                 <node concept="chp4Y" id="7MFzeeGr9NP" role="cj9EA">
@@ -796,9 +795,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="7MFzeeGr9NQ" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8173l" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="7MFzeeGr9NR" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8173m" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1026,7 +1025,7 @@
                           <node concept="3fqX7Q" id="7MFzeeGrfQ_" role="3clFbG">
                             <node concept="2OqwBi" id="7MFzeeGrfQA" role="3fr31v">
                               <node concept="37vLTw" id="7MFzeeGrfQB" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7MFzeeGrfQE" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8173n" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="7MFzeeGrfQC" role="2OqNvi">
                                 <node concept="chp4Y" id="7MFzeeGrfQD" role="cj9EA">
@@ -1037,9 +1036,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="7MFzeeGrfQE" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8173n" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="7MFzeeGrfQF" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8173o" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1304,7 +1303,7 @@
                       <node concept="3fqX7Q" id="1RXwPEXP854" role="3clFbG">
                         <node concept="2OqwBi" id="1RXwPEXP855" role="3fr31v">
                           <node concept="37vLTw" id="1RXwPEXP856" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1RXwPEXP859" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8173p" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="1RXwPEXP857" role="2OqNvi">
                             <node concept="chp4Y" id="1RXwPEXP858" role="cj9EA">
@@ -1315,9 +1314,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1RXwPEXP859" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8173p" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="1RXwPEXP85a" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8173q" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/intentions.mps
index e88333d631..13f5ce4aa6 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/intentions.mps
@@ -56,7 +56,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -70,6 +70,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -116,7 +117,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -134,7 +135,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
     </language>
   </registry>
@@ -267,7 +267,7 @@
                         <node concept="2OqwBi" id="6js_s$imKOJ" role="3uHU7B">
                           <node concept="2OqwBi" id="6js_s$imKOK" role="2Oq$k0">
                             <node concept="37vLTw" id="6js_s$imKOL" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6js_s$imKOO" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8173r" resolve="it" />
                             </node>
                             <node concept="liA8E" id="6js_s$imKOM" role="2OqNvi">
                               <ref role="37wK5l" to="exr9:~EditorComponent.getRootCell()" resolve="getRootCell" />
@@ -280,9 +280,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6js_s$imKOO" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8173r" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6js_s$imKOP" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8173s" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -293,7 +293,7 @@
                   <node concept="3clFbF" id="6js_s$imKOT" role="3cqZAp">
                     <node concept="2OqwBi" id="6js_s$imKOU" role="3clFbG">
                       <node concept="37vLTw" id="6js_s$imKOV" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6js_s$imKOX" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173t" resolve="it" />
                       </node>
                       <node concept="liA8E" id="6js_s$imKOW" role="2OqNvi">
                         <ref role="37wK5l" to="exr9:~EditorComponent.update()" resolve="update" />
@@ -301,9 +301,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6js_s$imKOX" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173t" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6js_s$imKOY" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173u" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -332,7 +332,7 @@
                   <node concept="3clFbF" id="6js_s$imTAS" role="3cqZAp">
                     <node concept="2OqwBi" id="6js_s$imTR0" role="3clFbG">
                       <node concept="37vLTw" id="6js_s$imTAR" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6js_s$imTAC" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173v" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="1Kc3mnJ0OvJ" role="2OqNvi">
                         <ref role="37wK5l" to="gdgh:3R3AIvumwpO" resolve="hasExistingResult" />
@@ -340,9 +340,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6js_s$imTAC" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173v" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6js_s$imTAD" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173w" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/plugin.mps
index 015a386084..a0117c27c9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/plugin.mps
@@ -2,8 +2,8 @@
 <model ref="r:197c9a7f-bef3-4d38-a48a-51524151fecf(org.iets3.core.base.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
   </languages>
   <imports>
     <import index="gdgh" ref="r:e4d9478b-ae0e-416e-be60-73d136571015(org.iets3.core.base.behavior)" />
@@ -21,7 +21,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
@@ -93,7 +93,7 @@
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -110,7 +110,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -124,7 +124,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/structure.mps
index ef037de9c4..aa0d31fb4b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/structure.mps
@@ -51,7 +51,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/typesystem.mps
index 2ebc656814..bb74f9f68d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/models/typesystem.mps
@@ -78,7 +78,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -96,6 +96,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
         <child id="1199542501692" name="parameterType" index="1ajw0F" />
@@ -145,7 +146,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -187,7 +188,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -364,15 +364,15 @@
                                             <node concept="3clFbF" id="3SU4Z7Bfw3c" role="3cqZAp">
                                               <node concept="2OqwBi" id="3SU4Z7Bfw3d" role="3clFbG">
                                                 <node concept="37vLTw" id="3SU4Z7Bfw3e" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="3SU4Z7Bfw3g" resolve="targetNode" />
+                                                  <ref role="3cqZAo" node="4z0AnX8173x" resolve="targetNode" />
                                                 </node>
                                                 <node concept="3x8VRR" id="3SU4Z7Bfw3f" role="2OqNvi" />
                                               </node>
                                             </node>
                                           </node>
-                                          <node concept="Rh6nW" id="3SU4Z7Bfw3g" role="1bW2Oz">
+                                          <node concept="gl6BB" id="4z0AnX8173x" role="1bW2Oz">
                                             <property role="TrG5h" value="targetNode" />
-                                            <node concept="2jxLKc" id="3SU4Z7Bfw3h" role="1tU5fm" />
+                                            <node concept="2jxLKc" id="4z0AnX8173y" role="1tU5fm" />
                                           </node>
                                         </node>
                                       </node>
@@ -580,7 +580,7 @@
                                         <node concept="3fqX7Q" id="4MH81Y0Un4X" role="3clFbG">
                                           <node concept="2OqwBi" id="4MH81Y0Un4Z" role="3fr31v">
                                             <node concept="37vLTw" id="4MH81Y0Un50" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4MH81Y0UmJY" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8173z" resolve="it" />
                                             </node>
                                             <node concept="liA8E" id="4MH81Y0Un51" role="2OqNvi">
                                               <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
@@ -589,9 +589,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="4MH81Y0UmJY" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX8173z" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="4MH81Y0UmJZ" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX8173$" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -606,15 +606,15 @@
                                         </node>
                                         <node concept="1Bd96e" id="4MH81Y0UnYr" role="2OqNvi">
                                           <node concept="37vLTw" id="4MH81Y0Uo2K" role="1BdPVh">
-                                            <ref role="3cqZAo" node="4MH81Y0Un_k" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8173_" resolve="it" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="4MH81Y0Un_k" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX8173_" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="4MH81Y0Un_l" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX8173A" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/org.iets3.core.base.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/org.iets3.core.base.mpl
index 9866b3558d..dd1df3b46f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.base/org.iets3.core.base.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.base/org.iets3.core.base.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -45,7 +44,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/behavior.mps
index a8b7b34628..8e17a10bd4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/behavior.mps
@@ -119,7 +119,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -132,13 +132,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -214,7 +215,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -238,7 +239,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1175845471038" name="jetbrains.mps.baseLanguage.collections.structure.ReverseOperation" flags="nn" index="35Qw8J" />
@@ -340,7 +340,7 @@
                     <node concept="3fqX7Q" id="5a_u3OzPrMZ" role="3clFbG">
                       <node concept="2OqwBi" id="5a_u3OzPrN1" role="3fr31v">
                         <node concept="37vLTw" id="5a_u3OzPrN2" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5a_u3OzPr6T" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8173B" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="5a_u3OzPrN3" role="2OqNvi">
                           <ref role="3TsBF5" to="v0r8:5a_u3OzNkkU" resolve="abstract" />
@@ -349,9 +349,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5a_u3OzPr6T" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173B" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5a_u3OzPr6U" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173C" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -386,7 +386,7 @@
                   <node concept="3clFbF" id="5a_u3OzPrSU" role="3cqZAp">
                     <node concept="2OqwBi" id="5a_u3OzPrSW" role="3clFbG">
                       <node concept="37vLTw" id="5a_u3OzPrSX" role="2Oq$k0">
-                        <ref role="3cqZAo" node="5a_u3OzPrSZ" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173D" resolve="it" />
                       </node>
                       <node concept="3TrcHB" id="5a_u3OzPrSY" role="2OqNvi">
                         <ref role="3TsBF5" to="v0r8:5a_u3OzNkkU" resolve="abstract" />
@@ -394,9 +394,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5a_u3OzPrSZ" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173D" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5a_u3OzPrT0" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173E" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -504,7 +504,7 @@
                         <node concept="3clFbF" id="28$LOSBEeOo" role="3cqZAp">
                           <node concept="2OqwBi" id="28$LOSBEeZN" role="3clFbG">
                             <node concept="37vLTw" id="28$LOSBEeOn" role="2Oq$k0">
-                              <ref role="3cqZAo" node="28$LOSBEeEQ" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8173F" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="28$LOSBEfgZ" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:7D7uZV2iYAD" resolve="type" />
@@ -512,9 +512,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="28$LOSBEeEQ" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8173F" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="28$LOSBEeER" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8173G" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -540,7 +540,7 @@
                           <node concept="3clFbF" id="28$LOSBEn6h" role="3cqZAp">
                             <node concept="2OqwBi" id="28$LOSBEnll" role="3clFbG">
                               <node concept="37vLTw" id="28$LOSBEn6g" role="2Oq$k0">
-                                <ref role="3cqZAo" node="28$LOSBEmRQ" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8173H" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="28$LOSBEoA$" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:7D7uZV2iYAD" resolve="type" />
@@ -548,9 +548,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="28$LOSBEmRQ" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8173H" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="28$LOSBEmRR" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8173I" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1132,16 +1132,16 @@
                           </node>
                           <node concept="2OqwBi" id="7aipPVpERzR" role="3uHU7B">
                             <node concept="37vLTw" id="7aipPVpERzS" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7aipPVpERzU" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8173J" resolve="it" />
                             </node>
                             <node concept="2bSWHS" id="7aipPVpERzT" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="7aipPVpERzU" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8173J" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="7aipPVpERzV" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8173K" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1152,7 +1152,7 @@
                     <node concept="3clFbF" id="7aipPVpERzZ" role="3cqZAp">
                       <node concept="3cpWs3" id="7aipPVpER$0" role="3clFbG">
                         <node concept="37vLTw" id="7aipPVpER$1" role="3uHU7w">
-                          <ref role="3cqZAo" node="7aipPVpER$5" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8173L" resolve="it" />
                         </node>
                         <node concept="37vLTw" id="7aipPVpER$2" role="3uHU7B">
                           <ref role="3cqZAo" node="7aipPVpER$3" resolve="s" />
@@ -1164,9 +1164,9 @@
                     <property role="TrG5h" value="s" />
                     <node concept="17QB3L" id="7aipPVpER$4" role="1tU5fm" />
                   </node>
-                  <node concept="Rh6nW" id="7aipPVpER$5" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8173L" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7aipPVpER$6" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8173M" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="Xl_RD" id="7aipPVpER$7" role="1MDeny">
@@ -1250,7 +1250,7 @@
                     <node concept="3clFbF" id="28$LOSAhdin" role="3cqZAp">
                       <node concept="2OqwBi" id="28$LOSAhdwP" role="3clFbG">
                         <node concept="37vLTw" id="28$LOSAhdim" role="2Oq$k0">
-                          <ref role="3cqZAo" node="28$LOSAhd4U" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8173N" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="28$LOSAhdRi" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
@@ -1258,9 +1258,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="28$LOSAhd4U" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8173N" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="28$LOSAhd4V" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8173O" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1312,7 +1312,7 @@
                             <ref role="cht4Q" to="v0r8:5a_u3OyMSN$" resolve="AlgebraicTerm" />
                           </node>
                           <node concept="37vLTw" id="28$LOSBsyFL" role="1m5AlR">
-                            <ref role="3cqZAo" node="28$LOSBsx5X" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8173P" resolve="it" />
                           </node>
                         </node>
                         <node concept="2qgKlT" id="28$LOSBs$5T" role="2OqNvi">
@@ -1321,7 +1321,7 @@
                       </node>
                       <node concept="2OqwBi" id="28$LOSBsxoX" role="3uHU7B">
                         <node concept="37vLTw" id="28$LOSBsxbX" role="2Oq$k0">
-                          <ref role="3cqZAo" node="28$LOSBsx5X" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8173P" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="28$LOSBsxRo" role="2OqNvi">
                           <node concept="chp4Y" id="28$LOSBsy1N" role="cj9EA">
@@ -1332,9 +1332,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="28$LOSBsx5X" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173P" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="28$LOSBsx5Y" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173Q" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1366,7 +1366,7 @@
                   <node concept="3clFbF" id="28$LOSBsp6v" role="3cqZAp">
                     <node concept="2OqwBi" id="28$LOSBsp6w" role="3clFbG">
                       <node concept="37vLTw" id="28$LOSBsp6x" role="2Oq$k0">
-                        <ref role="3cqZAo" node="28$LOSBsp6$" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173R" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="28$LOSBsp6y" role="2OqNvi">
                         <node concept="chp4Y" id="28$LOSBsp6z" role="cj9EA">
@@ -1376,9 +1376,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="28$LOSBsp6$" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173R" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="28$LOSBsp6_" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173S" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2123,14 +2123,14 @@
                         </node>
                       </node>
                       <node concept="37vLTw" id="5a_u3OzQHs2" role="3uHU7B">
-                        <ref role="3cqZAo" node="5a_u3OzQyFC" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173T" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5a_u3OzQyFC" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173T" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5a_u3OzQyFD" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173U" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2389,14 +2389,14 @@
                         <ref role="3cqZAo" node="28$LOSBr$l_" resolve="constructor" />
                       </node>
                       <node concept="37vLTw" id="28$LOSBrFWj" role="3uHU7B">
-                        <ref role="3cqZAo" node="28$LOSBrFr_" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8173V" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="28$LOSBrFr_" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8173V" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="28$LOSBrFrA" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8173W" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/constraints.mps
index 3d1ed2c6de..46bac3f525 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/constraints.mps
@@ -80,7 +80,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -93,7 +93,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -117,6 +117,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -164,7 +165,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -172,7 +173,6 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
       <concept id="1178894719932" name="jetbrains.mps.baseLanguage.collections.structure.DistinctOperation" flags="nn" index="1VAtEI" />
     </language>
@@ -282,7 +282,7 @@
                             <node concept="3clFbF" id="5a_u3OzPYSX" role="3cqZAp">
                               <node concept="2OqwBi" id="5a_u3OzPYSY" role="3clFbG">
                                 <node concept="37vLTw" id="5a_u3OzPYSZ" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5a_u3OzPYT1" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8173X" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="5a_u3OzQ0wf" role="2OqNvi">
                                   <ref role="37wK5l" to="dnkk:5a_u3OzPizZ" resolve="allConstructors" />
@@ -290,9 +290,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="5a_u3OzPYT1" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8173X" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="5a_u3OzPYT2" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8173Y" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -347,7 +347,7 @@
                               <node concept="3clFbF" id="5a_u3OzPVja" role="3cqZAp">
                                 <node concept="2OqwBi" id="5a_u3OzPVjb" role="3clFbG">
                                   <node concept="37vLTw" id="5a_u3OzPVjc" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="5a_u3OzPVje" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8173Z" resolve="it" />
                                   </node>
                                   <node concept="2qgKlT" id="5a_u3OzPVjd" role="2OqNvi">
                                     <ref role="37wK5l" to="dnkk:5a_u3OzPjJn" resolve="concreteConstructors" />
@@ -355,9 +355,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5a_u3OzPVje" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8173Z" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="5a_u3OzPVjf" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX81740" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/editor.mps
index 5d132091d5..85227febd3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/editor.mps
@@ -71,7 +71,7 @@
       </concept>
       <concept id="1186414860679" name="jetbrains.mps.lang.editor.structure.EditableStyleClassItem" flags="ln" index="VPxyj" />
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -80,7 +80,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="3982520150125052579" name="jetbrains.mps.lang.editor.structure.QueryFunction_AttributeStyleParameter" flags="ig" index="3sjG9q" />
@@ -108,7 +108,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -185,7 +185,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -199,13 +199,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -222,7 +223,7 @@
       </concept>
       <concept id="8207263695490893775" name="com.mbeddr.mpsutil.grammarcells.structure.CellBasedRule" flags="ng" index="2ElW$n" />
       <concept id="8945098465480383073" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell_TransformationText" flags="ig" index="ZYGn8" />
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G" />
@@ -295,7 +296,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -304,7 +305,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225621920911" name="jetbrains.mps.baseLanguage.collections.structure.InsertElementOperation" flags="nn" index="1sK_Qi">
         <child id="1225621943565" name="element" index="1sKFgg" />
         <child id="1225621960341" name="index" index="1sKJu8" />
@@ -708,7 +708,7 @@
                           <node concept="3clFbF" id="7aipPVpTAJy" role="3cqZAp">
                             <node concept="2OqwBi" id="7aipPVpTAJz" role="3clFbG">
                               <node concept="37vLTw" id="7aipPVpTAJ$" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7aipPVpTAJB" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX81741" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="7aipPVpTAJ_" role="2OqNvi">
                                 <node concept="chp4Y" id="7aipPVpTAJA" role="cj9EA">
@@ -718,9 +718,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="7aipPVpTAJB" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX81741" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="7aipPVpTAJC" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX81742" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -842,7 +842,7 @@
                         <node concept="3clFbF" id="7aipPVpTAKp" role="3cqZAp">
                           <node concept="2OqwBi" id="7aipPVpTAKq" role="3clFbG">
                             <node concept="37vLTw" id="7aipPVpTAKr" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7aipPVpTAKu" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX81743" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="7aipPVpTAKs" role="2OqNvi">
                               <node concept="chp4Y" id="7aipPVpTAKt" role="cj9EA">
@@ -852,9 +852,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="7aipPVpTAKu" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX81743" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="7aipPVpTAKv" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX81744" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1292,7 +1292,7 @@
                       <node concept="2OqwBi" id="7aipPVpTT$2" role="3uHU7B">
                         <node concept="2JrnkZ" id="7aipPVpTT$3" role="2Oq$k0">
                           <node concept="37vLTw" id="7aipPVpTT$4" role="2JrQYb">
-                            <ref role="3cqZAo" node="7aipPVpTT$7" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX81745" resolve="it" />
                           </node>
                         </node>
                         <node concept="liA8E" id="7aipPVpTT$5" role="2OqNvi">
@@ -1305,9 +1305,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7aipPVpTT$7" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX81745" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7aipPVpTT$8" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX81746" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/intentions.mps
index e89cc11489..31ef1124a4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/intentions.mps
@@ -52,7 +52,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -121,7 +121,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/org.iets3.core.expr.adt.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/org.iets3.core.expr.adt.migration.mps
index 79077a8baa..0dabe87b81 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/org.iets3.core.expr.adt.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/org.iets3.core.expr.adt.migration.mps
@@ -28,7 +28,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/plugin.mps
index eb1b7e9ca5..267a15c5a0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
@@ -40,7 +40,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -151,7 +151,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -172,7 +172,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -191,6 +191,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -229,7 +230,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -268,7 +269,6 @@
       <concept id="1227022196108" name="jetbrains.mps.baseLanguage.collections.structure.RemoveAtElementOperation" flags="nn" index="2KedMh">
         <child id="1227022274197" name="index" index="2KewY8" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="4611582986551314327" name="jetbrains.mps.baseLanguage.collections.structure.OfTypeOperation" flags="nn" index="UnYns">
@@ -521,7 +521,7 @@
                     <node concept="3clFbF" id="7aipPVpQnAf" role="3cqZAp">
                       <node concept="2OqwBi" id="7aipPVpQnSY" role="3clFbG">
                         <node concept="37vLTw" id="7aipPVpQnAe" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpQnyU" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX81749" resolve="it" />
                         </node>
                         <node concept="liA8E" id="7aipPVpQodb" role="2OqNvi">
                           <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
@@ -529,9 +529,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7aipPVpQnyU" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX81749" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7aipPVpQnyV" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174a" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/structure.mps
index 0465ccdffe..db068589e4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/structure.mps
@@ -61,7 +61,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/typesystem.mps
index 7d3b5ce9d5..ad73d88962 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/models/typesystem.mps
@@ -90,7 +90,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -103,6 +103,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -241,7 +242,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -261,7 +262,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -1551,7 +1551,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="5a_u3O$05dR" role="1m5AlR">
                                               <node concept="37vLTw" id="5a_u3O$05dS" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="5a_u3OzZQHy" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX81747" resolve="it" />
                                               </node>
                                               <node concept="1mfA1w" id="5a_u3O$05dT" role="2OqNvi" />
                                             </node>
@@ -1571,7 +1571,7 @@
                                     <node concept="34jXtK" id="5a_u3O$05dX" role="2OqNvi">
                                       <node concept="2OqwBi" id="5a_u3O$05dY" role="25WWJ7">
                                         <node concept="37vLTw" id="5a_u3O$05dZ" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5a_u3OzZQHy" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX81747" resolve="it" />
                                         </node>
                                         <node concept="2bSWHS" id="5a_u3O$05e0" role="2OqNvi" />
                                       </node>
@@ -1600,9 +1600,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5a_u3OzZQHy" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX81747" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="5a_u3OzZQHz" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX81748" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -1688,20 +1688,20 @@
     <property role="TrG5h" value="typeof_LocDotTarget" />
     <property role="3GE5qa" value="dot" />
     <node concept="3clFbS" id="7aipPVpFzey" role="18ibNy">
-      <node concept="1Z5TYs" id="7aipPVpFz$w" role="3cqZAp">
-        <node concept="mw_s8" id="7aipPVpFz$L" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrB" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="7aipPVpFz$z" role="1ZfhK$">
-          <node concept="1Z2H0r" id="7aipPVpFzeO" role="mwGJk">
-            <node concept="1YBJjd" id="7aipPVpFzeV" role="1Z2MuG">
+      <node concept="1ZobV4" id="hTGlT9FXl2" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9FXl4" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9FXl5" role="mwGJk">
+            <node concept="1YBJjd" id="hTGlT9FXl6" role="1Z2MuG">
               <ref role="1YBMHb" node="7aipPVpFze$" resolve="loc" />
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9FXl7" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9FXl8" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="7aipPVpFze$" role="1YuTPh">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/org.iets3.core.expr.adt.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/org.iets3.core.expr.adt.mpl
index ace2cea442..6dc3e70a54 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/org.iets3.core.expr.adt.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.adt/org.iets3.core.expr.adt.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)</dependency>
@@ -34,7 +33,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -62,7 +61,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/actions.mps
index 8cfe40ffd3..b1a2b65870 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/actions.mps
@@ -59,7 +59,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/behavior.mps
index d7c9255dc8..852cb6de3c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/behavior.mps
@@ -125,9 +125,11 @@
       <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
         <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
       </concept>
+      <concept id="5763944538902644732" name="jetbrains.mps.baseLanguage.structure.StaticMethodCallOperation" flags="ng" index="2PDubS" />
       <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
         <child id="1145553007750" name="creator" index="2ShVmc" />
       </concept>
+      <concept id="3870108946630849399" name="jetbrains.mps.baseLanguage.structure.StaticFieldReferenceOperation" flags="ng" index="SiP3y" />
       <concept id="1137021947720" name="jetbrains.mps.baseLanguage.structure.ConceptFunction" flags="in" index="2VMwT0">
         <child id="1137022507850" name="body" index="2VODD2" />
       </concept>
@@ -265,12 +267,16 @@
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
+      <concept id="1073063089578" name="jetbrains.mps.baseLanguage.structure.SuperMethodCall" flags="nn" index="3nyPlj" />
       <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk" />
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
         <property id="521412098689998745" name="nonStatic" index="2bfB8j" />
         <child id="5375687026011219971" name="member" index="jymVt" unordered="true" />
       </concept>
       <concept id="1171903607971" name="jetbrains.mps.baseLanguage.structure.WildCardType" flags="in" index="3qTvmN" />
+      <concept id="1171903916106" name="jetbrains.mps.baseLanguage.structure.UpperBoundType" flags="in" index="3qUE_q">
+        <child id="1171903916107" name="bound" index="3qUE_r" />
+      </concept>
       <concept id="7812454656619025416" name="jetbrains.mps.baseLanguage.structure.MethodDeclaration" flags="ng" index="1rXfSm">
         <property id="8355037393041754995" name="isNative" index="2aFKle" />
       </concept>
@@ -300,7 +306,9 @@
         <child id="1144231399730" name="condition" index="1Dwp0S" />
         <child id="1144231408325" name="iteration" index="1Dwrff" />
       </concept>
-      <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615" />
+      <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615">
+        <child id="1107797138135" name="extendedInterface" index="3HQHJm" />
+      </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
         <child id="8276990574886367510" name="catchClause" index="1zxBo5" />
         <child id="8276990574886367508" name="body" index="1zxBo7" />
@@ -330,6 +338,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
         <child id="1199542501692" name="parameterType" index="1ajw0F" />
@@ -350,6 +359,7 @@
       <concept id="5858074156537516430" name="jetbrains.mps.baseLanguage.javadoc.structure.ReturnBlockDocTag" flags="ng" index="x79VA">
         <property id="5858074156537516431" name="text" index="x79VB" />
       </concept>
+      <concept id="6832197706140896242" name="jetbrains.mps.baseLanguage.javadoc.structure.FieldDocComment" flags="ng" index="z59LJ" />
       <concept id="6832197706140518104" name="jetbrains.mps.baseLanguage.javadoc.structure.DocMethodParameterReference" flags="ng" index="zr_55" />
       <concept id="6832197706140518103" name="jetbrains.mps.baseLanguage.javadoc.structure.BaseParameterReference" flags="ng" index="zr_5a">
         <reference id="6832197706140518108" name="param" index="zr_51" />
@@ -378,12 +388,16 @@
       <concept id="2217234381367530195" name="jetbrains.mps.baseLanguage.javadoc.structure.MethodDocReference" flags="ng" index="VXe0Z">
         <reference id="2217234381367530196" name="methodDeclaration" index="VXe0S" />
       </concept>
+      <concept id="5562345046718956738" name="jetbrains.mps.baseLanguage.javadoc.structure.BaseVariableDocReference" flags="ng" index="YTMYr">
+        <reference id="5562345046718956740" name="declaration" index="YTMYt" />
+      </concept>
       <concept id="8970989240999019145" name="jetbrains.mps.baseLanguage.javadoc.structure.InlineTagCommentLinePart" flags="ng" index="1dT_AA">
         <child id="6962838954693749192" name="tag" index="qph3F" />
       </concept>
       <concept id="8970989240999019143" name="jetbrains.mps.baseLanguage.javadoc.structure.TextCommentLinePart" flags="ng" index="1dT_AC">
         <property id="8970989240999019144" name="text" index="1dT_AB" />
       </concept>
+      <concept id="6501140109493894267" name="jetbrains.mps.baseLanguage.javadoc.structure.StaticFieldDocReference" flags="ng" index="1RlsK7" />
       <concept id="2068944020170241612" name="jetbrains.mps.baseLanguage.javadoc.structure.ClassifierDocComment" flags="ng" index="3UR2Jj" />
     </language>
     <language id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation">
@@ -529,6 +543,10 @@
       <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
+      <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
+        <property id="8575328350543493365" name="message" index="huDt6" />
+        <property id="2423417345669755629" name="filter" index="1eyWvh" />
+      </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
         <property id="709746936026609031" name="linkId" index="3V$3ak" />
         <property id="709746936026609029" name="role_DebugInfo" index="3V$3am" />
@@ -623,13 +641,15 @@
         <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
       <concept id="1237909114519" name="jetbrains.mps.baseLanguage.collections.structure.GetValuesOperation" flags="nn" index="T8wYR" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
+      <concept id="4611582986551314327" name="jetbrains.mps.baseLanguage.collections.structure.OfTypeOperation" flags="nn" index="UnYns">
+        <child id="4611582986551314344" name="requestedType" index="UnYnz" />
+      </concept>
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
       <concept id="1205753243362" name="jetbrains.mps.baseLanguage.collections.structure.ChunkOperation" flags="nn" index="2WvAvU">
         <child id="1205753261887" name="length" index="2WvESB" />
@@ -975,7 +995,7 @@
                         <node concept="2OqwBi" id="62HIBxktG4O" role="3uHU7B">
                           <node concept="2OqwBi" id="15gN1OJYwA5" role="2Oq$k0">
                             <node concept="37vLTw" id="15gN1OJYwA6" role="2Oq$k0">
-                              <ref role="3cqZAo" node="15gN1OJYwAa" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174b" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="62HIBxktDw3" role="2OqNvi" />
                           </node>
@@ -986,9 +1006,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="15gN1OJYwAa" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174b" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="15gN1OJYwAb" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174c" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1024,7 +1044,7 @@
                         <node concept="2OqwBi" id="62HIBxktV07" role="3uHU7B">
                           <node concept="2OqwBi" id="62HIBxktV08" role="2Oq$k0">
                             <node concept="37vLTw" id="62HIBxktV09" role="2Oq$k0">
-                              <ref role="3cqZAo" node="62HIBxktTPH" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174d" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="62HIBxktV0a" role="2OqNvi" />
                           </node>
@@ -1035,9 +1055,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="62HIBxktTPH" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174d" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="62HIBxktTPI" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174e" role="1tU5fm" />
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                 </node>
               </node>
@@ -1094,7 +1114,7 @@
                             <node concept="2OqwBi" id="4Rn$FX8dv4u" role="3uHU7B">
                               <node concept="2OqwBi" id="4Rn$FX8d9p0" role="2Oq$k0">
                                 <node concept="37vLTw" id="4Rn$FX8d912" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4Rn$FX8d8N_" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8174f" resolve="it" />
                                 </node>
                                 <node concept="2yIwOk" id="4Rn$FX8dkxh" role="2OqNvi" />
                               </node>
@@ -1105,9 +1125,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="4Rn$FX8d8N_" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8174f" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="4Rn$FX8d8NA" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8174g" role="1tU5fm" />
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@@ -1144,7 +1164,7 @@
                         <node concept="2OqwBi" id="2qNvObDoIq$" role="3fr31v">
                           <node concept="2OqwBi" id="2qNvObDoIq_" role="2Oq$k0">
                             <node concept="37vLTw" id="2qNvObDoIqA" role="2Oq$k0">
-                              <ref role="3cqZAo" node="15gN1OKc75y" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174h" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="2qNvObDoIqB" role="2OqNvi" />
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@@ -1157,9 +1177,9 @@
                       </node>
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-                  <node concept="Rh6nW" id="15gN1OKc75y" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174h" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="15gN1OKc75z" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174i" role="1tU5fm" />
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                 </node>
               </node>
@@ -1188,7 +1208,7 @@
                               <ref role="cht4Q" to="hm2y:6sdnDbSla17" resolve="Expression" />
                             </node>
                             <node concept="37vLTw" id="2qNvObDoD_y" role="1m5AlR">
-                              <ref role="3cqZAo" node="15gN1OKceg7" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174j" resolve="it" />
                             </node>
                           </node>
                           <node concept="2qgKlT" id="2qNvObDoD_z" role="2OqNvi">
@@ -1221,9 +1241,9 @@
                       </node>
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-                  <node concept="Rh6nW" id="15gN1OKceg7" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174j" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="15gN1OKceg8" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174k" role="1tU5fm" />
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@@ -1899,7 +1919,7 @@
                         <node concept="3fqX7Q" id="6iqfHNBQFE5" role="3clFbG">
                           <node concept="2OqwBi" id="6iqfHNBQFON" role="3fr31v">
                             <node concept="37vLTw" id="6iqfHNBQFIP" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6iqfHNBQFzG" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174l" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="6iqfHNBQFXt" role="2OqNvi">
                               <ref role="37wK5l" node="6iqfHNBQFh1" resolve="hideInStack" />
@@ -1908,9 +1928,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6iqfHNBQFzG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8174l" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6iqfHNBQFzH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8174m" role="1tU5fm" />
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@@ -1921,7 +1941,7 @@
                     <node concept="3clFbF" id="6iqfHNBPq32" role="3cqZAp">
                       <node concept="2OqwBi" id="6iqfHNBPq6l" role="3clFbG">
                         <node concept="37vLTw" id="6iqfHNBPq31" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6iqfHNBPq0L" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8174n" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="6iqfHNBPqaW" role="2OqNvi">
                           <ref role="37wK5l" node="6iqfHNBPkjP" resolve="asString" />
@@ -1929,9 +1949,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6iqfHNBPq0L" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174n" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6iqfHNBPq0M" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174o" role="1tU5fm" />
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                 </node>
               </node>
@@ -1960,7 +1980,7 @@
                   <node concept="3clFbF" id="6iqfHNBPrqt" role="3cqZAp">
                     <node concept="3cpWs3" id="6iqfHNBPrMM" role="3clFbG">
                       <node concept="37vLTw" id="6iqfHNBPrMT" role="3uHU7w">
-                        <ref role="3cqZAo" node="6iqfHNBPreW" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8174p" resolve="it" />
                       </node>
                       <node concept="3cpWs3" id="6iqfHNBPstl" role="3uHU7B">
                         <node concept="37vLTw" id="6iqfHNBPswV" role="3uHU7w">
@@ -1982,9 +2002,9 @@
                   <property role="TrG5h" value="s" />
                   <node concept="17QB3L" id="6iqfHNBPrm6" role="1tU5fm" />
                 </node>
-                <node concept="Rh6nW" id="6iqfHNBPreW" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174p" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6iqfHNBPreX" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174q" role="1tU5fm" />
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               </node>
               <node concept="Xl_RD" id="6iqfHNBPrhL" role="1MDeny">
@@ -3506,7 +3526,7 @@
                         <node concept="10Nm6u" id="3kzwyUOCajC" role="3uHU7w" />
                         <node concept="2OqwBi" id="3kzwyUOCajD" role="3uHU7B">
                           <node concept="37vLTw" id="3kzwyUOCajE" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3kzwyUOCajI" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174r" resolve="it" />
                           </node>
                           <node concept="2Xjw5R" id="3kzwyUOCajF" role="2OqNvi">
                             <node concept="1xMEDy" id="3kzwyUOCajG" role="1xVPHs">
@@ -3519,9 +3539,9 @@
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-                  <node concept="Rh6nW" id="3kzwyUOCajI" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174r" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3kzwyUOCajJ" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174s" role="1tU5fm" />
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@@ -3546,7 +3566,7 @@
                       <node concept="22lmx$" id="3kzwyUOBp53" role="3clFbG">
                         <node concept="2OqwBi" id="3kzwyUOBpdW" role="3uHU7w">
                           <node concept="37vLTw" id="3kzwyUOBp9B" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3kzwyUOBoHL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174t" resolve="it" />
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                           <node concept="1mIQ4w" id="3kzwyUOBplp" role="2OqNvi">
                             <node concept="chp4Y" id="3kzwyUOBppp" role="cj9EA">
@@ -3556,7 +3576,7 @@
                         </node>
                         <node concept="2OqwBi" id="3kzwyUOBoOx" role="3uHU7B">
                           <node concept="37vLTw" id="3kzwyUOBoL0" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3kzwyUOBoHL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174t" resolve="it" />
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                           <node concept="1mIQ4w" id="3kzwyUOBoUd" role="2OqNvi">
                             <node concept="chp4Y" id="3kzwyUOBoYi" role="cj9EA">
@@ -3567,9 +3587,9 @@
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-                  <node concept="Rh6nW" id="3kzwyUOBoHL" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174t" role="1bW2Oz">
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-                    <node concept="2jxLKc" id="3kzwyUOBoHM" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174u" role="1tU5fm" />
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               </node>
@@ -5983,13 +6003,13 @@
                           <ref role="1Pybhc" to="wyt6:~Character" resolve="Character" />
                           <ref role="37wK5l" to="wyt6:~Character.isAlphabetic(int)" resolve="isAlphabetic" />
                           <node concept="37vLTw" id="4iVHBBBBfJn" role="37wK5m">
-                            <ref role="3cqZAo" node="4iVHBBBBf7L" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174v" resolve="it" />
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                         <node concept="3clFbS" id="4iVHBBBBfby" role="3clFbx">
                           <node concept="3cpWs6" id="4iVHBBBBfN7" role="3cqZAp">
                             <node concept="37vLTw" id="4iVHBBBBfQ4" role="3cqZAk">
-                              <ref role="3cqZAo" node="4iVHBBBBf7L" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174v" resolve="it" />
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                           </node>
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@@ -5999,13 +6019,13 @@
                           <ref role="1Pybhc" to="wyt6:~Character" resolve="Character" />
                           <ref role="37wK5l" to="wyt6:~Character.isDigit(char)" resolve="isDigit" />
                           <node concept="37vLTw" id="4iVHBBBBfYI" role="37wK5m">
-                            <ref role="3cqZAo" node="4iVHBBBBf7L" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174v" resolve="it" />
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                         <node concept="3clFbS" id="4iVHBBBBfTX" role="3clFbx">
                           <node concept="3cpWs6" id="4iVHBBBBfTY" role="3cqZAp">
                             <node concept="37vLTw" id="4iVHBBBBfTZ" role="3cqZAk">
-                              <ref role="3cqZAo" node="4iVHBBBBf7L" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174v" resolve="it" />
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@@ -6016,9 +6036,9 @@
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-                    <node concept="Rh6nW" id="4iVHBBBBf7L" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8174v" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
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+                      <node concept="2jxLKc" id="4z0AnX8174w" role="1tU5fm" />
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@@ -6053,7 +6073,7 @@
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                     <node concept="2OqwBi" id="46cplYwxytG" role="3clFbG">
                       <node concept="37vLTw" id="46cplYwxyjd" role="2Oq$k0">
-                        <ref role="3cqZAo" node="46cplYwxybU" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8174x" resolve="it" />
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                       <node concept="2qgKlT" id="46cplYwxyHO" role="2OqNvi">
                         <ref role="37wK5l" node="46cplYwxrWE" resolve="canBeSimplified" />
@@ -6061,9 +6081,9 @@
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+                <node concept="gl6BB" id="4z0AnX8174x" role="1bW2Oz">
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+                  <node concept="2jxLKc" id="4z0AnX8174y" role="1tU5fm" />
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@@ -6096,7 +6116,7 @@
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                       <node concept="2OqwBi" id="46cplYwxFOG" role="3clFbG">
                         <node concept="37vLTw" id="46cplYwxFDk" role="2Oq$k0">
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+                          <ref role="3cqZAo" node="4z0AnX8174z" resolve="it" />
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@@ -6104,9 +6124,9 @@
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@@ -6117,7 +6137,7 @@
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-                        <ref role="3cqZAo" node="46cplYwxBnA" resolve="it" />
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                       <node concept="2qgKlT" id="46cplYwxGdC" role="2OqNvi">
                         <ref role="37wK5l" node="46cplYwxszL" resolve="simplify" />
@@ -6125,9 +6145,9 @@
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                   </node>
                 </node>
-                <node concept="Rh6nW" id="46cplYwxBnA" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174_" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="46cplYwxBnB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174A" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -6552,29 +6572,29 @@
                             <node concept="3clFbF" id="46cplYwP99x" role="3cqZAp">
                               <node concept="2OqwBi" id="46cplYwP9nQ" role="3clFbG">
                                 <node concept="37vLTw" id="46cplYwP99w" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="46cplYwP3Lx" resolve="mine" />
+                                  <ref role="3cqZAo" node="4z0AnX8174D" resolve="mine" />
                                 </node>
                                 <node concept="2qgKlT" id="46cplYwP9NE" role="2OqNvi">
                                   <ref role="37wK5l" node="69zaTr1Z8aS" resolve="isSameAs" />
                                   <node concept="37vLTw" id="46cplYwPa11" role="37wK5m">
-                                    <ref role="3cqZAo" node="46cplYwP8iv" resolve="theirs" />
+                                    <ref role="3cqZAo" node="4z0AnX8174B" resolve="theirs" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="46cplYwP8iv" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8174B" role="1bW2Oz">
                             <property role="TrG5h" value="theirs" />
-                            <node concept="2jxLKc" id="46cplYwP8iw" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8174C" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="46cplYwP3Lx" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174D" role="1bW2Oz">
                   <property role="TrG5h" value="mine" />
-                  <node concept="2jxLKc" id="46cplYwP3Ly" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174E" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -7379,7 +7399,7 @@
                   <node concept="3clFbF" id="12WRc298INQ" role="3cqZAp">
                     <node concept="2OqwBi" id="12WRc298INR" role="3clFbG">
                       <node concept="37vLTw" id="12WRc298INS" role="2Oq$k0">
-                        <ref role="3cqZAo" node="12WRc298INU" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8174F" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="12WRc298INT" role="2OqNvi">
                         <ref role="37wK5l" node="69zaTr1W0u$" resolve="isGeneric" />
@@ -7387,9 +7407,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="12WRc298INU" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174F" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="12WRc298INV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174G" role="1tU5fm" />
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               </node>
             </node>
@@ -7421,7 +7441,7 @@
                         <node concept="10Nm6u" id="18$bUx5HNxa" role="3uHU7w" />
                         <node concept="2OqwBi" id="18$bUx5HMCz" role="3uHU7B">
                           <node concept="37vLTw" id="18$bUx5HMuJ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="12WRc298JBA" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174H" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="18$bUx5HMWE" role="2OqNvi">
                             <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -7432,7 +7452,7 @@
                         <node concept="2OqwBi" id="12WRc298Ktn" role="2Oq$k0">
                           <node concept="2OqwBi" id="12WRc298KhF" role="2Oq$k0">
                             <node concept="37vLTw" id="12WRc298KeD" role="2Oq$k0">
-                              <ref role="3cqZAo" node="12WRc298JBA" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174H" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="12WRc298Kmz" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -7452,9 +7472,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="12WRc298JBA" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174H" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="12WRc298JBB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174I" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -7536,13 +7556,13 @@
                                   <node concept="3clFbF" id="6SpoPQgScYL" role="3cqZAp">
                                     <node concept="2OqwBi" id="6SpoPQgScYM" role="3clFbG">
                                       <node concept="37vLTw" id="6SpoPQgScYN" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="6SpoPQgScYU" resolve="el" />
+                                        <ref role="3cqZAo" node="4z0AnX8174L" resolve="el" />
                                       </node>
                                       <node concept="2qgKlT" id="6SpoPQgScYO" role="2OqNvi">
                                         <ref role="37wK5l" node="69zaTr1Z8aS" resolve="isSameAs" />
                                         <node concept="2OqwBi" id="6SpoPQgScYP" role="37wK5m">
                                           <node concept="37vLTw" id="6SpoPQgScYQ" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="6SpoPQgScYS" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8174J" resolve="it" />
                                           </node>
                                           <node concept="3TrEf2" id="6SpoPQgScYR" role="2OqNvi">
                                             <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -7552,9 +7572,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="6SpoPQgScYS" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8174J" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="6SpoPQgScYT" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8174K" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -7562,9 +7582,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6SpoPQgScYU" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8174L" role="1bW2Oz">
                       <property role="TrG5h" value="el" />
-                      <node concept="2jxLKc" id="6SpoPQgScYV" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8174M" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -7825,9 +7845,7 @@
       </node>
       <node concept="37vLTG" id="ZYPG76w9Y2" role="3clF46">
         <property role="TrG5h" value="expectedType" />
-        <node concept="3Tqbb2" id="ZYPG76w9Y1" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76w9Y1" role="1tU5fm" />
       </node>
       <node concept="37vLTG" id="ZYPG76wazA" role="3clF46">
         <property role="TrG5h" value="actualType" />
@@ -8124,7 +8142,7 @@
                         <node concept="3cpWs3" id="6iqfHNCeTjJ" role="3uHU7B">
                           <node concept="2OqwBi" id="6iqfHNCeT7p" role="3uHU7B">
                             <node concept="37vLTw" id="6iqfHNCeT3V" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6iqfHNCeSWu" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174N" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="6iqfHNCeTcV" role="2OqNvi">
                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -8141,9 +8159,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6iqfHNCeSWu" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174N" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6iqfHNCeSWv" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174O" role="1tU5fm" />
                 </node>
               </node>
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@@ -8247,10 +8265,9 @@
             <node concept="37vLTw" id="5ElQ4ZyUIl" role="37wK5m">
               <ref role="3cqZAo" node="Qsaevo35yg" resolve="context" />
             </node>
-            <node concept="2ShNRf" id="5ElQ4Zz096" role="37wK5m">
-              <node concept="1pGfFk" id="5ElQ4Zz3WU" role="2ShVmc">
-                <ref role="37wK5l" node="7ezRWquAAWk" resolve="DefaultCoverageAnalyzer" />
-              </node>
+            <node concept="2YIFZM" id="7LZDtvhX5pa" role="37wK5m">
+              <ref role="37wK5l" node="7LZDtvhWVCM" resolve="newInstance" />
+              <ref role="1Pybhc" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             </node>
           </node>
         </node>
@@ -8347,8 +8364,8 @@
                     </node>
                   </node>
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-                <node concept="2OwXpG" id="2nydsCfBaNa" role="2OqNvi">
-                  <ref role="2Oxat5" node="7lHetQyBz3x" resolve="value" />
+                <node concept="liA8E" id="7LZDtvhojhg" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhnY37" resolve="getValue" />
                 </node>
               </node>
             </node>
@@ -8411,10 +8428,9 @@
             <node concept="37vLTw" id="5ElQ4ZzcmB" role="37wK5m">
               <ref role="3cqZAo" node="7obiejCzInB" resolve="expr" />
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-            <node concept="2ShNRf" id="5ElQ4ZzdXx" role="37wK5m">
-              <node concept="1pGfFk" id="5ElQ4Zzf4L" role="2ShVmc">
-                <ref role="37wK5l" node="7ezRWquAAWk" resolve="DefaultCoverageAnalyzer" />
-              </node>
+            <node concept="2YIFZM" id="7LZDtvhX5Ju" role="37wK5m">
+              <ref role="37wK5l" node="7LZDtvhWVCM" resolve="newInstance" />
+              <ref role="1Pybhc" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             </node>
           </node>
         </node>
@@ -8516,7 +8532,7 @@
               <node concept="3cpWsn" id="2nydsCf_Wsi" role="3cpWs9">
                 <property role="TrG5h" value="result" />
                 <node concept="3uibUv" id="2nydsCf_MbZ" role="1tU5fm">
-                  <ref role="3uigEE" node="4Pi6J8Cccqb" resolve="ValueAndTraceAndEnv" />
+                  <ref role="3uigEE" node="7LZDtvhtD$G" resolve="IValueAndTraceAndEnv" />
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                 <node concept="2OqwBi" id="2nydsCf_Wsj" role="33vP2m">
                   <node concept="2OqwBi" id="2nydsCf_Wsk" role="2Oq$k0">
@@ -8547,16 +8563,16 @@
                     <node concept="37vLTw" id="7lHetQyBAzA" role="2Oq$k0">
                       <ref role="3cqZAo" node="2nydsCf_Wsi" resolve="result" />
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-                      <ref role="2Oxat5" node="7lHetQyBz3x" resolve="value" />
+                    <node concept="liA8E" id="7LZDtvhojG4" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvhogKJ" resolve="getValue" />
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                   <node concept="2OqwBi" id="2nydsCfA2eu" role="37wK5m">
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                       <ref role="3cqZAo" node="2nydsCf_Wsi" resolve="result" />
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-                    <node concept="2OwXpG" id="2nydsCfA2y9" role="2OqNvi">
-                      <ref role="2Oxat5" node="7lHetQyBz4T" resolve="trace" />
+                    <node concept="liA8E" id="7LZDtvhoklZ" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvhogKU" resolve="getTrace" />
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@@ -8645,10 +8661,9 @@
             <node concept="37vLTw" id="5ElQ4Z$7xl" role="37wK5m">
               <ref role="3cqZAo" node="7p_bE3Jcw0b" resolve="environmentContent" />
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-              <node concept="1pGfFk" id="5zuMBsCJxrk" role="2ShVmc">
-                <ref role="37wK5l" node="7ezRWquAAWk" resolve="DefaultCoverageAnalyzer" />
-              </node>
+            <node concept="2YIFZM" id="7LZDtvhX66K" role="37wK5m">
+              <ref role="37wK5l" node="7LZDtvhWVCM" resolve="newInstance" />
+              <ref role="1Pybhc" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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           </node>
         </node>
@@ -8871,10 +8886,9 @@
             <node concept="37vLTw" id="5ElQ4Z$mES" role="37wK5m">
               <ref role="3cqZAo" node="4945UtStyGC" resolve="expr" />
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-              <node concept="1pGfFk" id="2ns1RQRNMXI" role="2ShVmc">
-                <ref role="37wK5l" node="7ezRWquAAWk" resolve="DefaultCoverageAnalyzer" />
-              </node>
+            <node concept="2YIFZM" id="7LZDtvhX6vC" role="37wK5m">
+              <ref role="37wK5l" node="7LZDtvhWVCM" resolve="newInstance" />
+              <ref role="1Pybhc" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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           </node>
         </node>
@@ -8986,8 +9000,8 @@
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-                <node concept="2OwXpG" id="2nydsCfB5F1" role="2OqNvi">
-                  <ref role="2Oxat5" node="7lHetQyBz3x" resolve="value" />
+                <node concept="liA8E" id="7LZDtvhokGo" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhnY37" resolve="getValue" />
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@@ -9989,7 +10003,7 @@
                     <node concept="3clFbF" id="7S4tmubFocB" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubFoqU" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubFocA" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubFo3g" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8174P" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubFoD9" role="2OqNvi">
                           <ref role="37wK5l" node="4Y0vh0cfqjE" resolve="renderReadable" />
@@ -9997,9 +10011,9 @@
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-                  <node concept="Rh6nW" id="7S4tmubFo3g" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8174P" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubFo3h" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8174Q" role="1tU5fm" />
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@@ -10196,7 +10210,7 @@
                         <node concept="3clFbF" id="6ovbtsiVf4Z" role="3cqZAp">
                           <node concept="2OqwBi" id="6ovbtsiVf8F" role="3clFbG">
                             <node concept="37vLTw" id="6ovbtsiVf4Y" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6ovbtsiVf2J" resolve="it" />
+                              <ref role="3cqZAo" node="EsIH9l2tje" resolve="it" />
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                             <node concept="2qgKlT" id="6ovbtsiVfhh" role="2OqNvi">
                               <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -10204,9 +10218,9 @@
                           </node>
                         </node>
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-                      <node concept="Rh6nW" id="6ovbtsiVf2J" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l2tje" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6ovbtsiVf2K" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l2tjf" role="1tU5fm" />
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@@ -10349,7 +10363,7 @@
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                       <node concept="2OqwBi" id="5L2mTKmBlgS" role="3clFbG">
                         <node concept="37vLTw" id="5L2mTKmBl3I" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5L2mTKmBkSp" resolve="it" />
+                          <ref role="3cqZAo" node="EsIH9l2tjg" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="5L2mTKmBlCy" role="2OqNvi">
                           <ref role="37wK5l" node="fIXgjlt4VE" resolve="isSameAs" />
@@ -10365,7 +10379,7 @@
                             <node concept="34jXtK" id="5L2mTKmBrKD" role="2OqNvi">
                               <node concept="2OqwBi" id="5L2mTKmBsce" role="25WWJ7">
                                 <node concept="37vLTw" id="5L2mTKmBrZs" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5L2mTKmBkSp" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l2tjg" resolve="it" />
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                                 <node concept="2bSWHS" id="5L2mTKmBsGv" role="2OqNvi" />
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@@ -10375,9 +10389,9 @@
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-                  <node concept="Rh6nW" id="5L2mTKmBkSp" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l2tjg" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5L2mTKmBkSq" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l2tjh" role="1tU5fm" />
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@@ -10686,7 +10700,7 @@
                             <ref role="cht4Q" to="hm2y:aPhVmWYjmk" resolve="ICanBeLValue" />
                           </node>
                           <node concept="37vLTw" id="7b6J31DlyQw" role="1m5AlR">
-                            <ref role="3cqZAo" node="7b6J31Dlxkp" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8174V" resolve="it" />
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                         <node concept="2qgKlT" id="7b6J31Dl_1D" role="2OqNvi">
@@ -10695,7 +10709,7 @@
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                         <node concept="37vLTw" id="7b6J31Dlxkw" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7b6J31Dlxkp" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8174V" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="7b6J31Dlyaj" role="2OqNvi">
                           <node concept="chp4Y" id="7b6J31DlykY" role="cj9EA">
@@ -10706,9 +10720,9 @@
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-                <node concept="Rh6nW" id="7b6J31Dlxkp" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8174V" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7b6J31Dlxkq" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8174W" role="1tU5fm" />
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@@ -10886,7 +10900,7 @@
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                       <node concept="2OqwBi" id="3kzwyUOCVGN" role="37wK5m">
                         <node concept="37vLTw" id="3kzwyUOCVBC" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1OStjV1GqcN" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8174X" resolve="it" />
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@@ -10895,9 +10909,9 @@
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@@ -10963,7 +10977,7 @@
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-                              <ref role="3cqZAo" node="71dSyJVqNil" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8174Z" resolve="it" />
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@@ -10973,9 +10987,9 @@
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@@ -11129,7 +11143,7 @@
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-                            <ref role="3cqZAo" node="71dSyJVqLn1" resolve="it" />
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@@ -11138,9 +11152,9 @@
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@@ -11499,7 +11513,7 @@
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-                            <ref role="3cqZAo" node="21vB0Vz3IOL" resolve="it" />
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@@ -11516,7 +11530,7 @@
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-                            <ref role="3cqZAo" node="21vB0Vz3IOL" resolve="it" />
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@@ -11531,9 +11545,9 @@
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@@ -11938,7 +11952,7 @@
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-                                  <ref role="3cqZAo" node="5fy$GmV7Ari" resolve="alternative" />
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-                        <ref role="3cqZAo" node="5fy$GmV7Ari" resolve="alternative" />
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@@ -11970,9 +11984,9 @@
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-                            <ref role="3cqZAo" node="4j3DGEk4mLM" resolve="it" />
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@@ -12121,9 +12135,9 @@
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-                            <ref role="3cqZAo" node="4j3DGEk4mM8" resolve="it" />
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-                            <ref role="3cqZAo" node="4j3DGEk4mM8" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX81759" resolve="it" />
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@@ -13877,15 +13891,15 @@
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-                              <ref role="3cqZAo" node="ucawTYeNHU" resolve="it" />
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+                        <node concept="2jxLKc" id="4z0AnX8175c" role="1tU5fm" />
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@@ -15241,6047 +15255,5264 @@
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+          <node concept="1dT_AC" id="1996aX6uZjB" role="1dT_Ay">
+            <property role="1dT_AB" value="protect the verification engine from bugs in the type system." />
           </node>
         </node>
+        <node concept="x79VA" id="1996aX6uZi4" role="3nqlJM">
+          <property role="x79VB" value="true, when the type returned by getVariableType() is inferred, false if it was declared by the user." />
+        </node>
       </node>
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+  <node concept="13h7C7" id="5GL30CqMVFl">
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+    <ref role="13h7C2" to="hm2y:5GL30CqMVEW" resolve="ISSConstrainedValueRef" />
+    <node concept="13i0hz" id="5GL30CqMVFo" role="13h7CS">
+      <property role="13i0iv" value="true" />
+      <property role="13i0it" value="true" />
+      <property role="TrG5h" value="getISSVariable" />
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+    <node concept="13i0hz" id="14gxgpJfXC0" role="13h7CS">
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+      <property role="13i0it" value="true" />
+      <property role="TrG5h" value="shouldBeSubstituted" />
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+    <node concept="13hLZK" id="5GL30CqMVFm" role="13h7CW">
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+    <node concept="13i0hz" id="69JueU2Zy7c" role="13h7CS">
+      <property role="13i0iv" value="true" />
+      <property role="13i0it" value="true" />
+      <property role="TrG5h" value="effectiveType" />
+      <node concept="3Tm1VV" id="69JueU2Zy7d" role="1B3o_S" />
+      <node concept="3Tqbb2" id="69JueU2Zy7S" role="3clF45">
+        <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
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+      <node concept="P$JXv" id="69JueU2ZCG2" role="lGtFl">
+        <node concept="x79VA" id="69JueU2ZCG5" role="3nqlJM">
+          <property role="x79VB" value="the resolved effectiveType (which should NOT be delegating!)." />
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+        <node concept="TZ5HA" id="69JueU2ZCG3" role="TZ5H$">
+          <node concept="1dT_AC" id="69JueU2ZCG4" role="1dT_Ay">
+            <property role="1dT_AB" value="When implementing ISSDelegatingType it MUST be ensured that delegation is non-cyclic." />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="69JueU2ZCTe" role="TZ5H$">
+          <node concept="1dT_AC" id="69JueU2ZCTf" role="1dT_Ay">
+            <property role="1dT_AB" value="This allows following the delegation links recursively to resolve the effectiveType." />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="13hLZK" id="69JueU2Zy72" role="13h7CW">
+      <node concept="3clFbS" id="69JueU2Zy73" role="2VODD2" />
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+  </node>
+  <node concept="13h7C7" id="5L2mTKmAIvO">
+    <property role="3GE5qa" value="error.types" />
+    <ref role="13h7C2" to="hm2y:1Ez$z58L7Ek" resolve="SuccessType" />
+    <node concept="13hLZK" id="5L2mTKmAIvP" role="13h7CW">
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+    <node concept="13i0hz" id="5L2mTKmAVys" role="13h7CS">
+      <property role="TrG5h" value="isSameAs" />
+      <property role="13i0it" value="false" />
+      <property role="13i0iv" value="false" />
+      <ref role="13i0hy" node="fIXgjlt4VE" resolve="isSameAs" />
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+              <node concept="3clFbT" id="5L2mTKmAVyy" role="3cqZAk">
+                <property role="3clFbU" value="false" />
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+          <node concept="3clFbC" id="5L2mTKmAVyz" role="3clFbw">
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+        <node concept="3clFbJ" id="5L2mTKmAVyA" role="3cqZAp">
+          <node concept="3clFbS" id="5L2mTKmAVyB" role="3clFbx">
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+              <node concept="3clFbT" id="5L2mTKmAVyD" role="3cqZAk">
+                <property role="3clFbU" value="false" />
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+          <node concept="3fqX7Q" id="5L2mTKmAVyE" role="3clFbw">
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+                <node concept="37vLTw" id="5L2mTKmAVyH" role="2Oq$k0">
+                  <ref role="3cqZAo" node="5L2mTKmAVz2" resolve="other" />
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-                      <ref role="cht4Q" to="hm2y:6sdnDbSla17" resolve="Expression" />
-                    </node>
+                <node concept="1mIQ4w" id="5L2mTKmAVyI" role="2OqNvi">
+                  <node concept="chp4Y" id="5L2mTKmAVWR" role="cj9EA">
+                    <ref role="cht4Q" to="hm2y:1Ez$z58L7Ek" resolve="SuccessType" />
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-                <node concept="1VAtEI" id="7zqxZ9Kklc4" role="2OqNvi" />
+        <node concept="3cpWs8" id="5L2mTKmAVyK" role="3cqZAp">
+          <node concept="3cpWsn" id="5L2mTKmAVyL" role="3cpWs9">
+            <property role="TrG5h" value="casted" />
+            <node concept="3Tqbb2" id="5L2mTKmAVyM" role="1tU5fm">
+              <ref role="ehGHo" to="hm2y:1Ez$z58L7Ek" resolve="SuccessType" />
+            </node>
+            <node concept="1PxgMI" id="5L2mTKmAVyN" role="33vP2m">
+              <node concept="chp4Y" id="6b_jefnKxAb" role="3oSUPX">
+                <ref role="cht4Q" to="hm2y:1Ez$z58L7Ek" resolve="SuccessType" />
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+              <node concept="37vLTw" id="5L2mTKmAVyO" role="1m5AlR">
+                <ref role="3cqZAo" node="5L2mTKmAVz2" resolve="other" />
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-                <ref role="37wK5l" node="7zqxZ9Kk51B" resolve="depth" />
+        <node concept="3clFbF" id="5L2mTKmAW$k" role="3cqZAp">
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+              <node concept="3TrEf2" id="5L2mTKmAXaL" role="2OqNvi">
+                <ref role="3Tt5mk" to="hm2y:1Ez$z58L7El" resolve="baseType" />
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-                <ref role="37wK5l" node="7zqxZ9KkaYF" resolve="heterogeneity" />
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+            <node concept="2qgKlT" id="5L2mTKmAXSo" role="2OqNvi">
+              <ref role="37wK5l" node="fIXgjlt4VE" resolve="isSameAs" />
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+                  <ref role="3cqZAo" node="5L2mTKmAVyL" resolve="casted" />
+                </node>
+                <node concept="3TrEf2" id="5L2mTKmAYsr" role="2OqNvi">
+                  <ref role="3Tt5mk" to="hm2y:1Ez$z58L7El" resolve="baseType" />
+                </node>
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+      <node concept="37vLTG" id="5L2mTKmAVz2" role="3clF46">
+        <property role="TrG5h" value="other" />
+        <node concept="3Tqbb2" id="5L2mTKmAVz3" role="1tU5fm">
+          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
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-                          <node concept="2jxLKc" id="58jTitRq2ZQ" role="1tU5fm" />
+                      </node>
+                      <node concept="3clFbF" id="5IR_boHRAcK" role="3cqZAp">
+                        <node concept="2OqwBi" id="5IR_boHRAuR" role="3clFbG">
+                          <node concept="37vLTw" id="5IR_boHRAcI" role="2Oq$k0">
+                            <ref role="3cqZAo" node="5IR_boHR_I8" resolve="trace" />
+                          </node>
+                          <node concept="liA8E" id="5IR_boHRASz" role="2OqNvi">
+                            <ref role="37wK5l" to="2ahs:5IR_boHQAxv" resolve="setRerunner" />
+                            <node concept="Xjq3P" id="5IR_boHS7zJ" role="37wK5m" />
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3cpWs6" id="5IR_boHRnMO" role="3cqZAp">
+                        <node concept="37vLTw" id="5IR_boHR_Ic" role="3cqZAk">
+                          <ref role="3cqZAo" node="5IR_boHR_I8" resolve="trace" />
                         </node>
                       </node>
                     </node>
@@ -21291,5542 +20522,7974 @@
             </node>
           </node>
         </node>
+        <node concept="3cpWs6" id="5IR_boHRtPV" role="3cqZAp">
+          <node concept="2OqwBi" id="5IR_boHRsCT" role="3cqZAk">
+            <node concept="37vLTw" id="5IR_boHRsCU" role="2Oq$k0">
+              <ref role="3cqZAo" node="5IR_boHRmeg" resolve="runner" />
+            </node>
+            <node concept="liA8E" id="5IR_boHRsCV" role="2OqNvi">
+              <ref role="37wK5l" to="pu3r:5IR_boHPZTv" resolve="rerun" />
+            </node>
+          </node>
+        </node>
       </node>
-      <node concept="2tJIrI" id="4XlPKepacZz" role="jymVt" />
-      <node concept="3clFb_" id="7zqxZ9Km0zV" role="jymVt">
-        <property role="TrG5h" value="statsString" />
-        <node concept="17QB3L" id="7zqxZ9Kmi_T" role="3clF45" />
-        <node concept="3Tm1VV" id="7zqxZ9Km0zY" role="1B3o_S" />
-        <node concept="3clFbS" id="7zqxZ9Km0zZ" role="3clF47">
-          <node concept="3clFbF" id="7zqxZ9KmaU2" role="3cqZAp">
-            <node concept="3cpWs3" id="7zqxZ9Kmhpr" role="3clFbG">
-              <node concept="2OqwBi" id="7zqxZ9KmhRj" role="3uHU7w">
-                <node concept="Xjq3P" id="7zqxZ9Kmhtl" role="2Oq$k0" />
-                <node concept="liA8E" id="7zqxZ9Kmih2" role="2OqNvi">
-                  <ref role="37wK5l" node="7zqxZ9KluoX" resolve="maximumHeterogeneity" />
-                </node>
+    </node>
+    <node concept="13hLZK" id="7obiejCh8Rt" role="13h7CW">
+      <node concept="3clFbS" id="7obiejCh8Ru" role="2VODD2" />
+    </node>
+  </node>
+  <node concept="13h7C7" id="4hW8Ne0ns2Z">
+    <ref role="13h7C2" to="hm2y:4hW8Ne0bQYm" resolve="Revealer" />
+    <node concept="13hLZK" id="4hW8Ne0ns30" role="13h7CW">
+      <node concept="3clFbS" id="4hW8Ne0ns31" role="2VODD2">
+        <node concept="3clFbF" id="7RXj7bkZR3O" role="3cqZAp">
+          <node concept="2OqwBi" id="7RXj7bkZRN_" role="3clFbG">
+            <node concept="2OqwBi" id="7RXj7bkZRea" role="2Oq$k0">
+              <node concept="13iPFW" id="7RXj7bkZR3N" role="2Oq$k0" />
+              <node concept="3TrEf2" id="7RXj7bkZRuN" role="2OqNvi">
+                <ref role="3Tt5mk" to="hm2y:4hW8Ne0bR4I" resolve="condition" />
               </node>
-              <node concept="3cpWs3" id="7zqxZ9KmfQo" role="3uHU7B">
-                <node concept="3cpWs3" id="7zqxZ9KmdPY" role="3uHU7B">
-                  <node concept="3cpWs3" id="7zqxZ9Kmd0d" role="3uHU7B">
-                    <node concept="3cpWs3" id="3MHhZL0swcZ" role="3uHU7B">
-                      <node concept="3cpWs3" id="3MHhZL0szOQ" role="3uHU7B">
-                        <node concept="Xl_RD" id="3MHhZL0s$2s" role="3uHU7w">
-                          <property role="Xl_RC" value=", V=" />
-                        </node>
-                        <node concept="3cpWs3" id="3MHhZL0s_fV" role="3uHU7B">
-                          <node concept="Xl_RD" id="3MHhZL0s_js" role="3uHU7B">
-                            <property role="Xl_RC" value="N=" />
+            </node>
+            <node concept="2oxUTD" id="7RXj7bkZTzi" role="2OqNvi">
+              <node concept="2YIFZM" id="7RXj7bkZTVm" role="2oxUTC">
+                <ref role="37wK5l" to="xfg9:35CkgbLlhBJ" resolve="createTrueLiteral" />
+                <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="13i0hz" id="4hW8Ne0ns4c" role="13h7CS">
+      <property role="13i0iv" value="false" />
+      <property role="13i0it" value="false" />
+      <property role="TrG5h" value="mustBeRevealed" />
+      <ref role="13i0hy" to="kqnq:4hW8Ne0aLJi" resolve="mustBeRevealed" />
+      <node concept="3Tm1VV" id="4hW8Ne0ns4d" role="1B3o_S" />
+      <node concept="3clFbS" id="4hW8Ne0ns4i" role="3clF47">
+        <node concept="3clFbF" id="4hW8Ne0nsLf" role="3cqZAp">
+          <node concept="1Wc70l" id="4hW8Ne0ntxq" role="3clFbG">
+            <node concept="2OqwBi" id="4hW8Ne0ntUQ" role="3uHU7w">
+              <node concept="1eOMI4" id="4hW8Ne0nt$D" role="2Oq$k0">
+                <node concept="10QFUN" id="4hW8Ne0nt$C" role="1eOMHV">
+                  <node concept="37vLTw" id="4hW8Ne0nt$B" role="10QFUP">
+                    <ref role="3cqZAo" node="4hW8Ne0ns4j" resolve="conditionValue" />
+                  </node>
+                  <node concept="3uibUv" id="4hW8Ne0ntCF" role="10QFUM">
+                    <ref role="3uigEE" to="wyt6:~Boolean" resolve="Boolean" />
+                  </node>
+                </node>
+              </node>
+              <node concept="liA8E" id="4hW8Ne0nua5" role="2OqNvi">
+                <ref role="37wK5l" to="wyt6:~Boolean.booleanValue()" resolve="booleanValue" />
+              </node>
+            </node>
+            <node concept="2ZW3vV" id="4hW8Ne0nsXs" role="3uHU7B">
+              <node concept="3uibUv" id="4hW8Ne0nsZ8" role="2ZW6by">
+                <ref role="3uigEE" to="wyt6:~Boolean" resolve="Boolean" />
+              </node>
+              <node concept="37vLTw" id="4hW8Ne0nsLd" role="2ZW6bz">
+                <ref role="3cqZAo" node="4hW8Ne0ns4j" resolve="conditionValue" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="4hW8Ne0ns4j" role="3clF46">
+        <property role="TrG5h" value="conditionValue" />
+        <node concept="3uibUv" id="4hW8Ne0ns4k" role="1tU5fm">
+          <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+        </node>
+      </node>
+      <node concept="10P_77" id="4hW8Ne0ns4l" role="3clF45" />
+    </node>
+    <node concept="13i0hz" id="4hW8Ne0ns4o" role="13h7CS">
+      <property role="13i0iv" value="false" />
+      <property role="13i0it" value="false" />
+      <property role="TrG5h" value="getTheNodeToEvalute" />
+      <ref role="13i0hy" to="kqnq:4hW8Ne0mTH4" resolve="getTheNodeToEvalute" />
+      <node concept="3Tm1VV" id="4hW8Ne0ns4p" role="1B3o_S" />
+      <node concept="3clFbS" id="4hW8Ne0ns4s" role="3clF47">
+        <node concept="3clFbF" id="4hW8Ne0ns8H" role="3cqZAp">
+          <node concept="2OqwBi" id="4hW8Ne0nshO" role="3clFbG">
+            <node concept="13iPFW" id="4hW8Ne0ns8G" role="2Oq$k0" />
+            <node concept="3TrEf2" id="4hW8Ne0nsrM" role="2OqNvi">
+              <ref role="3Tt5mk" to="hm2y:4hW8Ne0bR4I" resolve="condition" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tqbb2" id="4hW8Ne0ns4t" role="3clF45" />
+    </node>
+  </node>
+  <node concept="13h7C7" id="YcTL0u_DQ">
+    <ref role="13h7C2" to="hm2y:6JZACDWQJu4" resolve="ILiteral" />
+    <node concept="13hLZK" id="YcTL0u_DR" role="13h7CW">
+      <node concept="3clFbS" id="YcTL0u_DS" role="2VODD2" />
+    </node>
+    <node concept="13i0hz" id="3T40JVg5CfF" role="13h7CS">
+      <property role="13i0iv" value="false" />
+      <property role="13i0it" value="false" />
+      <property role="TrG5h" value="isTrivial" />
+      <ref role="13i0hy" to="kqnq:3T40JVg3mh$" resolve="isTrivial" />
+      <node concept="3Tm1VV" id="3T40JVg5CfG" role="1B3o_S" />
+      <node concept="3clFbS" id="3T40JVg5CfL" role="3clF47">
+        <node concept="3clFbF" id="YcTL0u_Kw" role="3cqZAp">
+          <node concept="2OqwBi" id="YcTL0uBAo" role="3clFbG">
+            <node concept="2OqwBi" id="YcTL0u_SX" role="2Oq$k0">
+              <node concept="13iPFW" id="YcTL0u_Kt" role="2Oq$k0" />
+              <node concept="2Rf3mk" id="YcTL0u_YQ" role="2OqNvi" />
+            </node>
+            <node concept="2HxqBE" id="YcTL0uCyy" role="2OqNvi">
+              <node concept="1bVj0M" id="YcTL0uCy$" role="23t8la">
+                <node concept="3clFbS" id="YcTL0uCy_" role="1bW5cS">
+                  <node concept="3clFbF" id="YcTL0uCDB" role="3cqZAp">
+                    <node concept="1Wc70l" id="YcTL0uDCn" role="3clFbG">
+                      <node concept="2OqwBi" id="YcTL0uEsw" role="3uHU7w">
+                        <node concept="1PxgMI" id="YcTL0uE4R" role="2Oq$k0">
+                          <node concept="chp4Y" id="YcTL0uEhP" role="3oSUPX">
+                            <ref role="cht4Q" to="hm2y:6JZACDWQJu4" resolve="ILiteral" />
                           </node>
-                          <node concept="1rXfSq" id="3MHhZL0uyig" role="3uHU7w">
-                            <ref role="37wK5l" node="3MHhZL0uyid" resolve="testCount" />
+                          <node concept="37vLTw" id="YcTL0uDGT" role="1m5AlR">
+                            <ref role="3cqZAo" node="4z0AnX8176f" resolve="it" />
                           </node>
                         </node>
+                        <node concept="2qgKlT" id="3T40JVg5CS$" role="2OqNvi">
+                          <ref role="37wK5l" to="kqnq:3T40JVg3mh$" resolve="isTrivial" />
+                        </node>
                       </node>
-                      <node concept="2OqwBi" id="7zqxZ9Kmb1G" role="3uHU7w">
-                        <node concept="Xjq3P" id="7zqxZ9KmaU1" role="2Oq$k0" />
-                        <node concept="liA8E" id="7zqxZ9KmcsQ" role="2OqNvi">
-                          <ref role="37wK5l" node="7zqxZ9KlDr8" resolve="testVolume" />
+                      <node concept="2OqwBi" id="YcTL0uCOb" role="3uHU7B">
+                        <node concept="37vLTw" id="YcTL0uCDA" role="2Oq$k0">
+                          <ref role="3cqZAo" node="4z0AnX8176f" resolve="it" />
+                        </node>
+                        <node concept="1mIQ4w" id="YcTL0uCUD" role="2OqNvi">
+                          <node concept="chp4Y" id="YcTL0uD2c" role="cj9EA">
+                            <ref role="cht4Q" to="hm2y:6JZACDWQJu4" resolve="ILiteral" />
+                          </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Xl_RD" id="7zqxZ9Kmd3I" role="3uHU7w">
-                      <property role="Xl_RC" value=" H=" />
-                    </node>
                   </node>
-                  <node concept="2OqwBi" id="7zqxZ9KmeEa" role="3uHU7w">
-                    <node concept="Xjq3P" id="7zqxZ9KmegK" role="2Oq$k0" />
-                    <node concept="liA8E" id="7zqxZ9Kmf1l" role="2OqNvi">
-                      <ref role="37wK5l" node="7zqxZ9Kl7HS" resolve="minimumHeterogeneity" />
-                    </node>
+                </node>
+                <node concept="gl6BB" id="4z0AnX8176f" role="1bW2Oz">
+                  <property role="TrG5h" value="it" />
+                  <node concept="2jxLKc" id="4z0AnX8176g" role="1tU5fm" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="10P_77" id="3T40JVg5CfM" role="3clF45" />
+    </node>
+  </node>
+  <node concept="312cEu" id="5syY_AL6TM5">
+    <property role="TrG5h" value="NodeAndTrace" />
+    <node concept="2tJIrI" id="5syY_AL6TM6" role="jymVt" />
+    <node concept="312cEg" id="5syY_AL6TM7" role="jymVt">
+      <property role="TrG5h" value="node" />
+      <property role="3TUv4t" value="true" />
+      <node concept="3Tm1VV" id="5syY_AL6TM8" role="1B3o_S" />
+      <node concept="3Tqbb2" id="5syY_AL6TUY" role="1tU5fm" />
+    </node>
+    <node concept="312cEg" id="5syY_AL6TMa" role="jymVt">
+      <property role="TrG5h" value="trace" />
+      <property role="3TUv4t" value="true" />
+      <node concept="3Tm1VV" id="5syY_AL6TMb" role="1B3o_S" />
+      <node concept="3uibUv" id="5syY_AL6TMc" role="1tU5fm">
+        <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="5syY_AL6TMd" role="jymVt" />
+    <node concept="3clFbW" id="5syY_AL6TMe" role="jymVt">
+      <node concept="3cqZAl" id="5syY_AL6TMf" role="3clF45" />
+      <node concept="3Tm1VV" id="5syY_AL6TMg" role="1B3o_S" />
+      <node concept="3clFbS" id="5syY_AL6TMh" role="3clF47">
+        <node concept="3clFbF" id="5syY_AL6TMi" role="3cqZAp">
+          <node concept="37vLTI" id="5syY_AL6TMj" role="3clFbG">
+            <node concept="37vLTw" id="5syY_AL6TMk" role="37vLTJ">
+              <ref role="3cqZAo" node="5syY_AL6TM7" resolve="node" />
+            </node>
+            <node concept="37vLTw" id="5syY_AL6TMl" role="37vLTx">
+              <ref role="3cqZAo" node="5syY_AL6TMq" resolve="n" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="5syY_AL6TMm" role="3cqZAp">
+          <node concept="37vLTI" id="5syY_AL6TMn" role="3clFbG">
+            <node concept="37vLTw" id="5syY_AL6TMo" role="37vLTJ">
+              <ref role="3cqZAo" node="5syY_AL6TMa" resolve="trace" />
+            </node>
+            <node concept="37vLTw" id="5syY_AL6TMp" role="37vLTx">
+              <ref role="3cqZAo" node="5syY_AL6TMs" resolve="t" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="5syY_AL6TMq" role="3clF46">
+        <property role="TrG5h" value="n" />
+        <node concept="3Tqbb2" id="5syY_AL6U0V" role="1tU5fm" />
+      </node>
+      <node concept="37vLTG" id="5syY_AL6TMs" role="3clF46">
+        <property role="TrG5h" value="t" />
+        <node concept="3uibUv" id="5syY_AL6TMt" role="1tU5fm">
+          <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="5syY_AL6TMu" role="jymVt" />
+    <node concept="3Tm1VV" id="5syY_AL6TMv" role="1B3o_S" />
+  </node>
+  <node concept="312cEu" id="7lHetQyBI3r">
+    <property role="TrG5h" value="ValueAndTrace" />
+    <node concept="2tJIrI" id="7lHetQyBI3D" role="jymVt" />
+    <node concept="312cEg" id="7lHetQyBz3x" role="jymVt">
+      <property role="TrG5h" value="value" />
+      <property role="3TUv4t" value="true" />
+      <node concept="3Tm1VV" id="7lHetQyBzvo" role="1B3o_S" />
+      <node concept="3uibUv" id="7lHetQyBz3$" role="1tU5fm">
+        <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvhnYvd" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
+      <node concept="z59LJ" id="7LZDtvhnYva" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvhnYvb" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvhnYvc" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvhnYBi" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvhnYBk" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvhnYBm" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvhnYBo" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvhobwK" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvhnY37" resolve="getValue" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvhnYBj" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="7LZDtvhobyL" role="jymVt" />
+    <node concept="312cEg" id="7lHetQyBz4T" role="jymVt">
+      <property role="TrG5h" value="trace" />
+      <property role="3TUv4t" value="true" />
+      <node concept="3Tm1VV" id="7lHetQyBztA" role="1B3o_S" />
+      <node concept="3uibUv" id="7lHetQyBz4W" role="1tU5fm">
+        <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvhobJY" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
+      <node concept="z59LJ" id="7LZDtvhobJV" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvhobJW" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvhobJX" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvhobRJ" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvhobRL" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvhobRN" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvhobRP" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvhobRT" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvhnY3r" resolve="getTrace" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvhobRK" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="7lHetQyBI6r" role="jymVt" />
+    <node concept="3clFbW" id="7lHetQyByYS" role="jymVt">
+      <node concept="3cqZAl" id="7lHetQyByYU" role="3clF45" />
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+    <node concept="13i0hz" id="4CksDrmwc2x" role="13h7CS">
+      <property role="TrG5h" value="build" />
+      <property role="13i0it" value="true" />
+      <property role="13i0iv" value="false" />
+      <node concept="3Tm1VV" id="4CksDrmwc2y" role="1B3o_S" />
+      <node concept="3Tqbb2" id="4CksDrmwcbq" role="3clF45">
+        <ref role="ehGHo" to="hm2y:6sdnDbSla17" resolve="Expression" />
+      </node>
+      <node concept="3clFbS" id="4CksDrmwc2$" role="3clF47">
+        <node concept="3clFbJ" id="4CksDrmwfmB" role="3cqZAp">
+          <node concept="3clFbC" id="4CksDrmwfmC" role="3clFbw">
+            <node concept="10Nm6u" id="4CksDrmwfmD" role="3uHU7w" />
+            <node concept="37vLTw" id="4CksDrmwfmE" role="3uHU7B">
+              <ref role="3cqZAo" node="4CksDrmwccw" resolve="right" />
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-        </node>
-        <node concept="TZ5HA" id="1996aX6uZiE" role="TZ5H$">
-          <node concept="1dT_AC" id="1996aX6uZiF" role="1dT_Ay">
-            <property role="1dT_AB" value="inferred automatically by the Type System. This is a precaution necessary to" />
+          <node concept="3clFbS" id="4CksDrmwfmF" role="3clFbx">
+            <node concept="3cpWs6" id="4CksDrmwfmG" role="3cqZAp">
+              <node concept="2OqwBi" id="4CksDrmwfmH" role="3cqZAk">
+                <node concept="37vLTw" id="4CksDrmwfmI" role="2Oq$k0">
+                  <ref role="3cqZAo" node="4CksDrmwcbY" resolve="left" />
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+                <node concept="1$rogu" id="4CksDrmwfmJ" role="2OqNvi" />
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-        <node concept="TZ5HA" id="1996aX6uZjA" role="TZ5H$">
-          <node concept="1dT_AC" id="1996aX6uZjB" role="1dT_Ay">
-            <property role="1dT_AB" value="protect the verification engine from bugs in the type system." />
+          <node concept="9aQIb" id="4CksDrmwfmK" role="9aQIa">
+            <node concept="3clFbS" id="4CksDrmwfmL" role="9aQI4">
+              <node concept="3cpWs8" id="4CksDrmwrcp" role="3cqZAp">
+                <node concept="3cpWsn" id="4CksDrmwrcq" role="3cpWs9">
+                  <property role="TrG5h" value="op" />
+                  <node concept="3Tqbb2" id="4CksDrmwrco" role="1tU5fm">
+                    <ref role="ehGHo" to="hm2y:4rZeNQ6MpKl" resolve="BinaryExpression" />
+                  </node>
+                  <node concept="BsUDl" id="4CksDrmwrcr" role="33vP2m">
+                    <ref role="37wK5l" node="4CksDrmwfht" resolve="buildOperator" />
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+              <node concept="3clFbF" id="4CksDrmwroY" role="3cqZAp">
+                <node concept="37vLTI" id="4CksDrmwsr8" role="3clFbG">
+                  <node concept="2OqwBi" id="4CksDrmwsCn" role="37vLTx">
+                    <node concept="37vLTw" id="4CksDrmwstE" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4CksDrmwcbY" resolve="left" />
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+                    <node concept="1$rogu" id="4CksDrmwsQl" role="2OqNvi" />
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+                  <node concept="2OqwBi" id="4CksDrmwrAy" role="37vLTJ">
+                    <node concept="37vLTw" id="4CksDrmwroW" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4CksDrmwrcq" resolve="op" />
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+                    <node concept="3TrEf2" id="4CksDrmwrVC" role="2OqNvi">
+                      <ref role="3Tt5mk" to="hm2y:4rZeNQ6MpKm" resolve="left" />
+                    </node>
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+              <node concept="3clFbF" id="4CksDrmwsWM" role="3cqZAp">
+                <node concept="37vLTI" id="4CksDrmwu20" role="3clFbG">
+                  <node concept="2OqwBi" id="4CksDrmwuka" role="37vLTx">
+                    <node concept="37vLTw" id="4CksDrmwu9t" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4CksDrmwccw" resolve="right" />
+                    </node>
+                    <node concept="1$rogu" id="4CksDrmwu_9" role="2OqNvi" />
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+                  <node concept="2OqwBi" id="4CksDrmwtaJ" role="37vLTJ">
+                    <node concept="37vLTw" id="4CksDrmwsWK" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4CksDrmwrcq" resolve="op" />
+                    </node>
+                    <node concept="3TrEf2" id="4CksDrmwtyw" role="2OqNvi">
+                      <ref role="3Tt5mk" to="hm2y:4rZeNQ6MpKo" resolve="right" />
+                    </node>
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+              <node concept="3cpWs6" id="4CksDrmwuL$" role="3cqZAp">
+                <node concept="37vLTw" id="4CksDrmwuSE" role="3cqZAk">
+                  <ref role="3cqZAo" node="4CksDrmwrcq" resolve="op" />
+                </node>
+              </node>
+            </node>
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         </node>
-        <node concept="x79VA" id="1996aX6uZi4" role="3nqlJM">
-          <property role="x79VB" value="true, when the type returned by getVariableType() is inferred, false if it was declared by the user." />
+      </node>
+      <node concept="37vLTG" id="4CksDrmwcbY" role="3clF46">
+        <property role="TrG5h" value="left" />
+        <node concept="3Tqbb2" id="4CksDrmwcbX" role="1tU5fm">
+          <ref role="ehGHo" to="hm2y:6sdnDbSla17" resolve="Expression" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="4CksDrmwccw" role="3clF46">
+        <property role="TrG5h" value="right" />
+        <node concept="3Tqbb2" id="4CksDrmwccx" role="1tU5fm">
+          <ref role="ehGHo" to="hm2y:6sdnDbSla17" resolve="Expression" />
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-    <node concept="13hLZK" id="5GL30CqN0bI" role="13h7CW">
-      <node concept="3clFbS" id="5GL30CqN0bJ" role="2VODD2" />
+    <node concept="13i0hz" id="4CksDrmwfht" role="13h7CS">
+      <property role="TrG5h" value="buildOperator" />
+      <property role="13i0it" value="true" />
+      <property role="13i0iv" value="true" />
+      <node concept="3Tm1VV" id="4CksDrmwfhu" role="1B3o_S" />
+      <node concept="3Tqbb2" id="4CksDrmwfhP" role="3clF45">
+        <ref role="ehGHo" to="hm2y:4rZeNQ6MpKl" resolve="BinaryExpression" />
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+      <node concept="3clFbS" id="4CksDrmwfhw" role="3clF47" />
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+    <node concept="13hLZK" id="4CksDrmwc2n" role="13h7CW">
+      <node concept="3clFbS" id="4CksDrmwc2o" role="2VODD2" />
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-        <ref role="ehGHo" to="hm2y:5GL30CqMVEV" resolve="ISSConstrainedValue" />
+  <node concept="13h7C7" id="7rdMSLlsZY9">
+    <property role="3GE5qa" value="group" />
+    <ref role="13h7C2" to="hm2y:7rdMSLlsZXJ" resolve="MulTag" />
+    <node concept="13hLZK" id="7rdMSLlsZYa" role="13h7CW">
+      <node concept="3clFbS" id="7rdMSLlsZYb" role="2VODD2" />
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+    <node concept="13i0hz" id="7rdMSLlsZYk" role="13h7CS">
+      <property role="TrG5h" value="buildOperator" />
+      <property role="13i0it" value="false" />
+      <property role="13i0iv" value="false" />
+      <ref role="13i0hy" node="4CksDrmwfht" resolve="buildOperator" />
+      <node concept="3Tm1VV" id="7rdMSLlsZYl" role="1B3o_S" />
+      <node concept="3clFbS" id="7rdMSLlsZYo" role="3clF47">
+        <node concept="3clFbF" id="7rdMSLlt00W" role="3cqZAp">
+          <node concept="2ShNRf" id="7rdMSLlt00U" role="3clFbG">
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+              <node concept="3Tqbb2" id="7rdMSLltkWM" role="3zrR0E">
+                <ref role="ehGHo" to="hm2y:4rZeNQ6MqlJ" resolve="MulExpression" />
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+      <node concept="3Tqbb2" id="7rdMSLlsZYp" role="3clF45">
+        <ref role="ehGHo" to="hm2y:4rZeNQ6MpKl" resolve="BinaryExpression" />
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     </node>
-    <node concept="13i0hz" id="14gxgpJfXC0" role="13h7CS">
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+  <node concept="13h7C7" id="7rdMSLlpyJQ">
+    <property role="3GE5qa" value="group" />
+    <ref role="13h7C2" to="hm2y:7rdMSLlpyHe" resolve="PlusTag" />
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+      <property role="TrG5h" value="buildOperator" />
+      <property role="13i0it" value="false" />
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-      <property role="TrG5h" value="shouldBeSubstituted" />
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-            <property role="3clFbU" value="true" />
+      <ref role="13i0hy" node="4CksDrmwfht" resolve="buildOperator" />
+      <node concept="3Tm1VV" id="7rdMSLlpyK2" role="1B3o_S" />
+      <node concept="3clFbS" id="7rdMSLlpyK3" role="3clF47">
+        <node concept="3clFbF" id="7rdMSLlpyK4" role="3cqZAp">
+          <node concept="2ShNRf" id="7rdMSLlpyK5" role="3clFbG">
+            <node concept="3zrR0B" id="7rdMSLlpyK6" role="2ShVmc">
+              <node concept="3Tqbb2" id="7rdMSLlpyK7" role="3zrR0E">
+                <ref role="ehGHo" to="hm2y:4rZeNQ6MqjM" resolve="PlusExpression" />
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+      <node concept="3Tqbb2" id="7rdMSLlpyK8" role="3clF45">
+        <ref role="ehGHo" to="hm2y:4rZeNQ6MpKl" resolve="BinaryExpression" />
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     </node>
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-      <node concept="3clFbS" id="5GL30CqMVFn" role="2VODD2" />
+    <node concept="13hLZK" id="7rdMSLlpyJR" role="13h7CW">
+      <node concept="3clFbS" id="7rdMSLlpyJS" role="2VODD2" />
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-    <node concept="13i0hz" id="69JueU2Zy7c" role="13h7CS">
-      <property role="13i0iv" value="true" />
+  <node concept="13h7C7" id="4WLweXm3SVU">
+    <ref role="13h7C2" to="hm2y:4WLweXm3SVw" resolve="ITypeable" />
+    <node concept="13i0hz" id="4WLweXm3SW5" role="13h7CS">
       <property role="13i0it" value="true" />
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-      <node concept="3Tqbb2" id="69JueU2Zy7S" role="3clF45">
+      <property role="TrG5h" value="type" />
+      <node concept="3Tm1VV" id="4WLweXm3SW6" role="1B3o_S" />
+      <node concept="3Tqbb2" id="4WLweXm3SYD" role="3clF45">
         <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
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-            <property role="1dT_AB" value="This allows following the delegation links recursively to resolve the effectiveType." />
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+      <node concept="3clFbS" id="4WLweXm3SW8" role="3clF47">
+        <node concept="3cpWs6" id="4WLweXm4tFB" role="3cqZAp">
+          <node concept="10Nm6u" id="4WLweXm4tFI" role="3cqZAk" />
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-      <node concept="3clFbS" id="69JueU2Zy73" role="2VODD2" />
+    <node concept="13hLZK" id="4WLweXm3SVV" role="13h7CW">
+      <node concept="3clFbS" id="4WLweXm3SVW" role="2VODD2" />
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-  <node concept="13h7C7" id="5L2mTKmAIvO">
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-      <node concept="3clFbS" id="5L2mTKmAIvQ" role="2VODD2" />
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+      <node concept="3clFbS" id="5Iz9nTHIaV0" role="2VODD2" />
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+    <node concept="13i0hz" id="5Iz9nTHIbAc" role="13h7CS">
+      <property role="TrG5h" value="priority" />
+      <property role="2Ki8OM" value="true" />
+      <ref role="13i0hy" node="4rZeNQ6Nh_5" resolve="priority" />
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+        <node concept="3clFbF" id="5Iz9nTHIclc" role="3cqZAp">
+          <node concept="3cmrfG" id="5Iz9nTHIclb" role="3clFbG">
+            <property role="3cmrfH" value="1100" />
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-        <node concept="3clFbJ" id="5L2mTKmAVyA" role="3cqZAp">
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-                <property role="3clFbU" value="false" />
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+      </node>
+      <node concept="10Oyi0" id="5Iz9nTHIbAh" role="3clF45" />
+    </node>
+    <node concept="13i0hz" id="6ngDzsNlIY3" role="13h7CS">
+      <property role="TrG5h" value="renderReadable" />
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+      <node concept="3Tm1VV" id="6ngDzsNlIY4" role="1B3o_S" />
+      <node concept="3clFbS" id="6ngDzsNlIYh" role="3clF47">
+        <node concept="3clFbF" id="1dpQ_CuDCOY" role="3cqZAp">
+          <node concept="3cpWs3" id="1dpQ_CuDED9" role="3clFbG">
+            <node concept="Xl_RD" id="1dpQ_CuDEKT" role="3uHU7w">
+              <property role="Xl_RC" value="!" />
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-                    <ref role="cht4Q" to="hm2y:1Ez$z58L7Ek" resolve="SuccessType" />
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+            <node concept="2OqwBi" id="1dpQ_CuDDFe" role="3uHU7B">
+              <node concept="2OqwBi" id="1dpQ_CuDD14" role="2Oq$k0">
+                <node concept="13iPFW" id="1dpQ_CuDCOT" role="2Oq$k0" />
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+                  <ref role="3Tt5mk" to="hm2y:4rZeNQ6NgXF" resolve="expr" />
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-              </node>
-              <node concept="34oBXx" id="4CksDrmwybQ" role="2OqNvi" />
+      <node concept="37vLTG" id="7LZDtvhyLWU" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLWV" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrXyVJb1" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvhyLWW" role="1B3o_S" />
+      <node concept="2AHcQZ" id="7YuIrXyWrtA" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
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+    <node concept="2tJIrI" id="7LZDtvhyLWY" role="jymVt" />
+    <node concept="2YIFZL" id="7LZDtvhyLWZ" role="jymVt">
+      <property role="TrG5h" value="isNodeCovered" />
+      <property role="od$2w" value="false" />
+      <property role="DiZV1" value="false" />
+      <property role="2aFKle" value="false" />
+      <node concept="37vLTG" id="7LZDtvhyLX0" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLX1" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrX_buMS" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="7LZDtvhyLX2" role="3clF47">
+        <node concept="3clFbF" id="7YuIrX_b2he" role="3cqZAp">
+          <node concept="2OqwBi" id="7YuIrX_b3w1" role="3clFbG">
+            <node concept="1rXfSq" id="7YuIrX_b2hc" role="2Oq$k0">
+              <ref role="37wK5l" node="7LZDtvhyLNC" resolve="getInstance" />
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-                </node>
-                <node concept="1$rogu" id="4CksDrmx0z5" role="2OqNvi" />
+            <node concept="liA8E" id="7YuIrX_b5b$" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvhyLXy" resolve="isNodeCoveredEx" />
+              <node concept="37vLTw" id="7YuIrX_b6t6" role="37wK5m">
+                <ref role="3cqZAo" node="7LZDtvhyLX0" resolve="node" />
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-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
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+      <node concept="3Tm1VV" id="7LZDtvhyLXd" role="1B3o_S" />
+      <node concept="10P_77" id="7LZDtvhyLXe" role="3clF45" />
+    </node>
+    <node concept="3clFb_" id="7LZDtvhyLXy" role="jymVt">
+      <property role="TrG5h" value="isNodeCoveredEx" />
+      <node concept="3clFbS" id="7LZDtvhyLXz" role="3clF47" />
+      <node concept="10P_77" id="7LZDtvhyLXJ" role="3clF45" />
+      <node concept="37vLTG" id="7LZDtvhyLXK" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLXL" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrXyWZyx" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvhyLXM" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="7LZDtvhyLXO" role="jymVt" />
+    <node concept="2YIFZL" id="7LZDtvhyLXP" role="jymVt">
+      <property role="TrG5h" value="isNodePartiallyCovered" />
+      <property role="od$2w" value="false" />
+      <property role="DiZV1" value="false" />
+      <property role="2aFKle" value="false" />
+      <node concept="37vLTG" id="7LZDtvhyLXQ" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLXR" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrX_bxc0" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="7LZDtvhyLXS" role="3clF47">
+        <node concept="3clFbF" id="7YuIrX_baiv" role="3cqZAp">
+          <node concept="2OqwBi" id="7YuIrX_bbwI" role="3clFbG">
+            <node concept="1rXfSq" id="7YuIrX_bait" role="2Oq$k0">
+              <ref role="37wK5l" node="7LZDtvhyLNC" resolve="getInstance" />
+            </node>
+            <node concept="liA8E" id="7YuIrX_bd$t" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvhyLYq" resolve="isNodePartiallyCoveredEx" />
+              <node concept="37vLTw" id="7YuIrX_beZB" role="37wK5m">
+                <ref role="3cqZAo" node="7LZDtvhyLXQ" resolve="node" />
               </node>
             </node>
           </node>
         </node>
       </node>
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-        <node concept="A3Dl8" id="4CksDrmwwgF" role="1tU5fm">
-          <node concept="3Tqbb2" id="4CksDrmwwgG" role="A3Ik2">
-            <ref role="ehGHo" to="hm2y:6sdnDbSla17" resolve="Expression" />
+      <node concept="3Tm1VV" id="7LZDtvhyLY3" role="1B3o_S" />
+      <node concept="10P_77" id="7LZDtvhyLY4" role="3clF45" />
+    </node>
+    <node concept="3clFb_" id="7LZDtvhyLYq" role="jymVt">
+      <property role="TrG5h" value="isNodePartiallyCoveredEx" />
+      <node concept="3clFbS" id="7LZDtvhyLYr" role="3clF47" />
+      <node concept="10P_77" id="7LZDtvhyLYB" role="3clF45" />
+      <node concept="37vLTG" id="7LZDtvhyLYC" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLYD" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrXyWNXV" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvhyLYE" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="7LZDtvhyLYG" role="jymVt" />
+    <node concept="2YIFZL" id="7LZDtvhyLYH" role="jymVt">
+      <property role="TrG5h" value="isNodeNotCovered" />
+      <property role="od$2w" value="false" />
+      <property role="DiZV1" value="false" />
+      <property role="2aFKle" value="false" />
+      <node concept="37vLTG" id="7LZDtvhyLYI" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLYJ" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrX_byn6" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="7LZDtvhyLYK" role="3clF47">
+        <node concept="3clFbF" id="7YuIrX_biIQ" role="3cqZAp">
+          <node concept="2OqwBi" id="7YuIrX_bk0f" role="3clFbG">
+            <node concept="1rXfSq" id="7YuIrX_biIO" role="2Oq$k0">
+              <ref role="37wK5l" node="7LZDtvhyLNC" resolve="getInstance" />
+            </node>
+            <node concept="liA8E" id="7YuIrX_blE_" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvhyLZk" resolve="isNodeNotCoveredEx" />
+              <node concept="37vLTw" id="7YuIrX_bn4O" role="37wK5m">
+                <ref role="3cqZAo" node="7LZDtvhyLYI" resolve="node" />
+              </node>
+            </node>
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         </node>
       </node>
+      <node concept="3Tm1VV" id="7LZDtvhyLYV" role="1B3o_S" />
+      <node concept="10P_77" id="7LZDtvhyLYW" role="3clF45" />
     </node>
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-      <node concept="3clFbS" id="4CksDrmwwdO" role="2VODD2" />
+    <node concept="3clFb_" id="7LZDtvhyLZk" role="jymVt">
+      <property role="TrG5h" value="isNodeNotCoveredEx" />
+      <node concept="3clFbS" id="7LZDtvhyLZl" role="3clF47" />
+      <node concept="10P_77" id="7LZDtvhyLZx" role="3clF45" />
+      <node concept="37vLTG" id="7LZDtvhyLZy" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="7LZDtvhyLZz" role="1tU5fm" />
+        <node concept="2AHcQZ" id="7YuIrXyXng5" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvhyLZ$" role="1B3o_S" />
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+    <node concept="2YIFZL" id="7LZDtvhyM02" role="jymVt">
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+      <property role="od$2w" value="false" />
+      <property role="TrG5h" value="registerLanguage" />
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+                  <ref role="3cqZAo" node="7LZDtvhKJMq" resolve="PARTIAL" />
+                  <ref role="1PxDUh" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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+              <node concept="1rXfSq" id="7YuIrXzKmWl" role="3uHU7w">
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+        <node concept="2AHcQZ" id="7YuIrXzKmWm" role="2AJF6D">
+          <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
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+      <node concept="2tJIrI" id="7YuIrXzKmWn" role="jymVt" />
+      <node concept="3clFb_" id="7YuIrXzKmWo" role="jymVt">
+        <property role="TrG5h" value="color" />
+        <node concept="3uibUv" id="7YuIrXzKmWp" role="3clF45">
+          <ref role="3uigEE" to="z60i:~Color" resolve="Color" />
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+        <node concept="3Tm1VV" id="7YuIrXzKmWq" role="1B3o_S" />
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+                <node concept="2OwXpG" id="7YuIrXzKmWx" role="2OqNvi">
+                  <ref role="2Oxat5" node="7YuIrXzKmTP" resolve="branches" />
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-                  <ref role="3cqZAo" node="7KDVkAEsa9N" resolve="rightTypeParameters" />
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+                  <node concept="37vLTw" id="7YuIrXzKmW_" role="3K4Cdx">
+                    <ref role="3cqZAo" node="7YuIrXzKmTX" resolve="visitedAtAll" />
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+                    <ref role="3cqZAo" node="7LZDtvhKJMz" resolve="COVERED_COLOR" />
+                    <ref role="1PxDUh" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                  </node>
+                  <node concept="10M0yZ" id="7YuIrXzKmWB" role="3K4GZi">
+                    <ref role="3cqZAo" node="7LZDtvhKJMM" resolve="MISSING_COLOR" />
+                    <ref role="1PxDUh" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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-                      <ref role="3cqZAo" node="KoRsm_3puS" resolve="createError" />
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+          </node>
+          <node concept="3cpWs6" id="7YuIrXzKmWC" role="3cqZAp">
+            <node concept="10M0yZ" id="7YuIrXzKmWD" role="3cqZAk">
+              <ref role="3cqZAo" node="7LZDtvhKJO_" resolve="PARTIAL_COLOR" />
+              <ref role="1PxDUh" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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+          </node>
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+        <node concept="2AHcQZ" id="7YuIrXzKmWE" role="2AJF6D">
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+      <node concept="2tJIrI" id="7YuIrXzKmWF" role="jymVt" />
+      <node concept="3clFb_" id="7YuIrXzKmWG" role="jymVt">
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+        <node concept="3cqZAl" id="7YuIrXzKmWH" role="3clF45" />
+        <node concept="3Tm1VV" id="7YuIrXzKmWI" role="1B3o_S" />
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+              <node concept="3clFbT" id="7YuIrXzKmWM" role="37vLTx">
+                <property role="3clFbU" value="true" />
+              </node>
+              <node concept="37vLTw" id="7YuIrXzKmWN" role="37vLTJ">
+                <ref role="3cqZAo" node="7YuIrXzKmTX" resolve="visitedAtAll" />
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+          </node>
+        </node>
+        <node concept="2AHcQZ" id="7YuIrXzKmWO" role="2AJF6D">
+          <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+        </node>
+      </node>
+      <node concept="2tJIrI" id="7YuIrXzKmWP" role="jymVt" />
+      <node concept="3clFb_" id="7YuIrXzKmWQ" role="jymVt">
+        <property role="TrG5h" value="unvisitedBranches" />
+        <node concept="3Tm1VV" id="7YuIrXzKmWR" role="1B3o_S" />
+        <node concept="A3Dl8" id="7YuIrXzKmWS" role="3clF45">
+          <node concept="17QB3L" id="7YuIrXzKmWT" role="A3Ik2" />
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+        <node concept="3clFbS" id="7YuIrXzKmWU" role="3clF47">
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+                <node concept="Xjq3P" id="7YuIrXzKmWY" role="2Oq$k0" />
+                <node concept="2OwXpG" id="7YuIrXzKmWZ" role="2OqNvi">
+                  <ref role="2Oxat5" node="7YuIrXzKmTP" resolve="branches" />
+                </node>
+              </node>
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+                <node concept="1bVj0M" id="7YuIrXzKmX1" role="23t8la">
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+                      <node concept="3fqX7Q" id="7YuIrXzKmX4" role="3clFbG">
+                        <node concept="2OqwBi" id="7YuIrXzKmX5" role="3fr31v">
+                          <node concept="2OqwBi" id="7YuIrXzKmX6" role="2Oq$k0">
+                            <node concept="Xjq3P" id="7YuIrXzKmX7" role="2Oq$k0" />
+                            <node concept="2OwXpG" id="7YuIrXzKmX8" role="2OqNvi">
+                              <ref role="2Oxat5" node="7YuIrXzKmTT" resolve="visitedBranches" />
+                            </node>
+                          </node>
+                          <node concept="3JPx81" id="7YuIrXzKmX9" role="2OqNvi">
+                            <node concept="37vLTw" id="7YuIrXzKmXa" role="25WWJ7">
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+                            </node>
+                          </node>
+                        </node>
+                      </node>
                     </node>
                   </node>
+                  <node concept="gl6BB" id="7YuIrXzKmXb" role="1bW2Oz">
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+                    <node concept="2jxLKc" id="7YuIrXzKmXc" role="1tU5fm" />
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-                <ref role="3cqZAo" node="7KDVkAEsa9N" resolve="rightTypeParameters" />
+        </node>
+        <node concept="2AHcQZ" id="7YuIrXzKmXd" role="2AJF6D">
+          <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+        </node>
+      </node>
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+      <node concept="3clFb_" id="7YuIrXzKmXf" role="jymVt">
+        <property role="1EzhhJ" value="false" />
+        <property role="TrG5h" value="toString" />
+        <property role="DiZV1" value="false" />
+        <property role="od$2w" value="false" />
+        <node concept="3Tm1VV" id="7YuIrXzKmXg" role="1B3o_S" />
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+            <node concept="3cpWsn" id="7YuIrXzKmXk" role="3cpWs9">
+              <property role="TrG5h" value="sb" />
+              <node concept="3uibUv" id="7YuIrXzKmXl" role="1tU5fm">
+                <ref role="3uigEE" to="wyt6:~StringBuffer" resolve="StringBuffer" />
               </node>
-              <node concept="liA8E" id="7KDVkAEshtb" role="2OqNvi">
-                <ref role="37wK5l" to="33ny:~List.size():int" resolve="size" />
+              <node concept="2ShNRf" id="7YuIrXzKmXm" role="33vP2m">
+                <node concept="1pGfFk" id="7YuIrXzKmXn" role="2ShVmc">
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               </node>
             </node>
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+                <ref role="37wK5l" to="wyt6:~StringBuffer.append(java.lang.String)" resolve="append" />
+                <node concept="2OqwBi" id="7YuIrXzKmXs" role="37wK5m">
+                  <node concept="2OqwBi" id="7YuIrXzKmXt" role="2Oq$k0">
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+                  </node>
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+                    <ref role="37wK5l" to="c17a:~SAbstractConcept.getName()" resolve="getName" />
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-                          <ref role="3cqZAo" node="7KDVkAErfVL" resolve="otherType" />
-                        </node>
-                      </node>
+          <node concept="3clFbJ" id="7YuIrXzKmXx" role="3cqZAp">
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+                  <node concept="liA8E" id="7YuIrXzKmXA" role="2OqNvi">
+                    <ref role="37wK5l" to="wyt6:~StringBuffer.append(java.lang.String)" resolve="append" />
+                    <node concept="Xl_RD" id="7YuIrXzKmXB" role="37wK5m">
+                      <property role="Xl_RC" value=" not visited." />
                     </node>
                   </node>
                 </node>
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+                </node>
+              </node>
+              <node concept="3clFbS" id="7YuIrXzKmXL" role="3eOfB_">
+                <node concept="3clFbF" id="7YuIrXzKmXM" role="3cqZAp">
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+                    <node concept="37vLTw" id="7YuIrXzKmXO" role="2Oq$k0">
+                      <ref role="3cqZAo" node="7YuIrXzKmXk" resolve="sb" />
                     </node>
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-                        <node concept="chp4Y" id="KoRsm_3MCI" role="3oSUPX">
-                          <ref role="cht4Q" to="hm2y:6sdnDbSlaok" resolve="Type" />
+                    <node concept="liA8E" id="7YuIrXzKmXP" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~StringBuffer.append(java.lang.String)" resolve="append" />
+                      <node concept="3cpWs3" id="7YuIrXzKmXQ" role="37wK5m">
+                        <node concept="1rXfSq" id="7YuIrXzKmXR" role="3uHU7w">
+                          <ref role="37wK5l" node="7YuIrXzKmWQ" resolve="unvisitedBranches" />
+                        </node>
+                        <node concept="Xl_RD" id="7YuIrXzKmXS" role="3uHU7B">
+                          <property role="Xl_RC" value=" missing " />
                         </node>
-                        <node concept="13iPFW" id="KoRsm_3MCJ" role="1m5AlR" />
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@@ -26834,2533 +28497,4096 @@
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-            <property role="3clFbU" value="true" />
+          <node concept="3clFbF" id="7YuIrXzKmXT" role="3cqZAp">
+            <node concept="2OqwBi" id="7YuIrXzKmXU" role="3clFbG">
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+                <ref role="3cqZAo" node="7YuIrXzKmXk" resolve="sb" />
+              </node>
+              <node concept="liA8E" id="7YuIrXzKmXW" role="2OqNvi">
+                <ref role="37wK5l" to="wyt6:~StringBuffer.toString()" resolve="toString" />
+              </node>
+            </node>
           </node>
         </node>
+        <node concept="2AHcQZ" id="7YuIrXzKmXX" role="2AJF6D">
+          <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+        </node>
       </node>
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-                      <node concept="1SSJmt" id="5Ys_ngSnDHM" role="1P8hpE">
-                        <node concept="1T8lYq" id="5Ys_ngSnDIk" role="1T5LoC">
-                          <property role="1T8p8b" value="0" />
-                          <property role="1T8pRJ" value="9" />
-                        </node>
-                        <node concept="1T8lYq" id="5Ys_ngSnDJL" role="1T5LoC">
-                          <property role="1T8p8b" value="a" />
-                          <property role="1T8pRJ" value="f" />
-                        </node>
-                        <node concept="1T8lYq" id="5Ys_ngSnDKL" role="1T5LoC">
-                          <property role="1T8p8b" value="A" />
-                          <property role="1T8pRJ" value="F" />
-                        </node>
-                      </node>
-                    </node>
+                  <node concept="37vLTw" id="7YuIrXzKnnI" role="37wK5m">
+                    <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
                   </node>
                 </node>
               </node>
             </node>
           </node>
+          <node concept="2ZW3vV" id="7YuIrXzKnnJ" role="3clFbw">
+            <node concept="3uibUv" id="7YuIrXzKnnK" role="2ZW6by">
+              <ref role="3uigEE" to="xlxw:~BigInteger" resolve="BigInteger" />
+            </node>
+            <node concept="37vLTw" id="7YuIrXzKnnL" role="2ZW6bz">
+              <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+            </node>
+          </node>
         </node>
-      </node>
-      <node concept="37vLTG" id="5Ys_ngSnCCF" role="3clF46">
-        <property role="TrG5h" value="val" />
-        <node concept="17QB3L" id="5Ys_ngSnCCE" role="1tU5fm" />
-      </node>
-    </node>
-    <node concept="13hLZK" id="5Ys_ngSnA9m" role="13h7CW">
-      <node concept="3clFbS" id="5Ys_ngSnA9n" role="2VODD2" />
-    </node>
-    <node concept="13i0hz" id="2KEzU_ju41e" role="13h7CS">
-      <property role="TrG5h" value="getPropertyReference" />
-      <node concept="3Tm1VV" id="2KEzU_ju41f" role="1B3o_S" />
-      <node concept="3clFbS" id="2KEzU_ju41h" role="3clF47">
-        <node concept="3clFbF" id="2KEzU_juvlh" role="3cqZAp">
-          <node concept="2ShNRf" id="2KEzU_juvlf" role="3clFbG">
-            <node concept="1pGfFk" id="2KEzU_juwAI" role="2ShVmc">
-              <property role="373rjd" value="true" />
-              <ref role="37wK5l" to="w1kc:~SNodePointer.&lt;init&gt;(java.lang.String,java.lang.String)" resolve="SNodePointer" />
-              <node concept="2OqwBi" id="2KEzU_juwSN" role="37wK5m">
-                <node concept="13iPFW" id="2KEzU_juwEe" role="2Oq$k0" />
-                <node concept="3TrcHB" id="2KEzU_juNwZ" role="2OqNvi">
-                  <ref role="3TsBF5" to="hm2y:2KEzU_ju0fn" resolve="propertyModelUID" />
+        <node concept="3clFbJ" id="7YuIrXzKnnM" role="3cqZAp">
+          <node concept="3clFbS" id="7YuIrXzKnnN" role="3clFbx">
+            <node concept="3clFbF" id="7YuIrXzKnnO" role="3cqZAp">
+              <node concept="2OqwBi" id="7YuIrXzKnnP" role="3clFbG">
+                <node concept="37vLTw" id="7YuIrXzKnnQ" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7YuIrXzKn7o" resolve="statistics" />
+                </node>
+                <node concept="liA8E" id="7YuIrXzKnnR" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhF5GK" resolve="newValue" />
+                  <node concept="Xl_RD" id="7YuIrXzKnnS" role="37wK5m">
+                    <property role="Xl_RC" value="decimal.min" />
+                  </node>
+                  <node concept="37vLTw" id="7YuIrXzKnnT" role="37wK5m">
+                    <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+                  </node>
                 </node>
               </node>
-              <node concept="2OqwBi" id="2KEzU_juO0T" role="37wK5m">
-                <node concept="13iPFW" id="2KEzU_juNIM" role="2Oq$k0" />
-                <node concept="3TrcHB" id="2KEzU_juOiP" role="2OqNvi">
-                  <ref role="3TsBF5" to="hm2y:2KEzU_juad6" resolve="propertyNodeID" />
+            </node>
+            <node concept="3clFbF" id="7YuIrXzKnnU" role="3cqZAp">
+              <node concept="2OqwBi" id="7YuIrXzKnnV" role="3clFbG">
+                <node concept="37vLTw" id="7YuIrXzKnnW" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7YuIrXzKn7o" resolve="statistics" />
+                </node>
+                <node concept="liA8E" id="7YuIrXzKnnX" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhF5GK" resolve="newValue" />
+                  <node concept="Xl_RD" id="7YuIrXzKnnY" role="37wK5m">
+                    <property role="Xl_RC" value="decimal.minusOne" />
+                  </node>
+                  <node concept="37vLTw" id="7YuIrXzKnnZ" role="37wK5m">
+                    <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbF" id="7YuIrXzKno0" role="3cqZAp">
+              <node concept="2OqwBi" id="7YuIrXzKno1" role="3clFbG">
+                <node concept="37vLTw" id="7YuIrXzKno2" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7YuIrXzKn7o" resolve="statistics" />
+                </node>
+                <node concept="liA8E" id="7YuIrXzKno3" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhF5GK" resolve="newValue" />
+                  <node concept="Xl_RD" id="7YuIrXzKno4" role="37wK5m">
+                    <property role="Xl_RC" value="decimal.zero" />
+                  </node>
+                  <node concept="37vLTw" id="7YuIrXzKno5" role="37wK5m">
+                    <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbF" id="7YuIrXzKno6" role="3cqZAp">
+              <node concept="2OqwBi" id="7YuIrXzKno7" role="3clFbG">
+                <node concept="37vLTw" id="7YuIrXzKno8" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7YuIrXzKn7o" resolve="statistics" />
+                </node>
+                <node concept="liA8E" id="7YuIrXzKno9" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhF5GK" resolve="newValue" />
+                  <node concept="Xl_RD" id="7YuIrXzKnoa" role="37wK5m">
+                    <property role="Xl_RC" value="decimal.one" />
+                  </node>
+                  <node concept="37vLTw" id="7YuIrXzKnob" role="37wK5m">
+                    <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbF" id="7YuIrXzKnoc" role="3cqZAp">
+              <node concept="2OqwBi" id="7YuIrXzKnod" role="3clFbG">
+                <node concept="37vLTw" id="7YuIrXzKnoe" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7YuIrXzKn7o" resolve="statistics" />
+                </node>
+                <node concept="liA8E" id="7YuIrXzKnof" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvhF5GK" resolve="newValue" />
+                  <node concept="Xl_RD" id="7YuIrXzKnog" role="37wK5m">
+                    <property role="Xl_RC" value="decimal.max" />
+                  </node>
+                  <node concept="37vLTw" id="7YuIrXzKnoh" role="37wK5m">
+                    <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+                  </node>
                 </node>
               </node>
             </node>
           </node>
+          <node concept="2ZW3vV" id="7YuIrXzKnoi" role="3clFbw">
+            <node concept="3uibUv" id="7YuIrXzKnoj" role="2ZW6by">
+              <ref role="3uigEE" to="xlxw:~BigDecimal" resolve="BigDecimal" />
+            </node>
+            <node concept="37vLTw" id="7YuIrXzKnok" role="2ZW6bz">
+              <ref role="3cqZAo" node="7YuIrXzKnnc" resolve="evaluatedValue" />
+            </node>
+          </node>
         </node>
       </node>
-      <node concept="3uibUv" id="2UGgvQfS768" role="3clF45">
-        <ref role="3uigEE" to="w1kc:~SNodePointer" resolve="SNodePointer" />
+      <node concept="2AHcQZ" id="7YuIrXzKnol" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-  </node>
-  <node concept="13h7C7" id="41vYFO2_l64">
-    <property role="3GE5qa" value="nix" />
-    <ref role="13h7C2" to="hm2y:3tcv7J0pmjC" resolve="EmptyType" />
-    <node concept="13hLZK" id="41vYFO2_l65" role="13h7CW">
-      <node concept="3clFbS" id="41vYFO2_l66" role="2VODD2" />
+    <node concept="2tJIrI" id="7YuIrXzKmTM" role="jymVt" />
+    <node concept="3Tm1VV" id="7YuIrXzKeOE" role="1B3o_S" />
+    <node concept="3uibUv" id="7YuIrXzKfnB" role="EKbjA">
+      <ref role="3uigEE" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
     </node>
-    <node concept="13i0hz" id="41vYFO2_l6n" role="13h7CS">
-      <property role="TrG5h" value="createDefaultVarExpr" />
-      <ref role="13i0hy" node="60Qa1k_nI2O" resolve="createDefaultVarExpr" />
-      <node concept="3Tm1VV" id="41vYFO2_l6o" role="1B3o_S" />
-      <node concept="3clFbS" id="41vYFO2_l6r" role="3clF47">
-        <node concept="3clFbF" id="41vYFO2_l81" role="3cqZAp">
-          <node concept="2pJPEk" id="41vYFO2_l7Z" role="3clFbG">
-            <node concept="2pJPED" id="41vYFO2_l80" role="2pJPEn">
-              <ref role="2pJxaS" to="hm2y:3nVyItrZBN9" resolve="EmptyValue" />
+    <node concept="3UR2Jj" id="7YuIrX_lgJZ" role="lGtFl">
+      <node concept="TZ5HA" id="7YuIrX_lgK0" role="TZ5H$">
+        <node concept="1dT_AC" id="7YuIrX_lgK1" role="1dT_Ay">
+          <property role="1dT_AB" value="Complete non-static implementation of " />
+        </node>
+        <node concept="1dT_AA" id="7YuIrX_lmdD" role="1dT_Ay">
+          <node concept="92FcH" id="7YuIrX_lsVP" role="qph3F">
+            <node concept="TZ5HA" id="7YuIrX_lsVR" role="2XjZqd" />
+            <node concept="VXe08" id="7YuIrX_lxli" role="92FcQ">
+              <ref role="VXe09" node="7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             </node>
           </node>
         </node>
+        <node concept="1dT_AC" id="7YuIrX_lmdC" role="1dT_Ay">
+          <property role="1dT_AB" value="." />
+        </node>
       </node>
-      <node concept="3Tqbb2" id="41vYFO2_l6s" role="3clF45">
-        <ref role="ehGHo" to="hm2y:6sdnDbSla17" resolve="Expression" />
+    </node>
+  </node>
+  <node concept="3HP615" id="7LZDtvhtD$G">
+    <property role="TrG5h" value="IValueAndTraceAndEnv" />
+    <node concept="3clFb_" id="7LZDtvhtDNX" role="jymVt">
+      <property role="TrG5h" value="env" />
+      <property role="od$2w" value="false" />
+      <property role="DiZV1" value="false" />
+      <property role="2aFKle" value="false" />
+      <node concept="3clFbS" id="7LZDtvhtDNY" role="3clF47" />
+      <node concept="3Tm1VV" id="7LZDtvhtDO3" role="1B3o_S" />
+      <node concept="3uibUv" id="7LZDtvhtDO4" role="3clF45">
+        <ref role="3uigEE" to="2ahs:7F2vPZ3KyDX" resolve="IEnvironment" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvhtDO6" role="jymVt">
+      <property role="TrG5h" value="coverage" />
+      <node concept="3clFbS" id="7LZDtvhtDO7" role="3clF47" />
+      <node concept="3Tm1VV" id="7LZDtvhtDOc" role="1B3o_S" />
+      <node concept="3uibUv" id="7LZDtvhtDOd" role="3clF45">
+        <ref role="3uigEE" to="2ahs:4_qY3E5ifTh" resolve="ICoverageAnalyzer" />
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvhtDOe" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
       </node>
     </node>
+    <node concept="3Tm1VV" id="7LZDtvhtD$H" role="1B3o_S" />
+    <node concept="3uibUv" id="7LZDtvhtD_j" role="3HQHJm">
+      <ref role="3uigEE" node="7LZDtvhnXHQ" resolve="IValueAndTrace" />
+    </node>
   </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/constraints.mps
index a71cd5e374..0ed1b06d12 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/constraints.mps
@@ -68,7 +68,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -102,6 +102,7 @@
       <concept id="1153138554286" name="jetbrains.mps.lang.constraints.structure.ConstraintsFunctionParameter_propertyValue" flags="nn" index="1Wqviy" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -154,7 +155,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -165,7 +166,6 @@
       <concept id="540871147943773365" name="jetbrains.mps.baseLanguage.collections.structure.SingleArgumentSequenceOperation" flags="nn" index="25WWJ4">
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -252,7 +252,7 @@
                       <node concept="3clFbF" id="1F1F0IUZ_Y4" role="3cqZAp">
                         <node concept="2OqwBi" id="1F1F0IUZ_Y5" role="3clFbG">
                           <node concept="37vLTw" id="1F1F0IUZ_Y6" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1F1F0IUZ_Y8" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8176p" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="1F1F0IUZ_Y7" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:5ye9uPrkFwU" resolve="findTheSomeQueries" />
@@ -260,9 +260,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZ_Y8" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8176p" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZ_Y9" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8176q" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -751,7 +751,7 @@
                         <node concept="3fqX7Q" id="1F1F0IUZ_Tq" role="3clFbG">
                           <node concept="2OqwBi" id="1F1F0IUZ_Tr" role="3fr31v">
                             <node concept="37vLTw" id="1F1F0IUZ_Ts" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1F1F0IUZ_Tv" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8176r" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="1F1F0IUZ_Tt" role="2OqNvi">
                               <node concept="chp4Y" id="1F1F0IUZ_Tu" role="cj9EA">
@@ -762,9 +762,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZ_Tv" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8176r" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZ_Tw" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8176s" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/editor.mps
index bcb8d55610..49515a29ef 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/editor.mps
@@ -3,16 +3,16 @@
   <persistence version="9" />
   <attribute name="doNotGenerate" value="false" />
   <languages>
-    <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="14" />
-    <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="2" />
-    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="1919c723-b60b-4592-9318-9ce96d91da44" name="de.itemis.mps.editor.celllayout" version="0" />
-    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
-    <use id="b8bb702e-43ed-4090-a902-d180d3e5f292" name="de.slisson.mps.conditionalEditor" version="0" />
-    <use id="52733268-be24-4f5f-ab84-a73b7c0c03b0" name="de.slisson.mps.richtext.customcell" version="0" />
-    <use id="b1ab8c10-c118-4755-bf2a-cebab35cf533" name="jetbrains.mps.lang.editor.tooltips" version="0" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="-1" />
+    <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="-1" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
+    <use id="1919c723-b60b-4592-9318-9ce96d91da44" name="de.itemis.mps.editor.celllayout" version="-1" />
+    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
+    <use id="b8bb702e-43ed-4090-a902-d180d3e5f292" name="de.slisson.mps.conditionalEditor" version="-1" />
+    <use id="52733268-be24-4f5f-ab84-a73b7c0c03b0" name="de.slisson.mps.richtext.customcell" version="-1" />
+    <use id="b1ab8c10-c118-4755-bf2a-cebab35cf533" name="jetbrains.mps.lang.editor.tooltips" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="13744753-c81f-424a-9c1b-cf8943bf4e86" name="jetbrains.mps.lang.sharedConcepts" version="0" />
     <use id="654422bf-e75f-44dc-936d-188890a746ce" name="de.slisson.mps.reflection" version="0" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
@@ -45,8 +45,8 @@
     <import index="fulz" ref="r:6f792c44-2a5d-40e8-9f05-33f7d4ae26ec(jetbrains.mps.editor.runtime.completion)" />
     <import index="uddc" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor.menus.transformation(MPS.Editor/)" />
     <import index="u59o" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.nodeEditor.menus.transformation(MPS.Editor/)" />
-    <import index="oq0c" ref="r:6c6155f0-4bbe-4af5-8c26-244d570e21e4(org.iets3.core.expr.base.plugin)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
+    <import index="oq0c" ref="r:6c6155f0-4bbe-4af5-8c26-244d570e21e4(org.iets3.core.expr.base.plugin)" />
     <import index="gdgh" ref="r:e4d9478b-ae0e-416e-be60-73d136571015(org.iets3.core.base.behavior)" implicit="true" />
     <import index="vs0r" ref="r:f7764ca4-8c75-4049-922b-08516400a727(com.mbeddr.core.base.structure)" implicit="true" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" implicit="true" />
@@ -519,6 +519,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -2217,7 +2218,7 @@
                                   <node concept="3clFbF" id="12WRc294xzS" role="3cqZAp">
                                     <node concept="2OqwBi" id="12WRc294xzT" role="3clFbG">
                                       <node concept="37vLTw" id="12WRc294xzU" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="12WRc294xzW" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8176t" resolve="it" />
                                       </node>
                                       <node concept="3TrcHB" id="12WRc294xzV" role="2OqNvi">
                                         <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2225,9 +2226,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="12WRc294xzW" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8176t" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="12WRc294xzX" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8176u" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -2263,7 +2264,7 @@
                                       <node concept="3clFbF" id="3kdFyLXe9Y9" role="3cqZAp">
                                         <node concept="2OqwBi" id="3kdFyLXeaqL" role="3clFbG">
                                           <node concept="37vLTw" id="3kdFyLXe9Y8" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="3kdFyLXe8Iw" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX8176v" resolve="it" />
                                           </node>
                                           <node concept="3TrcHB" id="3kdFyLXecOp" role="2OqNvi">
                                             <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2271,9 +2272,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="3kdFyLXe8Iw" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX8176v" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="3kdFyLXe8Ix" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX8176w" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -3830,17 +3831,17 @@
                     <node concept="3clFbS" id="3$EgSSxSMHY" role="1bW5cS">
                       <node concept="3clFbF" id="3$EgSSxSMHZ" role="3cqZAp">
                         <node concept="2YIFZM" id="3$EgSSxSMI0" role="3clFbG">
-                          <ref role="37wK5l" to="pbu6:1WlYLwX1YJg" resolve="hasNodeCoverage" />
-                          <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                          <ref role="37wK5l" to="pbu6:7LZDtvhyLV6" resolve="hasNodeCoverage" />
+                          <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                           <node concept="37vLTw" id="3$EgSSxSMI1" role="37wK5m">
-                            <ref role="3cqZAo" node="3$EgSSxSMI2" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8176x" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3$EgSSxSMI2" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8176x" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3$EgSSxSMI3" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8176y" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -3870,7 +3871,7 @@
                         <node concept="3clFbF" id="3$EgSSxSzG9" role="3cqZAp">
                           <node concept="2OqwBi" id="3$EgSSxS$2U" role="3clFbG">
                             <node concept="37vLTw" id="3$EgSSxSzG8" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3$EgSSxSzgV" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8176z" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="3$EgSSxS$ER" role="2OqNvi">
                               <ref role="37wK5l" to="kqnq:2hXd3rsZYy8" resolve="isToplevelCoverageContent" />
@@ -3878,9 +3879,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3$EgSSxSzgV" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8176z" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3$EgSSxSzgW" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8176$" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3890,8 +3891,8 @@
             </node>
             <node concept="3fqX7Q" id="3$EgSSxSOF_" role="3uHU7w">
               <node concept="2YIFZM" id="3$EgSSxSOFA" role="3fr31v">
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                <ref role="37wK5l" to="pbu6:1WlYLwX1YJg" resolve="hasNodeCoverage" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyLV6" resolve="hasNodeCoverage" />
                 <node concept="pncrf" id="3$EgSSxSOFB" role="37wK5m" />
               </node>
             </node>
@@ -3906,8 +3907,8 @@
             </node>
             <node concept="3fqX7Q" id="2udM7u9cReh" role="3eO9$A">
               <node concept="2YIFZM" id="2udM7u9cRej" role="3fr31v">
-                <ref role="37wK5l" to="pbu6:1WlYLwX1YJg" resolve="hasNodeCoverage" />
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyLV6" resolve="hasNodeCoverage" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 <node concept="pncrf" id="2udM7u9cRek" role="37wK5m" />
               </node>
             </node>
@@ -3963,7 +3964,7 @@
                     <node concept="3clFbF" id="Om1N8U02gD" role="3cqZAp">
                       <node concept="2OqwBi" id="Om1N8U02gE" role="3clFbG">
                         <node concept="37vLTw" id="Om1N8U02gF" role="2Oq$k0">
-                          <ref role="3cqZAo" node="Om1N8U02gH" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8176_" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="Om1N8U02gG" role="2OqNvi">
                           <ref role="37wK5l" to="kqnq:2hXd3rsZYy8" resolve="isToplevelCoverageContent" />
@@ -3971,9 +3972,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="Om1N8U02gH" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8176_" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="Om1N8U02gI" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8176A" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4038,10 +4039,10 @@
                     <node concept="3clFbF" id="Om1N8U05qh" role="3cqZAp">
                       <node concept="22lmx$" id="Om1N8UbllL" role="3clFbG">
                         <node concept="2YIFZM" id="Om1N8UbkHT" role="3uHU7w">
-                          <ref role="37wK5l" to="pbu6:1WlYLwX3YKL" resolve="isNodeNotCovered" />
-                          <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                          <ref role="37wK5l" to="pbu6:7LZDtvhyLYH" resolve="isNodeNotCovered" />
+                          <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                           <node concept="37vLTw" id="Om1N8UbkHU" role="37wK5m">
-                            <ref role="3cqZAo" node="Om1N8U05qo" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8176B" resolve="it" />
                           </node>
                         </node>
                         <node concept="2OqwBi" id="Om1N8UboFd" role="3uHU7B">
@@ -4051,7 +4052,7 @@
                               <ref role="cht4Q" to="3673:5IKJrJHNBNb" resolve="ICanHaveTestCoverage" />
                             </node>
                             <node concept="37vLTw" id="Om1N8Ubm$F" role="1m5AlR">
-                              <ref role="3cqZAo" node="Om1N8U05qo" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8176B" resolve="it" />
                             </node>
                           </node>
                           <node concept="2qgKlT" id="Om1N8UbpCr" role="2OqNvi">
@@ -4061,9 +4062,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="Om1N8U05qo" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8176B" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="Om1N8U05qp" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8176C" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4141,8 +4142,8 @@
                 <ref role="3cqZAo" node="5aYhgyhZp46" resolve="topLevelNode" />
               </node>
               <node concept="2YIFZM" id="7RUjcsXhQXs" role="3uHU7w">
-                <ref role="37wK5l" to="pbu6:1WlYLwX3YKL" resolve="isNodeNotCovered" />
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyLYH" resolve="isNodeNotCovered" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 <node concept="pncrf" id="7RUjcsXhQXt" role="37wK5m" />
               </node>
             </node>
@@ -4289,8 +4290,8 @@
                   </node>
                 </node>
                 <node concept="2YIFZM" id="1WlYLwX5dHS" role="3clFbw">
-                  <ref role="37wK5l" to="pbu6:1WlYLwX3McV" resolve="isNodeCovered" />
-                  <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                  <ref role="37wK5l" to="pbu6:7LZDtvhyLWZ" resolve="isNodeCovered" />
+                  <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                   <node concept="pncrf" id="1WlYLwX5dOD" role="37wK5m" />
                 </node>
               </node>
@@ -4313,8 +4314,8 @@
                   </node>
                 </node>
                 <node concept="2YIFZM" id="1WlYLwX5e5Y" role="3clFbw">
-                  <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                  <ref role="37wK5l" to="pbu6:1WlYLwX3UOV" resolve="isNodePartiallyCovered" />
+                  <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                  <ref role="37wK5l" to="pbu6:7LZDtvhyLXP" resolve="isNodePartiallyCovered" />
                   <node concept="pncrf" id="1WlYLwX5e5Z" role="37wK5m" />
                 </node>
               </node>
@@ -4338,14 +4339,14 @@
                 </node>
                 <node concept="22lmx$" id="3$EgSSxV3uA" role="3clFbw">
                   <node concept="2YIFZM" id="1WlYLwX5elY" role="3uHU7B">
-                    <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                    <ref role="37wK5l" to="pbu6:1WlYLwX3YKL" resolve="isNodeNotCovered" />
+                    <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                    <ref role="37wK5l" to="pbu6:7LZDtvhyLYH" resolve="isNodeNotCovered" />
                     <node concept="pncrf" id="1WlYLwX5elZ" role="37wK5m" />
                   </node>
                   <node concept="3fqX7Q" id="3$EgSSxV3Rx" role="3uHU7w">
                     <node concept="2YIFZM" id="3$EgSSxV3Rz" role="3fr31v">
-                      <ref role="37wK5l" to="pbu6:1WlYLwX1YJg" resolve="hasNodeCoverage" />
-                      <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                      <ref role="37wK5l" to="pbu6:7LZDtvhyLV6" resolve="hasNodeCoverage" />
+                      <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                       <node concept="pncrf" id="3$EgSSxV3R$" role="37wK5m" />
                     </node>
                   </node>
@@ -4461,8 +4462,8 @@
                       </node>
                     </node>
                     <node concept="2YIFZM" id="7MlD5PwD$_V" role="3clFbw">
-                      <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="37wK5l" to="pbu6:1WlYLwX3YKL" resolve="isNodeNotCovered" />
+                      <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                      <ref role="37wK5l" to="pbu6:7LZDtvhyLYH" resolve="isNodeNotCovered" />
                       <node concept="pncrf" id="7MlD5PwD$_W" role="37wK5m" />
                     </node>
                     <node concept="3eNFk2" id="43wAXFoL43k" role="3eNLev">
@@ -4557,8 +4558,8 @@
                         </node>
                       </node>
                       <node concept="2YIFZM" id="43wAXFoL4AI" role="3eO9$A">
-                        <ref role="37wK5l" to="pbu6:1WlYLwX3McV" resolve="isNodeCovered" />
-                        <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                        <ref role="37wK5l" to="pbu6:7LZDtvhyLWZ" resolve="isNodeCovered" />
+                        <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                         <node concept="pncrf" id="43wAXFoL4AJ" role="37wK5m" />
                       </node>
                     </node>
@@ -6024,8 +6025,8 @@
               </node>
               <node concept="3fqX7Q" id="3L1$CQuppL2" role="3clFbw">
                 <node concept="2YIFZM" id="3L1$CQuppL4" role="3fr31v">
-                  <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                  <ref role="37wK5l" to="pbu6:3L1$CQt_Nrm" resolve="isInInterestingContext" />
+                  <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                  <ref role="37wK5l" to="pbu6:7LZDtvhyM1a" resolve="isInInterestingContext" />
                   <node concept="pncrf" id="3L1$CQuppL5" role="37wK5m" />
                 </node>
               </node>
@@ -6037,8 +6038,8 @@
                 </node>
               </node>
               <node concept="2YIFZM" id="3TIaSh_4nw1" role="3clFbw">
-                <ref role="37wK5l" to="pbu6:3TIaSh_44c0" resolve="isIgnored" />
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyM2U" resolve="isIgnored" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 <node concept="pncrf" id="3TIaSh_4nDV" role="37wK5m" />
               </node>
             </node>
@@ -6049,12 +6050,12 @@
                 <node concept="17QB3L" id="3TIaSh$jOMV" role="1tU5fm" />
                 <node concept="2OqwBi" id="3TIaSh$jOMW" role="33vP2m">
                   <node concept="2YIFZM" id="3TIaSh$jOMX" role="2Oq$k0">
-                    <ref role="37wK5l" to="pbu6:5DizcGOb6ar" resolve="getNodeCoverage" />
-                    <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <ref role="37wK5l" to="pbu6:7LZDtvhyLVv" resolve="getNodeCoverage" />
+                    <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     <node concept="pncrf" id="3TIaSh$jOMY" role="37wK5m" />
                   </node>
                   <node concept="liA8E" id="3TIaSh$jOMZ" role="2OqNvi">
-                    <ref role="37wK5l" to="pbu6:5DizcGO8Hdr" resolve="getStatus" />
+                    <ref role="37wK5l" to="pbu6:7LZDtvhDKIP" resolve="getStatus" />
                   </node>
                 </node>
               </node>
@@ -6062,9 +6063,9 @@
             <node concept="3clFbJ" id="3TIaSh$tbAx" role="3cqZAp">
               <node concept="3clFbS" id="3TIaSh$tbAz" role="3clFbx">
                 <node concept="3cpWs6" id="3TIaSh$fnsN" role="3cqZAp">
-                  <node concept="10M0yZ" id="3TIaSh$oXtB" role="3cqZAk">
-                    <ref role="3cqZAo" to="pbu6:3TIaSh$oHVE" resolve="CODE_COVERED_COLOR" />
-                    <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                  <node concept="10M0yZ" id="7LZDtvhXjs6" role="3cqZAk">
+                    <ref role="3cqZAo" to="pbu6:7LZDtvhKJP4" resolve="CODE_COVERED_COLOR" />
+                    <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                   </node>
                 </node>
               </node>
@@ -6074,18 +6075,18 @@
                 </node>
                 <node concept="liA8E" id="3TIaSh$tc_7" role="2OqNvi">
                   <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                  <node concept="10M0yZ" id="3TIaSh$tcJM" role="37wK5m">
-                    <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                    <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
+                  <node concept="10M0yZ" id="7LZDtvhXjWC" role="37wK5m">
+                    <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                    <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                   </node>
                 </node>
               </node>
               <node concept="3eNFk2" id="3TIaSh$tdm5" role="3eNLev">
                 <node concept="3clFbS" id="3TIaSh$tdm7" role="3eOfB_">
                   <node concept="3cpWs6" id="3TIaSh$fnD3" role="3cqZAp">
-                    <node concept="10M0yZ" id="3TIaSh$oXCR" role="3cqZAk">
-                      <ref role="3cqZAo" to="pbu6:3TIaSh$oHVw" resolve="CODE_PARTIAL_COLOR" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhXks6" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJPm" resolve="CODE_PARTIAL_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -6095,9 +6096,9 @@
                   </node>
                   <node concept="liA8E" id="3TIaSh$tduR" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="3TIaSh$tdGQ" role="37wK5m">
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wdqa" resolve="PARTIAL" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhXkTK" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMq" resolve="PARTIAL" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -6105,9 +6106,9 @@
               <node concept="9aQIb" id="3TIaSh$ted6" role="9aQIa">
                 <node concept="3clFbS" id="3TIaSh$ted7" role="9aQI4">
                   <node concept="3cpWs6" id="3TIaSh$fqyx" role="3cqZAp">
-                    <node concept="10M0yZ" id="3TIaSh$oXO7" role="3cqZAk">
-                      <ref role="3cqZAo" to="pbu6:3TIaSh$oHV_" resolve="CODE_MISSING_COLOR" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhXlm2" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJPd" resolve="CODE_MISSING_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -6310,8 +6311,8 @@
       <node concept="3clFbS" id="43wAXFpMhuS" role="3clF47">
         <node concept="3clFbJ" id="43wAXFpMibn" role="3cqZAp">
           <node concept="2YIFZM" id="43wAXFpMij0" role="3clFbw">
-            <ref role="37wK5l" to="pbu6:1WlYLwX3McV" resolve="isNodeCovered" />
-            <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+            <ref role="37wK5l" to="pbu6:7LZDtvhyLWZ" resolve="isNodeCovered" />
+            <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             <node concept="37vLTw" id="43wAXFpMilS" role="37wK5m">
               <ref role="3cqZAo" node="43wAXFpMi6x" resolve="node" />
             </node>
@@ -6447,16 +6448,16 @@
                                   </node>
                                   <node concept="3JPx81" id="43wAXFpM0aE" role="2OqNvi">
                                     <node concept="37vLTw" id="43wAXFpM0aF" role="25WWJ7">
-                                      <ref role="3cqZAo" node="43wAXFpLWbr" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8176D" resolve="it" />
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="43wAXFpLWbr" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8176D" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="43wAXFpLWbs" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8176E" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -6519,24 +6520,24 @@
                   <node concept="3clFbS" id="2B_XTD71cjU" role="1bW5cS">
                     <node concept="3clFbF" id="2B_XTD71cpY" role="3cqZAp">
                       <node concept="2YIFZM" id="2B_XTD71cVL" role="3clFbG">
-                        <ref role="37wK5l" to="pbu6:1WlYLwX3YKL" resolve="isNodeNotCovered" />
-                        <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                        <ref role="37wK5l" to="pbu6:7LZDtvhyLYH" resolve="isNodeNotCovered" />
+                        <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                         <node concept="37vLTw" id="2B_XTD72PHq" role="37wK5m">
-                          <ref role="3cqZAo" node="2B_XTD71cjV" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8176F" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2B_XTD71cjV" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8176F" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2B_XTD71cjW" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8176G" role="1tU5fm" />
                   </node>
                 </node>
               </node>
             </node>
             <node concept="2YIFZM" id="2B_XTD717r8" role="3uHU7B">
-              <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-              <ref role="37wK5l" to="pbu6:1WlYLwX3YKL" resolve="isNodeNotCovered" />
+              <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+              <ref role="37wK5l" to="pbu6:7LZDtvhyLYH" resolve="isNodeNotCovered" />
               <node concept="37vLTw" id="43wAXFpMsJH" role="37wK5m">
                 <ref role="3cqZAo" node="43wAXFpMrOa" resolve="node" />
               </node>
@@ -7406,7 +7407,7 @@
                               <node concept="3clFbF" id="5gz1ElMVAdO" role="3cqZAp">
                                 <node concept="2OqwBi" id="5gz1ElMVAvp" role="3clFbG">
                                   <node concept="37vLTw" id="5gz1ElMVAdN" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="5gz1ElMVA8e" resolve="it" />
+                                    <ref role="3cqZAo" node="2FZhxW1aU4g" resolve="it" />
                                   </node>
                                   <node concept="3TrcHB" id="5gz1ElMVAWE" role="2OqNvi">
                                     <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -7414,9 +7415,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5gz1ElMVA8e" role="1bW2Oz">
+                            <node concept="gl6BB" id="2FZhxW1aU4g" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="5gz1ElMVA8f" role="1tU5fm" />
+                              <node concept="2jxLKc" id="2FZhxW1aU4h" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -7638,6 +7639,92 @@
       </node>
     </node>
   </node>
+  <node concept="24kQdi" id="2KEzU_jECqA">
+    <property role="3GE5qa" value="numeric" />
+    <ref role="1XX52x" to="hm2y:5Ys_ngSnA9h" resolve="HexValue" />
+    <node concept="3EZMnI" id="6fDAI2XnWnF" role="2wV5jI">
+      <node concept="3F0ifn" id="6fDAI2XnWnH" role="3EZMnx">
+        <property role="3F0ifm" value="@hex value" />
+        <ref role="1k5W1q" to="itrz:3_9S6lia_no" resolve="iets3PassiveText" />
+        <node concept="pkWqt" id="6fDAI2XriW1" role="pqm2j">
+          <node concept="3clFbS" id="6fDAI2XriW2" role="2VODD2">
+            <node concept="3clFbF" id="6fDAI2Xs3qH" role="3cqZAp">
+              <node concept="2OqwBi" id="6fDAI2XsbtB" role="3clFbG">
+                <node concept="2OqwBi" id="6fDAI2Xs5Wp" role="2Oq$k0">
+                  <node concept="2OqwBi" id="6fDAI2Xs4db" role="2Oq$k0">
+                    <node concept="2OqwBi" id="6fDAI2Xs3KQ" role="2Oq$k0">
+                      <node concept="1Q80Hx" id="6fDAI2Xs3qG" role="2Oq$k0" />
+                      <node concept="liA8E" id="6fDAI2Xs43o" role="2OqNvi">
+                        <ref role="37wK5l" to="cj4x:~EditorContext.getEditorComponent()" resolve="getEditorComponent" />
+                      </node>
+                    </node>
+                    <node concept="liA8E" id="6fDAI2Xs4ur" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                    </node>
+                  </node>
+                  <node concept="liA8E" id="6fDAI2Xs9Yy" role="2OqNvi">
+                    <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
+                  </node>
+                </node>
+                <node concept="liA8E" id="6fDAI2Xsdxe" role="2OqNvi">
+                  <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
+                  <node concept="Xl_RD" id="6fDAI2Xsdxh" role="37wK5m">
+                    <property role="Xl_RC" value="jetbrains.mps.vcs" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2iRfu4" id="6fDAI2Xv1ec" role="2iSdaV" />
+      <node concept="2SsqMj" id="2KEzU_jGitL" role="3EZMnx" />
+    </node>
+  </node>
+  <node concept="22mcaB" id="5JKfLQ96phH">
+    <property role="3GE5qa" value="numeric.number" />
+    <ref role="aqKnT" to="hm2y:2KEzU_jNj4j" resolve="ISupportHexValues" />
+    <node concept="22hDWg" id="5JKfLQ96phI" role="22hAXT">
+      <property role="TrG5h" value="IncompleteHexValue" />
+    </node>
+    <node concept="3eGOop" id="5JKfLQ96phJ" role="3ft7WO">
+      <ref role="3EoQqy" to="hm2y:2KEzU_jNj4j" resolve="ISupportHexValues" />
+      <node concept="ucgPf" id="5JKfLQ96phK" role="3aKz83">
+        <node concept="3clFbS" id="5JKfLQ96phL" role="2VODD2">
+          <node concept="3clFbF" id="5JKfLQ9jxMo" role="3cqZAp">
+            <node concept="1yR$tW" id="5JKfLQ9jxMn" role="3clFbG" />
+          </node>
+        </node>
+      </node>
+      <node concept="16NfWO" id="5JKfLQ96pMh" role="upBLP">
+        <node concept="uGdhv" id="5JKfLQ9g5jk" role="16NeZM">
+          <node concept="3clFbS" id="5JKfLQ9g5jm" role="2VODD2">
+            <node concept="3clFbF" id="5JKfLQ9g5rG" role="3cqZAp">
+              <node concept="2OqwBi" id="5JKfLQ9g60n" role="3clFbG">
+                <node concept="35c_gC" id="5JKfLQ9g5rF" role="2Oq$k0">
+                  <ref role="35c_gD" to="hm2y:2KEzU_jNj4j" resolve="ISupportHexValues" />
+                </node>
+                <node concept="2qgKlT" id="5JKfLQ9g6qa" role="2OqNvi">
+                  <ref role="37wK5l" to="pbu6:5JKfLQ9g2ZR" resolve="getHexPrefix" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="16NL0t" id="5JKfLQ96pVZ" role="upBLP">
+        <node concept="2h3Zct" id="5JKfLQ96q9C" role="16NL0q">
+          <property role="2h4Kg1" value="hexadecimal literal" />
+        </node>
+      </node>
+    </node>
+    <node concept="3VyMlK" id="5JKfLQ96pVk" role="3ft7WO" />
+  </node>
+  <node concept="22mcaB" id="68wLGjptyli">
+    <property role="3GE5qa" value="numeric" />
+    <ref role="aqKnT" to="hm2y:5Ys_ngSnA9h" resolve="HexValue" />
+    <node concept="22hDWj" id="68wLGjptylj" role="22hAXT" />
+  </node>
   <node concept="22mcaB" id="1DSLxNDQ1bz">
     <property role="3GE5qa" value="tuples" />
     <ref role="aqKnT" to="hm2y:S$tO8ocnpq" resolve="TupleValue" />
@@ -7744,54 +7831,5 @@
       </node>
     </node>
   </node>
-  <node concept="24kQdi" id="2KEzU_jECqA">
-    <property role="3GE5qa" value="numeric" />
-    <ref role="1XX52x" to="hm2y:5Ys_ngSnA9h" resolve="HexValue" />
-    <node concept="2SsqMj" id="2KEzU_jGitL" role="2wV5jI" />
-  </node>
-  <node concept="22mcaB" id="5JKfLQ96phH">
-    <property role="3GE5qa" value="numeric.number" />
-    <ref role="aqKnT" to="hm2y:2KEzU_jNj4j" resolve="ISupportHexValues" />
-    <node concept="22hDWg" id="5JKfLQ96phI" role="22hAXT">
-      <property role="TrG5h" value="IncompleteHexValue" />
-    </node>
-    <node concept="3eGOop" id="5JKfLQ96phJ" role="3ft7WO">
-      <ref role="3EoQqy" to="hm2y:2KEzU_jNj4j" resolve="ISupportHexValues" />
-      <node concept="ucgPf" id="5JKfLQ96phK" role="3aKz83">
-        <node concept="3clFbS" id="5JKfLQ96phL" role="2VODD2">
-          <node concept="3clFbF" id="5JKfLQ9jxMo" role="3cqZAp">
-            <node concept="1yR$tW" id="5JKfLQ9jxMn" role="3clFbG" />
-          </node>
-        </node>
-      </node>
-      <node concept="16NfWO" id="5JKfLQ96pMh" role="upBLP">
-        <node concept="uGdhv" id="5JKfLQ9g5jk" role="16NeZM">
-          <node concept="3clFbS" id="5JKfLQ9g5jm" role="2VODD2">
-            <node concept="3clFbF" id="5JKfLQ9g5rG" role="3cqZAp">
-              <node concept="2OqwBi" id="5JKfLQ9g60n" role="3clFbG">
-                <node concept="35c_gC" id="5JKfLQ9g5rF" role="2Oq$k0">
-                  <ref role="35c_gD" to="hm2y:2KEzU_jNj4j" resolve="ISupportHexValues" />
-                </node>
-                <node concept="2qgKlT" id="5JKfLQ9g6qa" role="2OqNvi">
-                  <ref role="37wK5l" to="pbu6:5JKfLQ9g2ZR" resolve="getHexPrefix" />
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
-      </node>
-      <node concept="16NL0t" id="5JKfLQ96pVZ" role="upBLP">
-        <node concept="2h3Zct" id="5JKfLQ96q9C" role="16NL0q">
-          <property role="2h4Kg1" value="hexadecimal literal" />
-        </node>
-      </node>
-    </node>
-    <node concept="3VyMlK" id="5JKfLQ96pVk" role="3ft7WO" />
-  </node>
-  <node concept="22mcaB" id="68wLGjptyli">
-    <property role="3GE5qa" value="numeric" />
-    <ref role="aqKnT" to="hm2y:5Ys_ngSnA9h" resolve="HexValue" />
-    <node concept="22hDWj" id="68wLGjptylj" role="22hAXT" />
-  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/intentions.mps
index a89c7de888..a9d4ba231e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/intentions.mps
@@ -23,6 +23,9 @@
     <import index="gdgh" ref="r:e4d9478b-ae0e-416e-be60-73d136571015(org.iets3.core.base.behavior)" />
     <import index="4kwy" ref="r:657c9fde-2f36-4e61-ae17-20f02b8630ad(org.iets3.core.base.structure)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
+    <import index="ykol" ref="8e98f4e2-decf-4e97-bf80-9109e8b759ee/java:jetbrains.mps.smodel.constraints(jetbrains.mps.lang.constraints.rules.runtime/)" />
+    <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
+    <import index="pdwk" ref="8e98f4e2-decf-4e97-bf80-9109e8b759ee/java:jetbrains.mps.core.aspects.constraints.rules.kinds(jetbrains.mps.lang.constraints.rules.runtime/)" />
     <import index="3673" ref="r:78633c85-d020-485e-aaa3-59e2daa3b826(com.mbeddr.mpsutil.interpreter.structure)" implicit="true" />
   </imports>
   <registry>
@@ -65,6 +68,9 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+        <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
+      </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -159,6 +165,7 @@
       <concept id="8974276187400348177" name="jetbrains.mps.lang.access.structure.ExecuteCommandStatement" flags="nn" index="1QHqEO" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -299,7 +306,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
     </language>
@@ -582,7 +588,7 @@
                     <node concept="3clFbF" id="7_$HJtBtOwl" role="3cqZAp">
                       <node concept="2OqwBi" id="7_$HJtBtOwm" role="3clFbG">
                         <node concept="37vLTw" id="7_$HJtBtOwn" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7_$HJtBtOwp" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8176H" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7_$HJtBtOwo" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:7_$HJtBs0P$" resolve="isSynthesized" />
@@ -590,9 +596,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7_$HJtBtOwp" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8176H" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7_$HJtBtOwq" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8176I" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -651,7 +657,7 @@
                     <node concept="3clFbF" id="69zaTr1W0aA" role="3cqZAp">
                       <node concept="2OqwBi" id="69zaTr1W0zH" role="3clFbG">
                         <node concept="37vLTw" id="69zaTr1W0a_" role="2Oq$k0">
-                          <ref role="3cqZAo" node="69zaTr1W086" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8176J" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="69zaTr1W0Ed" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:69zaTr1W0u$" resolve="isGeneric" />
@@ -659,9 +665,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="69zaTr1W086" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8176J" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="69zaTr1W087" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8176K" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1865,47 +1871,137 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbF" id="4FREEt6vhKg" role="3cqZAp">
-          <node concept="1Wc70l" id="4FREEt6vga8" role="3clFbG">
-            <node concept="2YIFZM" id="4FREEt6vga9" role="3uHU7B">
-              <ref role="1Pybhc" to="ykok:~ModelConstraints" resolve="ModelConstraints" />
-              <ref role="37wK5l" to="ykok:~ModelConstraints.canBeChild(org.jetbrains.mps.openapi.model.SNode,org.jetbrains.mps.openapi.language.SAbstractConcept,org.jetbrains.mps.openapi.language.SContainmentLink,jetbrains.mps.smodel.runtime.CheckingNodeContext)" resolve="canBeChild" />
-              <node concept="2OqwBi" id="4FREEt6vgaa" role="37wK5m">
-                <node concept="37vLTw" id="4FREEt6vhSD" role="2Oq$k0">
-                  <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+        <node concept="3cpWs8" id="SAzYS3hHlv" role="3cqZAp">
+          <node concept="3cpWsn" id="SAzYS3hHlw" role="3cpWs9">
+            <property role="TrG5h" value="containmentContext" />
+            <node concept="3uibUv" id="SAzYS3hHlx" role="1tU5fm">
+              <ref role="3uigEE" to="pdwk:~ContainmentContext" resolve="ContainmentContext" />
+            </node>
+            <node concept="2OqwBi" id="1PoRi1pBgG8" role="33vP2m">
+              <node concept="2OqwBi" id="1PoRi1pBfb3" role="2Oq$k0">
+                <node concept="2OqwBi" id="1PoRi1pBeJq" role="2Oq$k0">
+                  <node concept="2OqwBi" id="1PoRi1pBc5E" role="2Oq$k0">
+                    <node concept="2ShNRf" id="1PoRi1pB9Yy" role="2Oq$k0">
+                      <node concept="1pGfFk" id="1PoRi1pBbWD" role="2ShVmc">
+                        <property role="373rjd" value="true" />
+                        <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.&lt;init&gt;()" resolve="ContainmentContext.Builder" />
+                      </node>
+                    </node>
+                    <node concept="liA8E" id="1PoRi1pBcfZ" role="2OqNvi">
+                      <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.parentNode(org.jetbrains.mps.openapi.model.SNode)" resolve="parentNode" />
+                      <node concept="2OqwBi" id="1PoRi1pBcQ_" role="37wK5m">
+                        <node concept="37vLTw" id="1PoRi1pBcGU" role="2Oq$k0">
+                          <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+                        </node>
+                        <node concept="1mfA1w" id="1PoRi1pBeG3" role="2OqNvi" />
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="liA8E" id="1PoRi1pBePp" role="2OqNvi">
+                    <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.childConcept(org.jetbrains.mps.openapi.language.SAbstractConcept)" resolve="childConcept" />
+                    <node concept="37vLTw" id="1PoRi1pBeYF" role="37wK5m">
+                      <ref role="3cqZAo" node="4FREEt6vhHF" resolve="replacementConcept" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="liA8E" id="1PoRi1pBfj9" role="2OqNvi">
+                  <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.link(org.jetbrains.mps.openapi.language.SContainmentLink)" resolve="link" />
+                  <node concept="2OqwBi" id="1PoRi1pBfQT" role="37wK5m">
+                    <node concept="37vLTw" id="1PoRi1pBfM7" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+                    </node>
+                    <node concept="2NL2c5" id="1PoRi1pBfWj" role="2OqNvi" />
+                  </node>
                 </node>
-                <node concept="1mfA1w" id="4FREEt6vgac" role="2OqNvi" />
               </node>
-              <node concept="37vLTw" id="4FREEt6viIV" role="37wK5m">
-                <ref role="3cqZAo" node="4FREEt6vhHF" resolve="replacementConcept" />
+              <node concept="liA8E" id="1PoRi1pBgT_" role="2OqNvi">
+                <ref role="37wK5l" to="pdwk:~ContainmentContext$Builder.build()" resolve="build" />
               </node>
-              <node concept="2OqwBi" id="4FREEt6vgae" role="37wK5m">
-                <node concept="37vLTw" id="4FREEt6viun" role="2Oq$k0">
-                  <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="1PoRi1pBiqK" role="3cqZAp">
+          <node concept="3cpWsn" id="1PoRi1pBiqL" role="3cpWs9">
+            <property role="TrG5h" value="ancestorContext" />
+            <node concept="3uibUv" id="1PoRi1pBiqM" role="1tU5fm">
+              <ref role="3uigEE" to="pdwk:~CanBeAncestorContext" resolve="CanBeAncestorContext" />
+            </node>
+            <node concept="2OqwBi" id="4z0AnX4Iwxu" role="33vP2m">
+              <node concept="2OqwBi" id="1PoRi1pBle6" role="2Oq$k0">
+                <node concept="2OqwBi" id="1PoRi1pBkFK" role="2Oq$k0">
+                  <node concept="2OqwBi" id="1PoRi1pBjGB" role="2Oq$k0">
+                    <node concept="2OqwBi" id="2fVeByIvNwB" role="2Oq$k0">
+                      <node concept="2ShNRf" id="1PoRi1pBj92" role="2Oq$k0">
+                        <node concept="1pGfFk" id="1PoRi1pBjx3" role="2ShVmc">
+                          <property role="373rjd" value="true" />
+                          <ref role="37wK5l" to="pdwk:~CanBeAncestorContext$Builder.&lt;init&gt;()" resolve="CanBeAncestorContext.Builder" />
+                        </node>
+                      </node>
+                      <node concept="liA8E" id="2fVeByIvNMZ" role="2OqNvi">
+                        <ref role="37wK5l" to="pdwk:~CanBeAncestorContext$Builder.ancestorNode(org.jetbrains.mps.openapi.model.SNode)" resolve="ancestorNode" />
+                        <node concept="37vLTw" id="2fVeByIvPCd" role="37wK5m">
+                          <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="liA8E" id="1PoRi1pBjTR" role="2OqNvi">
+                      <ref role="37wK5l" to="pdwk:~CanBeAncestorContext$Builder.parentNode(org.jetbrains.mps.openapi.model.SNode)" resolve="parentNode" />
+                      <node concept="2OqwBi" id="1PoRi1pBkuw" role="37wK5m">
+                        <node concept="37vLTw" id="1PoRi1pBkpx" role="2Oq$k0">
+                          <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+                        </node>
+                        <node concept="1mfA1w" id="1PoRi1pBk_i" role="2OqNvi" />
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="liA8E" id="1PoRi1pBkOE" role="2OqNvi">
+                    <ref role="37wK5l" to="pdwk:~CanBeAncestorContext$Builder.childConcept(org.jetbrains.mps.openapi.language.SAbstractConcept)" resolve="childConcept" />
+                    <node concept="37vLTw" id="1PoRi1pBl0R" role="37wK5m">
+                      <ref role="3cqZAo" node="4FREEt6vhHF" resolve="replacementConcept" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="liA8E" id="1PoRi1pBlvR" role="2OqNvi">
+                  <ref role="37wK5l" to="pdwk:~CanBeAncestorContext$Builder.link(org.jetbrains.mps.openapi.language.SContainmentLink)" resolve="link" />
+                  <node concept="2OqwBi" id="1PoRi1pBmge" role="37wK5m">
+                    <node concept="37vLTw" id="1PoRi1pBm1K" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+                    </node>
+                    <node concept="2NL2c5" id="1PoRi1pBmwD" role="2OqNvi" />
+                  </node>
                 </node>
-                <node concept="2NL2c5" id="4FREEt6vgag" role="2OqNvi" />
               </node>
-              <node concept="10Nm6u" id="4FREEt6vgah" role="37wK5m" />
+              <node concept="liA8E" id="4z0AnX4IwPm" role="2OqNvi">
+                <ref role="37wK5l" to="pdwk:~CanBeAncestorContext$Builder.build()" resolve="build" />
+              </node>
             </node>
-            <node concept="2YIFZM" id="4FREEt6vgai" role="3uHU7w">
-              <ref role="37wK5l" to="ykok:~ModelConstraints.canBeAncestor(org.jetbrains.mps.openapi.model.SNode,org.jetbrains.mps.openapi.language.SAbstractConcept,org.jetbrains.mps.openapi.language.SContainmentLink,jetbrains.mps.smodel.runtime.CheckingNodeContext)" resolve="canBeAncestor" />
-              <ref role="1Pybhc" to="ykok:~ModelConstraints" resolve="ModelConstraints" />
-              <node concept="2OqwBi" id="4FREEt6vgaj" role="37wK5m">
-                <node concept="37vLTw" id="4FREEt6vifn" role="2Oq$k0">
-                  <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+          </node>
+        </node>
+        <node concept="3clFbF" id="4FREEt6vhKg" role="3cqZAp">
+          <node concept="1Wc70l" id="4FREEt6vga8" role="3clFbG">
+            <node concept="2OqwBi" id="4z0AnX4IM1V" role="3uHU7B">
+              <node concept="2YIFZM" id="SAzYS3hF7Z" role="2Oq$k0">
+                <ref role="37wK5l" to="ykol:~ConstraintsCanBeFacade.checkCanBeChild(jetbrains.mps.core.aspects.constraints.rules.kinds.ContainmentContext)" resolve="checkCanBeChild" />
+                <ref role="1Pybhc" to="ykol:~ConstraintsCanBeFacade" resolve="ConstraintsCanBeFacade" />
+                <node concept="37vLTw" id="1PoRi1pBh7a" role="37wK5m">
+                  <ref role="3cqZAo" node="SAzYS3hHlw" resolve="containmentContext" />
                 </node>
-                <node concept="1mfA1w" id="4FREEt6vgal" role="2OqNvi" />
               </node>
-              <node concept="37vLTw" id="4FREEt6viSb" role="37wK5m">
-                <ref role="3cqZAo" node="4FREEt6vhHF" resolve="replacementConcept" />
+              <node concept="liA8E" id="4z0AnX4INvt" role="2OqNvi">
+                <ref role="37wK5l" to="33ny:~List.isEmpty()" resolve="isEmpty" />
               </node>
-              <node concept="2OqwBi" id="4FREEt6vgan" role="37wK5m">
-                <node concept="37vLTw" id="4FREEt6vijt" role="2Oq$k0">
-                  <ref role="3cqZAo" node="4FREEt6vhH9" resolve="node" />
+            </node>
+            <node concept="2OqwBi" id="4z0AnX4IOPH" role="3uHU7w">
+              <node concept="2YIFZM" id="1PoRi1pBi85" role="2Oq$k0">
+                <ref role="37wK5l" to="ykol:~ConstraintsCanBeFacade.checkCanBeAncestor(jetbrains.mps.core.aspects.constraints.rules.kinds.CanBeAncestorContext)" resolve="checkCanBeAncestor" />
+                <ref role="1Pybhc" to="ykol:~ConstraintsCanBeFacade" resolve="ConstraintsCanBeFacade" />
+                <node concept="37vLTw" id="4z0AnX4Ixzo" role="37wK5m">
+                  <ref role="3cqZAo" node="1PoRi1pBiqL" resolve="ancestorContext" />
                 </node>
-                <node concept="2NL2c5" id="4FREEt6vgap" role="2OqNvi" />
               </node>
-              <node concept="10Nm6u" id="4FREEt6vgaq" role="37wK5m" />
+              <node concept="liA8E" id="4z0AnX4IQqc" role="2OqNvi">
+                <ref role="37wK5l" to="33ny:~List.isEmpty()" resolve="isEmpty" />
+              </node>
             </node>
           </node>
         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/migration.mps
index e6e01f0317..c4898ade1f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/migration.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="90746344-04fd-4286-97d5-b46ae6a81709" name="jetbrains.mps.lang.migration" version="2" />
     <use id="9882f4ad-1955-46fe-8269-94189e5dbbf2" name="jetbrains.mps.lang.migration.util" version="-1" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="-1" />
     <use id="d4615e3b-d671-4ba9-af01-2b78369b0ba7" name="jetbrains.mps.lang.pattern" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -81,7 +81,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -96,12 +96,13 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -178,7 +179,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -265,7 +266,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
     </language>
   </registry>
   <node concept="3SyAh_" id="xG0f0hk3Yf">
@@ -13073,7 +13073,7 @@
                             <node concept="37vLTI" id="5Iz9nTHJecv" role="3clFbG">
                               <node concept="2OqwBi" id="5Iz9nTHJtDh" role="37vLTx">
                                 <node concept="37vLTw" id="5Iz9nTHJlNT" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5HOQcpHJZ0i" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8177f" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5Iz9nTHJAs3" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:24Fec4173Ut" resolve="optionValue" />
@@ -13081,7 +13081,7 @@
                               </node>
                               <node concept="2OqwBi" id="5Iz9nTHIVJ3" role="37vLTJ">
                                 <node concept="37vLTw" id="5Iz9nTHIOnm" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5HOQcpHJZ0i" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8177f" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5Iz9nTHJ2M4" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:4rZeNQ6NgXF" resolve="expr" />
@@ -13094,7 +13094,7 @@
                               <node concept="10Nm6u" id="5Iz9nTHJMge" role="37vLTx" />
                               <node concept="2OqwBi" id="5Iz9nTHJIsV" role="37vLTJ">
                                 <node concept="37vLTw" id="5Iz9nTHJIsW" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5HOQcpHJZ0i" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8177f" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5Iz9nTHJM3e" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:24Fec4173Ut" resolve="optionValue" />
@@ -13107,7 +13107,7 @@
                           <node concept="10Nm6u" id="7759dY8XFmS" role="3uHU7w" />
                           <node concept="2OqwBi" id="7759dY8XE$o" role="3uHU7B">
                             <node concept="37vLTw" id="7759dY8XEj1" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5HOQcpHJZ0i" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8177f" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="7759dY8XF6s" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:4rZeNQ6NgXF" resolve="expr" />
@@ -13116,9 +13116,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5HOQcpHJZ0i" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8177f" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5HOQcpHJZ0j" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8177g" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/plugin.mps
index 8bcd2cb5df..aa73065e1b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/plugin.mps
@@ -331,6 +331,7 @@
       <concept id="8974276187400348181" name="jetbrains.mps.lang.access.structure.ExecuteLightweightCommandStatement" flags="nn" index="1QHqEK" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
         <child id="1235746996653" name="function" index="2SgG2M" />
       </concept>
@@ -519,7 +520,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
         <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -5374,7 +5374,7 @@
                   <node concept="3clFbF" id="5bElvpNid68" role="3cqZAp">
                     <node concept="3K4zz7" id="5bElvpNie9a" role="3clFbG">
                       <node concept="37vLTw" id="5bElvpNiegH" role="3K4E3e">
-                        <ref role="3cqZAo" node="5bElvpNicmT" resolve="next" />
+                        <ref role="3cqZAo" node="4z0AnX8177h" resolve="next" />
                       </node>
                       <node concept="37vLTw" id="5bElvpNienQ" role="3K4GZi">
                         <ref role="3cqZAo" node="5bElvpNicmR" resolve="min" />
@@ -5382,7 +5382,7 @@
                       <node concept="1rXfSq" id="5bElvpNid67" role="3K4Cdx">
                         <ref role="37wK5l" node="2NHHcg2EXov" resolve="less" />
                         <node concept="37vLTw" id="5bElvpNidvP" role="37wK5m">
-                          <ref role="3cqZAo" node="5bElvpNicmT" resolve="next" />
+                          <ref role="3cqZAo" node="4z0AnX8177h" resolve="next" />
                         </node>
                         <node concept="37vLTw" id="5bElvpNidKr" role="37wK5m">
                           <ref role="3cqZAo" node="5bElvpNicmR" resolve="min" />
@@ -5395,9 +5395,9 @@
                   <property role="TrG5h" value="min" />
                   <node concept="17QB3L" id="5bElvpNicFT" role="1tU5fm" />
                 </node>
-                <node concept="Rh6nW" id="5bElvpNicmT" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8177h" role="1bW2Oz">
                   <property role="TrG5h" value="next" />
-                  <node concept="2jxLKc" id="5bElvpNicmU" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8177i" role="1tU5fm" />
                 </node>
               </node>
               <node concept="37vLTw" id="3tudP_AbjPj" role="1MDeny">
@@ -5434,7 +5434,7 @@
                   <node concept="3clFbF" id="5bElvpNify_" role="3cqZAp">
                     <node concept="3K4zz7" id="5bElvpNifyA" role="3clFbG">
                       <node concept="37vLTw" id="5bElvpNifyB" role="3K4E3e">
-                        <ref role="3cqZAo" node="5bElvpNifyI" resolve="next" />
+                        <ref role="3cqZAo" node="4z0AnX8177j" resolve="next" />
                       </node>
                       <node concept="37vLTw" id="5bElvpNifyC" role="3K4GZi">
                         <ref role="3cqZAo" node="5bElvpNifyG" resolve="min" />
@@ -5442,7 +5442,7 @@
                       <node concept="1rXfSq" id="5bElvpNifyD" role="3K4Cdx">
                         <ref role="37wK5l" node="2NHHcg2F6z3" resolve="greater" />
                         <node concept="37vLTw" id="5bElvpNifyE" role="37wK5m">
-                          <ref role="3cqZAo" node="5bElvpNifyI" resolve="next" />
+                          <ref role="3cqZAo" node="4z0AnX8177j" resolve="next" />
                         </node>
                         <node concept="37vLTw" id="5bElvpNifyF" role="37wK5m">
                           <ref role="3cqZAo" node="5bElvpNifyG" resolve="min" />
@@ -5455,9 +5455,9 @@
                   <property role="TrG5h" value="min" />
                   <node concept="17QB3L" id="5bElvpNifyH" role="1tU5fm" />
                 </node>
-                <node concept="Rh6nW" id="5bElvpNifyI" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8177j" role="1bW2Oz">
                   <property role="TrG5h" value="next" />
-                  <node concept="2jxLKc" id="5bElvpNifyJ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8177k" role="1tU5fm" />
                 </node>
               </node>
               <node concept="37vLTw" id="3tudP_AbjPT" role="1MDeny">
@@ -5494,7 +5494,7 @@
                   <node concept="3clFbF" id="5bElvpNhVHi" role="3cqZAp">
                     <node concept="3K4zz7" id="5bElvpNhXxi" role="3clFbG">
                       <node concept="37vLTw" id="5bElvpNhXFT" role="3K4E3e">
-                        <ref role="3cqZAo" node="5bElvpNhV9E" resolve="next" />
+                        <ref role="3cqZAo" node="4z0AnX8177l" resolve="next" />
                       </node>
                       <node concept="37vLTw" id="5bElvpNhXQf" role="3K4GZi">
                         <ref role="3cqZAo" node="5bElvpNhV9C" resolve="max" />
@@ -5504,7 +5504,7 @@
                           <ref role="3cqZAo" node="5bElvpNhV9C" resolve="max" />
                         </node>
                         <node concept="37vLTw" id="5bElvpNhVHh" role="3uHU7B">
-                          <ref role="3cqZAo" node="5bElvpNhV9E" resolve="next" />
+                          <ref role="3cqZAo" node="4z0AnX8177l" resolve="next" />
                         </node>
                       </node>
                     </node>
@@ -5514,9 +5514,9 @@
                   <property role="TrG5h" value="max" />
                   <node concept="10Oyi0" id="5bElvpNhVsg" role="1tU5fm" />
                 </node>
-                <node concept="Rh6nW" id="5bElvpNhV9E" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8177l" role="1bW2Oz">
                   <property role="TrG5h" value="next" />
-                  <node concept="2jxLKc" id="5bElvpNhV9F" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8177m" role="1tU5fm" />
                 </node>
               </node>
               <node concept="3cmrfG" id="5bElvpNhVdG" role="1MDeny">
@@ -5833,8 +5833,8 @@
       <node concept="3clFbS" id="2udM7u8XFzF" role="3clF47">
         <node concept="3clFbF" id="2udM7u8XFG6" role="3cqZAp">
           <node concept="2YIFZM" id="2udM7u8XFJs" role="3clFbG">
-            <ref role="37wK5l" to="pbu6:4_qY3E5KWHU" resolve="reset" />
-            <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+            <ref role="37wK5l" to="pbu6:7LZDtvhyLN0" resolve="reset" />
+            <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
           </node>
         </node>
         <node concept="3cpWs8" id="3C$MSDk$deE" role="3cqZAp">
@@ -11375,7 +11375,7 @@
                             <node concept="2OqwBi" id="5I_8B5uitzu" role="3uHU7B">
                               <node concept="2OqwBi" id="5I_8B5uisz3" role="2Oq$k0">
                                 <node concept="37vLTw" id="5I_8B5uisfp" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2nByCcxZWOU" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8177n" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5I_8B5uit0i" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:4rZeNQ6OJ5M" resolve="expr" />
@@ -11391,7 +11391,7 @@
                               <node concept="2OqwBi" id="5I_8B5uioBI" role="2Oq$k0">
                                 <node concept="2OqwBi" id="5I_8B5uinCx" role="2Oq$k0">
                                   <node concept="37vLTw" id="5I_8B5uinko" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="2nByCcxZWOU" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8177n" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="5I_8B5uio42" role="2OqNvi">
                                     <ref role="3Tt5mk" to="hm2y:4rZeNQ6OJ5M" resolve="expr" />
@@ -11404,7 +11404,7 @@
                                   <node concept="2OqwBi" id="5I_8B5uiyEJ" role="25KhWn">
                                     <node concept="2OqwBi" id="5I_8B5uixe_" role="2Oq$k0">
                                       <node concept="37vLTw" id="5I_8B5uiwLG" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="2nByCcxZWOU" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8177n" resolve="it" />
                                       </node>
                                       <node concept="1mfA1w" id="5I_8B5uiy0$" role="2OqNvi" />
                                     </node>
@@ -11416,9 +11416,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2nByCcxZWOU" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177n" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2nByCcxZWOV" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177o" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -11495,7 +11495,7 @@
                           <node concept="2OqwBi" id="5I_8B5uimz2" role="3clFbG">
                             <node concept="2OqwBi" id="5I_8B5uimz3" role="2Oq$k0">
                               <node concept="37vLTw" id="5I_8B5uimz4" role="2Oq$k0">
-                                <ref role="3cqZAo" node="5I_8B5uimz7" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8177p" resolve="it" />
                               </node>
                               <node concept="2NL2c5" id="4llm6dDWJPh" role="2OqNvi" />
                             </node>
@@ -11505,9 +11505,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5I_8B5uimz7" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177p" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5I_8B5uimz8" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177q" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -11585,7 +11585,7 @@
                             <node concept="2OqwBi" id="5I_8B5ui00L" role="3fr31v">
                               <node concept="2OqwBi" id="5I_8B5ui00M" role="2Oq$k0">
                                 <node concept="37vLTw" id="5I_8B5ui00N" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5I_8B5ui00R" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8177r" resolve="it" />
                                 </node>
                                 <node concept="1mfA1w" id="5I_8B5ui00O" role="2OqNvi" />
                               </node>
@@ -11598,9 +11598,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5I_8B5ui00R" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177r" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5I_8B5ui00S" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177s" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -11677,7 +11677,7 @@
                           <node concept="2OqwBi" id="6VfJ$$eJWm_" role="3clFbG">
                             <node concept="2OqwBi" id="6VfJ$$eJWmA" role="2Oq$k0">
                               <node concept="37vLTw" id="6VfJ$$eJWmB" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6VfJ$$eJWmF" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8177t" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="6VfJ$$eJWmC" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:4rZeNQ6OJ5M" resolve="expr" />
@@ -11691,9 +11691,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="6VfJ$$eJWmF" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177t" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6VfJ$$eJWmG" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177u" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -11770,7 +11770,7 @@
                           <node concept="2OqwBi" id="2nByCcy04EG" role="3clFbG">
                             <node concept="2OqwBi" id="2nByCcy04EH" role="2Oq$k0">
                               <node concept="37vLTw" id="2nByCcy04EI" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2nByCcy04EM" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8177v" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="2nByCcy04EJ" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:4rZeNQ6OJ5M" resolve="expr" />
@@ -11784,9 +11784,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2nByCcy04EM" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177v" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2nByCcy04EN" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177w" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -11863,7 +11863,7 @@
                           <node concept="2OqwBi" id="2nByCcy055m" role="3clFbG">
                             <node concept="2OqwBi" id="2nByCcy055n" role="2Oq$k0">
                               <node concept="37vLTw" id="2nByCcy055o" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2nByCcy055s" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8177x" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="2nByCcy055p" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:4rZeNQ6OJ5M" resolve="expr" />
@@ -11877,9 +11877,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2nByCcy055s" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177x" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2nByCcy055t" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177y" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -11997,7 +11997,7 @@
                         <node concept="3clFbF" id="73INLerZ8hK" role="3cqZAp">
                           <node concept="2OqwBi" id="73INLerZ8hL" role="3clFbG">
                             <node concept="37vLTw" id="73INLerZ8hM" role="2Oq$k0">
-                              <ref role="3cqZAo" node="73INLerZ8hO" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8177z" resolve="it" />
                             </node>
                             <node concept="liA8E" id="73INLerZ8hN" role="2OqNvi">
                               <ref role="37wK5l" node="73INLerZ8i4" resolve="getPriorityLevel" />
@@ -12005,9 +12005,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="73INLerZ8hO" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177z" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="73INLerZ8hP" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177$" role="1tU5fm" />
                       </node>
                     </node>
                     <node concept="1nlBCl" id="73INLerZ8hQ" role="2S7zOq">
@@ -12942,7 +12942,7 @@
                       <node concept="3clFbF" id="UwUtc1okwd" role="3cqZAp">
                         <node concept="2OqwBi" id="UwUtc1okwe" role="3clFbG">
                           <node concept="37vLTw" id="UwUtc1okwf" role="2Oq$k0">
-                            <ref role="3cqZAo" node="UwUtc1okwj" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8177_" resolve="it" />
                           </node>
                           <node concept="liA8E" id="UwUtc1okwg" role="2OqNvi">
                             <ref role="37wK5l" node="UwUtc1ny1F" resolve="proposals" />
@@ -12956,9 +12956,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="UwUtc1okwj" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8177_" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="UwUtc1okwk" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8177A" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -12968,13 +12968,13 @@
                   <node concept="3clFbS" id="UwUtc1okwn" role="1bW5cS">
                     <node concept="3clFbF" id="UwUtc1okwo" role="3cqZAp">
                       <node concept="37vLTw" id="UwUtc1okwq" role="3clFbG">
-                        <ref role="3cqZAo" node="UwUtc1okws" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8177B" resolve="it" />
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="UwUtc1okws" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8177B" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="UwUtc1okwt" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8177C" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="1nlBCl" id="UwUtc1okwu" role="2S7zOq">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/structure.mps
index d1e3f5e178..5271392c09 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/structure.mps
@@ -2285,10 +2285,6 @@
     <property role="3GE5qa" value="numeric.number" />
     <property role="TrG5h" value="ISupportHexValues" />
   </node>
-  <node concept="PlHQZ" id="3eH6BL2TJIw">
-    <property role="EcuMT" value="3723661587905969056" />
-    <property role="TrG5h" value="IAssignable" />
-  </node>
   <node concept="1TIwiD" id="5Ys_ngSnA9h">
     <property role="EcuMT" value="6889545856364470865" />
     <property role="3GE5qa" value="numeric" />
@@ -2320,5 +2316,9 @@
       </node>
     </node>
   </node>
+  <node concept="PlHQZ" id="3eH6BL2TJIw">
+    <property role="EcuMT" value="3723661587905969056" />
+    <property role="TrG5h" value="IAssignable" />
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/typesystem.mps
index 5245706f2f..a0a08c77bd 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/models/typesystem.mps
@@ -54,7 +54,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -67,9 +67,6 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
-      <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
-        <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
-      </concept>
       <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
         <child id="1145553007750" name="creator" index="2ShVmc" />
       </concept>
@@ -99,7 +96,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -160,7 +157,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -184,7 +181,7 @@
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="7024111702304501416" name="jetbrains.mps.baseLanguage.structure.OrAssignmentExpression" flags="nn" index="3vZ8r8" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -211,6 +208,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
         <child id="1235746996653" name="function" index="2SgG2M" />
         <child id="1235747002942" name="parameter" index="2SgHGx" />
@@ -449,7 +447,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -496,7 +494,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
         <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -646,26 +643,6 @@
                     </node>
                   </node>
                 </node>
-                <node concept="1Wc70l" id="TrLxV$B918" role="3clFbw">
-                  <node concept="3fqX7Q" id="TrLxV$BBr0" role="3uHU7w">
-                    <node concept="2OqwBi" id="TrLxV$BBr2" role="3fr31v">
-                      <node concept="37vLTw" id="TrLxV$BBr3" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7Wtc_Q2kRy5" resolve="wrappedOpType" />
-                      </node>
-                      <node concept="1mIQ4w" id="TrLxV$BBr4" role="2OqNvi">
-                        <node concept="chp4Y" id="TrLxV$BBr5" role="cj9EA">
-                          <ref role="cht4Q" to="tpd4:hfSilrT" resolve="RuntimeErrorType" />
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                  <node concept="3y3z36" id="7Wtc_Q2kU3O" role="3uHU7B">
-                    <node concept="37vLTw" id="7Wtc_Q2kTVq" role="3uHU7B">
-                      <ref role="3cqZAo" node="7Wtc_Q2kRy5" resolve="wrappedOpType" />
-                    </node>
-                    <node concept="10Nm6u" id="7Wtc_Q2kU3V" role="3uHU7w" />
-                  </node>
-                </node>
                 <node concept="9aQIb" id="7Wtc_Q2kUlm" role="9aQIa">
                   <node concept="3clFbS" id="7Wtc_Q2kUln" role="9aQI4">
                     <node concept="3clFbJ" id="5ya_dKpNBCV" role="3cqZAp">
@@ -1548,6 +1525,26 @@
                     </node>
                   </node>
                 </node>
+                <node concept="1Wc70l" id="TrLxV$B918" role="3clFbw">
+                  <node concept="3fqX7Q" id="TrLxV$BBr0" role="3uHU7w">
+                    <node concept="2OqwBi" id="TrLxV$BBr2" role="3fr31v">
+                      <node concept="37vLTw" id="TrLxV$BBr3" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7Wtc_Q2kRy5" resolve="wrappedOpType" />
+                      </node>
+                      <node concept="1mIQ4w" id="TrLxV$BBr4" role="2OqNvi">
+                        <node concept="chp4Y" id="TrLxV$BBr5" role="cj9EA">
+                          <ref role="cht4Q" to="tpd4:hfSilrT" resolve="RuntimeErrorType" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="3y3z36" id="7Wtc_Q2kU3O" role="3uHU7B">
+                    <node concept="37vLTw" id="7Wtc_Q2kTVq" role="3uHU7B">
+                      <ref role="3cqZAo" node="7Wtc_Q2kRy5" resolve="wrappedOpType" />
+                    </node>
+                    <node concept="10Nm6u" id="7Wtc_Q2kU3V" role="3uHU7w" />
+                  </node>
+                </node>
               </node>
               <node concept="3clFbH" id="7KDVkAElWiH" role="3cqZAp" />
             </node>
@@ -3011,7 +3008,7 @@
                         <node concept="TSZUe" id="5aHkq2w3izl" role="2OqNvi">
                           <node concept="2OqwBi" id="5aHkq2w3izm" role="25WWJ7">
                             <node concept="37vLTw" id="5aHkq2w3izn" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5aHkq2w3izp" resolve="it" />
+                              <ref role="3cqZAo" node="EsIH9l2tiE" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="5aHkq2w3izo" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:69zaTr1V8fI" resolve="expr" />
@@ -3021,9 +3018,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5aHkq2w3izp" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l2tiE" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5aHkq2w3izq" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l2tiF" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -3170,7 +3167,7 @@
                                           <node concept="TSZUe" id="5aHkq2wa6L2" role="2OqNvi">
                                             <node concept="2OqwBi" id="5aHkq2wa8uE" role="25WWJ7">
                                               <node concept="37vLTw" id="5aHkq2wa7su" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="5aHkq2wa22E" resolve="it" />
+                                                <ref role="3cqZAo" node="EsIH9l2tiG" resolve="it" />
                                               </node>
                                               <node concept="1$rogu" id="5aHkq2wa95T" role="2OqNvi" />
                                             </node>
@@ -3178,9 +3175,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="5aHkq2wa22E" role="1bW2Oz">
+                                    <node concept="gl6BB" id="EsIH9l2tiG" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="5aHkq2wa22F" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="EsIH9l2tiH" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -3850,7 +3847,7 @@
                           <node concept="3fqX7Q" id="7ZvWWnqM20L" role="3clFbG">
                             <node concept="2OqwBi" id="7ZvWWnqM20M" role="3fr31v">
                               <node concept="37vLTw" id="7ZvWWnqM20N" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7ZvWWnqM20Q" resolve="it" />
+                                <ref role="3cqZAo" node="EsIH9l2tiI" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="7ZvWWnqM20O" role="2OqNvi">
                                 <node concept="chp4Y" id="7ZvWWnqM20P" role="cj9EA">
@@ -3861,9 +3858,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="7ZvWWnqM20Q" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l2tiI" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="7ZvWWnqM20R" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l2tiJ" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3969,7 +3966,7 @@
                     <node concept="3clFbF" id="7ZvWWnqLX0Z" role="3cqZAp">
                       <node concept="2OqwBi" id="7ZvWWnqLXc8" role="3clFbG">
                         <node concept="37vLTw" id="7ZvWWnqLX0Y" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7ZvWWnqLWW7" resolve="it" />
+                          <ref role="3cqZAo" node="EsIH9l2tiK" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="7ZvWWnqLXiQ" role="2OqNvi">
                           <node concept="chp4Y" id="7ZvWWnqLXq$" role="cj9EA">
@@ -3979,9 +3976,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7ZvWWnqLWW7" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l2tiK" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7ZvWWnqLWW8" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l2tiL" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4039,7 +4036,7 @@
                           <node concept="3clFbF" id="12WRc28WT7l" role="3cqZAp">
                             <node concept="2OqwBi" id="12WRc28WUYc" role="3clFbG">
                               <node concept="37vLTw" id="12WRc28WTWg" role="2Oq$k0">
-                                <ref role="3cqZAo" node="12WRc28WSXM" resolve="existing" />
+                                <ref role="3cqZAo" node="EsIH9l2tiM" resolve="existing" />
                               </node>
                               <node concept="2qgKlT" id="12WRc28WVg9" role="2OqNvi">
                                 <ref role="37wK5l" to="pbu6:69zaTr1Z8aS" resolve="isSameAs" />
@@ -4060,9 +4057,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="12WRc28WSXM" role="1bW2Oz">
+                        <node concept="gl6BB" id="EsIH9l2tiM" role="1bW2Oz">
                           <property role="TrG5h" value="existing" />
-                          <node concept="2jxLKc" id="12WRc28WSXN" role="1tU5fm" />
+                          <node concept="2jxLKc" id="EsIH9l2tiN" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -4119,7 +4116,7 @@
                           <node concept="3fqX7Q" id="6bG6MAG5yIF" role="3clFbG">
                             <node concept="2OqwBi" id="6bG6MAG5yIH" role="3fr31v">
                               <node concept="37vLTw" id="6bG6MAG5yII" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6bG6MAG5wH6" resolve="it" />
+                                <ref role="3cqZAo" node="EsIH9l2tiO" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="6bG6MAG5yIJ" role="2OqNvi">
                                 <node concept="chp4Y" id="6bG6MAG5yIK" role="cj9EA">
@@ -4130,9 +4127,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="6bG6MAG5wH6" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l2tiO" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6bG6MAG5wH7" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l2tiP" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -4218,7 +4215,7 @@
                   <node concept="3clFbF" id="12WRc28W_pu" role="3cqZAp">
                     <node concept="2OqwBi" id="12WRc28W_sX" role="3clFbG">
                       <node concept="37vLTw" id="12WRc28W_pt" role="2Oq$k0">
-                        <ref role="3cqZAo" node="12WRc28W_mV" resolve="it" />
+                        <ref role="3cqZAo" node="EsIH9l2tiQ" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="12WRc28W_wB" role="2OqNvi">
                         <node concept="chp4Y" id="12WRc28W_$1" role="cj9EA">
@@ -4228,9 +4225,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="12WRc28W_mV" role="1bW2Oz">
+                <node concept="gl6BB" id="EsIH9l2tiQ" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="12WRc28W_mW" role="1tU5fm" />
+                  <node concept="2jxLKc" id="EsIH9l2tiR" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4314,7 +4311,7 @@
                                   <ref role="cht4Q" to="hm2y:7VuYlCQZ3ll" resolve="JoinType" />
                                 </node>
                                 <node concept="37vLTw" id="bA6f$pFc_c" role="1m5AlR">
-                                  <ref role="3cqZAo" node="bA6f$py8yb" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l2tiU" resolve="it" />
                                 </node>
                               </node>
                               <node concept="3Tsc0h" id="bA6f$pFc_d" role="2OqNvi">
@@ -4333,7 +4330,7 @@
                     </node>
                     <node concept="2OqwBi" id="bA6f$py8y1" role="3clFbw">
                       <node concept="37vLTw" id="bA6f$py8y2" role="2Oq$k0">
-                        <ref role="3cqZAo" node="bA6f$py8yb" resolve="it" />
+                        <ref role="3cqZAo" node="EsIH9l2tiU" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="bA6f$py8y3" role="2OqNvi">
                         <node concept="chp4Y" id="bA6f$py8y4" role="cj9EA">
@@ -4370,7 +4367,7 @@
                                     <ref role="cht4Q" to="hm2y:2rOWEwsEjcg" resolve="OptionType" />
                                   </node>
                                   <node concept="37vLTw" id="bA6f$pDcy$" role="1m5AlR">
-                                    <ref role="3cqZAo" node="bA6f$py8yb" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l2tiU" resolve="it" />
                                   </node>
                                 </node>
                                 <node concept="3TrEf2" id="bA6f$pGoiP" role="2OqNvi">
@@ -4402,7 +4399,7 @@
                       </node>
                       <node concept="2OqwBi" id="bA6f$pBynU" role="3eO9$A">
                         <node concept="37vLTw" id="bA6f$pBynV" role="2Oq$k0">
-                          <ref role="3cqZAo" node="bA6f$py8yb" resolve="it" />
+                          <ref role="3cqZAo" node="EsIH9l2tiU" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="bA6f$pBynW" role="2OqNvi">
                           <node concept="chp4Y" id="bA6f$pBynX" role="cj9EA">
@@ -4422,7 +4419,7 @@
                                 </node>
                                 <node concept="TSZUe" id="bA6f$pyhQ_" role="2OqNvi">
                                   <node concept="37vLTw" id="bA6f$pyhQA" role="25WWJ7">
-                                    <ref role="3cqZAo" node="bA6f$py8yb" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l2tiU" resolve="it" />
                                   </node>
                                 </node>
                               </node>
@@ -4439,20 +4436,20 @@
                                     <node concept="3clFbF" id="bA6f$pyhQH" role="3cqZAp">
                                       <node concept="2OqwBi" id="bA6f$pyhQM" role="3clFbG">
                                         <node concept="37vLTw" id="bA6f$pyhQN" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="bA6f$pyhQP" resolve="t" />
+                                          <ref role="3cqZAo" node="EsIH9l2tiS" resolve="t" />
                                         </node>
                                         <node concept="2qgKlT" id="bA6f$pL_pv" role="2OqNvi">
                                           <ref role="37wK5l" to="pbu6:fIXgjlt4VE" resolve="isSameAs" />
                                           <node concept="37vLTw" id="bA6f$pLC3g" role="37wK5m">
-                                            <ref role="3cqZAo" node="bA6f$py8yb" resolve="it" />
+                                            <ref role="3cqZAo" node="EsIH9l2tiU" resolve="it" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="bA6f$pyhQP" role="1bW2Oz">
+                                  <node concept="gl6BB" id="EsIH9l2tiS" role="1bW2Oz">
                                     <property role="TrG5h" value="t" />
-                                    <node concept="2jxLKc" id="bA6f$pyhQQ" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="EsIH9l2tiT" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -4463,9 +4460,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="bA6f$py8yb" role="1bW2Oz">
+                <node concept="gl6BB" id="EsIH9l2tiU" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="bA6f$py8yc" role="1tU5fm" />
+                  <node concept="2jxLKc" id="EsIH9l2tiV" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -5031,7 +5028,7 @@
                             <node concept="1rXfSq" id="KoRsm$peAf" role="3clFbG">
                               <ref role="37wK5l" node="KoRsm$oTxn" resolve="areTypesComparable" />
                               <node concept="37vLTw" id="KoRsm$peAg" role="37wK5m">
-                                <ref role="3cqZAo" node="KoRsm$peAj" resolve="joined" />
+                                <ref role="3cqZAo" node="EsIH9l2tiW" resolve="joined" />
                               </node>
                               <node concept="37vLTw" id="KoRsm$peAh" role="37wK5m">
                                 <ref role="3cqZAo" node="7KDVkAErx_$" resolve="rightType" />
@@ -5042,9 +5039,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="KoRsm$peAj" role="1bW2Oz">
+                        <node concept="gl6BB" id="EsIH9l2tiW" role="1bW2Oz">
                           <property role="TrG5h" value="joined" />
-                          <node concept="2jxLKc" id="KoRsm$peAk" role="1tU5fm" />
+                          <node concept="2jxLKc" id="EsIH9l2tiX" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -5229,7 +5226,7 @@
                                 <ref role="3cqZAo" node="7KDVkAErvHj" resolve="leftType" />
                               </node>
                               <node concept="37vLTw" id="KoRsm$pwLD" role="37wK5m">
-                                <ref role="3cqZAo" node="KoRsm$pwLF" resolve="joined" />
+                                <ref role="3cqZAo" node="EsIH9l2tiY" resolve="joined" />
                               </node>
                               <node concept="37vLTw" id="KoRsm$pwLE" role="37wK5m">
                                 <ref role="3cqZAo" node="7KDVkAErzPC" resolve="isPrimitiveTypeComparable" />
@@ -5237,9 +5234,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="KoRsm$pwLF" role="1bW2Oz">
+                        <node concept="gl6BB" id="EsIH9l2tiY" role="1bW2Oz">
                           <property role="TrG5h" value="joined" />
-                          <node concept="2jxLKc" id="KoRsm$pwLG" role="1tU5fm" />
+                          <node concept="2jxLKc" id="EsIH9l2tiZ" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -5457,7 +5454,9 @@
       <node concept="37vLTG" id="12WRc293zz9" role="3clF46">
         <property role="TrG5h" value="types" />
         <node concept="A3Dl8" id="12WRc293zz7" role="1tU5fm">
-          <node concept="3Tqbb2" id="12WRc293zzj" role="A3Ik2" />
+          <node concept="3Tqbb2" id="12WRc293zzj" role="A3Ik2">
+            <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
+          </node>
         </node>
       </node>
     </node>
@@ -5559,7 +5558,7 @@
                                 </node>
                                 <node concept="2OqwBi" id="3eH6BL4qKku" role="37wK5m">
                                   <node concept="37vLTw" id="3eH6BL4qKkv" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3eH6BL4qKkx" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l2tj0" resolve="it" />
                                   </node>
                                   <node concept="2qgKlT" id="3eH6BL4qKkw" role="2OqNvi">
                                     <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -5568,9 +5567,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="3eH6BL4qKkx" role="1bW2Oz">
+                          <node concept="gl6BB" id="EsIH9l2tj0" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="3eH6BL4qKky" role="1tU5fm" />
+                            <node concept="2jxLKc" id="EsIH9l2tj1" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -5660,7 +5659,9 @@
       <node concept="37vLTG" id="3eH6BL4$poT" role="3clF46">
         <property role="TrG5h" value="types" />
         <node concept="_YKpA" id="3eH6BL4_yIQ" role="1tU5fm">
-          <node concept="3Tqbb2" id="3eH6BL4_$Nd" role="_ZDj9" />
+          <node concept="3Tqbb2" id="3eH6BL4_$Nd" role="_ZDj9">
+            <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
+          </node>
         </node>
       </node>
       <node concept="37vLTG" id="2NHHcg2KyB1" role="3clF46">
@@ -5681,7 +5682,9 @@
       <node concept="37vLTG" id="7Xf3oOLUG1v" role="3clF46">
         <property role="TrG5h" value="types" />
         <node concept="A3Dl8" id="7Xf3oOLUG1w" role="1tU5fm">
-          <node concept="3Tqbb2" id="7Xf3oOLUG1x" role="A3Ik2" />
+          <node concept="3Tqbb2" id="7Xf3oOLUG1x" role="A3Ik2">
+            <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
+          </node>
         </node>
       </node>
       <node concept="3clFbS" id="7Xf3oOLUFUf" role="3clF47">
@@ -6995,10 +6998,6 @@
             </node>
           </node>
         </node>
-        <node concept="2X1qdy" id="46cplYwOkUY" role="2X0Ygz">
-          <property role="TrG5h" value="sub" />
-          <node concept="2jxLKc" id="46cplYwOkUZ" role="1tU5fm" />
-        </node>
         <node concept="1Z2H0r" id="46cplYwOl9S" role="nvjzm">
           <node concept="2OqwBi" id="46cplYwOlam" role="1Z2MuG">
             <node concept="1YBJjd" id="5P6itWnRcUe" role="2Oq$k0">
@@ -7009,6 +7008,10 @@
             </node>
           </node>
         </node>
+        <node concept="2X1qdy" id="46cplYwOkUY" role="2X0Ygz">
+          <property role="TrG5h" value="sub" />
+          <node concept="2jxLKc" id="46cplYwOkUZ" role="1tU5fm" />
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="5aHkq2w4PM6" role="1YuTPh">
@@ -8476,15 +8479,15 @@
                                 <ref role="2Gs0qQ" node="7VuYlCR5J9z" resolve="tt" />
                               </node>
                               <node concept="37vLTw" id="7VuYlCR5Rc1" role="37wK5m">
-                                <ref role="3cqZAo" node="7VuYlCR5Rc2" resolve="it" />
+                                <ref role="3cqZAo" node="EsIH9l2tj2" resolve="it" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="7VuYlCR5Rc2" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l2tj2" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="7VuYlCR5Rc3" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l2tj3" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -9088,7 +9091,7 @@
                       <node concept="10Nm6u" id="37t_e$LfDpj" role="3uHU7w" />
                       <node concept="2OqwBi" id="37t_e$LfAg9" role="3uHU7B">
                         <node concept="37vLTw" id="37t_e$Lf_MW" role="2Oq$k0">
-                          <ref role="3cqZAo" node="37t_e$Lf__s" resolve="it" />
+                          <ref role="3cqZAo" node="EsIH9l2tj4" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="37t_e$LfBaZ" role="2OqNvi">
                           <ref role="3Tt5mk" to="4kwy:cJpacq40jC" resolve="optionalName" />
@@ -9097,9 +9100,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="37t_e$Lf__s" role="1bW2Oz">
+                <node concept="gl6BB" id="EsIH9l2tj4" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="37t_e$Lf__t" role="1tU5fm" />
+                  <node concept="2jxLKc" id="EsIH9l2tj5" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -9697,20 +9700,20 @@
     <property role="TrG5h" value="typeof_ProgramLocationUrlOp" />
     <property role="3GE5qa" value="loc" />
     <node concept="3clFbS" id="4AahbtUR$jq" role="18ibNy">
-      <node concept="1Z5TYs" id="4AahbtUR$Ud" role="3cqZAp">
-        <node concept="mw_s8" id="4AahbtUR$Uv" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrT" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="4AahbtUR$Ug" role="1ZfhK$">
-          <node concept="1Z2H0r" id="4AahbtUR$Fr" role="mwGJk">
-            <node concept="1YBJjd" id="4AahbtUR$Hd" role="1Z2MuG">
+      <node concept="1ZobV4" id="hTGlT9FXrx" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9FXrz" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9FXr$" role="mwGJk">
+            <node concept="1YBJjd" id="hTGlT9FXr_" role="1Z2MuG">
               <ref role="1YBMHb" node="4AahbtUR$js" resolve="url" />
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9FXrA" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9FXrB" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="4AahbtUR$js" role="1YuTPh">
@@ -10572,7 +10575,7 @@
                       <node concept="2OqwBi" id="6GiZkUySAEG" role="3clFbG">
                         <node concept="2OqwBi" id="5r47dOghClp" role="2Oq$k0">
                           <node concept="37vLTw" id="5r47dOghCas" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5r47dOg5oGS" resolve="it" />
+                            <ref role="3cqZAo" node="EsIH9l2tj6" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="5r47dOghD5z" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:5r47dOg5pCn" resolve="type" />
@@ -10582,9 +10585,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5r47dOg5oGS" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l2tj6" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5r47dOg5oGT" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l2tj7" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10664,7 +10667,7 @@
                           <node concept="3clFbF" id="6GiZkUz7LEl" role="3cqZAp">
                             <node concept="17R0WA" id="6GiZkUz7NAJ" role="3clFbG">
                               <node concept="37vLTw" id="6GiZkUz7N62" role="3uHU7B">
-                                <ref role="3cqZAo" node="6GiZkUz7LyN" resolve="it" />
+                                <ref role="3cqZAo" node="EsIH9l2tj8" resolve="it" />
                               </node>
                               <node concept="2OqwBi" id="6GiZkUz7Mrj" role="3uHU7w">
                                 <node concept="1YBJjd" id="6GiZkUz7MbJ" role="2Oq$k0">
@@ -10677,9 +10680,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="6GiZkUz7LyN" role="1bW2Oz">
+                        <node concept="gl6BB" id="EsIH9l2tj8" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="6GiZkUz7LyO" role="1tU5fm" />
+                          <node concept="2jxLKc" id="EsIH9l2tj9" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -10795,8 +10798,8 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="2OwXpG" id="25rRV02p6Kq" role="2OqNvi">
-                      <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                    <node concept="liA8E" id="7LZDtvhojhg" role="2OqNvi">
+                      <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
                     </node>
                   </node>
                 </node>
@@ -10859,15 +10862,15 @@
                                 <node concept="3clFbF" id="25rRV02r7zD" role="3cqZAp">
                                   <node concept="2OqwBi" id="25rRV02r9re" role="3clFbG">
                                     <node concept="37vLTw" id="25rRV02r7zC" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="25rRV02r3PS" resolve="it" />
+                                      <ref role="3cqZAo" node="EsIH9l2tja" resolve="it" />
                                     </node>
                                     <node concept="1$rogu" id="25rRV02rbW2" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="25rRV02r3PS" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l2tja" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="25rRV02r3PT" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l2tjb" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -10916,15 +10919,15 @@
                                 <node concept="3clFbF" id="3cDaBeIiFJ4" role="3cqZAp">
                                   <node concept="2OqwBi" id="3cDaBeIiFJ5" role="3clFbG">
                                     <node concept="37vLTw" id="3cDaBeIiFJ6" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3cDaBeIiFJ8" resolve="it" />
+                                      <ref role="3cqZAo" node="EsIH9l2tjc" resolve="it" />
                                     </node>
                                     <node concept="1$rogu" id="3cDaBeIiFJ7" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3cDaBeIiFJ8" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l2tjc" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="3cDaBeIiFJ9" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l2tjd" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/org.iets3.core.expr.base.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/org.iets3.core.expr.base.mpl
index 0ae6819e1b..472d486bf7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/org.iets3.core.expr.base.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.base/org.iets3.core.expr.base.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">7a5dda62-9140-4668-ab76-d5ed1746f2b2(jetbrains.mps.lang.typesystem)</dependency>
@@ -30,6 +29,7 @@
     <dependency reexport="false">6c563085-e123-4aaf-be88-fb88e02f8282(io.netty)</dependency>
     <dependency reexport="false">3f233e7f-b8a6-46d2-a57f-795d56775243(Annotations)</dependency>
     <dependency reexport="false">9a4afe51-f114-4595-b5df-048ce3c596be(jetbrains.mps.runtime)</dependency>
+    <dependency reexport="false">8e98f4e2-decf-4e97-bf80-9109e8b759ee(jetbrains.mps.lang.constraints.rules.runtime)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:9d69e719-78c8-4286-90db-fb19c107d049:com.mbeddr.mpsutil.grammarcells" version="2" />
@@ -44,7 +44,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -75,7 +75,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
@@ -126,6 +126,7 @@
     <module reference="ae6d8005-36be-4cb6-945b-8c8cfc033c51(jetbrains.mps.ide.httpsupport.runtime)" version="0" />
     <module reference="2d3c70e9-aab2-4870-8d8d-6036800e4103(jetbrains.mps.kernel)" version="0" />
     <module reference="d936855b-48da-4812-a8a0-2bfddd633ac5(jetbrains.mps.lang.behavior.api)" version="0" />
+    <module reference="8e98f4e2-decf-4e97-bf80-9109e8b759ee(jetbrains.mps.lang.constraints.rules.runtime)" version="0" />
     <module reference="ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)" version="0" />
     <module reference="a9e4c532-c5f5-4bb7-99ef-42abb73bbb70(jetbrains.mps.lang.descriptor.aspects)" version="0" />
     <module reference="446c26eb-2b7b-4bf0-9b35-f83fa582753e(jetbrains.mps.lang.modelapi)" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/actions.mps
index 67acf95735..ec81f4794a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/actions.mps
@@ -135,7 +135,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/behavior.mps
index fca4b473c9..f5d8576705 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/behavior.mps
@@ -136,7 +136,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -149,7 +149,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -161,6 +161,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -257,7 +258,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -292,7 +293,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
@@ -2878,7 +2878,7 @@
                       <node concept="TSZUe" id="4_KMC82Eb$w" role="2OqNvi">
                         <node concept="2OqwBi" id="4_KMC82Eb$x" role="25WWJ7">
                           <node concept="37vLTw" id="4_KMC82Eb$y" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4_KMC82Eb$H" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8177D" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="4_KMC82Eb$z" role="2OqNvi">
                             <ref role="3Tt5mk" to="700h:7kYh9WszdHE" resolve="key" />
@@ -2895,7 +2895,7 @@
                       <node concept="TSZUe" id="4_KMC82Eb$B" role="2OqNvi">
                         <node concept="2OqwBi" id="4_KMC82Eb$C" role="25WWJ7">
                           <node concept="37vLTw" id="4_KMC82Eb$D" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4_KMC82Eb$H" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8177D" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="4_KMC82Eb$E" role="2OqNvi">
                             <ref role="3Tt5mk" to="700h:7kYh9WszdHG" resolve="val" />
@@ -2910,9 +2910,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4_KMC82Eb$H" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8177D" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4_KMC82Eb$I" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8177E" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/editor.mps
index dd73397d97..acb9d21640 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/editor.mps
@@ -6,21 +6,21 @@
     <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
+    <use id="120e1c9d-4e27-4478-b2af-b2c3bd3850b0" name="com.mbeddr.mpsutil.editor.querylist" version="0" />
     <use id="52733268-be24-4f5f-ab84-a73b7c0c03b0" name="de.slisson.mps.richtext.customcell" version="0" />
     <use id="654422bf-e75f-44dc-936d-188890a746ce" name="de.slisson.mps.reflection" version="0" />
-    <use id="120e1c9d-4e27-4478-b2af-b2c3bd3850b0" name="com.mbeddr.mpsutil.editor.querylist" version="0" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
   <imports>
     <import index="itrz" ref="r:80fb0853-eb3b-4e84-aebd-cc7fdb011d97(org.iets3.core.base.editor)" />
     <import index="oq0c" ref="r:6c6155f0-4bbe-4af5-8c26-244d570e21e4(org.iets3.core.expr.base.plugin)" />
     <import index="700h" ref="r:61b1de80-490d-4fee-8e95-b956503290e9(org.iets3.core.expr.collections.structure)" />
-    <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
-    <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
-    <import index="5qo5" ref="r:6d93ddb1-b0b0-4eee-8079-51303666672a(org.iets3.core.expr.simpleTypes.structure)" />
     <import index="g51k" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.nodeEditor.cells(MPS.Editor/)" />
-    <import index="buwp" ref="r:8405f486-53b5-4fe6-af3e-7f68358bd631(org.iets3.core.expr.base.editor)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
+    <import index="buwp" ref="r:8405f486-53b5-4fe6-af3e-7f68358bd631(org.iets3.core.expr.base.editor)" />
+    <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
+    <import index="5qo5" ref="r:6d93ddb1-b0b0-4eee-8079-51303666672a(org.iets3.core.expr.simpleTypes.structure)" />
+    <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
     <import index="hm2y" ref="r:66e07cb4-a4b0-4bf3-a36d-5e9ed1ff1bd3(org.iets3.core.expr.base.structure)" implicit="true" />
     <import index="tpco" ref="r:00000000-0000-4000-0000-011c89590284(jetbrains.mps.lang.core.editor)" implicit="true" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" implicit="true" />
@@ -1746,141 +1746,141 @@
       <property role="3F0ifm" value="Workaround to fix contributions to BaseConcept generated by grammarCells." />
     </node>
   </node>
-  <node concept="3ICUPy" id="6mBw0A_bOoe">
+  <node concept="3ICUPy" id="6mBw0A_biFx">
     <ref role="aqKnT" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
-    <node concept="22hDWg" id="6mBw0A_bOof" role="22hAXT">
-      <property role="TrG5h" value="CollectionSizeSpecMinValue" />
+    <node concept="22hDWg" id="6mBw0A_biFy" role="22hAXT">
+      <property role="TrG5h" value="CollectionSizeSpecMaxValue" />
     </node>
-    <node concept="1Qtc8_" id="6mBw0A_bOog" role="IW6Ez">
-      <node concept="3eGOoe" id="6mBw0A_bOoh" role="1Qtc8$" />
-      <node concept="3c8P5G" id="6mBw0A_bOoi" role="1Qtc8A">
-        <node concept="3c8PGw" id="6mBw0A_bOoj" role="3c8PHt">
-          <node concept="3clFbS" id="6mBw0A_bOok" role="2VODD2">
-            <node concept="3cpWs8" id="6mBw0A_bOol" role="3cqZAp">
-              <node concept="3cpWsn" id="6mBw0A_bOom" role="3cpWs9">
+    <node concept="1Qtc8_" id="6mBw0A_biFz" role="IW6Ez">
+      <node concept="3eGOoe" id="6mBw0A_biF$" role="1Qtc8$" />
+      <node concept="3c8P5G" id="6mBw0A_biF_" role="1Qtc8A">
+        <node concept="3c8PGw" id="6mBw0A_biFA" role="3c8PHt">
+          <node concept="3clFbS" id="6mBw0A_biFB" role="2VODD2">
+            <node concept="3cpWs8" id="6mBw0A_biFC" role="3cqZAp">
+              <node concept="3cpWsn" id="6mBw0A_biFD" role="3cpWs9">
                 <property role="TrG5h" value="spec" />
-                <node concept="3Tqbb2" id="6mBw0A_bOon" role="1tU5fm">
+                <node concept="3Tqbb2" id="6mBw0A_biFE" role="1tU5fm">
                   <ref role="ehGHo" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
                 </node>
-                <node concept="1PxgMI" id="6mBw0A_bOoo" role="33vP2m">
+                <node concept="1PxgMI" id="6mBw0A_biFF" role="33vP2m">
                   <property role="1BlNFB" value="true" />
-                  <node concept="chp4Y" id="6mBw0A_bOop" role="3oSUPX">
+                  <node concept="chp4Y" id="6mBw0A_biFG" role="3oSUPX">
                     <ref role="cht4Q" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
                   </node>
-                  <node concept="X5bN_" id="6mBw0A_bOoq" role="1m5AlR" />
+                  <node concept="X5bN_" id="6mBw0A_biFH" role="1m5AlR" />
                 </node>
               </node>
             </node>
-            <node concept="3clFbF" id="6mBw0A_bOor" role="3cqZAp">
-              <node concept="37vLTI" id="6mBw0A_bOos" role="3clFbG">
-                <node concept="2OqwBi" id="6mBw0A_bOot" role="37vLTx">
-                  <node concept="3c8USq" id="6mBw0A_bOou" role="2Oq$k0" />
-                  <node concept="3TrcHB" id="6mBw0A_bOov" role="2OqNvi">
+            <node concept="3clFbF" id="6mBw0A_biFI" role="3cqZAp">
+              <node concept="37vLTI" id="6mBw0A_biFJ" role="3clFbG">
+                <node concept="2OqwBi" id="6mBw0A_biFK" role="37vLTx">
+                  <node concept="3c8USq" id="6mBw0A_biFL" role="2Oq$k0" />
+                  <node concept="3TrcHB" id="6mBw0A_biFM" role="2OqNvi">
                     <ref role="3TsBF5" to="5qo5:4rZeNQ6Oert" resolve="value" />
                   </node>
                 </node>
-                <node concept="2OqwBi" id="6mBw0A_bOow" role="37vLTJ">
-                  <node concept="37vLTw" id="6mBw0A_bOox" role="2Oq$k0">
-                    <ref role="3cqZAo" node="6mBw0A_bOom" resolve="spec" />
+                <node concept="2OqwBi" id="6mBw0A_biFN" role="37vLTJ">
+                  <node concept="37vLTw" id="6mBw0A_biFO" role="2Oq$k0">
+                    <ref role="3cqZAo" node="6mBw0A_biFD" resolve="spec" />
                   </node>
-                  <node concept="3TrcHB" id="6mBw0A_bOoy" role="2OqNvi">
-                    <ref role="3TsBF5" to="700h:19PglA20qXJ" resolve="min" />
+                  <node concept="3TrcHB" id="6mBw0A_biFP" role="2OqNvi">
+                    <ref role="3TsBF5" to="700h:19PglA20qXK" resolve="max" />
                   </node>
                 </node>
               </node>
             </node>
-            <node concept="3clFbF" id="6mBw0A_AnmT" role="3cqZAp">
-              <node concept="2OqwBi" id="6mBw0A_AnmU" role="3clFbG">
-                <node concept="3c8USq" id="6mBw0A_AnmV" role="2Oq$k0" />
-                <node concept="2qgKlT" id="6mBw0A_AnmW" role="2OqNvi">
+            <node concept="3clFbF" id="6mBw0A_uyvq" role="3cqZAp">
+              <node concept="2OqwBi" id="6mBw0A_uyKH" role="3clFbG">
+                <node concept="3c8USq" id="6mBw0A_uyvp" role="2Oq$k0" />
+                <node concept="2qgKlT" id="6mBw0A_uzfp" role="2OqNvi">
                   <ref role="37wK5l" to="pbu6:6mBw0A_sUtS" resolve="copyHexValue" />
-                  <node concept="355D3s" id="6mBw0A_AnmX" role="37wK5m">
+                  <node concept="355D3s" id="6mBw0A_uzfT" role="37wK5m">
                     <ref role="355D3t" to="5qo5:4rZeNQ6Oerq" resolve="NumberLiteral" />
                     <ref role="355D3u" to="5qo5:4rZeNQ6Oert" resolve="value" />
                   </node>
-                  <node concept="355D3s" id="6mBw0A_AnmY" role="37wK5m">
+                  <node concept="355D3s" id="6mBw0A_uzh5" role="37wK5m">
                     <ref role="355D3t" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
-                    <ref role="355D3u" to="700h:19PglA20qXJ" resolve="min" />
+                    <ref role="355D3u" to="700h:19PglA20qXK" resolve="max" />
                   </node>
-                  <node concept="37vLTw" id="6mBw0A_AnmZ" role="37wK5m">
-                    <ref role="3cqZAo" node="6mBw0A_bOom" resolve="spec" />
+                  <node concept="37vLTw" id="6mBw0A_uziw" role="37wK5m">
+                    <ref role="3cqZAo" node="6mBw0A_biFD" resolve="spec" />
                   </node>
                 </node>
               </node>
             </node>
           </node>
         </node>
-        <node concept="2kknPJ" id="6mBw0A_bOoM" role="3c8P5H">
+        <node concept="2kknPJ" id="6mBw0A_biG5" role="3c8P5H">
           <ref role="2ZyFGn" to="5qo5:4rZeNQ6Oerq" resolve="NumberLiteral" />
         </node>
       </node>
     </node>
   </node>
-  <node concept="3ICUPy" id="6mBw0A_biFx">
+  <node concept="3ICUPy" id="6mBw0A_bOoe">
     <ref role="aqKnT" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
-    <node concept="22hDWg" id="6mBw0A_biFy" role="22hAXT">
-      <property role="TrG5h" value="CollectionSizeSpecMaxValue" />
+    <node concept="22hDWg" id="6mBw0A_bOof" role="22hAXT">
+      <property role="TrG5h" value="CollectionSizeSpecMinValue" />
     </node>
-    <node concept="1Qtc8_" id="6mBw0A_biFz" role="IW6Ez">
-      <node concept="3eGOoe" id="6mBw0A_biF$" role="1Qtc8$" />
-      <node concept="3c8P5G" id="6mBw0A_biF_" role="1Qtc8A">
-        <node concept="3c8PGw" id="6mBw0A_biFA" role="3c8PHt">
-          <node concept="3clFbS" id="6mBw0A_biFB" role="2VODD2">
-            <node concept="3cpWs8" id="6mBw0A_biFC" role="3cqZAp">
-              <node concept="3cpWsn" id="6mBw0A_biFD" role="3cpWs9">
+    <node concept="1Qtc8_" id="6mBw0A_bOog" role="IW6Ez">
+      <node concept="3eGOoe" id="6mBw0A_bOoh" role="1Qtc8$" />
+      <node concept="3c8P5G" id="6mBw0A_bOoi" role="1Qtc8A">
+        <node concept="3c8PGw" id="6mBw0A_bOoj" role="3c8PHt">
+          <node concept="3clFbS" id="6mBw0A_bOok" role="2VODD2">
+            <node concept="3cpWs8" id="6mBw0A_bOol" role="3cqZAp">
+              <node concept="3cpWsn" id="6mBw0A_bOom" role="3cpWs9">
                 <property role="TrG5h" value="spec" />
-                <node concept="3Tqbb2" id="6mBw0A_biFE" role="1tU5fm">
+                <node concept="3Tqbb2" id="6mBw0A_bOon" role="1tU5fm">
                   <ref role="ehGHo" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
                 </node>
-                <node concept="1PxgMI" id="6mBw0A_biFF" role="33vP2m">
+                <node concept="1PxgMI" id="6mBw0A_bOoo" role="33vP2m">
                   <property role="1BlNFB" value="true" />
-                  <node concept="chp4Y" id="6mBw0A_biFG" role="3oSUPX">
+                  <node concept="chp4Y" id="6mBw0A_bOop" role="3oSUPX">
                     <ref role="cht4Q" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
                   </node>
-                  <node concept="X5bN_" id="6mBw0A_biFH" role="1m5AlR" />
+                  <node concept="X5bN_" id="6mBw0A_bOoq" role="1m5AlR" />
                 </node>
               </node>
             </node>
-            <node concept="3clFbF" id="6mBw0A_biFI" role="3cqZAp">
-              <node concept="37vLTI" id="6mBw0A_biFJ" role="3clFbG">
-                <node concept="2OqwBi" id="6mBw0A_biFK" role="37vLTx">
-                  <node concept="3c8USq" id="6mBw0A_biFL" role="2Oq$k0" />
-                  <node concept="3TrcHB" id="6mBw0A_biFM" role="2OqNvi">
+            <node concept="3clFbF" id="6mBw0A_bOor" role="3cqZAp">
+              <node concept="37vLTI" id="6mBw0A_bOos" role="3clFbG">
+                <node concept="2OqwBi" id="6mBw0A_bOot" role="37vLTx">
+                  <node concept="3c8USq" id="6mBw0A_bOou" role="2Oq$k0" />
+                  <node concept="3TrcHB" id="6mBw0A_bOov" role="2OqNvi">
                     <ref role="3TsBF5" to="5qo5:4rZeNQ6Oert" resolve="value" />
                   </node>
                 </node>
-                <node concept="2OqwBi" id="6mBw0A_biFN" role="37vLTJ">
-                  <node concept="37vLTw" id="6mBw0A_biFO" role="2Oq$k0">
-                    <ref role="3cqZAo" node="6mBw0A_biFD" resolve="spec" />
+                <node concept="2OqwBi" id="6mBw0A_bOow" role="37vLTJ">
+                  <node concept="37vLTw" id="6mBw0A_bOox" role="2Oq$k0">
+                    <ref role="3cqZAo" node="6mBw0A_bOom" resolve="spec" />
                   </node>
-                  <node concept="3TrcHB" id="6mBw0A_biFP" role="2OqNvi">
-                    <ref role="3TsBF5" to="700h:19PglA20qXK" resolve="max" />
+                  <node concept="3TrcHB" id="6mBw0A_bOoy" role="2OqNvi">
+                    <ref role="3TsBF5" to="700h:19PglA20qXJ" resolve="min" />
                   </node>
                 </node>
               </node>
             </node>
-            <node concept="3clFbF" id="6mBw0A_uyvq" role="3cqZAp">
-              <node concept="2OqwBi" id="6mBw0A_uyKH" role="3clFbG">
-                <node concept="3c8USq" id="6mBw0A_uyvp" role="2Oq$k0" />
-                <node concept="2qgKlT" id="6mBw0A_uzfp" role="2OqNvi">
+            <node concept="3clFbF" id="6mBw0A_AnmT" role="3cqZAp">
+              <node concept="2OqwBi" id="6mBw0A_AnmU" role="3clFbG">
+                <node concept="3c8USq" id="6mBw0A_AnmV" role="2Oq$k0" />
+                <node concept="2qgKlT" id="6mBw0A_AnmW" role="2OqNvi">
                   <ref role="37wK5l" to="pbu6:6mBw0A_sUtS" resolve="copyHexValue" />
-                  <node concept="355D3s" id="6mBw0A_uzfT" role="37wK5m">
+                  <node concept="355D3s" id="6mBw0A_AnmX" role="37wK5m">
                     <ref role="355D3t" to="5qo5:4rZeNQ6Oerq" resolve="NumberLiteral" />
                     <ref role="355D3u" to="5qo5:4rZeNQ6Oert" resolve="value" />
                   </node>
-                  <node concept="355D3s" id="6mBw0A_uzh5" role="37wK5m">
+                  <node concept="355D3s" id="6mBw0A_AnmY" role="37wK5m">
                     <ref role="355D3t" to="700h:19PglA20qX_" resolve="CollectionSizeSpec" />
-                    <ref role="355D3u" to="700h:19PglA20qXK" resolve="max" />
+                    <ref role="355D3u" to="700h:19PglA20qXJ" resolve="min" />
                   </node>
-                  <node concept="37vLTw" id="6mBw0A_uziw" role="37wK5m">
-                    <ref role="3cqZAo" node="6mBw0A_biFD" resolve="spec" />
+                  <node concept="37vLTw" id="6mBw0A_AnmZ" role="37wK5m">
+                    <ref role="3cqZAo" node="6mBw0A_bOom" resolve="spec" />
                   </node>
                 </node>
               </node>
             </node>
           </node>
         </node>
-        <node concept="2kknPJ" id="6mBw0A_biG5" role="3c8P5H">
+        <node concept="2kknPJ" id="6mBw0A_bOoM" role="3c8P5H">
           <ref role="2ZyFGn" to="5qo5:4rZeNQ6Oerq" resolve="NumberLiteral" />
         </node>
       </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/migration.mps
index 230c0f1103..b0681ad4d2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/migration.mps
@@ -10,7 +10,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/plugin.mps
index 766216da53..bd5a7d4fd5 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/plugin.mps
@@ -28,7 +28,7 @@
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
         <child id="5375687026011219971" name="member" index="jymVt" unordered="true" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -42,7 +42,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/structure.mps
index ddd621ca24..f8f2caa2af 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/structure.mps
@@ -65,7 +65,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/typesystem.mps
index a89235e65d..d981ca7064 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/typesystem.mps
@@ -5,7 +5,7 @@
     <use id="9464fa06-5ab9-409b-9274-64ab29588457" name="org.iets3.core.expr.lambda" version="2" />
     <use id="6b277d9a-d52d-416f-a209-1919bd737f50" name="org.iets3.core.expr.simpleTypes" version="3" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -108,7 +108,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -133,13 +133,14 @@
       <concept id="7425695345928349207" name="org.iets3.core.expr.simpleTypes.structure.BooleanType" flags="ng" index="2vmvy5" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
       </concept>
     </language>
     <language id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation">
-      <concept id="1196350785110" name="jetbrains.mps.lang.quotation.structure.AbstractAntiquotation" flags="ng" index="2c44t0">
+      <concept id="1196350785110" name="jetbrains.mps.lang.quotation.structure.AbstractAntiquotation" flags="ngI" index="2c44t0">
         <child id="1196350785111" name="expression" index="2c44t1" />
       </concept>
       <concept id="1196350785112" name="jetbrains.mps.lang.quotation.structure.Antiquotation" flags="ng" index="2c44te" />
@@ -315,7 +316,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -342,7 +343,6 @@
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
       <concept id="1235566831861" name="jetbrains.mps.baseLanguage.collections.structure.AllOperation" flags="nn" index="2HxqBE" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -4309,16 +4309,16 @@
         <node concept="3clFbS" id="4ptnK4ii9yt" role="nvhr_">
           <node concept="3clFbJ" id="4ptnK4iiaiO" role="3cqZAp">
             <node concept="3clFbS" id="4ptnK4iiaiQ" role="3clFbx">
-              <node concept="1Z5TYs" id="4ptnK4ii9gR" role="3cqZAp">
-                <node concept="mw_s8" id="4ptnK4ii9gS" role="1ZfhK$">
-                  <node concept="1Z2H0r" id="4ptnK4ii9gT" role="mwGJk">
-                    <node concept="1YBJjd" id="4ptnK4ii9i1" role="1Z2MuG">
+              <node concept="1ZobV4" id="hTGlT9FZFD" role="3cqZAp">
+                <node concept="mw_s8" id="hTGlT9FZFF" role="1ZfhK$">
+                  <node concept="1Z2H0r" id="hTGlT9FZFG" role="mwGJk">
+                    <node concept="1YBJjd" id="hTGlT9FZFH" role="1Z2MuG">
                       <ref role="1YBMHb" node="4ptnK4ii9gx" resolve="joiner" />
                     </node>
                   </node>
                 </node>
-                <node concept="mw_s8" id="4ptnK4ii9gV" role="1ZfhKB">
-                  <node concept="2YIFZM" id="5wDe8wA6zr_" role="mwGJk">
+                <node concept="mw_s8" id="hTGlT9FZFI" role="1ZfhKB">
+                  <node concept="2YIFZM" id="hTGlT9FZFJ" role="mwGJk">
                     <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
                     <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
                   </node>
@@ -6876,7 +6876,7 @@
                     <node concept="3clFbF" id="5a86BD12QlZ" role="3cqZAp">
                       <node concept="3JuTUA" id="5a86BD12Rel" role="3clFbG">
                         <node concept="37vLTw" id="5a86BD12ZcD" role="3JuY14">
-                          <ref role="3cqZAo" node="5a86BD12Pck" resolve="it" />
+                          <ref role="3cqZAo" node="EsIH9l2tEf" resolve="it" />
                         </node>
                         <node concept="2OqwBi" id="5a86BD1a2Ph" role="3JuZjQ">
                           <node concept="1YBJjd" id="5a86BD12Zoc" role="2Oq$k0">
@@ -6889,9 +6889,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5a86BD12Pck" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l2tEf" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5a86BD12Pcl" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l2tEg" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/org.iets3.core.expr.collections.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/org.iets3.core.expr.collections.mpl
index 4c1868cd2b..b58ac61bad 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/org.iets3.core.expr.collections.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/org.iets3.core.expr.collections.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
@@ -43,7 +42,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.behavior.mps
index 6bc578e0ab..8a8cad1cba 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.behavior.mps
@@ -96,7 +96,7 @@
       </concept>
       <concept id="1068581242869" name="jetbrains.mps.baseLanguage.structure.MinusExpression" flags="nn" index="3cpWsd" />
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -107,7 +107,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -187,7 +187,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.constraints.mps
index 2f328e4788..963b065ef2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.constraints.mps
@@ -43,7 +43,7 @@
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.editor.mps
index 253682e07a..dc237fcc96 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.editor.mps
@@ -72,7 +72,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="3982520150125052579" name="jetbrains.mps.lang.editor.structure.QueryFunction_AttributeStyleParameter" flags="ig" index="3sjG9q" />
@@ -98,7 +98,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY">
@@ -197,7 +197,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -216,6 +216,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -226,7 +227,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G">
@@ -311,7 +312,7 @@
       <concept id="1397920687867564204" name="de.slisson.mps.tables.structure.QueryParameter_ColumnIndex" flags="ng" index="2rSBBp" />
       <concept id="4032373061957737357" name="de.slisson.mps.tables.structure.Parameter_Index" flags="ng" index="10bopy" />
       <concept id="4032373061957735279" name="de.slisson.mps.tables.structure.HeaderQuery_InsertNew" flags="ig" index="10boU0" />
-      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ng" index="1g0I81">
+      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ngI" index="1g0I81">
         <child id="5662204344887343006" name="style" index="1geGt4" />
       </concept>
       <concept id="5662204344885763446" name="de.slisson.mps.tables.structure.TableStyle" flags="ng" index="1g0IQG">
@@ -377,7 +378,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -397,7 +398,6 @@
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -681,7 +681,7 @@
                                   <node concept="2OqwBi" id="7WrYb3ec4m$" role="2Oq$k0">
                                     <node concept="2OqwBi" id="7WrYb3ec4m_" role="2Oq$k0">
                                       <node concept="37vLTw" id="7WrYb3ec4mA" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="7WrYb3ec4mW" resolve="row" />
+                                        <ref role="3cqZAo" node="EsIH9l2tHe" resolve="row" />
                                       </node>
                                       <node concept="3Tsc0h" id="7WrYb3ec4mB" role="2OqNvi">
                                         <ref role="3TtcxE" to="e9k1:cPLa7FpcRm" resolve="cells" />
@@ -697,7 +697,7 @@
                                               </node>
                                               <node concept="2OqwBi" id="7WrYb3ec4mI" role="3uHU7B">
                                                 <node concept="37vLTw" id="7WrYb3ec4mJ" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="7WrYb3ec4mL" resolve="c" />
+                                                  <ref role="3cqZAo" node="EsIH9l2tHa" resolve="c" />
                                                 </node>
                                                 <node concept="3TrEf2" id="7WrYb3ec4mK" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -706,9 +706,9 @@
                                             </node>
                                           </node>
                                         </node>
-                                        <node concept="Rh6nW" id="7WrYb3ec4mL" role="1bW2Oz">
+                                        <node concept="gl6BB" id="EsIH9l2tHa" role="1bW2Oz">
                                           <property role="TrG5h" value="c" />
-                                          <node concept="2jxLKc" id="7WrYb3ec4mM" role="1tU5fm" />
+                                          <node concept="2jxLKc" id="EsIH9l2tHb" role="1tU5fm" />
                                         </node>
                                       </node>
                                     </node>
@@ -719,24 +719,24 @@
                                         <node concept="3clFbF" id="7WrYb3ec4mQ" role="3cqZAp">
                                           <node concept="2OqwBi" id="7WrYb3ec4mR" role="3clFbG">
                                             <node concept="37vLTw" id="7WrYb3ec4mS" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="7WrYb3ec4mU" resolve="c" />
+                                              <ref role="3cqZAo" node="EsIH9l2tHc" resolve="c" />
                                             </node>
                                             <node concept="3YRAZt" id="7WrYb3ec4mT" role="2OqNvi" />
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="7WrYb3ec4mU" role="1bW2Oz">
+                                      <node concept="gl6BB" id="EsIH9l2tHc" role="1bW2Oz">
                                         <property role="TrG5h" value="c" />
-                                        <node concept="2jxLKc" id="7WrYb3ec4mV" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="EsIH9l2tHd" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="7WrYb3ec4mW" role="1bW2Oz">
+                            <node concept="gl6BB" id="EsIH9l2tHe" role="1bW2Oz">
                               <property role="TrG5h" value="row" />
-                              <node concept="2jxLKc" id="7WrYb3ec4mX" role="1tU5fm" />
+                              <node concept="2jxLKc" id="EsIH9l2tHf" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -824,7 +824,7 @@
                             </node>
                             <node concept="2OqwBi" id="4_sn_QHl$rY" role="3uHU7B">
                               <node concept="37vLTw" id="4_sn_QHl$by" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4_sn_QHl$29" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8177M" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="cPLa7Fqhd2" role="2OqNvi">
                                 <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -833,9 +833,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="4_sn_QHl$29" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8177M" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="4_sn_QHl$2a" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8177N" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -931,7 +931,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="5yPljRY0Pmi" role="3uHU7B">
                                     <node concept="37vLTw" id="5yPljRY0Pmj" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="5yPljRY0Pml" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8177O" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="5yPljRY0Pmk" role="2OqNvi">
                                       <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -940,9 +940,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5yPljRY0Pml" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8177O" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="5yPljRY0Pmm" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8177P" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.migration.mps
index ea604cac46..b6c0152431 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.migration.mps
@@ -5,7 +5,7 @@
     <use id="90746344-04fd-4286-97d5-b46ae6a81709" name="jetbrains.mps.lang.migration" version="2" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="d4615e3b-d671-4ba9-af01-2b78369b0ba7" name="jetbrains.mps.lang.pattern" version="2" />
     <use id="9882f4ad-1955-46fe-8269-94189e5dbbf2" name="jetbrains.mps.lang.migration.util" version="0" />
     <devkit ref="2787ae0c-1f54-4fbf-b0b7-caf2b5beecbc(jetbrains.mps.devkit.aspect.migration)" />
@@ -62,7 +62,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
@@ -71,12 +71,13 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -155,7 +156,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -213,7 +214,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
     </language>
   </registry>
@@ -291,7 +291,7 @@
                           <node concept="2OqwBi" id="2OsjbbtceDo" role="3clFbG">
                             <node concept="2OqwBi" id="2Osjbbtce0F" role="2Oq$k0">
                               <node concept="37vLTw" id="2OsjbbtcdCh" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2Osjbbtcdx8" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX81780" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="2OsjbbtcemI" role="2OqNvi">
                                 <ref role="3Tt5mk" to="e9k1:stdmzxm7Y5" resolve="col_old" />
@@ -301,9 +301,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2Osjbbtcdx8" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX81780" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2Osjbbtcdx9" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX81781" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -321,7 +321,7 @@
                                 <node concept="36biLy" id="2Osjbbtchld" role="28nt2d">
                                   <node concept="2OqwBi" id="2OsjbbtchMu" role="36biLW">
                                     <node concept="37vLTw" id="2Osjbbtchqb" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="2OsjbbtcfM_" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX81782" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="2Osjbbtcif2" role="2OqNvi">
                                       <ref role="3Tt5mk" to="e9k1:stdmzxm7Y5" resolve="col_old" />
@@ -333,7 +333,7 @@
                           </node>
                           <node concept="2OqwBi" id="2Osjbbtcg59" role="37vLTJ">
                             <node concept="37vLTw" id="2OsjbbtcfRF" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2OsjbbtcfM_" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX81782" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="2Osjbbtcg$o" role="2OqNvi">
                               <ref role="3Tt5mk" to="e9k1:7F9023_Orfu" resolve="col" />
@@ -346,7 +346,7 @@
                           <node concept="10Nm6u" id="2OsjbbtcjPM" role="37vLTx" />
                           <node concept="2OqwBi" id="2OsjbbtcivV" role="37vLTJ">
                             <node concept="37vLTw" id="2Osjbbtcis9" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2OsjbbtcfM_" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX81782" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="2Osjbbtcj3e" role="2OqNvi">
                               <ref role="3Tt5mk" to="e9k1:stdmzxm7Y5" resolve="col_old" />
@@ -355,9 +355,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2OsjbbtcfM_" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX81782" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2OsjbbtcfMA" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX81783" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.structure.mps
index 817f419731..1acff2a9dc 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.structure.mps
@@ -50,7 +50,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.typesystem.mps
index 598ee866b5..5a83f48c30 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/models/org.iets3.core.expr.data.typesystem.mps
@@ -78,7 +78,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -90,6 +90,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -235,7 +236,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -254,7 +255,6 @@
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -360,7 +360,7 @@
                       <node concept="2OqwBi" id="4PRpvcZvBVD" role="2MkoU_">
                         <node concept="2OqwBi" id="4PRpvcZvBxb" role="2Oq$k0">
                           <node concept="37vLTw" id="4PRpvcZvBlZ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4PRpvcZvBhc" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8177Q" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="4PRpvcZvBFF" role="2OqNvi">
                             <ref role="3Tt5mk" to="e9k1:cPLa7Fpe9f" resolve="value" />
@@ -377,7 +377,7 @@
                       </node>
                       <node concept="2OqwBi" id="4PRpvcZw7qS" role="1urrMF">
                         <node concept="37vLTw" id="4PRpvcZvD72" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4PRpvcZvBhc" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8177Q" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="4PRpvcZw7_B" role="2OqNvi">
                           <ref role="3Tt5mk" to="e9k1:cPLa7Fpe9f" resolve="value" />
@@ -385,9 +385,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4PRpvcZvBhc" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8177Q" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4PRpvcZvBhd" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8177R" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -478,11 +478,11 @@
                                     <node concept="1Wc70l" id="2KRUNf1mG2W" role="3clFbG">
                                       <node concept="17R0WA" id="2KRUNf1mG2X" role="3uHU7w">
                                         <node concept="37vLTw" id="2KRUNf1mG2Y" role="3uHU7w">
-                                          <ref role="3cqZAo" node="2KRUNf1mG3b" resolve="col" />
+                                          <ref role="3cqZAo" node="4z0AnX8177U" resolve="col" />
                                         </node>
                                         <node concept="2OqwBi" id="2KRUNf1mG2Z" role="3uHU7B">
                                           <node concept="37vLTw" id="2KRUNf1mG30" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="2KRUNf1mG38" resolve="row" />
+                                            <ref role="3cqZAo" node="4z0AnX8177S" resolve="row" />
                                           </node>
                                           <node concept="3TrEf2" id="2KRUNf1mG31" role="2OqNvi">
                                             <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -492,7 +492,7 @@
                                       <node concept="2OqwBi" id="2KRUNf1mG32" role="3uHU7B">
                                         <node concept="2OqwBi" id="2KRUNf1mG33" role="2Oq$k0">
                                           <node concept="37vLTw" id="2KRUNf1mG34" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="2KRUNf1mG38" resolve="row" />
+                                            <ref role="3cqZAo" node="4z0AnX8177S" resolve="row" />
                                           </node>
                                           <node concept="3TrEf2" id="2KRUNf1mG35" role="2OqNvi">
                                             <ref role="3Tt5mk" to="e9k1:cPLa7Fpe9f" resolve="value" />
@@ -507,9 +507,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="2KRUNf1mG38" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8177S" role="1bW2Oz">
                                   <property role="TrG5h" value="row" />
-                                  <node concept="2jxLKc" id="2KRUNf1mG39" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8177T" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -518,9 +518,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2KRUNf1mG3b" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8177U" role="1bW2Oz">
                       <property role="TrG5h" value="col" />
-                      <node concept="2jxLKc" id="2KRUNf1mG3c" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8177V" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -541,7 +541,7 @@
                           <node concept="2OqwBi" id="2KRUNf1mNSP" role="3clFbG">
                             <node concept="2OqwBi" id="2KRUNf1mMwl" role="2Oq$k0">
                               <node concept="37vLTw" id="2KRUNf1mL8f" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2KRUNf1mHhI" resolve="defaultValues" />
+                                <ref role="3cqZAo" node="4z0AnX8177Y" resolve="defaultValues" />
                               </node>
                               <node concept="7r0gD" id="2KRUNf1mNvp" role="2OqNvi">
                                 <node concept="3cmrfG" id="2KRUNf1mND7" role="7T0AP">
@@ -557,13 +557,13 @@
                                       <property role="Xl_RC" value="only one empty input value per column is allowed" />
                                     </node>
                                     <node concept="37vLTw" id="2KRUNf1mR8t" role="1urrMF">
-                                      <ref role="3cqZAo" node="2KRUNf1mOcx" resolve="def" />
+                                      <ref role="3cqZAo" node="4z0AnX8177W" resolve="def" />
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="2KRUNf1mOcx" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8177W" role="1bW2Oz">
                                   <property role="TrG5h" value="def" />
-                                  <node concept="2jxLKc" id="2KRUNf1mOcy" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8177X" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -576,16 +576,16 @@
                         </node>
                         <node concept="2OqwBi" id="2KRUNf1mIsD" role="3uHU7B">
                           <node concept="37vLTw" id="2KRUNf1mHlr" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2KRUNf1mHhI" resolve="defaultValues" />
+                            <ref role="3cqZAo" node="4z0AnX8177Y" resolve="defaultValues" />
                           </node>
                           <node concept="34oBXx" id="2KRUNf1mJG3" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2KRUNf1mHhI" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8177Y" role="1bW2Oz">
                     <property role="TrG5h" value="defaultValues" />
-                    <node concept="2jxLKc" id="2KRUNf1mHhJ" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8177Z" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/org.iets3.core.expr.data.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/org.iets3.core.expr.data.mpl
index 48af08a823..18d4cdc90d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/org.iets3.core.expr.data.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.data/org.iets3.core.expr.data.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">7e450f4e-1ac3-41ef-a851-4598161bdb94(de.slisson.mps.tables)</dependency>
@@ -33,7 +32,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -55,7 +54,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/behavior.mps
index 8aa485fee2..67615455dc 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/behavior.mps
@@ -118,7 +118,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -131,7 +131,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -139,6 +139,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -223,7 +224,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -245,7 +246,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1197683403723" name="jetbrains.mps.baseLanguage.collections.structure.MapType" flags="in" index="3rvAFt">
@@ -679,11 +679,11 @@
                                 <node concept="3clFbF" id="2vkvJYSR2su" role="3cqZAp">
                                   <node concept="3clFbC" id="2vkvJYSR2sv" role="3clFbG">
                                     <node concept="37vLTw" id="2vkvJYSR2sw" role="3uHU7w">
-                                      <ref role="3cqZAo" node="2vkvJYSQVKc" resolve="p" />
+                                      <ref role="3cqZAo" node="4z0AnX81786" resolve="p" />
                                     </node>
                                     <node concept="2OqwBi" id="2vkvJYSR2sx" role="3uHU7B">
                                       <node concept="37vLTw" id="2vkvJYSR2sy" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="2vkvJYSR2s$" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX81784" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="2vkvJYSR2sz" role="2OqNvi">
                                         <ref role="3Tt5mk" to="gx5r:2vkvJYSQEwb" resolve="param" />
@@ -692,9 +692,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="2vkvJYSR2s$" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX81784" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="2vkvJYSR2s_" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX81785" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -702,9 +702,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2vkvJYSQVKc" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX81786" role="1bW2Oz">
                     <property role="TrG5h" value="p" />
-                    <node concept="2jxLKc" id="2vkvJYSQVKd" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX81787" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -901,7 +901,7 @@
                   <node concept="3clFbF" id="2nByCcxAqyQ" role="3cqZAp">
                     <node concept="2OqwBi" id="2nByCcxAqHg" role="3clFbG">
                       <node concept="37vLTw" id="2nByCcxAqyP" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2nByCcxAqwz" resolve="ipr" />
+                        <ref role="3cqZAo" node="4z0AnX8178a" resolve="ipr" />
                       </node>
                       <node concept="1P9Npp" id="2nByCcxArcZ" role="2OqNvi">
                         <node concept="2pJPEk" id="2nByCcxArhv" role="1P9ThW">
@@ -927,7 +927,7 @@
                                             <node concept="2OqwBi" id="2nByCcxAEwb" role="3uHU7w">
                                               <node concept="2OqwBi" id="2nByCcxCr36" role="2Oq$k0">
                                                 <node concept="37vLTw" id="2nByCcxCcrS" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="2nByCcxAqwz" resolve="ipr" />
+                                                  <ref role="3cqZAo" node="4z0AnX8178a" resolve="ipr" />
                                                 </node>
                                                 <node concept="3TrEf2" id="2nByCcxCr_f" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="gx5r:4YhD5cZsmN4" resolve="port" />
@@ -939,7 +939,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="2nByCcxACcb" role="3uHU7B">
                                               <node concept="37vLTw" id="2nByCcxABUf" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="2nByCcxABH$" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX81788" resolve="it" />
                                               </node>
                                               <node concept="3TrcHB" id="2nByCcxACEG" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -948,9 +948,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="2nByCcxABH$" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX81788" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="2nByCcxABH_" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX81789" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -963,9 +963,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2nByCcxAqwz" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178a" role="1bW2Oz">
                   <property role="TrG5h" value="ipr" />
-                  <node concept="2jxLKc" id="2nByCcxAqw$" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178b" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -997,7 +997,7 @@
                   <node concept="3clFbF" id="2nByCcxAFlo" role="3cqZAp">
                     <node concept="2OqwBi" id="2nByCcxAFlp" role="3clFbG">
                       <node concept="37vLTw" id="2nByCcxAFlq" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2nByCcxAFlL" resolve="pr" />
+                        <ref role="3cqZAo" node="4z0AnX8178e" resolve="pr" />
                       </node>
                       <node concept="1P9Npp" id="2nByCcxAFlr" role="2OqNvi">
                         <node concept="2pJPEk" id="2nByCcxAFls" role="1P9ThW">
@@ -1023,7 +1023,7 @@
                                             <node concept="2OqwBi" id="2nByCcxAFlD" role="3uHU7w">
                                               <node concept="2OqwBi" id="2nByCcxCAL_" role="2Oq$k0">
                                                 <node concept="37vLTw" id="2nByCcxCc9W" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="2nByCcxAFlL" resolve="pr" />
+                                                  <ref role="3cqZAo" node="4z0AnX8178e" resolve="pr" />
                                                 </node>
                                                 <node concept="3TrEf2" id="2nByCcxCE7u" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="gx5r:2vkvJYSMWJA" resolve="param" />
@@ -1035,7 +1035,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="2nByCcxAFlG" role="3uHU7B">
                                               <node concept="37vLTw" id="2nByCcxAFlH" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="2nByCcxAFlJ" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX8178c" resolve="it" />
                                               </node>
                                               <node concept="3TrcHB" id="2nByCcxAFlI" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1044,9 +1044,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="2nByCcxAFlJ" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX8178c" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="2nByCcxAFlK" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX8178d" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -1059,9 +1059,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2nByCcxAFlL" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178e" role="1bW2Oz">
                   <property role="TrG5h" value="pr" />
-                  <node concept="2jxLKc" id="2nByCcxAFlM" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178f" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1716,7 +1716,7 @@
                   <node concept="3clFbF" id="2nByCcxUvdy" role="3cqZAp">
                     <node concept="2OqwBi" id="2nByCcxUvdz" role="3clFbG">
                       <node concept="37vLTw" id="2nByCcxUvd$" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2nByCcxUvdX" resolve="ipr" />
+                        <ref role="3cqZAo" node="4z0AnX8178i" resolve="ipr" />
                       </node>
                       <node concept="1P9Npp" id="2nByCcxUvd_" role="2OqNvi">
                         <node concept="2pJPEk" id="2nByCcxUvdA" role="1P9ThW">
@@ -1742,7 +1742,7 @@
                                             <node concept="2OqwBi" id="2nByCcxUvdN" role="3uHU7w">
                                               <node concept="2OqwBi" id="2nByCcxUvdO" role="2Oq$k0">
                                                 <node concept="37vLTw" id="2nByCcxUvdP" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="2nByCcxUvdX" resolve="ipr" />
+                                                  <ref role="3cqZAo" node="4z0AnX8178i" resolve="ipr" />
                                                 </node>
                                                 <node concept="3TrEf2" id="2nByCcxUvdQ" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="gx5r:4YhD5cZsmN4" resolve="port" />
@@ -1754,7 +1754,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="2nByCcxUvdS" role="3uHU7B">
                                               <node concept="37vLTw" id="2nByCcxUvdT" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="2nByCcxUvdV" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX8178g" resolve="it" />
                                               </node>
                                               <node concept="3TrcHB" id="2nByCcxUvdU" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1763,9 +1763,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="2nByCcxUvdV" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX8178g" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="2nByCcxUvdW" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX8178h" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -1778,9 +1778,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2nByCcxUvdX" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178i" role="1bW2Oz">
                   <property role="TrG5h" value="ipr" />
-                  <node concept="2jxLKc" id="2nByCcxUvdY" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178j" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1812,7 +1812,7 @@
                   <node concept="3clFbF" id="2nByCcxUveb" role="3cqZAp">
                     <node concept="2OqwBi" id="2nByCcxUvec" role="3clFbG">
                       <node concept="37vLTw" id="2nByCcxUved" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2nByCcxUveA" resolve="pr" />
+                        <ref role="3cqZAo" node="4z0AnX8178m" resolve="pr" />
                       </node>
                       <node concept="1P9Npp" id="2nByCcxUvee" role="2OqNvi">
                         <node concept="2pJPEk" id="2nByCcxUvef" role="1P9ThW">
@@ -1838,7 +1838,7 @@
                                             <node concept="2OqwBi" id="2nByCcxUves" role="3uHU7w">
                                               <node concept="2OqwBi" id="2nByCcxUvet" role="2Oq$k0">
                                                 <node concept="37vLTw" id="2nByCcxUveu" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="2nByCcxUveA" resolve="pr" />
+                                                  <ref role="3cqZAo" node="4z0AnX8178m" resolve="pr" />
                                                 </node>
                                                 <node concept="3TrEf2" id="2nByCcxUvev" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="gx5r:2vkvJYSMWJA" resolve="param" />
@@ -1850,7 +1850,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="2nByCcxUvex" role="3uHU7B">
                                               <node concept="37vLTw" id="2nByCcxUvey" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="2nByCcxUve$" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX8178k" resolve="it" />
                                               </node>
                                               <node concept="3TrcHB" id="2nByCcxUvez" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1859,9 +1859,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="2nByCcxUve$" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX8178k" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="2nByCcxUve_" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX8178l" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -1874,9 +1874,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2nByCcxUveA" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178m" role="1bW2Oz">
                   <property role="TrG5h" value="pr" />
-                  <node concept="2jxLKc" id="2nByCcxUveB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178n" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1924,7 +1924,7 @@
                       <node concept="3clFbF" id="2vkvJYTf3Z9" role="3cqZAp">
                         <node concept="2OqwBi" id="2vkvJYTf3Za" role="3clFbG">
                           <node concept="37vLTw" id="2vkvJYTf3Zb" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2vkvJYTf3Ze" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8178o" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="2vkvJYTf3Zc" role="2OqNvi">
                             <ref role="37wK5l" node="5Q9FzcI4YUK" resolve="connectsToOutsidePort" />
@@ -1935,9 +1935,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2vkvJYTf3Ze" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8178o" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2vkvJYTf3Zf" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8178p" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2009,7 +2009,7 @@
                               </node>
                               <node concept="2OqwBi" id="2nByCcxISTN" role="3uHU7B">
                                 <node concept="37vLTw" id="2nByCcxIS_t" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2nByCcxISmE" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8178q" resolve="it" />
                                 </node>
                                 <node concept="3TrcHB" id="2nByCcxITH4" role="2OqNvi">
                                   <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2018,9 +2018,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="2nByCcxISmE" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8178q" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="2nByCcxISmF" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8178r" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2182,7 +2182,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="2nByCcxTyMW" role="3uHU7B">
                                     <node concept="37vLTw" id="2nByCcxTysP" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="2nByCcxTy8Q" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8178s" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="2nByCcxTzgA" role="2OqNvi">
                                       <ref role="3Tt5mk" to="gx5r:2vkvJYSQEwb" resolve="param" />
@@ -2191,9 +2191,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="2nByCcxTy8Q" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8178s" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="2nByCcxTy8R" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8178t" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2246,7 +2246,7 @@
                         <node concept="3clFbF" id="2vkvJYTf_OK" role="3cqZAp">
                           <node concept="2OqwBi" id="2vkvJYTf_OL" role="3clFbG">
                             <node concept="37vLTw" id="2vkvJYTf_OM" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2vkvJYTf_OQ" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX8178u" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="2vkvJYTf_ON" role="2OqNvi">
                               <ref role="37wK5l" node="5Q9FzcI6bZ6" resolve="connectsToInsideInPort" />
@@ -2260,9 +2260,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2vkvJYTf_OQ" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX8178u" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2vkvJYTf_OR" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX8178v" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/constraints.mps
index 52286ac7ca..94cd5c3bc6 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/constraints.mps
@@ -27,7 +27,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/editor.mps
index 51ddf6e588..d6da0c95d9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/editor.mps
@@ -71,7 +71,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -94,7 +94,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -207,7 +207,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -226,6 +226,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -236,7 +237,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -299,7 +300,7 @@
         <reference id="3155126767689025691" name="linkDeclaration" index="aDKIf" />
       </concept>
       <concept id="3462102746004176270" name="de.itemis.mps.editor.diagram.structure.DeleteHandler" flags="ig" index="2fs66k" />
-      <concept id="9064581101900867235" name="de.itemis.mps.editor.diagram.structure.IEdgeEditor" flags="ng" index="ljJFv">
+      <concept id="9064581101900867235" name="de.itemis.mps.editor.diagram.structure.IEdgeEditor" flags="ngI" index="ljJFv">
         <child id="8587703283523592228" name="endpointFrom" index="1PN8q7" />
         <child id="8587703283523592242" name="endpointTo" index="1PN8qh" />
       </concept>
@@ -317,7 +318,7 @@
         <reference id="7464726264117677938" name="shape" index="2xQOue" />
         <child id="3454709602159778495" name="parameterValues" index="1xbcaF" />
       </concept>
-      <concept id="5383048119156619323" name="de.itemis.mps.editor.diagram.structure.IDiagramElementsProvider" flags="ng" index="HB_m5">
+      <concept id="5383048119156619323" name="de.itemis.mps.editor.diagram.structure.IDiagramElementsProvider" flags="ngI" index="HB_m5">
         <child id="3155126767688717334" name="contentList" index="aCds2" />
       </concept>
       <concept id="7890587897031726207" name="de.itemis.mps.editor.diagram.structure.Content_GenericElementQuery" flags="ng" index="2M4AIt">
@@ -406,7 +407,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -426,7 +427,6 @@
       </concept>
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -1088,7 +1088,7 @@
                                           <node concept="17R0WA" id="3_milxHPcFW" role="3clFbG">
                                             <node concept="2OqwBi" id="3_milxHPb7f" role="3uHU7B">
                                               <node concept="37vLTw" id="3_milxHPaSw" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="3_milxHPaK6" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX8178w" resolve="it" />
                                               </node>
                                               <node concept="3TrcHB" id="3_milxHPbGU" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1103,9 +1103,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="3_milxHPaK6" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX8178w" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="3_milxHPaK7" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX8178x" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -1248,7 +1248,7 @@
                                           <node concept="17R0WA" id="3_milxHPdxm" role="3clFbG">
                                             <node concept="2OqwBi" id="3_milxHPdxn" role="3uHU7B">
                                               <node concept="37vLTw" id="3_milxHPdxo" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="3_milxHPdxt" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX8178y" resolve="it" />
                                               </node>
                                               <node concept="3TrcHB" id="3_milxHPdxp" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1263,9 +1263,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="3_milxHPdxt" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX8178y" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="3_milxHPdxu" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX8178z" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -1389,7 +1389,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="3_milxHOACM" role="3uHU7B">
                                     <node concept="37vLTw" id="3_milxHOAhq" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3_milxHO_Xa" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8178$" resolve="it" />
                                     </node>
                                     <node concept="3TrcHB" id="3_milxHOBGd" role="2OqNvi">
                                       <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1398,9 +1398,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="3_milxHO_Xa" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8178$" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="3_milxHO_Xb" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8178_" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -1447,7 +1447,7 @@
                                 <node concept="3clFbF" id="2nByCcxyQw3" role="3cqZAp">
                                   <node concept="2OqwBi" id="2nByCcxyQT5" role="3clFbG">
                                     <node concept="37vLTw" id="2nByCcxyQw2" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="2nByCcxyQ49" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8178A" resolve="it" />
                                     </node>
                                     <node concept="2qgKlT" id="2nByCcxyRtj" role="2OqNvi">
                                       <ref role="37wK5l" to="b4m9:5Q9FzcI4YUK" resolve="connectsToOutsidePort" />
@@ -1466,9 +1466,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="2nByCcxyQ49" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8178A" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="2nByCcxyQ4a" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8178B" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1544,7 +1544,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="2nByCcxzicC" role="3uHU7B">
                                       <node concept="37vLTw" id="2nByCcxzicD" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="2nByCcxzicF" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8178C" resolve="it" />
                                       </node>
                                       <node concept="3TrcHB" id="2nByCcxzicE" role="2OqNvi">
                                         <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1553,9 +1553,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="2nByCcxzicF" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8178C" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="2nByCcxzicG" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8178D" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1594,7 +1594,7 @@
                                 <node concept="3clFbF" id="2nByCcxzlY_" role="3cqZAp">
                                   <node concept="2OqwBi" id="2nByCcxzlYA" role="3clFbG">
                                     <node concept="37vLTw" id="2nByCcxzlYB" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="2nByCcxzlYF" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8178E" resolve="it" />
                                     </node>
                                     <node concept="2qgKlT" id="2nByCcxzlYC" role="2OqNvi">
                                       <ref role="37wK5l" to="b4m9:5Q9FzcI6bZ6" resolve="connectsToInsideInPort" />
@@ -1608,9 +1608,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="2nByCcxzlYF" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8178E" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="2nByCcxzlYG" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8178F" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1918,7 +1918,7 @@
                       <node concept="3clFbF" id="30L$xlcesJh" role="3cqZAp">
                         <node concept="2OqwBi" id="30L$xlcesUF" role="3clFbG">
                           <node concept="37vLTw" id="30L$xlcesJg" role="2Oq$k0">
-                            <ref role="3cqZAo" node="30L$xlcesCL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8178G" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="30L$xlcet9v" role="2OqNvi">
                             <ref role="37wK5l" to="b4m9:30L$xlcejQ2" resolve="connectsToInstance" />
@@ -1927,9 +1927,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="30L$xlcesCL" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8178G" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="30L$xlcesCM" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8178H" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1940,15 +1940,15 @@
                     <node concept="3clFbF" id="30L$xlceuKv" role="3cqZAp">
                       <node concept="2OqwBi" id="30L$xlceuUD" role="3clFbG">
                         <node concept="37vLTw" id="30L$xlceuKu" role="2Oq$k0">
-                          <ref role="3cqZAo" node="30L$xlceuID" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8178I" resolve="it" />
                         </node>
                         <node concept="3YRAZt" id="30L$xlcevpA" role="2OqNvi" />
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="30L$xlceuID" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8178I" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="30L$xlceuIE" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8178J" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/intentions.mps
index e1ad64760b..712b73c736 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/intentions.mps
@@ -52,7 +52,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -90,7 +90,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/structure.mps
index 51e4e4f869..1550db44c7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/structure.mps
@@ -52,7 +52,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/typesystem.mps
index bea5ed8d8d..e3c1f334ee 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/models/typesystem.mps
@@ -73,7 +73,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -85,6 +85,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -169,7 +170,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -189,7 +190,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -293,7 +293,7 @@
                       <node concept="3clFbF" id="5Q9FzcI57n0" role="3cqZAp">
                         <node concept="2OqwBi" id="5Q9FzcI57n1" role="3clFbG">
                           <node concept="37vLTw" id="5Q9FzcI57n2" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Q9FzcI57n5" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8178K" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="5Q9FzcI57n3" role="2OqNvi">
                             <ref role="37wK5l" to="b4m9:5Q9FzcI4YUK" resolve="connectsToOutsidePort" />
@@ -304,9 +304,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5Q9FzcI57n5" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8178K" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5Q9FzcI57n6" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8178L" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -401,7 +401,7 @@
                       <node concept="3clFbF" id="5Q9FzcI6uoY" role="3cqZAp">
                         <node concept="2OqwBi" id="5Q9FzcI6uoZ" role="3clFbG">
                           <node concept="37vLTw" id="5Q9FzcI6up0" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Q9FzcI6up4" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8178M" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="5Q9FzcI6up1" role="2OqNvi">
                             <ref role="37wK5l" to="b4m9:5Q9FzcI6bZ6" resolve="connectsToInsideInPort" />
@@ -415,9 +415,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5Q9FzcI6up4" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8178M" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5Q9FzcI6up5" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8178N" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/org.iets3.core.expr.dataflow.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/org.iets3.core.expr.dataflow.mpl
index 92a59e3b02..a1521c9dbb 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/org.iets3.core.expr.dataflow.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.dataflow/org.iets3.core.expr.dataflow.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">1144260c-e9a5-49a2-9add-39a1a1a7077e(de.itemis.mps.editor.diagram.runtime)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/constraints.mps
index 5ff2f1e561..fd393b1905 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/constraints.mps
@@ -33,7 +33,7 @@
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/editor.mps
index a0acce83b7..b1e225e7b9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/editor.mps
@@ -46,7 +46,7 @@
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
       <concept id="1233759184865" name="jetbrains.mps.lang.editor.structure.PunctuationRightStyleClassItem" flags="ln" index="11LMrY" />
       <concept id="3383245079137382180" name="jetbrains.mps.lang.editor.structure.StyleClass" flags="ig" index="14StLt" />
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1139848536355" name="jetbrains.mps.lang.editor.structure.CellModel_WithRole" flags="ng" index="1$h60E">
@@ -60,7 +60,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -96,7 +96,7 @@
       <concept id="1068580320020" name="jetbrains.mps.baseLanguage.structure.IntegerConstant" flags="nn" index="3cmrfG">
         <property id="1068580320021" name="value" index="3cmrfH" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -110,7 +110,7 @@
       <concept id="8207263695490893775" name="com.mbeddr.mpsutil.grammarcells.structure.CellBasedRule" flags="ng" index="2ElW$n">
         <child id="8207263695491670784" name="priority" index="2EmURo" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -133,7 +133,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/migration.mps
index a4f3a48be7..944755cf82 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/migration.mps
@@ -11,7 +11,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/structure.mps
index bdc09f186a..3a158f9c99 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/structure.mps
@@ -42,7 +42,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/typesystem.mps
index bd05ad52c6..4a6017b642 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/models/typesystem.mps
@@ -76,7 +76,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -202,7 +202,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -1558,16 +1558,16 @@
     <property role="TrG5h" value="typeof_ToStringOp" />
     <property role="3GE5qa" value="date.op" />
     <node concept="3clFbS" id="7baKnR5m9ki" role="18ibNy">
-      <node concept="1Z5TYs" id="7baKnR5m9$G" role="3cqZAp">
-        <node concept="mw_s8" id="7baKnR5m9$J" role="1ZfhK$">
-          <node concept="1Z2H0r" id="7baKnR5m9kr" role="mwGJk">
-            <node concept="1YBJjd" id="7baKnR5m9mg" role="1Z2MuG">
+      <node concept="1ZobV4" id="hTGlT9FZOY" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9FZP0" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9FZP1" role="mwGJk">
+            <node concept="1YBJjd" id="hTGlT9FZP2" role="1Z2MuG">
               <ref role="1YBMHb" node="7baKnR5m9kk" resolve="tso" />
             </node>
           </node>
         </node>
-        <node concept="mw_s8" id="7baKnR5m9_6" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zr$" role="mwGJk">
+        <node concept="mw_s8" id="hTGlT9FZP3" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9FZP4" role="mwGJk">
             <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
             <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
           </node>
@@ -2910,20 +2910,20 @@
     <property role="TrG5h" value="typeof_TimeToStringOp" />
     <property role="3GE5qa" value="time.op" />
     <node concept="3clFbS" id="3HiHZeyqRqK" role="18ibNy">
-      <node concept="1Z5TYs" id="3HiHZeyqR_M" role="3cqZAp">
-        <node concept="mw_s8" id="3HiHZeyqRA3" role="1ZfhKB">
-          <node concept="2YIFZM" id="3HiHZeyqRCw" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="3HiHZeyqR_P" role="1ZfhK$">
-          <node concept="1Z2H0r" id="3HiHZeyqRqQ" role="mwGJk">
-            <node concept="1YBJjd" id="3HiHZeyqRsI" role="1Z2MuG">
+      <node concept="1ZobV4" id="hTGlT9FZLB" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9FZLF" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9FZLG" role="mwGJk">
+            <node concept="1YBJjd" id="hTGlT9FZLH" role="1Z2MuG">
               <ref role="1YBMHb" node="3HiHZeyqRqM" resolve="timeToStringOp" />
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9FZLD" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9FZLE" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="3HiHZeyqRqM" role="1YuTPh">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/org.iets3.core.expr.datetime.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/org.iets3.core.expr.datetime.mpl
index c1c1b10148..801a320407 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/org.iets3.core.expr.datetime.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.datetime/org.iets3.core.expr.datetime.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/actions.mps
index 99b955d027..dc0371d466 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/actions.mps
@@ -70,7 +70,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/behavior.mps
index 76bdf0979b..a01fc02833 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/behavior.mps
@@ -113,7 +113,7 @@
         <child id="1154542793668" name="componentType" index="3g7fb8" />
         <child id="1154542803372" name="initValue" index="3g7hyw" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -126,7 +126,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1208890769693" name="jetbrains.mps.baseLanguage.structure.ArrayLengthOperation" flags="nn" index="1Rwk04" />
@@ -158,7 +158,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/constraints.mps
index 693500227e..c6f4b32c7a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/constraints.mps
@@ -42,7 +42,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/editor.mps
index c02ee2cb22..3e8640d828 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/editor.mps
@@ -13,8 +13,8 @@
     <import index="z60i" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.awt(JDK/)" />
     <import index="dxuu" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing(JDK/)" />
     <import index="hyam" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.awt.event(JDK/)" />
-    <import index="lzb2" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui(MPS.IDEA/)" />
     <import index="oq0c" ref="r:6c6155f0-4bbe-4af5-8c26-244d570e21e4(org.iets3.core.expr.base.plugin)" />
+    <import index="lzb2" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui(MPS.IDEA/)" />
     <import index="34lm" ref="r:04cb519f-2059-4c60-9414-918c7823fd79(org.iets3.core.expr.doc.structure)" implicit="true" />
     <import index="itrz" ref="r:80fb0853-eb3b-4e84-aebd-cc7fdb011d97(org.iets3.core.base.editor)" implicit="true" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" implicit="true" />
@@ -74,7 +74,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1088185857835" name="jetbrains.mps.lang.editor.structure.InlineEditorComponent" flags="ig" index="1sVBvm" />
@@ -97,7 +97,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -177,7 +177,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -194,7 +194,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -220,7 +220,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
     </language>
@@ -249,7 +249,7 @@
       <concept id="1228341669568" name="jetbrains.mps.lang.smodel.structure.Node_DetachOperation" flags="nn" index="3YRAZt" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/intentions.mps
index 68e959b442..6d2814f616 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/intentions.mps
@@ -51,7 +51,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -64,6 +64,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -137,7 +138,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -159,7 +160,6 @@
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -229,7 +229,7 @@
                   <node concept="3clFbF" id="2c2AzQcAh15" role="3cqZAp">
                     <node concept="2OqwBi" id="2c2AzQcAhf0" role="3clFbG">
                       <node concept="37vLTw" id="2c2AzQcAh14" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2c2AzQcAgUT" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8178Q" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="2c2AzQcAhF3" role="2OqNvi">
                         <ref role="37wK5l" to="srqo:2c2AzQc_YDC" resolve="takeScreenshot" />
@@ -237,9 +237,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2c2AzQcAgUT" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178Q" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2c2AzQcAgUU" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178R" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -383,15 +383,15 @@
                       <node concept="3clFbF" id="2c2AzQddjhu" role="3cqZAp">
                         <node concept="2OqwBi" id="2c2AzQddjGg" role="3clFbG">
                           <node concept="37vLTw" id="2c2AzQddjht" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2c2AzQddiZm" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8178S" resolve="it" />
                           </node>
                           <node concept="1$rogu" id="2c2AzQddkqI" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2c2AzQddiZm" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8178S" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2c2AzQddiZn" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8178T" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -426,7 +426,7 @@
                     <node concept="3clFbF" id="5AlTalNHAPI" role="3cqZAp">
                       <node concept="2OqwBi" id="5AlTalNHAPJ" role="3clFbG">
                         <node concept="37vLTw" id="5AlTalNHAPK" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5AlTalNHAPN" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8178U" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="5AlTalNHAPL" role="2OqNvi">
                           <node concept="chp4Y" id="5AlTalNHAPM" role="cj9EA">
@@ -436,9 +436,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5AlTalNHAPN" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8178U" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5AlTalNHAPO" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8178V" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -561,7 +561,7 @@
                   <node concept="3clFbF" id="5AlTalNHBc8" role="3cqZAp">
                     <node concept="2OqwBi" id="5AlTalNHBc9" role="3clFbG">
                       <node concept="37vLTw" id="5AlTalNHBca" role="2Oq$k0">
-                        <ref role="3cqZAo" node="5AlTalNHBcd" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8178W" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="5AlTalNHBcb" role="2OqNvi">
                         <node concept="chp4Y" id="5AlTalNHBcc" role="cj9EA">
@@ -571,9 +571,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5AlTalNHBcd" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178W" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5AlTalNHBce" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178X" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -668,7 +668,7 @@
                   <node concept="3clFbF" id="C_BpXjS3OP" role="3cqZAp">
                     <node concept="2OqwBi" id="C_BpXjS3OR" role="3clFbG">
                       <node concept="37vLTw" id="C_BpXjS3OS" role="2Oq$k0">
-                        <ref role="3cqZAo" node="C_BpXjS3Jl" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8178Y" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="C_BpXjS3OT" role="2OqNvi">
                         <ref role="37wK5l" to="srqo:2c2AzQc_YDC" resolve="takeScreenshot" />
@@ -676,9 +676,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="C_BpXjS3Jl" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8178Y" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="C_BpXjS3Jm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8178Z" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/structure.mps
index ce0ae17bbf..a7444b28cb 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/structure.mps
@@ -58,7 +58,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/typesystem.mps
index 33b9db7487..776c67e519 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/models/typesystem.mps
@@ -60,7 +60,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -126,7 +126,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/org.iets3.core.expr.doc.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/org.iets3.core.expr.doc.mpl
index 22cec06c0a..5862197935 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/org.iets3.core.expr.doc.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.doc/org.iets3.core.expr.doc.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">9e24fcdc-a232-4d24-8c95-1f525946191a(com.mbeddr.core.base.pluginSolution)</dependency>
@@ -27,7 +26,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/generator/template/org.iets3.core.expr.genjava.base@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/generator/template/org.iets3.core.expr.genjava.base@generator.mps
index 1018256d96..ba55af361a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/generator/template/org.iets3.core.expr.genjava.base@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/generator/template/org.iets3.core.expr.genjava.base@generator.mps
@@ -73,7 +73,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -126,7 +126,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -194,7 +194,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -226,7 +226,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -294,7 +294,7 @@
       <concept id="5005282049925926521" name="jetbrains.mps.lang.generator.structure.TemplateArgumentParameterExpression" flags="nn" index="v3LJS">
         <reference id="5005282049925926522" name="parameter" index="v3LJV" />
       </concept>
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
         <child id="1722980698497626405" name="actualArgument" index="v9R3O" />
       </concept>
@@ -337,7 +337,7 @@
       <concept id="1195502151594" name="jetbrains.mps.lang.generator.structure.MappingScriptReference" flags="lg" index="1puMqW">
         <reference id="1195502167610" name="mappingScript" index="1puQsG" />
       </concept>
-      <concept id="982871510064032177" name="jetbrains.mps.lang.generator.structure.IParameterizedTemplate" flags="ng" index="1s_3nv">
+      <concept id="982871510064032177" name="jetbrains.mps.lang.generator.structure.IParameterizedTemplate" flags="ngI" index="1s_3nv">
         <child id="982871510064032342" name="parameter" index="1s_3oS" />
       </concept>
       <concept id="982871510068000147" name="jetbrains.mps.lang.generator.structure.TemplateSwitchMacro" flags="lg" index="1sPUBX">
@@ -366,6 +366,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
         <child id="1235746996653" name="function" index="2SgG2M" />
       </concept>
@@ -485,7 +486,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -516,7 +517,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -11349,7 +11349,7 @@
                                         <node concept="2OqwBi" id="4VwmaR3wuMs" role="3clFbG">
                                           <node concept="2OqwBi" id="4VwmaR3wxuZ" role="2Oq$k0">
                                             <node concept="37vLTw" id="4VwmaR3wute" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4VwmaR3wub2" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX81791" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="4VwmaR3wxRo" role="2OqNvi">
                                               <ref role="3Tt5mk" to="hm2y:7NJy08a3O9b" resolve="target" />
@@ -11363,9 +11363,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="4VwmaR3wub2" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX81791" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="4VwmaR3wub3" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX81792" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -13913,7 +13913,7 @@
                                                 <node concept="2OqwBi" id="1URTIF$SSau" role="3clFbG">
                                                   <node concept="2OqwBi" id="1URTIF$SSav" role="2Oq$k0">
                                                     <node concept="37vLTw" id="1URTIF$SSaw" role="2Oq$k0">
-                                                      <ref role="3cqZAo" node="1URTIF$SSaz" resolve="it" />
+                                                      <ref role="3cqZAo" node="4z0AnX81793" resolve="it" />
                                                     </node>
                                                     <node concept="3TrEf2" id="1URTIF$SSax" role="2OqNvi">
                                                       <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -13923,9 +13923,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="1URTIF$SSaz" role="1bW2Oz">
+                                            <node concept="gl6BB" id="4z0AnX81793" role="1bW2Oz">
                                               <property role="TrG5h" value="it" />
-                                              <node concept="2jxLKc" id="1URTIF$SSa$" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="4z0AnX81794" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -14231,7 +14231,7 @@
                                                 <node concept="2OqwBi" id="1URTIF$SHGH" role="3clFbG">
                                                   <node concept="2OqwBi" id="1URTIF$SA$p" role="2Oq$k0">
                                                     <node concept="37vLTw" id="1URTIF$S$qD" role="2Oq$k0">
-                                                      <ref role="3cqZAo" node="1URTIF$Sw5C" resolve="it" />
+                                                      <ref role="3cqZAo" node="4z0AnX81795" resolve="it" />
                                                     </node>
                                                     <node concept="3TrEf2" id="1URTIF$SD3$" role="2OqNvi">
                                                       <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -14241,9 +14241,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="1URTIF$Sw5C" role="1bW2Oz">
+                                            <node concept="gl6BB" id="4z0AnX81795" role="1bW2Oz">
                                               <property role="TrG5h" value="it" />
-                                              <node concept="2jxLKc" id="1URTIF$Sw5D" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="4z0AnX81796" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -14623,7 +14623,7 @@
                                                 <node concept="2OqwBi" id="66if2wb6c79" role="3clFbG">
                                                   <node concept="2OqwBi" id="66if2wb6c7a" role="2Oq$k0">
                                                     <node concept="37vLTw" id="66if2wb6c7b" role="2Oq$k0">
-                                                      <ref role="3cqZAo" node="66if2wb6c7e" resolve="it" />
+                                                      <ref role="3cqZAo" node="4z0AnX81797" resolve="it" />
                                                     </node>
                                                     <node concept="3TrEf2" id="66if2wb6c7c" role="2OqNvi">
                                                       <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -14633,9 +14633,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="66if2wb6c7e" role="1bW2Oz">
+                                            <node concept="gl6BB" id="4z0AnX81797" role="1bW2Oz">
                                               <property role="TrG5h" value="it" />
-                                              <node concept="2jxLKc" id="66if2wb6c7f" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="4z0AnX81798" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -14957,7 +14957,7 @@
                                                 <node concept="2OqwBi" id="66if2wb6qSn" role="3clFbG">
                                                   <node concept="2OqwBi" id="66if2wb6qSo" role="2Oq$k0">
                                                     <node concept="37vLTw" id="66if2wb6qSp" role="2Oq$k0">
-                                                      <ref role="3cqZAo" node="66if2wb6qSs" resolve="it" />
+                                                      <ref role="3cqZAo" node="4z0AnX81799" resolve="it" />
                                                     </node>
                                                     <node concept="3TrEf2" id="66if2wb6qSq" role="2OqNvi">
                                                       <ref role="3Tt5mk" to="hm2y:69zaTr1Z623" resolve="errorLiteral" />
@@ -14967,9 +14967,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="66if2wb6qSs" role="1bW2Oz">
+                                            <node concept="gl6BB" id="4z0AnX81799" role="1bW2Oz">
                                               <property role="TrG5h" value="it" />
-                                              <node concept="2jxLKc" id="66if2wb6qSt" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="4z0AnX8179a" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -16620,6 +16620,23 @@
               </node>
             </node>
           </node>
+          <node concept="3uibUv" id="4z0AnX8fdEl" role="3PaCim">
+            <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+            <node concept="29HgVG" id="4z0AnX8fqou" role="lGtFl">
+              <node concept="3NFfHV" id="4z0AnX8fqov" role="3NFExx">
+                <node concept="3clFbS" id="4z0AnX8fqow" role="2VODD2">
+                  <node concept="3clFbF" id="4z0AnX8fqoA" role="3cqZAp">
+                    <node concept="2OqwBi" id="4z0AnX8fqox" role="3clFbG">
+                      <node concept="3TrEf2" id="4z0AnX8fqo$" role="2OqNvi">
+                        <ref role="3Tt5mk" to="hm2y:6jT4GDwgAvP" resolve="type" />
+                      </node>
+                      <node concept="30H73N" id="4z0AnX8fqo_" role="2Oq$k0" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
         </node>
       </node>
     </node>
@@ -18864,12 +18881,12 @@
                   <node concept="3clFbF" id="6WstIz8LVtF" role="3cqZAp">
                     <node concept="2OqwBi" id="6WstIz8LVCb" role="3clFbG">
                       <node concept="37vLTw" id="6WstIz8LVtE" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6WstIz8LVrq" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX8179b" resolve="it" />
                       </node>
                       <node concept="1P9Npp" id="6WstIz8LW1Q" role="2OqNvi">
                         <node concept="2OqwBi" id="6WstIz8LWfz" role="1P9ThW">
                           <node concept="37vLTw" id="6WstIz8LW4B" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6WstIz8LVrq" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8179b" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="6WstIz8LWuj" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:4CksDrmwwdX" resolve="reduce" />
@@ -18879,9 +18896,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6WstIz8LVrq" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8179b" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6WstIz8LVrr" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8179c" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -19316,7 +19333,7 @@
                                     <node concept="2OqwBi" id="TA$XW2qqzk" role="2Oq$k0">
                                       <node concept="2OqwBi" id="TA$XW2qn8N" role="2Oq$k0">
                                         <node concept="37vLTw" id="TA$XW2qmNj" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="TA$XW2qlZz" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8179f" resolve="it" />
                                         </node>
                                         <node concept="2z74zc" id="TA$XW2qp0y" role="2OqNvi" />
                                       </node>
@@ -19326,15 +19343,15 @@
                                             <node concept="3clFbF" id="TA$XW2rJOj" role="3cqZAp">
                                               <node concept="2OqwBi" id="TA$XW2rJOk" role="3clFbG">
                                                 <node concept="37vLTw" id="TA$XW2rJOl" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="TA$XW2rJOn" resolve="n" />
+                                                  <ref role="3cqZAo" node="4z0AnX8179d" resolve="n" />
                                                 </node>
                                                 <node concept="2ZHEkA" id="TA$XW2rJOm" role="2OqNvi" />
                                               </node>
                                             </node>
                                           </node>
-                                          <node concept="Rh6nW" id="TA$XW2rJOn" role="1bW2Oz">
+                                          <node concept="gl6BB" id="4z0AnX8179d" role="1bW2Oz">
                                             <property role="TrG5h" value="n" />
-                                            <node concept="2jxLKc" id="TA$XW2rJOo" role="1tU5fm" />
+                                            <node concept="2jxLKc" id="4z0AnX8179e" role="1tU5fm" />
                                           </node>
                                         </node>
                                       </node>
@@ -19347,9 +19364,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="TA$XW2qlZz" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8179f" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="TA$XW2qlZ$" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8179g" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/org.iets3.core.expr.genjava.base.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/org.iets3.core.expr.genjava.base.mpl
index 78c81de122..4a4f89db1f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/org.iets3.core.expr.genjava.base.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/org.iets3.core.expr.genjava.base.mpl
@@ -43,7 +43,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -121,7 +121,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
     <dependency reexport="false" scope="generate-into">fd392034-7849-419d-9071-12563d152375(jetbrains.mps.baseLanguage.closures)</dependency>
@@ -132,7 +131,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/generator/template/org.iets3.core.expr.genjava.contracts@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/generator/template/org.iets3.core.expr.genjava.contracts@generator.mps
index 32ff9456ef..cbcc623821 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/generator/template/org.iets3.core.expr.genjava.contracts@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/generator/template/org.iets3.core.expr.genjava.contracts@generator.mps
@@ -76,7 +76,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -106,7 +106,7 @@
       </concept>
       <concept id="1168559333462" name="jetbrains.mps.lang.generator.structure.TemplateDeclarationReference" flags="ln" index="j$656" />
       <concept id="1095672379244" name="jetbrains.mps.lang.generator.structure.TemplateFragment" flags="ng" index="raruj" />
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167168920554" name="jetbrains.mps.lang.generator.structure.BaseMappingRule_Condition" flags="in" index="30G5F_" />
@@ -137,6 +137,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -164,7 +165,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -183,7 +184,6 @@
       <concept id="1176906603202" name="jetbrains.mps.baseLanguage.collections.structure.BinaryOperation" flags="nn" index="56pJg">
         <child id="1176906787974" name="rightExpression" index="576Qk" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1165530316231" name="jetbrains.mps.baseLanguage.collections.structure.IsEmptyOperation" flags="nn" index="1v1jN8" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
@@ -431,7 +431,7 @@
                               <node concept="3fqX7Q" id="kKmKqgh5Sl" role="3clFbG">
                                 <node concept="2OqwBi" id="kKmKqgh6dy" role="3fr31v">
                                   <node concept="37vLTw" id="kKmKqgh5Sy" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="kKmKqgh5qo" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8179i" resolve="it" />
                                   </node>
                                   <node concept="3TrcHB" id="kKmKqgh7zd" role="2OqNvi">
                                     <ref role="3TsBF5" to="1mpc:lH$PujNZqX" resolve="warning" />
@@ -440,9 +440,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="kKmKqgh5qo" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8179i" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="kKmKqgh5qp" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8179j" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -461,7 +461,7 @@
                               <node concept="3clFbF" id="kKmKqghioP" role="3cqZAp">
                                 <node concept="2OqwBi" id="kKmKqghiEL" role="3clFbG">
                                   <node concept="37vLTw" id="kKmKqghioO" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="kKmKqghi7Y" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8179k" resolve="it" />
                                   </node>
                                   <node concept="3TrcHB" id="kKmKqghjJF" role="2OqNvi">
                                     <ref role="3TsBF5" to="1mpc:lH$PujNZqX" resolve="warning" />
@@ -469,9 +469,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="kKmKqghi7Y" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8179k" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="kKmKqghi7Z" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8179l" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/editor.mps
index 143def6382..f9fd1a6ab8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/editor.mps
@@ -30,7 +30,7 @@
       <concept id="1186414536763" name="jetbrains.mps.lang.editor.structure.BooleanStyleSheetItem" flags="ln" index="VOi$J">
         <property id="1186414551515" name="flag" index="VOm3f" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1236262245656" name="jetbrains.mps.lang.editor.structure.MatchingLabelStyleClassItem" flags="ln" index="3mYdg7">
@@ -47,7 +47,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/structure.mps
index 57720d787b..9188aa098e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/structure.mps
@@ -34,7 +34,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/typesystem.mps
index df48007a5a..3b6e845d3b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/models/typesystem.mps
@@ -99,7 +99,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/org.iets3.core.expr.genjava.contracts.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/org.iets3.core.expr.genjava.contracts.mpl
index 66b46e6088..493877c095 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/org.iets3.core.expr.genjava.contracts.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.contracts/org.iets3.core.expr.genjava.contracts.mpl
@@ -32,7 +32,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -66,12 +66,11 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/generator/templates/org.iets3.core.expr.genjava.data.generator.templates@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/generator/templates/org.iets3.core.expr.genjava.data.generator.templates@generator.mps
index fd1294181c..6d281a772c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/generator/templates/org.iets3.core.expr.genjava.data.generator.templates@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/generator/templates/org.iets3.core.expr.genjava.data.generator.templates@generator.mps
@@ -113,7 +113,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -130,7 +130,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163670490218" name="jetbrains.mps.baseLanguage.structure.SwitchStatement" flags="nn" index="3KaCP$">
@@ -169,7 +169,7 @@
         <reference id="1200911342686" name="sourceConcept" index="2rTdP9" />
         <reference id="1200913004646" name="targetConcept" index="2rZz_L" />
       </concept>
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167168920554" name="jetbrains.mps.lang.generator.structure.BaseMappingRule_Condition" flags="in" index="30G5F_" />
@@ -217,6 +217,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -289,7 +290,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -318,7 +319,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
@@ -707,7 +707,7 @@
                                           <node concept="30H73N" id="4NOdIlYzz$y" role="3uHU7w" />
                                           <node concept="2OqwBi" id="4NOdIlYzz$z" role="3uHU7B">
                                             <node concept="37vLTw" id="4NOdIlYzz$$" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4NOdIlYzz$A" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8179m" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="4NOdIlYzz$_" role="2OqNvi">
                                               <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -716,9 +716,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="4NOdIlYzz$A" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX8179m" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="4NOdIlYzz$B" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX8179n" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/org.iets3.core.expr.genjava.data.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/org.iets3.core.expr.genjava.data.mpl
index 9b4289b667..92f5049a84 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/org.iets3.core.expr.genjava.data.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.data/org.iets3.core.expr.genjava.data.mpl
@@ -6,7 +6,7 @@
     </modelRoot>
   </models>
   <facets>
-    <facet type="java">
+    <facet type="java" compile="mps" classes="mps" ext="yes">
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
@@ -19,7 +19,7 @@
         </modelRoot>
       </models>
       <facets>
-        <facet type="java">
+        <facet type="java" compile="mps" classes="mps" ext="no">
           <classes generated="true" path="${module}/generator/classes_gen" />
         </facet>
       </facets>
@@ -34,7 +34,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -102,12 +102,11 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/generator/template/org.iets3.core.expr.genjava.datetime@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/generator/template/org.iets3.core.expr.genjava.datetime@generator.mps
index d3a48adedf..dc10bbe250 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/generator/template/org.iets3.core.expr.genjava.datetime@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/generator/template/org.iets3.core.expr.genjava.datetime@generator.mps
@@ -105,7 +105,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -120,7 +120,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -232,7 +232,7 @@
         <property id="1757699476691236117" name="name_DebugInfo" index="2qtEX9" />
         <property id="1341860900487648621" name="propertyId" index="P4ACc" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/org.iets3.core.expr.genjava.datetime.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/org.iets3.core.expr.genjava.datetime.mpl
index 058fb4ee56..bf77f37d23 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/org.iets3.core.expr.genjava.datetime.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.datetime/org.iets3.core.expr.genjava.datetime.mpl
@@ -38,7 +38,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -104,7 +104,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
     <dependency reexport="false" scope="generate-into">7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)</dependency>
@@ -113,7 +112,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/generator/template/org.iets3.core.expr.genjava.messages@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/generator/template/org.iets3.core.expr.genjava.messages@generator.mps
index d73dd0e891..5aaf1e2d58 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/generator/template/org.iets3.core.expr.genjava.messages@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/generator/template/org.iets3.core.expr.genjava.messages@generator.mps
@@ -95,7 +95,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -112,7 +112,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -152,7 +152,7 @@
         <reference id="1200911342686" name="sourceConcept" index="2rTdP9" />
         <reference id="1200913004646" name="targetConcept" index="2rZz_L" />
       </concept>
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167168920554" name="jetbrains.mps.lang.generator.structure.BaseMappingRule_Condition" flags="in" index="30G5F_" />
@@ -203,6 +203,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -282,7 +283,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -290,7 +291,6 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1240687580870" name="jetbrains.mps.baseLanguage.collections.structure.JoinOperation" flags="nn" index="3uJxvA">
         <child id="1240687658305" name="delimiter" index="3uJOhx" />
       </concept>
@@ -625,7 +625,7 @@
                       <node concept="3clFbF" id="5LerK4rhf0N" role="3cqZAp">
                         <node concept="2OqwBi" id="5LerK4rhf0O" role="3clFbG">
                           <node concept="37vLTw" id="5LerK4rhf0P" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5LerK4rhf0R" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8179o" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="5LerK4rhf0Q" role="2OqNvi">
                             <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -633,9 +633,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5LerK4rhf0R" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8179o" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5LerK4rhf0S" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8179p" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/org.iets3.core.expr.genjava.messages.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/org.iets3.core.expr.genjava.messages.mpl
index 2977c781a3..c7a8e6402c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/org.iets3.core.expr.genjava.messages.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.messages/org.iets3.core.expr.genjava.messages.mpl
@@ -35,7 +35,7 @@
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -105,7 +105,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
   </dependencies>
@@ -113,7 +112,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/generator/template/org.iets3.core.expr.genjava.simpleTypes@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/generator/template/org.iets3.core.expr.genjava.simpleTypes@generator.mps
index 6bfe9644c6..ec7e995adc 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/generator/template/org.iets3.core.expr.genjava.simpleTypes@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/generator/template/org.iets3.core.expr.genjava.simpleTypes@generator.mps
@@ -2,8 +2,8 @@
 <model ref="r:3490917a-a35f-43d7-9a1f-1311fda2da92(main@generator)">
   <persistence version="9" />
   <languages>
-    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
-    <use id="b401a680-8325-4110-8fd3-84331ff25bef" name="jetbrains.mps.lang.generator" version="4" />
+    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
+    <use id="b401a680-8325-4110-8fd3-84331ff25bef" name="jetbrains.mps.lang.generator" version="-1" />
     <use id="d7706f63-9be2-479c-a3da-ae92af1e64d5" name="jetbrains.mps.lang.generator.generationContext" version="2" />
     <devkit ref="a2eb3a43-fcc2-4200-80dc-c60110c4862d(jetbrains.mps.devkit.templates)" />
   </languages>
@@ -137,7 +137,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -159,7 +159,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5497648299878491908" name="jetbrains.mps.baseLanguage.structure.BaseVariableReference" flags="nn" index="1M0zk4">
@@ -198,7 +198,7 @@
         <child id="1167340453568" name="reductionMappingRule" index="3aUrZf" />
       </concept>
       <concept id="1095672379244" name="jetbrains.mps.lang.generator.structure.TemplateFragment" flags="ng" index="raruj" />
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167168920554" name="jetbrains.mps.lang.generator.structure.BaseMappingRule_Condition" flags="in" index="30G5F_" />
@@ -237,6 +237,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -332,7 +333,7 @@
         <property id="1757699476691236117" name="name_DebugInfo" index="2qtEX9" />
         <property id="1341860900487648621" name="propertyId" index="P4ACc" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -351,7 +352,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -4232,7 +4232,7 @@
                                           <node concept="2OqwBi" id="4ZjVa_SdrJ_" role="3uHU7w">
                                             <node concept="2OqwBi" id="4ZjVa_Sdk3K" role="2Oq$k0">
                                               <node concept="37vLTw" id="4ZjVa_SdiXc" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="4ZjVa_Sd0Jx" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX8179q" resolve="it" />
                                               </node>
                                               <node concept="2qgKlT" id="4ZjVa_SdoVg" role="2OqNvi">
                                                 <ref role="37wK5l" to="tbr6:3Q5enzfMT4t" resolve="toTextString" />
@@ -4242,7 +4242,7 @@
                                           </node>
                                           <node concept="2OqwBi" id="4ZjVa_Sd6$7" role="3uHU7B">
                                             <node concept="37vLTw" id="4ZjVa_Sd5sB" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4ZjVa_Sd0Jx" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8179q" resolve="it" />
                                             </node>
                                             <node concept="1mIQ4w" id="4ZjVa_SdbpA" role="2OqNvi">
                                               <node concept="chp4Y" id="4ZjVa_SddKT" role="cj9EA">
@@ -4253,9 +4253,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="4ZjVa_Sd0Jx" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX8179q" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="4ZjVa_Sd0Jy" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX8179r" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -7101,6 +7101,7 @@
     <property role="TrG5h" value="SwitchPrimitiveType" />
     <ref role="phYkn" to="rw5i:10wUh3ORqUF" resolve="Type" />
     <node concept="3aamgX" id="2bLbgty8Z8R" role="3aUrZf">
+      <property role="36QftV" value="true" />
       <ref role="30HIoZ" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
       <node concept="1Koe21" id="2oTl_D$0r$1" role="1lVwrX">
         <node concept="3clFb_" id="2oTl_D$0r$h" role="1Koe22">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/org.iets3.core.expr.genjava.simpleTypes.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/org.iets3.core.expr.genjava.simpleTypes.mpl
index e95437583a..da2e661943 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/org.iets3.core.expr.genjava.simpleTypes.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.simpleTypes/org.iets3.core.expr.genjava.simpleTypes.mpl
@@ -39,7 +39,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -109,7 +109,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
     <dependency reexport="false" scope="generate-into">fd392034-7849-419d-9071-12563d152375(jetbrains.mps.baseLanguage.closures)</dependency>
@@ -119,7 +118,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/generator/template/main@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/generator/template/main@generator.mps
index c63bca2365..9fdcb43967 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/generator/template/main@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/generator/template/main@generator.mps
@@ -24,7 +24,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
@@ -107,7 +107,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -127,7 +127,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -156,7 +156,7 @@
         <reference id="1168619429071" name="applicableConcept" index="n9lRv" />
       </concept>
       <concept id="1095672379244" name="jetbrains.mps.lang.generator.structure.TemplateFragment" flags="ng" index="raruj" />
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167169188348" name="jetbrains.mps.lang.generator.structure.TemplateFunctionParameter_sourceNode" flags="nn" index="30H73N" />
@@ -237,7 +237,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/editor.mps
index 54c3e0535e..cfcd2a78e0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/editor.mps
@@ -45,7 +45,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -74,7 +74,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -82,7 +82,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/org.iets3.core.expr.genjava.stateMachineExample.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/org.iets3.core.expr.genjava.stateMachineExample.migration.mps
index d106b70259..b95d0ab5de 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/org.iets3.core.expr.genjava.stateMachineExample.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/org.iets3.core.expr.genjava.stateMachineExample.migration.mps
@@ -28,7 +28,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/structure.mps
index 1c2de2baeb..640bf54dce 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/structure.mps
@@ -42,7 +42,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/typesystem.mps
index b9d6f40d25..3212b2b65f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/models/typesystem.mps
@@ -51,7 +51,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/org.iets3.core.expr.genjava.stateMachineExample.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/org.iets3.core.expr.genjava.stateMachineExample.mpl
index 97fa6edd0b..cd65eb3e48 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/org.iets3.core.expr.genjava.stateMachineExample.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/org.iets3.core.expr.genjava.stateMachineExample.mpl
@@ -32,7 +32,7 @@
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -94,7 +94,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -105,7 +104,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/models/org.iets3.core.expr.genjava.stateMachineExample.runtime.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/models/org.iets3.core.expr.genjava.stateMachineExample.runtime.mps
index b12fbe6593..3bd5c2083e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/models/org.iets3.core.expr.genjava.stateMachineExample.runtime.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/models/org.iets3.core.expr.genjava.stateMachineExample.runtime.mps
@@ -77,7 +77,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -94,7 +94,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -102,7 +102,7 @@
       <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/org.iets3.core.expr.genjava.stateMachineExample.runtime.msd b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/org.iets3.core.expr.genjava.stateMachineExample.runtime.msd
index a902f9f61c..e6e73a171c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/org.iets3.core.expr.genjava.stateMachineExample.runtime.msd
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/runtime/org.iets3.core.expr.genjava.stateMachineExample.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.stateMachineExample.runtime" uuid="c49c312b-d054-42ac-9d93-44ec8758c28b" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.stateMachineExample.runtime" uuid="c49c312b-d054-42ac-9d93-44ec8758c28b" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,11 +10,10 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/models/org.iets3.core.expr.genjava.stateMachineExample.sandbox.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/models/org.iets3.core.expr.genjava.stateMachineExample.sandbox.mps
index 97d3e754d2..a62724fac4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/models/org.iets3.core.expr.genjava.stateMachineExample.sandbox.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/models/org.iets3.core.expr.genjava.stateMachineExample.sandbox.mps
@@ -7,7 +7,7 @@
   <imports />
   <registry>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811036" name="org.iets3.core.expr.base.structure.ContractItem" flags="ng" index="I61DS">
@@ -52,7 +52,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/org.iets3.core.expr.genjava.stateMachineExample.sandbox.msd b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/org.iets3.core.expr.genjava.stateMachineExample.sandbox.msd
index 6e436a92ec..8815b1f826 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/org.iets3.core.expr.genjava.stateMachineExample.sandbox.msd
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stateMachineExample/sandbox/org.iets3.core.expr.genjava.stateMachineExample.sandbox.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.stateMachineExample.sandbox" uuid="6b5eff48-8eaa-4e24-9818-9fbfa6c3532c" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.stateMachineExample.sandbox" uuid="6b5eff48-8eaa-4e24-9818-9fbfa6c3532c" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -22,7 +21,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/generator/templates/org.iets3.core.expr.genjava.stringvalidation.generator.templates@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/generator/templates/org.iets3.core.expr.genjava.stringvalidation.generator.templates@generator.mps
index d563178350..2464c83383 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/generator/templates/org.iets3.core.expr.genjava.stringvalidation.generator.templates@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/generator/templates/org.iets3.core.expr.genjava.stringvalidation.generator.templates@generator.mps
@@ -68,7 +68,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -79,7 +79,7 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -147,7 +147,7 @@
         <property id="1757699476691236117" name="name_DebugInfo" index="2qtEX9" />
         <property id="1341860900487648621" name="propertyId" index="P4ACc" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/org.iets3.core.expr.genjava.stringvalidation.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/org.iets3.core.expr.genjava.stringvalidation.mpl
index b7b832a3cb..9da54a0565 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/org.iets3.core.expr.genjava.stringvalidation.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.stringvalidation/org.iets3.core.expr.genjava.stringvalidation.mpl
@@ -35,7 +35,7 @@
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -104,7 +104,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">83888646-71ce-4f1c-9c53-c54016f6ad4f(jetbrains.mps.baseLanguage.collections)</dependency>
   </dependencies>
@@ -112,7 +111,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/generator/template/org.iets3.core.expr.genjava.temporal@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/generator/template/org.iets3.core.expr.genjava.temporal@generator.mps
index ac5ef975dd..6ec7fceb06 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/generator/template/org.iets3.core.expr.genjava.temporal@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/generator/template/org.iets3.core.expr.genjava.temporal@generator.mps
@@ -133,7 +133,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -150,7 +150,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -294,7 +294,7 @@
         <property id="1757699476691236117" name="name_DebugInfo" index="2qtEX9" />
         <property id="1341860900487648621" name="propertyId" index="P4ACc" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/org.iets3.core.expr.genjava.temporal.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/org.iets3.core.expr.genjava.temporal.mpl
index b21578c4e7..dfabec4319 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/org.iets3.core.expr.genjava.temporal.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.temporal/org.iets3.core.expr.genjava.temporal.mpl
@@ -42,7 +42,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -115,7 +115,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
     <dependency reexport="false" scope="generate-into">fd392034-7849-419d-9071-12563d152375(jetbrains.mps.baseLanguage.closures)</dependency>
@@ -125,7 +124,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/generator/template/org.iets3.core.expr.genjava.tests@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/generator/template/org.iets3.core.expr.genjava.tests@generator.mps
index b6b1bcee7a..d6b3caaddb 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/generator/template/org.iets3.core.expr.genjava.tests@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/generator/template/org.iets3.core.expr.genjava.tests@generator.mps
@@ -54,7 +54,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -153,7 +153,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -176,7 +176,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -213,7 +213,7 @@
         <reference id="1168619429071" name="applicableConcept" index="n9lRv" />
       </concept>
       <concept id="1095672379244" name="jetbrains.mps.lang.generator.structure.TemplateFragment" flags="ng" index="raruj" />
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="7473026166162297915" name="jetbrains.mps.lang.generator.structure.DropAttributeRule" flags="lg" index="CY16f">
@@ -265,6 +265,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -309,7 +310,7 @@
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
-      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ng" index="3_9gw8">
+      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ngI" index="3_9gw8">
         <child id="1172075534298" name="message" index="3_9lra" />
       </concept>
     </language>
@@ -378,7 +379,7 @@
         <property id="1757699476691236117" name="name_DebugInfo" index="2qtEX9" />
         <property id="1341860900487648621" name="propertyId" index="P4ACc" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -401,7 +402,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
@@ -545,7 +545,7 @@
                               <node concept="3fqX7Q" id="1Ds3skyz5bd" role="3clFbG">
                                 <node concept="2OqwBi" id="1Ds3skyz5SZ" role="3fr31v">
                                   <node concept="37vLTw" id="1Ds3skyz5bu" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1Ds3skyz4L1" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX8179t" resolve="it" />
                                   </node>
                                   <node concept="1mIQ4w" id="1Ds3skyz75X" role="2OqNvi">
                                     <node concept="chp4Y" id="1Ds3skyz7zb" role="cj9EA">
@@ -556,9 +556,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1Ds3skyz4L1" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX8179t" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="1Ds3skyz4L2" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX8179u" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -2226,7 +2226,7 @@
                                         <node concept="2OqwBi" id="27xhIwhfIhZ" role="10QFUP">
                                           <node concept="2OqwBi" id="27xhIwhfGYQ" role="2Oq$k0">
                                             <node concept="37vLTw" id="27xhIwhfGuU" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="27xhIwhfvzW" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8179v" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="27xhIwhfHrV" role="2OqNvi">
                                               <ref role="3Tt5mk" to="av4b:6HHp2WmRVXx" resolve="item" />
@@ -2254,7 +2254,7 @@
                                 <node concept="2OqwBi" id="27xhIwhfwO2" role="2Oq$k0">
                                   <node concept="2OqwBi" id="27xhIwhfvTU" role="2Oq$k0">
                                     <node concept="37vLTw" id="27xhIwhfvDU" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="27xhIwhfvzW" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8179v" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="27xhIwhfw8C" role="2OqNvi">
                                       <ref role="3Tt5mk" to="av4b:6HHp2WmRVXx" resolve="item" />
@@ -2273,9 +2273,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="27xhIwhfvzW" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX8179v" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="27xhIwhfvzX" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX8179w" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/org.iets3.core.expr.genjava.tests.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/org.iets3.core.expr.genjava.tests.mpl
index 1b6d3bbaf6..3312c60c65 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/org.iets3.core.expr.genjava.tests.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.tests/org.iets3.core.expr.genjava.tests.mpl
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <language namespace="org.iets3.core.expr.genjava.tests" uuid="e75207bb-7b13-40bd-b80b-c8fe625c4ee2" languageVersion="0" moduleVersion="0">
   <models>
-    <modelRoot contentPath="${module}" type="default">
+    <modelRoot type="default" contentPath="${module}">
       <sourceRoot location="models" />
     </modelRoot>
   </models>
@@ -38,7 +38,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -114,7 +114,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
     <dependency reexport="false" scope="generate-into">fd392034-7849-419d-9071-12563d152375(jetbrains.mps.baseLanguage.closures)</dependency>
@@ -125,7 +124,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -180,6 +179,9 @@
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
     <module reference="e75207bb-7b13-40bd-b80b-c8fe625c4ee2(org.iets3.core.expr.genjava.tests)" version="0" />
   </dependencyVersions>
+  <runtime>
+    <dependency reexport="false">68da6d9d-3ccf-4255-b4f7-37603cd89090(org.iets3.core.expr.genjava.tests.rt)</dependency>
+  </runtime>
   <extendedLanguages />
 </language>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/generator/template/org.iets3.core.expr.genjava.toplevel@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/generator/template/org.iets3.core.expr.genjava.toplevel@generator.mps
index f076de626e..4024d45947 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/generator/template/org.iets3.core.expr.genjava.toplevel@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/generator/template/org.iets3.core.expr.genjava.toplevel@generator.mps
@@ -73,7 +73,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -150,7 +150,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -209,7 +209,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -233,7 +233,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -305,7 +305,7 @@
         <reference id="1200911342686" name="sourceConcept" index="2rTdP9" />
         <reference id="1200913004646" name="targetConcept" index="2rZz_L" />
       </concept>
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="2880994019885263148" name="jetbrains.mps.lang.generator.structure.LoopMacroNamespaceAccessor" flags="ng" index="$GB7w">
@@ -370,6 +370,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -484,7 +485,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -524,7 +525,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -2442,7 +2442,7 @@
                                         <node concept="2OqwBi" id="441I_tWCz6S" role="3clFbG">
                                           <node concept="2OqwBi" id="441I_tWCvdw" role="2Oq$k0">
                                             <node concept="37vLTw" id="441I_tWCuAM" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="441I_tWCtNG" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8179x" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="441I_tWCxip" role="2OqNvi">
                                               <ref role="3Tt5mk" to="tpee:h9B3oxE" resolve="visibility" />
@@ -2456,9 +2456,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="441I_tWCtNG" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX8179x" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="441I_tWCtNH" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX8179y" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -2526,7 +2526,7 @@
                                         <node concept="2OqwBi" id="2cnTPpTo0Wt" role="3clFbG">
                                           <node concept="2OqwBi" id="2cnTPpT$fUv" role="2Oq$k0">
                                             <node concept="37vLTw" id="2cnTPpT$fDo" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="2cnTPpTnQko" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX8179z" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="2cnTPpT$gdk" role="2OqNvi">
                                               <ref role="3Tt5mk" to="yv47:4ptnK4jbqZQ" resolve="field" />
@@ -2536,9 +2536,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="2cnTPpTnQko" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX8179z" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="2cnTPpTnQkp" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX8179$" role="1tU5fm" />
                                     </node>
                                   </node>
                                   <node concept="1nlBCl" id="2cnTPpTnQkq" role="2S7zOq">
@@ -2632,7 +2632,7 @@
                       <node concept="3clFbF" id="2cnTPpTnunO" role="3cqZAp">
                         <node concept="2OqwBi" id="2cnTPpTnuTz" role="3clFbG">
                           <node concept="37vLTw" id="2cnTPpTnunN" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2cnTPpTnu2o" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8179_" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="2cnTPpTnvTQ" role="2OqNvi">
                             <node concept="chp4Y" id="2cnTPpTnwct" role="cj9EA">
@@ -2642,9 +2642,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2cnTPpTnu2o" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8179_" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2cnTPpTnu2p" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8179A" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -6932,7 +6932,7 @@
                           <node concept="2OqwBi" id="oj24_oaDOY" role="3uHU7B">
                             <node concept="2OqwBi" id="oj24_oa$_w" role="2Oq$k0">
                               <node concept="37vLTw" id="oj24_oa$lw" role="2Oq$k0">
-                                <ref role="3cqZAo" node="oj24_oa$fo" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8179B" resolve="it" />
                               </node>
                               <node concept="3Tsc0h" id="oj24_oa$YI" role="2OqNvi">
                                 <ref role="3TtcxE" to="yv47:15mJ3JeHVgR" resolve="setters" />
@@ -6943,9 +6943,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="oj24_oa$fo" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8179B" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="oj24_oa$fp" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8179C" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -7193,7 +7193,7 @@
                           <node concept="2OqwBi" id="oj24_oclfD" role="3uHU7B">
                             <node concept="2OqwBi" id="oj24_oclfE" role="2Oq$k0">
                               <node concept="37vLTw" id="oj24_oclfF" role="2Oq$k0">
-                                <ref role="3cqZAo" node="oj24_oclfI" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX8179D" resolve="it" />
                               </node>
                               <node concept="3Tsc0h" id="oj24_oclfG" role="2OqNvi">
                                 <ref role="3TtcxE" to="yv47:15mJ3JeHVgR" resolve="setters" />
@@ -7207,9 +7207,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="oj24_oclfI" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX8179D" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="oj24_oclfJ" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX8179E" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -8993,14 +8993,14 @@
                     <node concept="2OqwBi" id="7rdMSLlhUw_" role="3clFbG">
                       <node concept="2OqwBi" id="7rdMSLlhU1K" role="2Oq$k0">
                         <node concept="37vLTw" id="7rdMSLlhTRT" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7rdMSLlhTOg" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8179F" resolve="it" />
                         </node>
                         <node concept="1mfA1w" id="7rdMSLlhUea" role="2OqNvi" />
                       </node>
                       <node concept="1P9Npp" id="7rdMSLlhUC8" role="2OqNvi">
                         <node concept="2OqwBi" id="7rdMSLlhURZ" role="1P9ThW">
                           <node concept="37vLTw" id="7rdMSLlhUF3" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7rdMSLlhTOg" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX8179F" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="7rdMSLlhV5p" role="2OqNvi">
                             <ref role="37wK5l" to="nu60:4CksDrmwwdX" resolve="reduce" />
@@ -9010,9 +9010,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7rdMSLlhTOg" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX8179F" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7rdMSLlhTOh" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX8179G" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -9919,7 +9919,7 @@
                                   <node concept="2OqwBi" id="Wka9OVqY9o" role="3uHU7B">
                                     <node concept="2OqwBi" id="Wka9OVqY9p" role="2Oq$k0">
                                       <node concept="37vLTw" id="Wka9OVqY9q" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="Wka9OVqY9$" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8179H" resolve="it" />
                                       </node>
                                       <node concept="3JvlWi" id="Wka9OVqY9r" role="2OqNvi" />
                                     </node>
@@ -9932,7 +9932,7 @@
                                   <node concept="2OqwBi" id="Wka9OVqY9u" role="3uHU7w">
                                     <node concept="2OqwBi" id="Wka9OVqY9v" role="2Oq$k0">
                                       <node concept="37vLTw" id="Wka9OVqY9w" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="Wka9OVqY9$" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8179H" resolve="it" />
                                       </node>
                                       <node concept="3JvlWi" id="Wka9OVqY9x" role="2OqNvi" />
                                     </node>
@@ -9945,9 +9945,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="Wka9OVqY9$" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8179H" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="Wka9OVqY9_" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8179I" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -10099,7 +10099,7 @@
                                   <node concept="2OqwBi" id="Wka9OVsPNC" role="3uHU7w">
                                     <node concept="2OqwBi" id="Wka9OVsPND" role="2Oq$k0">
                                       <node concept="37vLTw" id="Wka9OVsPNE" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="Wka9OVsPNO" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8179J" resolve="it" />
                                       </node>
                                       <node concept="3JvlWi" id="Wka9OVsPNF" role="2OqNvi" />
                                     </node>
@@ -10112,7 +10112,7 @@
                                   <node concept="2OqwBi" id="Wka9OVsPNI" role="3uHU7B">
                                     <node concept="2OqwBi" id="Wka9OVsPNJ" role="2Oq$k0">
                                       <node concept="37vLTw" id="Wka9OVsPNK" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="Wka9OVsPNO" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8179J" resolve="it" />
                                       </node>
                                       <node concept="3JvlWi" id="Wka9OVsPNL" role="2OqNvi" />
                                     </node>
@@ -10125,9 +10125,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="Wka9OVsPNO" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8179J" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="Wka9OVsPNP" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8179K" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -10217,7 +10217,7 @@
                                 <node concept="2OqwBi" id="6XE8Bc$gE4H" role="3clFbG">
                                   <node concept="2OqwBi" id="6XE8Bc$gE4I" role="2Oq$k0">
                                     <node concept="37vLTw" id="6XE8Bc$gE4J" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="6XE8Bc$gE4N" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8179L" resolve="it" />
                                     </node>
                                     <node concept="3JvlWi" id="6XE8Bc$gE4K" role="2OqNvi" />
                                   </node>
@@ -10229,9 +10229,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6XE8Bc$gE4N" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX8179L" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="6XE8Bc$gE4O" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX8179M" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -11190,6 +11190,258 @@
       </node>
     </node>
   </node>
+  <node concept="jVnub" id="2nSV6xMJZOQ">
+    <property role="TrG5h" value="switch_EnumSortOrder" />
+    <node concept="3aamgX" id="2nSV6xMJZOR" role="3aUrZf">
+      <property role="36QftV" value="true" />
+      <ref role="30HIoZ" to="yv47:6PMVc5H_jO5" resolve="EnumSortByDeclaration" />
+      <node concept="1Koe21" id="2nSV6xMK138" role="1lVwrX">
+        <node concept="Qs71p" id="2nSV6xMK13e" role="1Koe22">
+          <property role="TrG5h" value="Foo" />
+          <node concept="3clFb_" id="2nSV6xMK13Y" role="jymVt">
+            <property role="TrG5h" value="compare" />
+            <node concept="37vLTG" id="4xqUaW4vhUs" role="3clF46">
+              <property role="TrG5h" value="a" />
+              <node concept="3uibUv" id="4xqUaW4vi4T" role="1tU5fm">
+                <ref role="3uigEE" node="2nSV6xMK13e" resolve="Foo" />
+              </node>
+            </node>
+            <node concept="37vLTG" id="2nSV6xMK13Z" role="3clF46">
+              <property role="TrG5h" value="b" />
+              <node concept="3uibUv" id="2nSV6xMK140" role="1tU5fm">
+                <ref role="3uigEE" node="2nSV6xMK13e" resolve="Foo" />
+              </node>
+            </node>
+            <node concept="3clFbS" id="2nSV6xMK149" role="3clF47">
+              <node concept="3cpWs8" id="2nSV6xMK14a" role="3cqZAp">
+                <node concept="3cpWsn" id="2nSV6xMK14b" role="3cpWs9">
+                  <property role="TrG5h" value="result" />
+                  <node concept="10Oyi0" id="2nSV6xMK14c" role="1tU5fm" />
+                  <node concept="3cmrfG" id="2nSV6xMK14d" role="33vP2m">
+                    <property role="3cmrfH" value="0" />
+                  </node>
+                </node>
+              </node>
+              <node concept="3clFbF" id="2nSV6xML1n8" role="3cqZAp">
+                <node concept="37vLTI" id="2nSV6xMK14f" role="3clFbG">
+                  <node concept="3cpWsd" id="2nSV6xMK14g" role="37vLTx">
+                    <node concept="2OqwBi" id="2nSV6xMK14h" role="3uHU7w">
+                      <node concept="37vLTw" id="2nSV6xMK14i" role="2Oq$k0">
+                        <ref role="3cqZAo" node="2nSV6xMK13Z" resolve="b" />
+                      </node>
+                      <node concept="liA8E" id="2nSV6xMK14j" role="2OqNvi">
+                        <ref role="37wK5l" to="wyt6:~Enum.ordinal()" resolve="ordinal" />
+                      </node>
+                    </node>
+                    <node concept="2OqwBi" id="2nSV6xMK14k" role="3uHU7B">
+                      <node concept="liA8E" id="2nSV6xMK14m" role="2OqNvi">
+                        <ref role="37wK5l" to="wyt6:~Enum.ordinal()" resolve="ordinal" />
+                      </node>
+                      <node concept="37vLTw" id="4xqUaW4viNw" role="2Oq$k0">
+                        <ref role="3cqZAo" node="4xqUaW4vhUs" resolve="a" />
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="37vLTw" id="2nSV6xMK14n" role="37vLTJ">
+                    <ref role="3cqZAo" node="2nSV6xMK14b" resolve="result" />
+                  </node>
+                </node>
+                <node concept="raruj" id="2nSV6xML2al" role="lGtFl" />
+              </node>
+              <node concept="3cpWs6" id="2nSV6xMK16_" role="3cqZAp">
+                <node concept="37vLTw" id="2nSV6xMK16A" role="3cqZAk">
+                  <ref role="3cqZAo" node="2nSV6xMK14b" resolve="result" />
+                </node>
+              </node>
+            </node>
+            <node concept="10Oyi0" id="2nSV6xMK16B" role="3clF45" />
+            <node concept="3Tm1VV" id="2nSV6xMK16C" role="1B3o_S" />
+          </node>
+          <node concept="3Tm1VV" id="2nSV6xMK17A" role="1B3o_S" />
+          <node concept="3uibUv" id="2nSV6xMK17S" role="EKbjA">
+            <ref role="3uigEE" to="33ny:~Comparator" resolve="Comparator" />
+            <node concept="3uibUv" id="2nSV6xMK17T" role="11_B2D">
+              <ref role="3uigEE" node="2nSV6xMK13e" resolve="Foo" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="3aamgX" id="2nSV6xMLtE5" role="3aUrZf">
+      <property role="36QftV" value="true" />
+      <ref role="30HIoZ" to="yv47:6PMVc5H_jNZ" resolve="EnumSortByLiteral" />
+      <node concept="1Koe21" id="2nSV6xMLtZA" role="1lVwrX">
+        <node concept="Qs71p" id="2nSV6xMLtZB" role="1Koe22">
+          <property role="TrG5h" value="Foo" />
+          <node concept="3clFb_" id="2nSV6xMLtZC" role="jymVt">
+            <property role="TrG5h" value="compare" />
+            <node concept="37vLTG" id="4xqUaW4vjlk" role="3clF46">
+              <property role="TrG5h" value="a" />
+              <node concept="3uibUv" id="4xqUaW4vjw$" role="1tU5fm">
+                <ref role="3uigEE" node="2nSV6xMK13e" resolve="Foo" />
+              </node>
+            </node>
+            <node concept="37vLTG" id="2nSV6xMLtZD" role="3clF46">
+              <property role="TrG5h" value="b" />
+              <node concept="3uibUv" id="2nSV6xMLtZE" role="1tU5fm">
+                <ref role="3uigEE" node="2nSV6xMLtZB" resolve="Foo" />
+              </node>
+            </node>
+            <node concept="3clFbS" id="2nSV6xMLtZF" role="3clF47">
+              <node concept="3cpWs8" id="2nSV6xMLtZG" role="3cqZAp">
+                <node concept="3cpWsn" id="2nSV6xMLtZH" role="3cpWs9">
+                  <property role="TrG5h" value="result" />
+                  <node concept="10Oyi0" id="2nSV6xMLtZI" role="1tU5fm" />
+                  <node concept="3cmrfG" id="2nSV6xMLtZJ" role="33vP2m">
+                    <property role="3cmrfH" value="0" />
+                  </node>
+                </node>
+              </node>
+              <node concept="3clFbF" id="2nSV6xMLxVw" role="3cqZAp">
+                <node concept="37vLTI" id="2nSV6xMLxVx" role="3clFbG">
+                  <node concept="37vLTw" id="2nSV6xMLxVy" role="37vLTJ">
+                    <ref role="3cqZAo" node="2nSV6xMLtZH" resolve="result" />
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+                  <node concept="2OqwBi" id="2nSV6xMLxVz" role="37vLTx">
+                    <node concept="2OqwBi" id="2nSV6xMLxV$" role="2Oq$k0">
+                      <node concept="37vLTw" id="4xqUaW4vk0b" role="2Oq$k0">
+                        <ref role="3cqZAo" node="4xqUaW4vjlk" resolve="a" />
+                      </node>
+                      <node concept="liA8E" id="2nSV6xMLxVA" role="2OqNvi">
+                        <ref role="37wK5l" to="wyt6:~Enum.name()" resolve="name" />
+                      </node>
+                    </node>
+                    <node concept="liA8E" id="2nSV6xMLxVB" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~String.compareTo(java.lang.String)" resolve="compareTo" />
+                      <node concept="2OqwBi" id="2nSV6xMLxVC" role="37wK5m">
+                        <node concept="37vLTw" id="2nSV6xMLxVD" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2nSV6xMLtZD" resolve="b" />
+                        </node>
+                        <node concept="liA8E" id="2nSV6xMLxVE" role="2OqNvi">
+                          <ref role="37wK5l" to="wyt6:~Enum.name()" resolve="name" />
+                        </node>
+                      </node>
+                    </node>
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+                </node>
+                <node concept="raruj" id="2nSV6xMLzqF" role="lGtFl" />
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+                <node concept="37vLTw" id="2nSV6xMLtZW" role="3cqZAk">
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+          <node concept="3uibUv" id="2nSV6xMLu00" role="EKbjA">
+            <ref role="3uigEE" to="33ny:~Comparator" resolve="Comparator" />
+            <node concept="3uibUv" id="2nSV6xMLu01" role="11_B2D">
+              <ref role="3uigEE" node="2nSV6xMLtZB" resolve="Foo" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="3aamgX" id="2nSV6xMLt$Y" role="3aUrZf">
+      <property role="36QftV" value="true" />
+      <ref role="30HIoZ" to="yv47:6PMVc5H_jO2" resolve="EnumSortByValue" />
+      <node concept="1Koe21" id="2nSV6xML_uG" role="1lVwrX">
+        <node concept="Qs71p" id="2nSV6xML_uH" role="1Koe22">
+          <property role="TrG5h" value="Foo" />
+          <node concept="3clFb_" id="2nSV6xMLKOn" role="jymVt">
+            <property role="TrG5h" value="getValue" />
+            <node concept="17QB3L" id="2nSV6xMLKOo" role="3clF45" />
+            <node concept="3Tm1VV" id="2nSV6xMLKOw" role="1B3o_S" />
+            <node concept="3clFbS" id="2nSV6xMLKOx" role="3clF47">
+              <node concept="3cpWs6" id="2nSV6xMLKOy" role="3cqZAp">
+                <node concept="Xl_RD" id="2nSV6xMLMnP" role="3cqZAk">
+                  <property role="Xl_RC" value="" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFb_" id="2nSV6xML_uI" role="jymVt">
+            <property role="TrG5h" value="compare" />
+            <node concept="37vLTG" id="4xqUaW4vkWE" role="3clF46">
+              <property role="TrG5h" value="a" />
+              <node concept="3uibUv" id="4xqUaW4vl8y" role="1tU5fm">
+                <ref role="3uigEE" node="2nSV6xML_uH" resolve="Foo" />
+              </node>
+            </node>
+            <node concept="37vLTG" id="2nSV6xML_uJ" role="3clF46">
+              <property role="TrG5h" value="b" />
+              <node concept="3uibUv" id="2nSV6xML_uK" role="1tU5fm">
+                <ref role="3uigEE" node="2nSV6xML_uH" resolve="Foo" />
+              </node>
+            </node>
+            <node concept="3clFbS" id="2nSV6xML_uL" role="3clF47">
+              <node concept="3cpWs8" id="2nSV6xML_uM" role="3cqZAp">
+                <node concept="3cpWsn" id="2nSV6xML_uN" role="3cpWs9">
+                  <property role="TrG5h" value="result" />
+                  <node concept="10Oyi0" id="2nSV6xML_uO" role="1tU5fm" />
+                  <node concept="3cmrfG" id="2nSV6xML_uP" role="33vP2m">
+                    <property role="3cmrfH" value="0" />
+                  </node>
+                </node>
+              </node>
+              <node concept="3clFbF" id="2nSV6xMLBV_" role="3cqZAp">
+                <node concept="37vLTI" id="2nSV6xMLBVA" role="3clFbG">
+                  <node concept="37vLTw" id="2nSV6xMLBVB" role="37vLTJ">
+                    <ref role="3cqZAo" node="2nSV6xML_uN" resolve="result" />
+                  </node>
+                  <node concept="2OqwBi" id="2nSV6xMLBVC" role="37vLTx">
+                    <node concept="2OqwBi" id="2nSV6xMLBVD" role="2Oq$k0">
+                      <node concept="liA8E" id="2nSV6xMLBVE" role="2OqNvi">
+                        <ref role="37wK5l" node="2nSV6xMLKOn" resolve="getValue" />
+                      </node>
+                      <node concept="37vLTw" id="4xqUaW4wp3P" role="2Oq$k0">
+                        <ref role="3cqZAo" node="4xqUaW4vkWE" resolve="a" />
+                      </node>
+                    </node>
+                    <node concept="liA8E" id="2nSV6xMLBVG" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~String.compareTo(java.lang.String)" resolve="compareTo" />
+                      <node concept="2OqwBi" id="2nSV6xMLBVH" role="37wK5m">
+                        <node concept="37vLTw" id="2nSV6xMLBVI" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2nSV6xML_uJ" resolve="b" />
+                        </node>
+                        <node concept="liA8E" id="2nSV6xMLBVJ" role="2OqNvi">
+                          <ref role="37wK5l" node="2nSV6xMLKOn" resolve="getValue" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="raruj" id="2nSV6xMLFtr" role="lGtFl" />
+              </node>
+              <node concept="3cpWs6" id="2nSV6xML_v2" role="3cqZAp">
+                <node concept="37vLTw" id="2nSV6xML_v3" role="3cqZAk">
+                  <ref role="3cqZAo" node="2nSV6xML_uN" resolve="result" />
+                </node>
+              </node>
+            </node>
+            <node concept="10Oyi0" id="2nSV6xML_v4" role="3clF45" />
+            <node concept="3Tm1VV" id="2nSV6xML_v5" role="1B3o_S" />
+          </node>
+          <node concept="3Tm1VV" id="2nSV6xML_v6" role="1B3o_S" />
+          <node concept="3uibUv" id="2nSV6xML_v7" role="EKbjA">
+            <ref role="3uigEE" to="33ny:~Comparator" resolve="Comparator" />
+            <node concept="3uibUv" id="2nSV6xML_v8" role="11_B2D">
+              <ref role="3uigEE" node="2nSV6xML_uH" resolve="Foo" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="j$LIH" id="2nSV6xNcKJN" role="jxRDz">
+      <node concept="1lLz0L" id="2nSV6xNcKZX" role="1lHHLF">
+        <property role="1lMjX7" value="h1lM37o/error" />
+        <property role="1lLB17" value="Can't handle enum sort order" />
+      </node>
+    </node>
+  </node>
   <node concept="13MO4I" id="1li4vsELeNV">
     <property role="TrG5h" value="reduce_EnumDeclaration_with_Value" />
     <ref role="3gUMe" to="yv47:67Y8mp$DMUI" resolve="EnumDeclaration" />
@@ -11743,257 +11995,5 @@
       <node concept="3Tm1VV" id="1li4vsELfYK" role="1B3o_S" />
     </node>
   </node>
-  <node concept="jVnub" id="2nSV6xMJZOQ">
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-    <node concept="3aamgX" id="2nSV6xMJZOR" role="3aUrZf">
-      <property role="36QftV" value="true" />
-      <ref role="30HIoZ" to="yv47:6PMVc5H_jO5" resolve="EnumSortByDeclaration" />
-      <node concept="1Koe21" id="2nSV6xMK138" role="1lVwrX">
-        <node concept="Qs71p" id="2nSV6xMK13e" role="1Koe22">
-          <property role="TrG5h" value="Foo" />
-          <node concept="3clFb_" id="2nSV6xMK13Y" role="jymVt">
-            <property role="TrG5h" value="compare" />
-            <node concept="37vLTG" id="4xqUaW4vhUs" role="3clF46">
-              <property role="TrG5h" value="a" />
-              <node concept="3uibUv" id="4xqUaW4vi4T" role="1tU5fm">
-                <ref role="3uigEE" node="2nSV6xMK13e" resolve="Foo" />
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-            </node>
-            <node concept="37vLTG" id="2nSV6xMK13Z" role="3clF46">
-              <property role="TrG5h" value="b" />
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-                <ref role="3uigEE" node="2nSV6xMK13e" resolve="Foo" />
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-              <node concept="3cpWs8" id="2nSV6xMK14a" role="3cqZAp">
-                <node concept="3cpWsn" id="2nSV6xMK14b" role="3cpWs9">
-                  <property role="TrG5h" value="result" />
-                  <node concept="10Oyi0" id="2nSV6xMK14c" role="1tU5fm" />
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-                      <node concept="liA8E" id="2nSV6xMK14j" role="2OqNvi">
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-                </node>
-              </node>
-              <node concept="3clFbF" id="2nSV6xMLBV_" role="3cqZAp">
-                <node concept="37vLTI" id="2nSV6xMLBVA" role="3clFbG">
-                  <node concept="37vLTw" id="2nSV6xMLBVB" role="37vLTJ">
-                    <ref role="3cqZAo" node="2nSV6xML_uN" resolve="result" />
-                  </node>
-                  <node concept="2OqwBi" id="2nSV6xMLBVC" role="37vLTx">
-                    <node concept="2OqwBi" id="2nSV6xMLBVD" role="2Oq$k0">
-                      <node concept="liA8E" id="2nSV6xMLBVE" role="2OqNvi">
-                        <ref role="37wK5l" node="2nSV6xMLKOn" resolve="getValue" />
-                      </node>
-                      <node concept="37vLTw" id="4xqUaW4wp3P" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4xqUaW4vkWE" resolve="a" />
-                      </node>
-                    </node>
-                    <node concept="liA8E" id="2nSV6xMLBVG" role="2OqNvi">
-                      <ref role="37wK5l" to="wyt6:~String.compareTo(java.lang.String)" resolve="compareTo" />
-                      <node concept="2OqwBi" id="2nSV6xMLBVH" role="37wK5m">
-                        <node concept="37vLTw" id="2nSV6xMLBVI" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2nSV6xML_uJ" resolve="b" />
-                        </node>
-                        <node concept="liA8E" id="2nSV6xMLBVJ" role="2OqNvi">
-                          <ref role="37wK5l" node="2nSV6xMLKOn" resolve="getValue" />
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                </node>
-                <node concept="raruj" id="2nSV6xMLFtr" role="lGtFl" />
-              </node>
-              <node concept="3cpWs6" id="2nSV6xML_v2" role="3cqZAp">
-                <node concept="37vLTw" id="2nSV6xML_v3" role="3cqZAk">
-                  <ref role="3cqZAo" node="2nSV6xML_uN" resolve="result" />
-                </node>
-              </node>
-            </node>
-            <node concept="10Oyi0" id="2nSV6xML_v4" role="3clF45" />
-            <node concept="3Tm1VV" id="2nSV6xML_v5" role="1B3o_S" />
-          </node>
-          <node concept="3Tm1VV" id="2nSV6xML_v6" role="1B3o_S" />
-          <node concept="3uibUv" id="2nSV6xML_v7" role="EKbjA">
-            <ref role="3uigEE" to="33ny:~Comparator" resolve="Comparator" />
-            <node concept="3uibUv" id="2nSV6xML_v8" role="11_B2D">
-              <ref role="3uigEE" node="2nSV6xML_uH" resolve="Foo" />
-            </node>
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="j$LIH" id="2nSV6xNcKJN" role="jxRDz">
-      <node concept="1lLz0L" id="2nSV6xNcKZX" role="1lHHLF">
-        <property role="1lMjX7" value="h1lM37o/error" />
-        <property role="1lLB17" value="Can't handle enum sort order" />
-      </node>
-    </node>
-  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/org.iets3.core.expr.genjava.toplevel.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/org.iets3.core.expr.genjava.toplevel.mpl
index de1b968fd8..ef6b9a7bef 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/org.iets3.core.expr.genjava.toplevel.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.toplevel/org.iets3.core.expr.genjava.toplevel.mpl
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <language namespace="org.iets3.core.expr.genjava.toplevel" uuid="ddeeec5e-aa31-4c44-bc40-319cd452626e" languageVersion="0" moduleVersion="0">
   <models>
-    <modelRoot contentPath="${module}" type="default">
+    <modelRoot type="default" contentPath="${module}">
       <sourceRoot location="models" />
     </modelRoot>
   </models>
@@ -43,7 +43,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -118,7 +118,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false" scope="generate-into">f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)</dependency>
     <dependency reexport="false" scope="generate-into">fd392034-7849-419d-9071-12563d152375(jetbrains.mps.baseLanguage.closures)</dependency>
@@ -130,7 +129,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -192,6 +191,7 @@
   </dependencyVersions>
   <runtime>
     <dependency reexport="false">52a8c4c0-f4b0-4243-bf00-9dfac3472876(org.iets3.core.expr.simpleTypes.runtime)</dependency>
+    <dependency reexport="false">336cc7f4-18d3-473b-81a1-d8df1c0ad27a(org.iets3.core.expr.genjava.toplevel.rt)</dependency>
   </runtime>
   <extendedLanguages />
 </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/generator/template/org.iets3.core.expr.genjava.util@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/generator/template/org.iets3.core.expr.genjava.util@generator.mps
index 5d0115d4c8..50d3f8b2d0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/generator/template/org.iets3.core.expr.genjava.util@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/generator/template/org.iets3.core.expr.genjava.util@generator.mps
@@ -79,7 +79,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -203,7 +203,7 @@
       <concept id="5005282049925926521" name="jetbrains.mps.lang.generator.structure.TemplateArgumentParameterExpression" flags="nn" index="v3LJS">
         <reference id="5005282049925926522" name="parameter" index="v3LJV" />
       </concept>
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
         <child id="1722980698497626405" name="actualArgument" index="v9R3O" />
       </concept>
@@ -237,7 +237,7 @@
       <concept id="1048903277984099198" name="jetbrains.mps.lang.generator.structure.VarMacro2" flags="lg" index="1ps_y7">
         <child id="1048903277984099213" name="variables" index="1ps_xO" />
       </concept>
-      <concept id="982871510064032177" name="jetbrains.mps.lang.generator.structure.IParameterizedTemplate" flags="ng" index="1s_3nv">
+      <concept id="982871510064032177" name="jetbrains.mps.lang.generator.structure.IParameterizedTemplate" flags="ngI" index="1s_3nv">
         <child id="982871510064032342" name="parameter" index="1s_3oS" />
       </concept>
       <concept id="982871510068000147" name="jetbrains.mps.lang.generator.structure.TemplateSwitchMacro" flags="lg" index="1sPUBX" />
@@ -265,6 +265,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -347,7 +348,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -371,7 +372,7 @@
       <concept id="4790956042241053102" name="org.iets3.core.expr.lambda.structure.ValExpression" flags="ng" index="1adJid">
         <child id="4790956042241053105" name="expr" index="1adJij" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
     </language>
@@ -394,7 +395,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566831861" name="jetbrains.mps.baseLanguage.collections.structure.AllOperation" flags="nn" index="2HxqBE" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -773,7 +773,7 @@
                                     <node concept="2OqwBi" id="4kfjPBKftU6" role="3clFbG">
                                       <node concept="2OqwBi" id="4kfjPBKftU7" role="2Oq$k0">
                                         <node concept="37vLTw" id="4kfjPBKftU8" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="4kfjPBKftUb" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX8179O" resolve="it" />
                                         </node>
                                         <node concept="3Tsc0h" id="4kfjPBKftU9" role="2OqNvi">
                                           <ref role="3TtcxE" to="kfo3:8XWEtdYkjo" resolve="exprs" />
@@ -783,9 +783,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="4kfjPBKftUb" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8179O" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="4kfjPBKftUc" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8179P" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -835,7 +835,7 @@
                                 <node concept="3clFbF" id="6hYPZtwti06" role="3cqZAp">
                                   <node concept="2OqwBi" id="6hYPZtwtig0" role="3clFbG">
                                     <node concept="37vLTw" id="6hYPZtwti05" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="6hYPZtwthNh" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8179Q" resolve="it" />
                                     </node>
                                     <node concept="1mIQ4w" id="6hYPZtwtiRx" role="2OqNvi">
                                       <node concept="chp4Y" id="6hYPZtwtj54" role="cj9EA">
@@ -845,9 +845,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="6hYPZtwthNh" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8179Q" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="6hYPZtwthNi" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8179R" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1079,7 +1079,7 @@
                                 <node concept="3clFbF" id="4FiaYBCEewC" role="3cqZAp">
                                   <node concept="2OqwBi" id="4FiaYBCEewD" role="3clFbG">
                                     <node concept="37vLTw" id="4FiaYBCEewE" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4FiaYBCEewH" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8179S" resolve="it" />
                                     </node>
                                     <node concept="1mIQ4w" id="4FiaYBCEewF" role="2OqNvi">
                                       <node concept="chp4Y" id="4FiaYBCEewG" role="cj9EA">
@@ -1089,9 +1089,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="4FiaYBCEewH" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8179S" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="4FiaYBCEewI" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8179T" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1265,7 +1265,7 @@
                                   <node concept="3clFbF" id="4FiaYBCECtI" role="3cqZAp">
                                     <node concept="2OqwBi" id="4FiaYBCECKf" role="3clFbG">
                                       <node concept="37vLTw" id="4FiaYBCECtH" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="4FiaYBCECbP" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX8179U" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="4FiaYBCEExE" role="2OqNvi">
                                         <ref role="37wK5l" to="wthy:3V7UZBYyZ4" resolve="isDefault" />
@@ -1273,9 +1273,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="4FiaYBCECbP" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX8179U" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="4FiaYBCECbQ" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX8179V" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -1309,7 +1309,7 @@
                                 <node concept="3clFbF" id="4FiaYBCF4cp" role="3cqZAp">
                                   <node concept="2OqwBi" id="4FiaYBCF4qz" role="3clFbG">
                                     <node concept="37vLTw" id="4FiaYBCF4co" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4FiaYBCF41G" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX8179W" resolve="it" />
                                     </node>
                                     <node concept="2qgKlT" id="4FiaYBCF5RH" role="2OqNvi">
                                       <ref role="37wK5l" to="wthy:3V7UZBYyZ4" resolve="isDefault" />
@@ -1317,9 +1317,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="4FiaYBCF41G" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX8179W" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="4FiaYBCF41H" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX8179X" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/editor.mps
index 46c01ae20f..dacc229409 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/editor.mps
@@ -41,7 +41,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/structure.mps
index 97414b1813..76c2b116d3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/models/structure.mps
@@ -37,7 +37,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/org.iets3.core.expr.genjava.util.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/org.iets3.core.expr.genjava.util.mpl
index ff90bf0d4a..b493370486 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/org.iets3.core.expr.genjava.util.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.util/org.iets3.core.expr.genjava.util.mpl
@@ -41,7 +41,7 @@
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -118,7 +118,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false" scope="generate-into">9464fa06-5ab9-409b-9274-64ab29588457(org.iets3.core.expr.lambda)</dependency>
@@ -127,7 +126,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/behavior.mps
index 20c172f1b3..555da01c0e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/behavior.mps
@@ -33,8 +33,8 @@
     <import index="w1kc" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.smodel(MPS.Core/)" />
     <import index="sxpq" ref="r:51edfe99-0380-475c-a3e9-1d4425eac12f(org.iets3.core.expr.lambda.plugin)" />
     <import index="webo" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing.text.html(JDK/)" />
-    <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
     <import index="mhfm" ref="3f233e7f-b8a6-46d2-a57f-795d56775243/java:org.jetbrains.annotations(Annotations/)" />
+    <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
   </imports>
   <registry>
     <language id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior">
@@ -68,7 +68,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -171,7 +171,7 @@
         <child id="1154542793668" name="componentType" index="3g7fb8" />
         <child id="1154542803372" name="initValue" index="3g7hyw" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -189,7 +189,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -210,6 +210,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -328,7 +329,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -391,7 +392,6 @@
         <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -1022,7 +1022,7 @@
                     <node concept="3clFbF" id="5L2mTKmAgKi" role="3cqZAp">
                       <node concept="2OqwBi" id="5L2mTKmAgXS" role="3clFbG">
                         <node concept="37vLTw" id="5L2mTKmAgKh" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5L2mTKmAgwO" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX8179Y" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="5L2mTKmAhfh" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:fIXgjlt4VE" resolve="isSameAs" />
@@ -1038,7 +1038,7 @@
                             <node concept="34jXtK" id="5L2mTKmAq8U" role="2OqNvi">
                               <node concept="2OqwBi" id="5L2mTKmAq_m" role="25WWJ7">
                                 <node concept="37vLTw" id="5L2mTKmAqoc" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5L2mTKmAgwO" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX8179Y" resolve="it" />
                                 </node>
                                 <node concept="2bSWHS" id="5L2mTKmAr2E" role="2OqNvi" />
                               </node>
@@ -1048,9 +1048,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5L2mTKmAgwO" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX8179Y" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5L2mTKmAgwP" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX8179Z" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1141,7 +1141,7 @@
                     <node concept="3clFbF" id="7S4tmubEVvT" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubEVIc" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubEVvS" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubEVmq" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817a0" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubEVWA" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
@@ -1149,9 +1149,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubEVmq" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817a0" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubEVmr" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817a1" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1583,7 +1583,7 @@
                           </node>
                           <node concept="3EllGN" id="dsAFRkcOWL" role="37vLTJ">
                             <node concept="37vLTw" id="dsAFRkcPhO" role="3ElVtu">
-                              <ref role="3cqZAo" node="49WTic8eCwS" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817a2" resolve="it" />
                             </node>
                             <node concept="37vLTw" id="dsAFRkcNEs" role="3ElQJh">
                               <ref role="3cqZAo" node="dsAFRk6ftq" resolve="mapping" />
@@ -1594,7 +1594,7 @@
                       <node concept="3clFbF" id="49WTic8eCyZ" role="3cqZAp">
                         <node concept="2OqwBi" id="49WTic8eCA1" role="3clFbG">
                           <node concept="37vLTw" id="49WTic8eCyY" role="2Oq$k0">
-                            <ref role="3cqZAo" node="49WTic8eCwS" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817a2" resolve="it" />
                           </node>
                           <node concept="1P9Npp" id="49WTic8eCFh" role="2OqNvi">
                             <node concept="37vLTw" id="dsAFRkcN1G" role="1P9ThW">
@@ -1608,7 +1608,7 @@
                       <node concept="2OqwBi" id="7cphKbKZSbM" role="3uHU7w">
                         <node concept="2OqwBi" id="7cphKbKZRrI" role="2Oq$k0">
                           <node concept="37vLTw" id="7cphKbKZR93" role="2Oq$k0">
-                            <ref role="3cqZAo" node="49WTic8eCwS" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817a2" resolve="it" />
                           </node>
                           <node concept="2Xjw5R" id="7cphKbKZRGP" role="2OqNvi">
                             <node concept="1xMEDy" id="7cphKbKZRGR" role="1xVPHs">
@@ -1626,7 +1626,7 @@
                         </node>
                         <node concept="2OqwBi" id="6ITtBskTCMh" role="3uHU7B">
                           <node concept="37vLTw" id="6ITtBskTCAp" role="2Oq$k0">
-                            <ref role="3cqZAo" node="49WTic8eCwS" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817a2" resolve="it" />
                           </node>
                           <node concept="2Xjw5R" id="6ITtBskTDpX" role="2OqNvi">
                             <node concept="1xMEDy" id="6ITtBskTDpZ" role="1xVPHs">
@@ -1640,9 +1640,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="49WTic8eCwS" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817a2" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="49WTic8eCwT" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817a3" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1942,7 +1942,7 @@
                   <node concept="3clFbF" id="RIvadv2Ivk" role="3cqZAp">
                     <node concept="2OqwBi" id="RIvadv2IDr" role="3clFbG">
                       <node concept="37vLTw" id="RIvadv2Ivj" role="2Oq$k0">
-                        <ref role="3cqZAo" node="RIvadv2InN" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817a4" resolve="it" />
                       </node>
                       <node concept="3TrEf2" id="RIvadv2IRA" role="2OqNvi">
                         <ref role="3Tt5mk" to="zzzn:49WTic8gvyC" resolve="function" />
@@ -1950,9 +1950,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="RIvadv2InN" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817a4" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="RIvadv2InO" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817a5" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2173,7 +2173,7 @@
                               <node concept="2OqwBi" id="3E_uh2jovMZ" role="3uHU7w">
                                 <node concept="2OqwBi" id="3E_uh2jouHE" role="2Oq$k0">
                                   <node concept="37vLTw" id="3E_uh2joufI" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3E_uh2joqjK" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817a6" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="3E_uh2jovym" role="2OqNvi">
                                     <ref role="3Tt5mk" to="zzzn:6zmBjqUkwsc" resolve="type" />
@@ -2186,7 +2186,7 @@
                               <node concept="3cpWs3" id="3E_uh2josO4" role="3uHU7B">
                                 <node concept="2OqwBi" id="3E_uh2joqIQ" role="3uHU7B">
                                   <node concept="37vLTw" id="3E_uh2joqk5" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3E_uh2joqjK" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817a6" resolve="it" />
                                   </node>
                                   <node concept="3TrcHB" id="3E_uh2jornx" role="2OqNvi">
                                     <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2199,9 +2199,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="3E_uh2joqjK" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817a6" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="3E_uh2joqjL" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817a7" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2257,7 +2257,7 @@
                                 <node concept="3clFbF" id="4zsmO3KQbN9" role="3cqZAp">
                                   <node concept="2OqwBi" id="4zsmO3KQcfn" role="3clFbG">
                                     <node concept="37vLTw" id="4zsmO3KQbN8" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4zsmO3KQbtB" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817a8" resolve="it" />
                                     </node>
                                     <node concept="2qgKlT" id="4zsmO3KQnAi" role="2OqNvi">
                                       <ref role="37wK5l" to="hwgx:7NyyyjNtbn2" resolve="getTreeNode" />
@@ -2268,9 +2268,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="4zsmO3KQbtB" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817a8" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="4zsmO3KQbtC" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817a9" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -2551,7 +2551,7 @@
                       <node concept="3fqX7Q" id="5YygIlaVSU_" role="3uHU7w">
                         <node concept="2OqwBi" id="5YygIlaVTih" role="3fr31v">
                           <node concept="37vLTw" id="5YygIlaVT4Q" role="2Oq$k0">
-                            <ref role="3cqZAo" node="18$bUx58eYL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817aa" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="5YygIlaVTEh" role="2OqNvi">
                             <node concept="chp4Y" id="5YygIlaVTSf" role="cj9EA">
@@ -2563,7 +2563,7 @@
                       <node concept="3fqX7Q" id="18$bUx58f5p" role="3uHU7B">
                         <node concept="2OqwBi" id="18$bUx58fil" role="3fr31v">
                           <node concept="37vLTw" id="18$bUx58f8f" role="2Oq$k0">
-                            <ref role="3cqZAo" node="18$bUx58eYL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817aa" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="18$bUx58fzB" role="2OqNvi">
                             <node concept="chp4Y" id="18$bUx58fIN" role="cj9EA">
@@ -2575,9 +2575,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="18$bUx58eYL" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817aa" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="18$bUx58eYM" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ab" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2871,7 +2871,7 @@
                     <node concept="3fqX7Q" id="44yGPKlmayZ" role="3clFbG">
                       <node concept="2OqwBi" id="44yGPKlmaVo" role="3fr31v">
                         <node concept="37vLTw" id="44yGPKlmaz6" role="2Oq$k0">
-                          <ref role="3cqZAo" node="44yGPKlmajI" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ac" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="44yGPKlmbxr" role="2OqNvi">
                           <node concept="chp4Y" id="44yGPKlmbNh" role="cj9EA">
@@ -2882,9 +2882,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="44yGPKlmajI" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ac" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="44yGPKlmajJ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ad" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3383,9 +3383,7 @@
       </node>
       <node concept="37vLTG" id="ZYPG76BgMI" role="3clF46">
         <property role="TrG5h" value="expectedType" />
-        <node concept="3Tqbb2" id="ZYPG76BgMJ" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76BgMJ" role="1tU5fm" />
       </node>
       <node concept="37vLTG" id="ZYPG76BgMK" role="3clF46">
         <property role="TrG5h" value="actualType" />
@@ -3621,7 +3619,7 @@
                           <node concept="3clFbF" id="6o_i6GxnZcf" role="3cqZAp">
                             <node concept="2OqwBi" id="6o_i6GxnZcg" role="3clFbG">
                               <node concept="37vLTw" id="6o_i6GxnZch" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6o_i6GxnZck" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817ae" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="6o_i6GxnZci" role="2OqNvi">
                                 <node concept="chp4Y" id="6o_i6GxnZcj" role="cj9EA">
@@ -3631,9 +3629,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="6o_i6GxnZck" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817ae" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="6o_i6GxnZcl" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817af" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -3644,7 +3642,7 @@
                         <node concept="3clFbF" id="6o_i6GxnZcp" role="3cqZAp">
                           <node concept="2OqwBi" id="6o_i6GxnZcq" role="3clFbG">
                             <node concept="37vLTw" id="6o_i6GxnZcr" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6o_i6GxnZct" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ag" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="6o_i6GxnZcs" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -3652,9 +3650,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="6o_i6GxnZct" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817ag" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6o_i6GxnZcu" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817ah" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3871,7 +3869,7 @@
                               <node concept="3clFbF" id="74u6qanU7x2" role="3cqZAp">
                                 <node concept="2OqwBi" id="74u6qanU7MJ" role="3clFbG">
                                   <node concept="37vLTw" id="74u6qanU7x1" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="74u6qanU7d5" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817ai" resolve="it" />
                                   </node>
                                   <node concept="1mIQ4w" id="74u6qanU8kC" role="2OqNvi">
                                     <node concept="chp4Y" id="74u6qanU8Fd" role="cj9EA">
@@ -3881,9 +3879,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="74u6qanU7d5" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817ai" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="74u6qanU7d6" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817aj" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -3896,7 +3894,7 @@
                                 <ref role="37wK5l" to="pbu6:1xFBUnx0h1Q" resolve="extractValuesFromExpression" />
                                 <node concept="2OqwBi" id="74u6qanUbPk" role="37wK5m">
                                   <node concept="37vLTw" id="74u6qanUbkN" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="74u6qanUabH" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817ak" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="74u6qanUc89" role="2OqNvi">
                                     <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -3905,9 +3903,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="74u6qanUabH" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817ak" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="74u6qanUabI" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817al" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -4365,7 +4363,7 @@
                     <node concept="3clFbF" id="7S4tmubEBqN" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubEBD6" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubEBqM" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubEBhx" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817am" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubEBRg" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
@@ -4373,9 +4371,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubEBhx" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817am" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubEBhy" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817an" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4884,7 +4882,7 @@
                     <node concept="2OqwBi" id="6NpHfQ5HXCa" role="3clFbG">
                       <node concept="2OqwBi" id="6NpHfQ5HU2y" role="2Oq$k0">
                         <node concept="37vLTw" id="6NpHfQ5HTOn" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6NpHfQ5HTKh" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ao" resolve="it" />
                         </node>
                         <node concept="1mfA1w" id="6NpHfQ5HUiy" role="2OqNvi" />
                       </node>
@@ -4896,9 +4894,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6NpHfQ5HTKh" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ao" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6NpHfQ5HTKi" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ap" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4942,7 +4940,7 @@
                       <node concept="2OqwBi" id="6NpHfQ5I9oM" role="3fr31v">
                         <node concept="2OqwBi" id="6NpHfQ5I9oN" role="2Oq$k0">
                           <node concept="37vLTw" id="6NpHfQ5I9oO" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6NpHfQ5I7BU" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817aq" resolve="it" />
                           </node>
                           <node concept="1mfA1w" id="6NpHfQ5I9oP" role="2OqNvi" />
                         </node>
@@ -4955,9 +4953,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6NpHfQ5I7BU" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817aq" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6NpHfQ5I7BV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ar" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -5260,7 +5258,7 @@
                     <node concept="3clFbF" id="7S4tmubEJUp" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubEK6B" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubEJUo" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubEJN0" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817as" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubEKkQ" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
@@ -5268,9 +5266,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubEJN0" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817as" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubEJN1" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817at" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -5663,15 +5661,11 @@
       </node>
       <node concept="37vLTG" id="ZYPG76Nzqw" role="3clF46">
         <property role="TrG5h" value="expectedType" />
-        <node concept="3Tqbb2" id="ZYPG76Nzqx" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76Nzqx" role="1tU5fm" />
       </node>
       <node concept="37vLTG" id="ZYPG76Nzqy" role="3clF46">
         <property role="TrG5h" value="actualType" />
-        <node concept="3Tqbb2" id="ZYPG76Nzqz" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76Nzqz" role="1tU5fm" />
       </node>
       <node concept="17QB3L" id="ZYPG76Nzq$" role="3clF45" />
     </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/constraints.mps
index 4f7df44b6e..0477bac10f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/constraints.mps
@@ -81,7 +81,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -119,6 +119,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -178,7 +179,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -204,7 +205,6 @@
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
     </language>
   </registry>
@@ -369,7 +369,7 @@
                     <node concept="3clFbF" id="6b_jefnKy$L" role="3cqZAp">
                       <node concept="2OqwBi" id="6b_jefnKy$M" role="3clFbG">
                         <node concept="37vLTw" id="6b_jefnKy$N" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6b_jefnKy$Q" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817au" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="6b_jefnKy$O" role="2OqNvi">
                           <node concept="chp4Y" id="6b_jefnKy$P" role="cj9EA">
@@ -379,9 +379,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6b_jefnKy$Q" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817au" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6b_jefnKy$R" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817av" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -733,7 +733,7 @@
                                 <node concept="2OqwBi" id="4U5vykej9IO" role="3clFbG">
                                   <node concept="2OqwBi" id="4U5vykej9IP" role="2Oq$k0">
                                     <node concept="37vLTw" id="4U5vykej9IQ" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4U5vykej9IU" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817aw" resolve="it" />
                                     </node>
                                     <node concept="3Tsc0h" id="4U5vykej9IR" role="2OqNvi">
                                       <ref role="3TtcxE" to="zzzn:49WTic8ig5E" resolve="expressions" />
@@ -747,9 +747,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="4U5vykej9IU" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817aw" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="4U5vykej9IV" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817ax" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -967,7 +967,7 @@
                         <node concept="2OqwBi" id="1VmWkC0H$gv" role="3clFbG">
                           <node concept="2OqwBi" id="1VmWkC0HwZj" role="2Oq$k0">
                             <node concept="37vLTw" id="1VmWkC0Hw$V" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1VmWkC0Hwq0" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ay" resolve="it" />
                             </node>
                             <node concept="3Tsc0h" id="1VmWkC0HxR8" role="2OqNvi">
                               <ref role="3TtcxE" to="zzzn:49WTic8ig5E" resolve="expressions" />
@@ -981,9 +981,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1VmWkC0Hwq0" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817ay" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1VmWkC0Hwq1" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817az" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/editor.mps
index ad2f7550df..16273dd5b0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/editor.mps
@@ -112,10 +112,10 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -144,14 +144,14 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
       <concept id="7597241200646296619" name="jetbrains.mps.lang.editor.structure.QueryFunction_SNode" flags="in" index="3k4GqP" />
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -177,7 +177,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -189,7 +189,7 @@
       <concept id="1225900081164" name="jetbrains.mps.lang.editor.structure.CellModel_ReadOnlyModelAccessor" flags="sg" stub="3708815482283559694" index="1HlG4h">
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="5624877018228264944" name="jetbrains.mps.lang.editor.structure.TransformationMenuContribution" flags="ng" index="3INDKC">
@@ -269,7 +269,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -289,7 +289,7 @@
         <child id="8945098465480008160" name="transformationText" index="ZWbT9" />
       </concept>
       <concept id="8945098465480383073" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell_TransformationText" flags="ig" index="ZYGn8" />
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -345,7 +345,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/intentions.mps
index f930a93cf3..0df0c14137 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/intentions.mps
@@ -64,7 +64,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -80,6 +80,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -168,7 +169,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -178,7 +179,6 @@
       </concept>
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -332,7 +332,7 @@
                         </node>
                         <node concept="2OqwBi" id="8xLOUtasQp" role="3uHU7B">
                           <node concept="37vLTw" id="8xLOUtasGn" role="2Oq$k0">
-                            <ref role="3cqZAo" node="8xLOUtaswo" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817a$" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="8xLOUtat2K" role="2OqNvi">
                             <ref role="3Tt5mk" to="zzzn:6zmBjqUkHam" resolve="arg" />
@@ -341,9 +341,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="8xLOUtaswo" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817a$" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="8xLOUtaswp" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817a_" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -354,7 +354,7 @@
                   <node concept="3clFbF" id="49WTic8eOGk" role="3cqZAp">
                     <node concept="2OqwBi" id="49WTic8eOJm" role="3clFbG">
                       <node concept="37vLTw" id="49WTic8eOGj" role="2Oq$k0">
-                        <ref role="3cqZAo" node="49WTic8eOEL" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817aA" resolve="it" />
                       </node>
                       <node concept="1P9Npp" id="49WTic8eOP2" role="2OqNvi">
                         <node concept="2pJPEk" id="49WTic8eOYX" role="1P9ThW">
@@ -366,9 +366,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="49WTic8eOEL" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817aA" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="49WTic8eOEM" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817aB" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -442,7 +442,7 @@
                           <node concept="2OqwBi" id="4hUtPTIY8QT" role="2Oq$k0">
                             <node concept="2OqwBi" id="4hUtPTIY8QU" role="2Oq$k0">
                               <node concept="37vLTw" id="4hUtPTIY8QV" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4hUtPTIY8Rf" resolve="shortLambda" />
+                                <ref role="3cqZAo" node="4z0AnX817aE" resolve="shortLambda" />
                               </node>
                               <node concept="2Rf3mk" id="4hUtPTIY8QW" role="2OqNvi">
                                 <node concept="1xMEDy" id="4hUtPTIY8QX" role="1xVPHs">
@@ -468,7 +468,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="4hUtPTIY8R9" role="3uHU7B">
                                         <node concept="37vLTw" id="4hUtPTIY8Ra" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="4hUtPTIY8Rc" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817aC" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="4hUtPTIY8Rb" role="2OqNvi">
                                           <ref role="3Tt5mk" to="zzzn:6zmBjqUkHam" resolve="arg" />
@@ -477,9 +477,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="4hUtPTIY8Rc" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817aC" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="4hUtPTIY8Rd" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817aD" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -488,9 +488,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4hUtPTIY8Rf" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817aE" role="1bW2Oz">
                       <property role="TrG5h" value="shortLambda" />
-                      <node concept="2jxLKc" id="4hUtPTIY8Rg" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817aF" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/migration.mps
index 6a63085386..aafe94ed3d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/migration.mps
@@ -34,7 +34,7 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -85,7 +85,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/plugin.mps
index 07e44ee540..309fb2e962 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:51edfe99-0380-475c-a3e9-1d4425eac12f(org.iets3.core.expr.lambda.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="-1" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
@@ -36,7 +36,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -126,7 +126,7 @@
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -143,7 +143,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -158,6 +158,7 @@
       <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -226,7 +227,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -260,7 +261,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -487,23 +487,23 @@
                   <node concept="1xIGOp" id="22hm_0zVJgu" role="1xVPHs" />
                 </node>
               </node>
-              <node concept="3zZkjj" id="22hm_0zJCvu" role="2OqNvi">
-                <node concept="1bVj0M" id="22hm_0zJCvv" role="23t8la">
-                  <node concept="3clFbS" id="22hm_0zJCvw" role="1bW5cS">
-                    <node concept="3clFbF" id="22hm_0zJCvx" role="3cqZAp">
-                      <node concept="2OqwBi" id="22hm_0zJCvy" role="3clFbG">
-                        <node concept="37vLTw" id="22hm_0zJCvz" role="2Oq$k0">
-                          <ref role="3cqZAo" node="22hm_0zJCv_" resolve="it" />
-                        </node>
-                        <node concept="2qgKlT" id="22hm_0zJCv$" role="2OqNvi">
+              <node concept="3zZkjj" id="1xunj8ajZqh" role="2OqNvi">
+                <node concept="1bVj0M" id="1xunj8ajZqj" role="23t8la">
+                  <node concept="3clFbS" id="1xunj8ajZqk" role="1bW5cS">
+                    <node concept="3clFbF" id="1xunj8ak0Ie" role="3cqZAp">
+                      <node concept="2OqwBi" id="1xunj8ak2EZ" role="3clFbG">
+                        <node concept="2qgKlT" id="1xunj8ak45k" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:22hm_0zJBUZ" resolve="targetStateIsMutable" />
                         </node>
+                        <node concept="37vLTw" id="1xunj8ak0Id" role="2Oq$k0">
+                          <ref role="3cqZAo" node="1xunj8ajZql" resolve="it" />
+                        </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="22hm_0zJCv_" role="1bW2Oz">
+                  <node concept="gl6BB" id="1xunj8ajZql" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="22hm_0zJCvA" role="1tU5fm" />
+                    <node concept="2jxLKc" id="1xunj8ajZqm" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1071,11 +1071,11 @@
                           <node concept="3clFbS" id="dsAFRk6CI7" role="1bW5cS">
                             <node concept="3clFbJ" id="dsAFRk6Dl3" role="3cqZAp">
                               <node concept="2YIFZM" id="dsAFRk6Epl" role="3clFbw">
-                                <ref role="37wK5l" to="pbu6:1WlYLwX3McV" resolve="isNodeCovered" />
-                                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                                <ref role="37wK5l" to="pbu6:7LZDtvhyLWZ" resolve="isNodeCovered" />
+                                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                                 <node concept="2OqwBi" id="dsAFRk6FhD" role="37wK5m">
                                   <node concept="37vLTw" id="dsAFRk6ESX" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="dsAFRk6CI8" resolve="mapping" />
+                                    <ref role="3cqZAo" node="1xunj8akv$b" resolve="mapping" />
                                   </node>
                                   <node concept="3AV6Ez" id="dsAFRka_Qp" role="2OqNvi" />
                                 </node>
@@ -1090,7 +1090,7 @@
                                       <ref role="37wK5l" to="2ahs:RaqQlV4lZg" resolve="coverValue" />
                                       <node concept="2OqwBi" id="dsAFRk6ImD" role="37wK5m">
                                         <node concept="37vLTw" id="dsAFRk6I05" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="dsAFRk6CI8" resolve="mapping" />
+                                          <ref role="3cqZAo" node="1xunj8akv$b" resolve="mapping" />
                                         </node>
                                         <node concept="3AY5_j" id="dsAFRkaAEM" role="2OqNvi" />
                                       </node>
@@ -1101,9 +1101,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="dsAFRk6CI8" role="1bW2Oz">
+                          <node concept="gl6BB" id="1xunj8akv$b" role="1bW2Oz">
                             <property role="TrG5h" value="mapping" />
-                            <node concept="2jxLKc" id="dsAFRk6CI9" role="1tU5fm" />
+                            <node concept="2jxLKc" id="1xunj8akv$c" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1126,11 +1126,11 @@
                               <node concept="3clFbF" id="dsAFRk2nFu" role="3cqZAp">
                                 <node concept="3clFbC" id="dsAFRk2r8w" role="3clFbG">
                                   <node concept="37vLTw" id="dsAFRk2spL" role="3uHU7w">
-                                    <ref role="3cqZAo" node="dsAFRk19br" resolve="descendant" />
+                                    <ref role="3cqZAo" node="1xunj8akv$9" resolve="descendant" />
                                   </node>
                                   <node concept="3EllGN" id="dsAFRk2q08" role="3uHU7B">
                                     <node concept="37vLTw" id="dsAFRk2qrp" role="3ElVtu">
-                                      <ref role="3cqZAo" node="dsAFRk2nau" resolve="key" />
+                                      <ref role="3cqZAo" node="1xunj8akv$5" resolve="key" />
                                     </node>
                                     <node concept="37vLTw" id="dsAFRk2p1B" role="3ElQJh">
                                       <ref role="3cqZAo" node="dsAFRk0GB0" resolve="mapping" />
@@ -1139,9 +1139,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="dsAFRk2nau" role="1bW2Oz">
+                            <node concept="gl6BB" id="1xunj8akv$5" role="1bW2Oz">
                               <property role="TrG5h" value="key" />
-                              <node concept="2jxLKc" id="dsAFRk2nav" role="1tU5fm" />
+                              <node concept="2jxLKc" id="1xunj8akv$6" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -1166,17 +1166,17 @@
                       </node>
                     </node>
                     <node concept="2YIFZM" id="230vOq3ig5I" role="3clFbw">
-                      <ref role="37wK5l" to="pbu6:1WlYLwX3McV" resolve="isNodeCovered" />
-                      <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                      <ref role="37wK5l" to="pbu6:7LZDtvhyLWZ" resolve="isNodeCovered" />
+                      <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                       <node concept="37vLTw" id="230vOq3ig5J" role="37wK5m">
-                        <ref role="3cqZAo" node="dsAFRk19br" resolve="descendant" />
+                        <ref role="3cqZAo" node="1xunj8akv$9" resolve="descendant" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="dsAFRk19br" role="1bW2Oz">
+                <node concept="gl6BB" id="1xunj8akv$9" role="1bW2Oz">
                   <property role="TrG5h" value="descendant" />
-                  <node concept="2jxLKc" id="dsAFRk19bs" role="1tU5fm" />
+                  <node concept="2jxLKc" id="1xunj8akv$a" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1996,7 +1996,7 @@
                           <node concept="liA8E" id="$yb$20ldT9" role="2OqNvi">
                             <ref role="37wK5l" to="2ahs:2X4$XGmegKw" resolve="evaluate" />
                             <node concept="37vLTw" id="$yb$20ldTa" role="37wK5m">
-                              <ref role="3cqZAo" node="$yb$20ldTc" resolve="it" />
+                              <ref role="3cqZAo" node="1xunj8akv$7" resolve="it" />
                             </node>
                             <node concept="37vLTw" id="$yb$20ldTb" role="37wK5m">
                               <ref role="3cqZAo" node="$yb$20laHc" resolve="context" />
@@ -2012,9 +2012,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="$yb$20ldTc" role="1bW2Oz">
+                    <node concept="gl6BB" id="1xunj8akv$7" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="$yb$20ldTd" role="1tU5fm" />
+                      <node concept="2jxLKc" id="1xunj8akv$8" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/refactorings.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/refactorings.mps
index 4f507fa410..5df04635a2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/refactorings.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/refactorings.mps
@@ -31,7 +31,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -63,7 +63,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/structure.mps
index 39e723bc72..5bf787e8b1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/structure.mps
@@ -2,8 +2,8 @@
 <model ref="r:af0af2e7-f7e1-4536-83b5-6bf010d4afd2(org.iets3.core.expr.lambda.structure)">
   <persistence version="9" />
   <languages>
-    <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="2" />
-    <use id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure" version="9" />
+    <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="-1" />
+    <use id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure" version="-1" />
     <devkit ref="78434eb8-b0e5-444b-850d-e7c4ad2da9ab(jetbrains.mps.devkit.aspect.structure)" />
   </languages>
   <imports>
@@ -67,7 +67,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/typesystem.mps
index e4343768dc..48c38b7d14 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/models/typesystem.mps
@@ -103,7 +103,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -131,6 +131,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -278,7 +279,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -312,7 +313,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
       <concept id="1227026082377" name="jetbrains.mps.baseLanguage.collections.structure.RemoveFirstElementOperation" flags="nn" index="2Kt2Hk" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -1398,7 +1398,7 @@
                           <node concept="2OqwBi" id="49WTic8hsct" role="25WWJ7">
                             <node concept="2OqwBi" id="49WTic8htyS" role="2Oq$k0">
                               <node concept="37vLTw" id="49WTic8hs25" role="2Oq$k0">
-                                <ref role="3cqZAo" node="49WTic8hqof" resolve="it" />
+                                <ref role="3cqZAo" node="EsIH9l3Td3" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="49WTic8htKR" role="2OqNvi">
                                 <ref role="3Tt5mk" to="zzzn:6zmBjqUkwsc" resolve="type" />
@@ -1410,9 +1410,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="49WTic8hqof" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l3Td3" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="49WTic8hqog" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l3Td4" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1892,9 +1892,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2rOWEwsAJEe" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l3Td5" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2rOWEwsAJEf" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l3Td6" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2011,7 +2011,7 @@
                         <node concept="2OqwBi" id="KaZMgydRvC" role="3clFbG">
                           <node concept="2OqwBi" id="KaZMgydRvD" role="2Oq$k0">
                             <node concept="37vLTw" id="KaZMgydRvE" role="2Oq$k0">
-                              <ref role="3cqZAo" node="KaZMgydRvU" resolve="e" />
+                              <ref role="3cqZAo" node="EsIH9l3Td9" resolve="e" />
                             </node>
                             <node concept="2Rf3mk" id="KaZMgydRvF" role="2OqNvi">
                               <node concept="1xMEDy" id="KaZMgydRvG" role="1xVPHs">
@@ -2032,7 +2032,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="KaZMgydRvP" role="3uHU7B">
                                       <node concept="37vLTw" id="KaZMgydRvQ" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="KaZMgydRvS" resolve="it" />
+                                        <ref role="3cqZAo" node="EsIH9l3Td7" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="KaZMgydRvR" role="2OqNvi">
                                         <ref role="3Tt5mk" to="zzzn:49WTic8iI9_" resolve="val" />
@@ -2041,18 +2041,18 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="KaZMgydRvS" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l3Td7" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="KaZMgydRvT" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l3Td8" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="KaZMgydRvU" role="1bW2Oz">
+                    <node concept="gl6BB" id="EsIH9l3Td9" role="1bW2Oz">
                       <property role="TrG5h" value="e" />
-                      <node concept="2jxLKc" id="KaZMgydRvV" role="1tU5fm" />
+                      <node concept="2jxLKc" id="EsIH9l3Tda" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2128,7 +2128,7 @@
                         <node concept="3clFbF" id="5ipapt3xRG4" role="3cqZAp">
                           <node concept="2OqwBi" id="5ipapt3xRG5" role="3clFbG">
                             <node concept="37vLTw" id="5ipapt3xRG6" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5ipapt3xRGa" resolve="it" />
+                              <ref role="3cqZAo" node="EsIH9l3Tdb" resolve="it" />
                             </node>
                             <node concept="2Rf3mk" id="5ipapt3xRG7" role="2OqNvi">
                               <node concept="1xMEDy" id="5ipapt3xRG8" role="1xVPHs">
@@ -2141,9 +2141,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5ipapt3xRGa" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l3Tdb" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5ipapt3xRGb" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l3Tdc" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2158,7 +2158,7 @@
                           </node>
                           <node concept="2OqwBi" id="5ipapt3xRGi" role="3uHU7B">
                             <node concept="37vLTw" id="5ipapt3xRGj" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5ipapt3xRGl" resolve="it" />
+                              <ref role="3cqZAo" node="EsIH9l3Tdd" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="5ipapt3xRGk" role="2OqNvi">
                               <ref role="3Tt5mk" to="zzzn:49WTic8iI9_" resolve="val" />
@@ -2167,9 +2167,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5ipapt3xRGl" role="1bW2Oz">
+                    <node concept="gl6BB" id="EsIH9l3Tdd" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5ipapt3xRGm" role="1tU5fm" />
+                      <node concept="2jxLKc" id="EsIH9l3Tde" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2757,7 +2757,7 @@
                         <node concept="2OqwBi" id="RIvadv3fFu" role="3uHU7B">
                           <node concept="1PxgMI" id="RIvadv3fhj" role="2Oq$k0">
                             <node concept="37vLTw" id="RIvadv3eDk" role="1m5AlR">
-                              <ref role="3cqZAo" node="RIvadv3e$o" resolve="it" />
+                              <ref role="3cqZAo" node="EsIH9l3Tdf" resolve="it" />
                             </node>
                             <node concept="chp4Y" id="6b_jefnKyD8" role="3oSUPX">
                               <ref role="cht4Q" to="zzzn:49WTic8eSCJ" resolve="IFunctionLike" />
@@ -2770,9 +2770,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="RIvadv3e$o" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l3Tdf" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="RIvadv3e$p" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l3Tdg" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2791,7 +2791,7 @@
                             <node concept="3clFbF" id="3eH6BL49yv$" role="3cqZAp">
                               <node concept="2OqwBi" id="3eH6BL49yTB" role="3clFbG">
                                 <node concept="37vLTw" id="3eH6BL49yvz" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3eH6BL49yqA" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3Tdh" resolve="it" />
                                 </node>
                                 <node concept="3TrcHB" id="3eH6BL49zo$" role="2OqNvi">
                                   <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2799,9 +2799,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="3eH6BL49yqA" role="1bW2Oz">
+                          <node concept="gl6BB" id="EsIH9l3Tdh" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="3eH6BL49yqB" role="1tU5fm" />
+                            <node concept="2jxLKc" id="EsIH9l3Tdi" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -3689,7 +3689,7 @@
                     <node concept="2OqwBi" id="1VmWkC0ESWh" role="3clFbG">
                       <node concept="2OqwBi" id="1VmWkC0EQcI" role="2Oq$k0">
                         <node concept="37vLTw" id="1VmWkC0EPMu" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1VmWkC0EPDb" resolve="it" />
+                          <ref role="3cqZAo" node="EsIH9l3Tdj" resolve="it" />
                         </node>
                         <node concept="3Tsc0h" id="1VmWkC0EQFg" role="2OqNvi">
                           <ref role="3TtcxE" to="zzzn:49WTic8ig5E" resolve="expressions" />
@@ -3703,9 +3703,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1VmWkC0EPDb" role="1bW2Oz">
+                <node concept="gl6BB" id="EsIH9l3Tdj" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1VmWkC0EPDc" role="1tU5fm" />
+                  <node concept="2jxLKc" id="EsIH9l3Tdk" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3725,7 +3725,7 @@
                     </node>
                     <node concept="2OqwBi" id="1VmWkC0EXwZ" role="3uHU7B">
                       <node concept="37vLTw" id="1VmWkC0EX8P" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1VmWkC0EWZY" resolve="it" />
+                        <ref role="3cqZAo" node="EsIH9l3Tdl" resolve="it" />
                       </node>
                       <node concept="3TrcHB" id="1VmWkC0EY35" role="2OqNvi">
                         <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3734,9 +3734,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="1VmWkC0EWZY" role="1bW2Oz">
+              <node concept="gl6BB" id="EsIH9l3Tdl" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="1VmWkC0EWZZ" role="1tU5fm" />
+                <node concept="2jxLKc" id="EsIH9l3Tdm" role="1tU5fm" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/org.iets3.core.expr.lambda.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/org.iets3.core.expr.lambda.mpl
index b139ee2181..d3fd1d9168 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/org.iets3.core.expr.lambda.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lambda/org.iets3.core.expr.lambda.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -40,7 +39,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -68,7 +67,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/behavior.mps
index f3b2350f24..3ad209602c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/behavior.mps
@@ -97,7 +97,7 @@
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -107,7 +107,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1208890769693" name="jetbrains.mps.baseLanguage.structure.ArrayLengthOperation" flags="nn" index="1Rwk04" />
@@ -135,7 +135,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/constraints.mps
index c18960e83d..fc605e4d18 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/constraints.mps
@@ -27,7 +27,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/editor.mps
index 29183f51fe..cb43a9b786 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/editor.mps
@@ -46,7 +46,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1088185857835" name="jetbrains.mps.lang.editor.structure.InlineEditorComponent" flags="ig" index="1sVBvm" />
@@ -65,7 +65,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -147,7 +147,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -171,6 +171,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -181,7 +182,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
     </language>
@@ -254,7 +255,7 @@
         <child id="8155811638124638371" name="childHeaders" index="18hjfq" />
       </concept>
       <concept id="4032373061970539014" name="de.slisson.mps.tables.structure.QueryParameter_EditorContext" flags="ng" index="1frAZD" />
-      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ng" index="1g0I81">
+      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ngI" index="1g0I81">
         <child id="5662204344887343006" name="style" index="1geGt4" />
       </concept>
       <concept id="5662204344885763446" name="de.slisson.mps.tables.structure.TableStyle" flags="ng" index="1g0IQG" />
@@ -288,7 +289,7 @@
       <concept id="1228341669568" name="jetbrains.mps.lang.smodel.structure.Node_DetachOperation" flags="nn" index="3YRAZt" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -316,7 +317,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -457,7 +457,7 @@
                                   <node concept="3clFbC" id="55lPkJGJtsP" role="3uHU7w">
                                     <node concept="2OqwBi" id="55lPkJGJoY1" role="3uHU7B">
                                       <node concept="37vLTw" id="55lPkJGJohH" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="55lPkJGJ5YX" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817bc" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="55lPkJGJpFY" role="2OqNvi">
                                         <ref role="3Tt5mk" to="8qwc:55lPkJGINbs" resolve="col" />
@@ -470,7 +470,7 @@
                                   <node concept="3clFbC" id="55lPkJGJseZ" role="3uHU7B">
                                     <node concept="2OqwBi" id="55lPkJGJ6tk" role="3uHU7B">
                                       <node concept="37vLTw" id="55lPkJGJ6gy" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="55lPkJGJ5YX" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817bc" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="55lPkJGJ6Py" role="2OqNvi">
                                         <ref role="3Tt5mk" to="8qwc:55lPkJGINbj" resolve="row" />
@@ -483,9 +483,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="55lPkJGJ5YX" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817bc" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="55lPkJGJ5YY" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817bd" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -559,7 +559,7 @@
                                         <node concept="17R0WA" id="5yPljRY4Koc" role="3uHU7B">
                                           <node concept="2OqwBi" id="5yPljRY4Kod" role="3uHU7B">
                                             <node concept="37vLTw" id="5yPljRY4Koe" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="5yPljRY4Kom" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817be" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="5yPljRY4Kof" role="2OqNvi">
                                               <ref role="3Tt5mk" to="8qwc:55lPkJGINbj" resolve="row" />
@@ -575,7 +575,7 @@
                                           </node>
                                           <node concept="2OqwBi" id="5yPljRY4Koj" role="3uHU7B">
                                             <node concept="37vLTw" id="5yPljRY4Kok" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="5yPljRY4Kom" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817be" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="5yPljRY4Kol" role="2OqNvi">
                                               <ref role="3Tt5mk" to="8qwc:55lPkJGINbs" resolve="col" />
@@ -585,9 +585,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="5yPljRY4Kom" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817be" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="5yPljRY4Kon" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817bf" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -830,7 +830,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="55lPkJGL2wI" role="3uHU7B">
                                       <node concept="37vLTw" id="55lPkJGL2j8" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="55lPkJGL25u" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817bg" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="55lPkJGL2QE" role="2OqNvi">
                                         <ref role="3Tt5mk" to="8qwc:55lPkJGINbj" resolve="row" />
@@ -839,9 +839,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="55lPkJGL25u" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817bg" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="55lPkJGL25v" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817bh" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -852,15 +852,15 @@
                               <node concept="3clFbF" id="55lPkJGLglo" role="3cqZAp">
                                 <node concept="2OqwBi" id="55lPkJGLgwQ" role="3clFbG">
                                   <node concept="37vLTw" id="55lPkJGLgln" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="55lPkJGLfSN" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817bi" resolve="it" />
                                   </node>
                                   <node concept="3YRAZt" id="55lPkJGLhWi" role="2OqNvi" />
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="55lPkJGLfSN" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817bi" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="55lPkJGLfSO" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817bj" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -1006,7 +1006,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="55lPkJGLqQR" role="3uHU7B">
                                         <node concept="37vLTw" id="55lPkJGLqQS" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="55lPkJGLqQU" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817bk" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="55lPkJGLs3L" role="2OqNvi">
                                           <ref role="3Tt5mk" to="8qwc:55lPkJGINbs" resolve="col" />
@@ -1015,9 +1015,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="55lPkJGLqQU" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817bk" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="55lPkJGLqQV" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817bl" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -1028,15 +1028,15 @@
                                 <node concept="3clFbF" id="55lPkJGLqQZ" role="3cqZAp">
                                   <node concept="2OqwBi" id="55lPkJGLqR0" role="3clFbG">
                                     <node concept="37vLTw" id="55lPkJGLqR1" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="55lPkJGLqR3" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817bm" resolve="it" />
                                     </node>
                                     <node concept="3YRAZt" id="55lPkJGLqR2" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="55lPkJGLqR3" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817bm" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="55lPkJGLqR4" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817bn" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/plugin.mps
index 2a98c02173..036c2d253a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/structure.mps
index 7e0da57b75..4c97587168 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/structure.mps
@@ -35,7 +35,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/typesystem.mps
index 8b6a701f16..b49753e966 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/models/typesystem.mps
@@ -49,7 +49,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
@@ -144,7 +144,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/org.iets3.core.expr.lookup.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/org.iets3.core.expr.lookup.mpl
index 217303b079..cdd42a1bfd 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/org.iets3.core.expr.lookup.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.lookup/org.iets3.core.expr.lookup.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
@@ -28,7 +27,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -54,7 +53,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/behavior.mps
index 1a977d4fc2..27eda96eca 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/behavior.mps
@@ -119,7 +119,7 @@
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -142,7 +142,7 @@
       <concept id="1184952934362" name="jetbrains.mps.baseLanguage.structure.DimensionExpression" flags="nn" index="3$GHV9">
         <child id="1184953288404" name="expression" index="3$I4v7" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -166,6 +166,7 @@
       <concept id="8064396509828172209" name="jetbrains.mps.baseLanguage.structure.UnaryMinus" flags="nn" index="1ZRNhn" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -253,7 +254,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -289,7 +290,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
       <concept id="1227008614712" name="jetbrains.mps.baseLanguage.collections.structure.LinkedListCreator" flags="nn" index="2Jqq0_" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1225711141656" name="jetbrains.mps.baseLanguage.collections.structure.ListElementAccessExpression" flags="nn" index="1y4W85">
@@ -1575,7 +1575,7 @@
                         <ref role="37wK5l" to="7xqi:2aG75lpC1hM" resolve="mapToPowerExpressions" />
                         <ref role="1Pybhc" to="7xqi:3iWt5efKWGp" resolve="PolynomialExpressionUtil" />
                         <node concept="37vLTw" id="2aG75lpCirv" role="37wK5m">
-                          <ref role="3cqZAo" node="2aG75lpChLY" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817bo" resolve="it" />
                         </node>
                         <node concept="2OqwBi" id="2aG75lpCmQn" role="37wK5m">
                           <node concept="2OqwBi" id="2aG75lpCj9M" role="2Oq$k0">
@@ -1589,9 +1589,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2aG75lpChLY" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817bo" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2aG75lpChLZ" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817bp" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/constraints.mps
index e9dc79fae7..55ec5ee835 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/constraints.mps
@@ -57,7 +57,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -84,6 +84,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -122,7 +123,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -136,7 +137,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -209,7 +209,7 @@
                           <node concept="3clFbF" id="1F1F0IV2N2_" role="3cqZAp">
                             <node concept="2OqwBi" id="1F1F0IV2N2A" role="3clFbG">
                               <node concept="37vLTw" id="1F1F0IV2N2B" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1F1F0IV2N2E" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817bq" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="1F1F0IV2N2C" role="2OqNvi">
                                 <node concept="chp4Y" id="1F1F0IV2N2D" role="cj9EA">
@@ -219,9 +219,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="1F1F0IV2N2E" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817bq" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="1F1F0IV2N2F" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817br" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -232,7 +232,7 @@
                         <node concept="3clFbF" id="1F1F0IV2N2J" role="3cqZAp">
                           <node concept="1PxgMI" id="1F1F0IV2N2K" role="3clFbG">
                             <node concept="37vLTw" id="1F1F0IV2N2L" role="1m5AlR">
-                              <ref role="3cqZAo" node="1F1F0IV2N2N" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bs" resolve="it" />
                             </node>
                             <node concept="chp4Y" id="1F1F0IV2N2M" role="3oSUPX">
                               <ref role="cht4Q" to="1qv1:4iu6t1eAYrK" resolve="MathLoopExpr" />
@@ -240,9 +240,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1F1F0IV2N2N" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817bs" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1F1F0IV2N2O" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817bt" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/editor.mps
index 2ea9abc5e2..811d903d97 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/editor.mps
@@ -61,11 +61,11 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
       <concept id="1630016958697286851" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_parameterObject" flags="ng" index="2ZBlsa" />
-      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ng" index="2ZBHr6">
+      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ngI" index="2ZBHr6">
         <child id="1630016958697057552" name="parameterType" index="2ZBHrp" />
       </concept>
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
@@ -82,10 +82,10 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="7580468736840446506" name="jetbrains.mps.lang.editor.structure.ConceptFunctionParameter_model" flags="nn" index="1rpKSd" />
@@ -105,7 +105,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -120,7 +120,7 @@
       <concept id="1225900081164" name="jetbrains.mps.lang.editor.structure.CellModel_ReadOnlyModelAccessor" flags="sg" stub="3708815482283559694" index="1HlG4h">
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="5624877018228264944" name="jetbrains.mps.lang.editor.structure.TransformationMenuContribution" flags="ng" index="3INDKC">
@@ -219,7 +219,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -235,7 +235,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -254,6 +254,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -384,7 +385,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -410,7 +411,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -1169,7 +1169,7 @@
                             <node concept="3fqX7Q" id="1eTp1AxLPF8" role="3clFbG">
                               <node concept="2OqwBi" id="1eTp1AxLPF9" role="3fr31v">
                                 <node concept="37vLTw" id="1eTp1AxLPFa" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1eTp1AxLPFc" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817bu" resolve="it" />
                                 </node>
                                 <node concept="liA8E" id="1eTp1AxLPFb" role="2OqNvi">
                                   <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -1178,9 +1178,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="1eTp1AxLPFc" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817bu" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="1eTp1AxLPFd" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817bv" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1198,7 +1198,7 @@
                             </node>
                             <node concept="2OqwBi" id="1eTp1AxLPFl" role="3uHU7B">
                               <node concept="37vLTw" id="1eTp1AxLPFm" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1eTp1AxLPFo" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817bw" resolve="it" />
                               </node>
                               <node concept="liA8E" id="1eTp1AxLPFn" role="2OqNvi">
                                 <ref role="37wK5l" to="c17a:~SAbstractConcept.getLanguage()" resolve="getLanguage" />
@@ -1207,9 +1207,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1eTp1AxLPFo" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817bw" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1eTp1AxLPFp" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817bx" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1390,7 +1390,7 @@
                                 <ref role="37wK5l" to="c17a:~SAbstractConcept.isSubConceptOf(org.jetbrains.mps.openapi.language.SAbstractConcept)" resolve="isSubConceptOf" />
                                 <node concept="2OqwBi" id="61R9vA3NxDQ" role="37wK5m">
                                   <node concept="37vLTw" id="61R9vA3NxDR" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="61R9vA3NxDT" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817by" resolve="it" />
                                   </node>
                                   <node concept="liA8E" id="61R9vA3NxDS" role="2OqNvi">
                                     <ref role="37wK5l" to="c17a:~SAbstractLink.getTargetConcept()" resolve="getTargetConcept" />
@@ -1400,9 +1400,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="61R9vA3NxDT" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817by" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="61R9vA3NxDU" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817bz" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/plugin.mps
index 790c2b5863..d969dd70e2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/plugin.mps
@@ -18,7 +18,7 @@
     <import index="boxz" ref="r:89e950b9-8c66-4fca-a5c0-614e0548d83a(org.iets3.core.expr.math.behavior)" />
     <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
     <import index="5qo5" ref="r:6d93ddb1-b0b0-4eee-8079-51303666672a(org.iets3.core.expr.simpleTypes.structure)" />
-    <import index="3o3z" ref="ecfb9949-7433-4db5-85de-0f84d172e4ce/java:com.google.common.collect(de.q60.mps.libs/)" />
+    <import index="3o3z" ref="ecfb9949-7433-4db5-85de-0f84d172e4ce/java:com.google.common.collect(de.q60.mps.collections.libs/)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" implicit="true" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" implicit="true" />
     <import index="b1h1" ref="r:ac5f749f-6179-4d4f-ad24-ad9edbd8077b(org.iets3.core.expr.simpleTypes.behavior)" implicit="true" />
@@ -123,7 +123,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -140,7 +140,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5497648299878491908" name="jetbrains.mps.baseLanguage.structure.BaseVariableReference" flags="nn" index="1M0zk4">
@@ -154,6 +154,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -261,7 +262,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -313,7 +314,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -489,7 +489,7 @@
                     <node concept="3fqX7Q" id="1yW0h04DHXR" role="3uHU7w">
                       <node concept="2OqwBi" id="1yW0h04DHXT" role="3fr31v">
                         <node concept="37vLTw" id="1yW0h04DHXU" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1yW0h04CzsI" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817b$" resolve="it" />
                         </node>
                         <node concept="liA8E" id="1yW0h04DHXV" role="2OqNvi">
                           <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -498,7 +498,7 @@
                     </node>
                     <node concept="2OqwBi" id="1yW0h04CzQj" role="3uHU7B">
                       <node concept="37vLTw" id="1yW0h04CzA3" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1yW0h04CzsI" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817b$" resolve="it" />
                       </node>
                       <node concept="2Zo12i" id="1yW0h04C$p_" role="2OqNvi">
                         <node concept="chp4Y" id="1yW0h04C$$k" role="2Zo12j">
@@ -509,9 +509,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="1yW0h04CzsI" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817b$" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="1yW0h04CzsJ" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817b_" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -634,7 +634,7 @@
                           <node concept="2OqwBi" id="3iWt5efL91z" role="3fr31v">
                             <node concept="2OqwBi" id="3iWt5efL91$" role="2Oq$k0">
                               <node concept="37vLTw" id="3iWt5efL91_" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3iWt5efL91D" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817bA" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="3iWt5efL91A" role="2OqNvi">
                                 <ref role="3Tt5mk" to="1qv1:4iu6t1eBdVy" resolve="expr" />
@@ -649,9 +649,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3iWt5efL91D" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817bA" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3iWt5efL91E" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817bB" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1379,7 +1379,7 @@
                         <node concept="3fqX7Q" id="4wFKMWZd2N0" role="3clFbG">
                           <node concept="2OqwBi" id="4wFKMWZd2N1" role="3fr31v">
                             <node concept="37vLTw" id="4wFKMWZd2N2" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4wFKMWZd2N5" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bC" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="4wFKMWZd2N3" role="2OqNvi">
                               <node concept="chp4Y" id="4wFKMWZd2N4" role="cj9EA">
@@ -1390,9 +1390,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4wFKMWZd2N5" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817bC" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4wFKMWZd2N6" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817bD" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/structure.mps
index b09f5941a4..280c9b66c7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/structure.mps
@@ -52,7 +52,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/typesystem.mps
index 1c74c050bd..d382741cf3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/models/typesystem.mps
@@ -31,7 +31,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -107,7 +107,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -118,7 +118,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -134,6 +134,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -285,7 +286,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -301,7 +302,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1240325842691" name="jetbrains.mps.baseLanguage.collections.structure.AsSequenceOperation" flags="nn" index="39bAoz" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -1633,7 +1633,7 @@
                               <node concept="2OqwBi" id="6q$NxWgeFBI" role="3K4E3e">
                                 <node concept="2OqwBi" id="6q$NxWgeFBJ" role="2Oq$k0">
                                   <node concept="37vLTw" id="6q$NxWgeFBK" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6q$NxWgeFBR" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817bE" resolve="it" />
                                   </node>
                                   <node concept="2yIwOk" id="6q$NxWgeFBL" role="2OqNvi" />
                                 </node>
@@ -1646,16 +1646,16 @@
                               </node>
                               <node concept="2OqwBi" id="6q$NxWgeFBO" role="3K4Cdx">
                                 <node concept="37vLTw" id="6q$NxWgeFBP" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="6q$NxWgeFBR" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817bE" resolve="it" />
                                 </node>
                                 <node concept="3x8VRR" id="6q$NxWgeFBQ" role="2OqNvi" />
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="6q$NxWgeFBR" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817bE" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="6q$NxWgeFBS" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817bF" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1890,15 +1890,15 @@
                         <ref role="37wK5l" to="7xqi:4wFKMWZSULn" resolve="canBeChildOfInnerExpression" />
                         <ref role="1Pybhc" to="7xqi:3iWt5efKWGp" resolve="PolynomialExpressionUtil" />
                         <node concept="37vLTw" id="4wFKMWZT52q" role="37wK5m">
-                          <ref role="3cqZAo" node="4wFKMWZT52r" resolve="expr" />
+                          <ref role="3cqZAo" node="4z0AnX817bG" resolve="expr" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4wFKMWZT52r" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817bG" role="1bW2Oz">
                   <property role="TrG5h" value="expr" />
-                  <node concept="2jxLKc" id="4wFKMWZT52s" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817bH" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2056,7 +2056,7 @@
                         <node concept="2OqwBi" id="3C0hCYbT693" role="3fr31v">
                           <node concept="2OqwBi" id="3C0hCYbT694" role="2Oq$k0">
                             <node concept="37vLTw" id="3C0hCYbT695" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3C0hCYbSAHs" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bI" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="3C0hCYbT696" role="2OqNvi">
                               <ref role="3Tt5mk" to="1qv1:4r1mNB_o5WJ" resolve="exponent" />
@@ -2071,9 +2071,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3C0hCYbSAHs" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817bI" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3C0hCYbSAHt" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817bJ" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2142,7 +2142,7 @@
                         <node concept="2OqwBi" id="3C0hCYbSW79" role="3clFbG">
                           <node concept="2OqwBi" id="3C0hCYbSW7a" role="2Oq$k0">
                             <node concept="37vLTw" id="3C0hCYbSW7b" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3C0hCYbSW7f" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bK" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="3C0hCYbSW7c" role="2OqNvi">
                               <ref role="3Tt5mk" to="1qv1:4r1mNB_o5WJ" resolve="exponent" />
@@ -2156,9 +2156,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3C0hCYbSW7f" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817bK" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3C0hCYbSW7g" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817bL" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2178,7 +2178,7 @@
                             </node>
                             <node concept="2OqwBi" id="3C0hCYbT2U6" role="1m5AlR">
                               <node concept="37vLTw" id="3C0hCYbSYiG" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3C0hCYbSXu4" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817bM" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="3C0hCYbT3jk" role="2OqNvi">
                                 <ref role="3Tt5mk" to="1qv1:4r1mNB_o5WJ" resolve="exponent" />
@@ -2192,9 +2192,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3C0hCYbSXu4" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817bM" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3C0hCYbSXu5" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817bN" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2264,15 +2264,15 @@
                           <ref role="37wK5l" to="7xqi:7LghZUctGPf" resolve="isValidMulExpression" />
                           <ref role="1Pybhc" to="7xqi:3iWt5efKWGp" resolve="PolynomialExpressionUtil" />
                           <node concept="37vLTw" id="7LghZUctVzr" role="37wK5m">
-                            <ref role="3cqZAo" node="3C0hCYbUC0x" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817bO" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3C0hCYbUC0x" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817bO" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3C0hCYbUC0y" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817bP" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2336,7 +2336,7 @@
                         <node concept="2OqwBi" id="3C0hCYbVFGV" role="3uHU7w">
                           <node concept="2OqwBi" id="3C0hCYbVFGW" role="2Oq$k0">
                             <node concept="37vLTw" id="3C0hCYbVFGX" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3C0hCYbVFH7" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bQ" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="3C0hCYbVFGY" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:4rZeNQ6MpKo" resolve="right" />
@@ -2351,7 +2351,7 @@
                         <node concept="2OqwBi" id="3C0hCYbVFH1" role="3uHU7B">
                           <node concept="2OqwBi" id="3C0hCYbVFH2" role="2Oq$k0">
                             <node concept="37vLTw" id="3C0hCYbVFH3" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3C0hCYbVFH7" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bQ" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="3C0hCYbVFH4" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:4rZeNQ6MpKm" resolve="left" />
@@ -2366,9 +2366,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3C0hCYbVFH7" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817bQ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3C0hCYbVFH8" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817bR" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/org.iets3.core.expr.math.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/org.iets3.core.expr.math.mpl
index e46762aceb..0259db65a9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/org.iets3.core.expr.math.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.math/org.iets3.core.expr.math.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">0fcee1cf-8f59-441b-b9c7-7ff7bdd6bc97(de.itemis.mps.editor.math.symbols)</dependency>
     <dependency reexport="false">28583149-5b6e-4663-9c02-b9a8fa3cb099(com.mbeddr.mpsutil.contextactions.runtime)</dependency>
@@ -36,7 +35,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -120,7 +119,6 @@
     <module reference="7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)" version="1" />
     <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
-    <module reference="8fe4c62a-2020-4ff4-8eda-f322a55bdc9f(jetbrains.mps.refactoring.runtime)" version="0" />
     <module reference="20c6e580-bdc5-4067-8049-d7e3265a86de(jetbrains.mps.typesystemEngine)" version="0" />
     <module reference="b0f8641f-bd77-4421-8425-30d9088a82f7(org.apache.commons)" version="0" />
     <module reference="db8bd035-3f51-41d8-8fed-954c202d18be(org.iets3.analysis.base)" version="1" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/behavior.mps
index 2940e00614..fc731d48f8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/behavior.mps
@@ -3,10 +3,10 @@
   <persistence version="9" />
   <languages>
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="-1" />
-    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
-    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
+    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
     <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
   <imports>
@@ -108,7 +108,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -119,12 +119,13 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -185,7 +186,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -196,7 +197,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="4611582986551314327" name="jetbrains.mps.baseLanguage.collections.structure.OfTypeOperation" flags="nn" index="UnYns">
         <child id="4611582986551314344" name="requestedType" index="UnYnz" />
       </concept>
@@ -725,7 +725,7 @@
                             </node>
                             <node concept="2OqwBi" id="1CNpG_h8NWS" role="37wK5m">
                               <node concept="37vLTw" id="1CNpG_h8NWT" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1CNpG_h8NWV" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817bT" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="1CNpG_h8NWU" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:7D7uZV2iYAD" resolve="type" />
@@ -738,9 +738,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1CNpG_h8NWV" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817bT" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1CNpG_h8NWW" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817bU" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -765,7 +765,7 @@
                             <node concept="2OqwBi" id="1CNpG_h9Z47" role="3uHU7w">
                               <node concept="2OqwBi" id="1CNpG_h8QMF" role="2Oq$k0">
                                 <node concept="37vLTw" id="1CNpG_h8QzW" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1CNpG_h8Onf" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817bV" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="1CNpG_h8Reu" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:7D7uZV2iYAD" resolve="type" />
@@ -782,9 +782,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1CNpG_h8Onf" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817bV" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1CNpG_h8Ong" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817bW" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -837,44 +837,6 @@
       <node concept="3clFbS" id="5crSXMDrDI" role="2VODD2" />
     </node>
   </node>
-  <node concept="13h7C7" id="12O03AaUK2d">
-    <ref role="13h7C2" to="kelk:3vxfdxbcBqr" resolve="MessageDefinition" />
-    <node concept="13i0hz" id="12O03AaUKcE" role="13h7CS">
-      <property role="TrG5h" value="allowUmlaute" />
-      <property role="2Ki8OM" value="true" />
-      <ref role="13i0hy" to="gdgh:5YygIlbih$m" resolve="allowUmlaute" />
-      <node concept="3clFbS" id="12O03AaUKcH" role="3clF47">
-        <node concept="3clFbF" id="3NUSEp5ykHk" role="3cqZAp">
-          <node concept="2YIFZM" id="6fmG8CYTZvW" role="3clFbG">
-            <ref role="1Pybhc" to="xfg9:6fmG8CYTWg1" resolve="IdentifierConfiguratorAccess" />
-            <ref role="37wK5l" to="xfg9:3NUSEp5y9$n" resolve="allowUmlautsInIdentifiers" />
-            <node concept="1fM9EW" id="6fmG8CYU4Nq" role="37wK5m" />
-          </node>
-        </node>
-      </node>
-      <node concept="10P_77" id="12O03AaUKdl" role="3clF45" />
-      <node concept="3Tm1VV" id="12O03AaUKdm" role="1B3o_S" />
-    </node>
-    <node concept="13i0hz" id="12O03AaUKdx" role="13h7CS">
-      <property role="TrG5h" value="allowParagraph" />
-      <property role="2Ki8OM" value="true" />
-      <ref role="13i0hy" to="gdgh:4ZH31cjGRan" resolve="allowParagraph" />
-      <node concept="3clFbS" id="12O03AaUKd$" role="3clF47">
-        <node concept="3clFbF" id="12O03AaUKY4" role="3cqZAp">
-          <node concept="2YIFZM" id="12O03AaUL0z" role="3clFbG">
-            <ref role="37wK5l" to="xfg9:3NUSEp5yd8T" resolve="allowParagraphsInIdentifiers" />
-            <ref role="1Pybhc" to="xfg9:6fmG8CYTWg1" resolve="IdentifierConfiguratorAccess" />
-            <node concept="1fM9EW" id="12O03AaUL0$" role="37wK5m" />
-          </node>
-        </node>
-      </node>
-      <node concept="10P_77" id="12O03AaUL62" role="3clF45" />
-      <node concept="3Tm1VV" id="12O03AaUL63" role="1B3o_S" />
-    </node>
-    <node concept="13hLZK" id="12O03AaUK2e" role="13h7CW">
-      <node concept="3clFbS" id="12O03AaUK2f" role="2VODD2" />
-    </node>
-  </node>
   <node concept="13h7C7" id="12O03AaX8ML">
     <ref role="13h7C2" to="kelk:3vxfdxbdUeD" resolve="MessageArg" />
     <node concept="13i0hz" id="12O03AaX8MW" role="13h7CS">
@@ -913,5 +875,43 @@
       <node concept="3clFbS" id="12O03AaX8MN" role="2VODD2" />
     </node>
   </node>
+  <node concept="13h7C7" id="12O03AaUK2d">
+    <ref role="13h7C2" to="kelk:3vxfdxbcBqr" resolve="MessageDefinition" />
+    <node concept="13i0hz" id="12O03AaUKcE" role="13h7CS">
+      <property role="TrG5h" value="allowUmlaute" />
+      <property role="2Ki8OM" value="true" />
+      <ref role="13i0hy" to="gdgh:5YygIlbih$m" resolve="allowUmlaute" />
+      <node concept="3clFbS" id="12O03AaUKcH" role="3clF47">
+        <node concept="3clFbF" id="3NUSEp5ykHk" role="3cqZAp">
+          <node concept="2YIFZM" id="6fmG8CYTZvW" role="3clFbG">
+            <ref role="1Pybhc" to="xfg9:6fmG8CYTWg1" resolve="IdentifierConfiguratorAccess" />
+            <ref role="37wK5l" to="xfg9:3NUSEp5y9$n" resolve="allowUmlautsInIdentifiers" />
+            <node concept="1fM9EW" id="6fmG8CYU4Nq" role="37wK5m" />
+          </node>
+        </node>
+      </node>
+      <node concept="10P_77" id="12O03AaUKdl" role="3clF45" />
+      <node concept="3Tm1VV" id="12O03AaUKdm" role="1B3o_S" />
+    </node>
+    <node concept="13i0hz" id="12O03AaUKdx" role="13h7CS">
+      <property role="TrG5h" value="allowParagraph" />
+      <property role="2Ki8OM" value="true" />
+      <ref role="13i0hy" to="gdgh:4ZH31cjGRan" resolve="allowParagraph" />
+      <node concept="3clFbS" id="12O03AaUKd$" role="3clF47">
+        <node concept="3clFbF" id="12O03AaUKY4" role="3cqZAp">
+          <node concept="2YIFZM" id="12O03AaUL0z" role="3clFbG">
+            <ref role="37wK5l" to="xfg9:3NUSEp5yd8T" resolve="allowParagraphsInIdentifiers" />
+            <ref role="1Pybhc" to="xfg9:6fmG8CYTWg1" resolve="IdentifierConfiguratorAccess" />
+            <node concept="1fM9EW" id="12O03AaUL0$" role="37wK5m" />
+          </node>
+        </node>
+      </node>
+      <node concept="10P_77" id="12O03AaUL62" role="3clF45" />
+      <node concept="3Tm1VV" id="12O03AaUL63" role="1B3o_S" />
+    </node>
+    <node concept="13hLZK" id="12O03AaUK2e" role="13h7CW">
+      <node concept="3clFbS" id="12O03AaUK2f" role="2VODD2" />
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/constraints.mps
index 33cc913043..27b1e7d0a1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/constraints.mps
@@ -63,7 +63,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -150,7 +150,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/editor.mps
index 1aa11ed352..a620defa6a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/editor.mps
@@ -79,7 +79,7 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -93,7 +93,7 @@
       <concept id="1225456267680" name="jetbrains.mps.lang.editor.structure.RGBColor" flags="ng" index="1iSF2X">
         <property id="1225456424731" name="value" index="1iTho6" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -114,7 +114,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -192,7 +192,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -221,7 +221,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -250,7 +250,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/org.iets3.core.expr.messages.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/org.iets3.core.expr.messages.migration.mps
index 29472f45ac..a031bee14f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/org.iets3.core.expr.messages.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/org.iets3.core.expr.messages.migration.mps
@@ -29,7 +29,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/plugin.mps
index bc7af9e0b1..d29f6f155c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/structure.mps
index 07fe9354d1..3946ed825a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/structure.mps
@@ -55,7 +55,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/typesystem.mps
index f0360291cb..9d23393592 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/models/typesystem.mps
@@ -67,7 +67,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -104,6 +104,7 @@
       <concept id="1175517767210" name="jetbrains.mps.lang.typesystem.structure.ReportErrorStatement" flags="nn" index="2MkqsV">
         <child id="1175517851849" name="errorString" index="2MkJ7o" />
       </concept>
+      <concept id="1179832490862" name="jetbrains.mps.lang.typesystem.structure.CreateStrongLessThanInequationStatement" flags="nn" index="2NvLDW" />
       <concept id="1195213580585" name="jetbrains.mps.lang.typesystem.structure.AbstractCheckingRule" flags="ig" index="18hYwZ">
         <child id="1195213635060" name="body" index="18ibNy" />
       </concept>
@@ -159,7 +160,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -602,20 +603,20 @@
                 </node>
               </node>
             </node>
-            <node concept="1Z5TYs" id="3vxfdxbtkR2" role="3cqZAp">
-              <node concept="mw_s8" id="3vxfdxbtkR3" role="1ZfhKB">
-                <node concept="2YIFZM" id="5wDe8wA6zrI" role="mwGJk">
-                  <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-                  <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-                </node>
-              </node>
-              <node concept="mw_s8" id="3vxfdxbtkR5" role="1ZfhK$">
-                <node concept="1Z2H0r" id="3vxfdxbtkR6" role="mwGJk">
-                  <node concept="1YBJjd" id="3vxfdxbtkR7" role="1Z2MuG">
+            <node concept="1ZobV4" id="hTGlT9G0uY" role="3cqZAp">
+              <node concept="mw_s8" id="hTGlT9G0v2" role="1ZfhK$">
+                <node concept="1Z2H0r" id="hTGlT9G0v3" role="mwGJk">
+                  <node concept="1YBJjd" id="hTGlT9G0v4" role="1Z2MuG">
                     <ref role="1YBMHb" node="3vxfdxbeBg6" resolve="mar" />
                   </node>
                 </node>
               </node>
+              <node concept="mw_s8" id="hTGlT9G0v0" role="1ZfhKB">
+                <node concept="2YIFZM" id="hTGlT9G0v1" role="mwGJk">
+                  <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+                  <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+                </node>
+              </node>
             </node>
           </node>
         </node>
@@ -675,25 +676,25 @@
   <node concept="1YbPZF" id="3vxfdxbgQrM">
     <property role="TrG5h" value="typeof_Message" />
     <node concept="3clFbS" id="3vxfdxbgQrN" role="18ibNy">
-      <node concept="1Z5TYs" id="3vxfdxbgRiw" role="3cqZAp">
-        <node concept="mw_s8" id="3vxfdxbgRj2" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrJ" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="3vxfdxbgRiz" role="1ZfhK$">
-          <node concept="1Z2H0r" id="3vxfdxbgQrW" role="mwGJk">
-            <node concept="2OqwBi" id="3vxfdxbgQAi" role="1Z2MuG">
-              <node concept="1YBJjd" id="3vxfdxbgQsf" role="2Oq$k0">
+      <node concept="2NvLDW" id="hTGlT9FUh_" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9FUhB" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9FUhC" role="mwGJk">
+            <node concept="2OqwBi" id="hTGlT9FUhD" role="1Z2MuG">
+              <node concept="1YBJjd" id="hTGlT9FUhE" role="2Oq$k0">
                 <ref role="1YBMHb" node="3vxfdxbgQrP" resolve="msg" />
               </node>
-              <node concept="3TrEf2" id="3vxfdxbgR1v" role="2OqNvi">
+              <node concept="3TrEf2" id="hTGlT9FUhF" role="2OqNvi">
                 <ref role="3Tt5mk" to="kelk:3vxfdxbdM7Q" resolve="text" />
               </node>
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9FUhG" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9FUhH" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="3vxfdxbgQrP" role="1YuTPh">
@@ -742,25 +743,25 @@
   <node concept="1YbPZF" id="3vxfdxblP5O">
     <property role="TrG5h" value="typeof_TypeCoercion" />
     <node concept="3clFbS" id="3vxfdxblP5P" role="18ibNy">
-      <node concept="1Z5TYs" id="3vxfdxblPRi" role="3cqZAp">
-        <node concept="mw_s8" id="3vxfdxblPRO" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrK" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="3vxfdxblPRl" role="1ZfhK$">
-          <node concept="1Z2H0r" id="3vxfdxblP61" role="mwGJk">
-            <node concept="2OqwBi" id="3vxfdxblPfg" role="1Z2MuG">
-              <node concept="1YBJjd" id="3vxfdxblP7Q" role="2Oq$k0">
+      <node concept="1ZobV4" id="hTGlT9G0JE" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9G0JI" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9G0JJ" role="mwGJk">
+            <node concept="2OqwBi" id="hTGlT9G0JK" role="1Z2MuG">
+              <node concept="1YBJjd" id="hTGlT9G0JL" role="2Oq$k0">
                 <ref role="1YBMHb" node="3vxfdxblP5R" resolve="tc" />
               </node>
-              <node concept="3TrEf2" id="3vxfdxblPnS" role="2OqNvi">
+              <node concept="3TrEf2" id="hTGlT9G0JM" role="2OqNvi">
                 <ref role="3Tt5mk" to="kelk:3vxfdxblP40" resolve="expr" />
               </node>
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9G0JG" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9G0JH" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="3vxfdxblP5R" role="1YuTPh">
@@ -841,20 +842,20 @@
   <node concept="1YbPZF" id="4AahbtUN3uG">
     <property role="TrG5h" value="typeof_MessageValueTextOp" />
     <node concept="3clFbS" id="4AahbtUN3uH" role="18ibNy">
-      <node concept="1Z5TYs" id="4AahbtUN3Je" role="3cqZAp">
-        <node concept="mw_s8" id="4AahbtUN3Jv" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrL" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="4AahbtUN3Jh" role="1ZfhK$">
-          <node concept="1Z2H0r" id="4AahbtUN3uT" role="mwGJk">
-            <node concept="1YBJjd" id="4AahbtUN3wF" role="1Z2MuG">
+      <node concept="1ZobV4" id="hTGlT9G0E8" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9G0Ec" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9G0Ed" role="mwGJk">
+            <node concept="1YBJjd" id="hTGlT9G0Ee" role="1Z2MuG">
               <ref role="1YBMHb" node="4AahbtUN3uJ" resolve="mvto" />
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9G0Ea" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9G0Eb" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="4AahbtUN3uJ" role="1YuTPh">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/org.iets3.core.expr.messages.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/org.iets3.core.expr.messages.mpl
index 08aaceec8c..ce0958f333 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/org.iets3.core.expr.messages.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.messages/org.iets3.core.expr.messages.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
@@ -31,7 +30,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -54,7 +53,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/behavior.mps
index ae6c3bd9c9..5cc6a55847 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/behavior.mps
@@ -5,7 +5,7 @@
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
@@ -118,7 +118,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -130,7 +130,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -138,6 +138,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -195,7 +196,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -225,7 +226,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -1091,7 +1091,7 @@
                             </node>
                             <node concept="2OqwBi" id="3WWvqarxz2e" role="3uHU7B">
                               <node concept="37vLTw" id="3WWvqarxz2f" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3WWvqarxz2h" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817bX" resolve="it" />
                               </node>
                               <node concept="3TrcHB" id="3WWvqarxz2g" role="2OqNvi">
                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1100,9 +1100,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3WWvqarxz2h" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817bX" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3WWvqarxz2i" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817bY" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1239,16 +1239,16 @@
                           </node>
                           <node concept="3JPx81" id="3WWvqarxRU2" role="2OqNvi">
                             <node concept="37vLTw" id="3WWvqarxRU3" role="25WWJ7">
-                              <ref role="3cqZAo" node="3WWvqarxRU4" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817bZ" resolve="it" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3WWvqarxRU4" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817bZ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3WWvqarxRU5" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817c0" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1266,15 +1266,15 @@
                   <node concept="3clFbF" id="3WWvqarxSNE" role="3cqZAp">
                     <node concept="2OqwBi" id="3WWvqarxT0b" role="3clFbG">
                       <node concept="37vLTw" id="3WWvqarxSND" role="2Oq$k0">
-                        <ref role="3cqZAo" node="3WWvqarxSLP" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817c1" resolve="it" />
                       </node>
                       <node concept="3YRAZt" id="3WWvqarxTxO" role="2OqNvi" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3WWvqarxSLP" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817c1" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3WWvqarxSLQ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817c2" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/constraints.mps
index 42a18cdef4..20ce4d6cbf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/constraints.mps
@@ -29,7 +29,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/editor.mps
index 5b3c1db0d4..72f3766972 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/editor.mps
@@ -61,7 +61,7 @@
       <concept id="1225456267680" name="jetbrains.mps.lang.editor.structure.RGBColor" flags="ng" index="1iSF2X">
         <property id="1225456424731" name="value" index="1iTho6" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1088185857835" name="jetbrains.mps.lang.editor.structure.InlineEditorComponent" flags="ig" index="1sVBvm" />
@@ -77,7 +77,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -105,7 +105,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
     </language>
@@ -113,7 +113,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/org.iets3.core.expr.metafunction.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/org.iets3.core.expr.metafunction.migration.mps
index 408ea56afd..901cb3f780 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/org.iets3.core.expr.metafunction.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/org.iets3.core.expr.metafunction.migration.mps
@@ -28,7 +28,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/plugin.mps
index 8a880e4d4b..0cb1a0851a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
@@ -30,7 +30,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -119,7 +119,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -136,13 +136,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -161,7 +162,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -177,7 +178,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
@@ -504,7 +504,7 @@
                       <node concept="2OqwBi" id="5cK3QOdiKgM" role="3clFbG">
                         <node concept="2OqwBi" id="5cK3QOdiKgN" role="2Oq$k0">
                           <node concept="37vLTw" id="5cK3QOdiKgO" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5cK3QOdiKgS" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817c3" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="5cK3QOdiKgP" role="2OqNvi">
                             <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -519,9 +519,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5cK3QOdiKgS" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817c3" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5cK3QOdiKgT" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817c4" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -627,7 +627,7 @@
                       <node concept="2OqwBi" id="559q5A2CC9x" role="3clFbG">
                         <node concept="2OqwBi" id="559q5A2CC9y" role="2Oq$k0">
                           <node concept="37vLTw" id="559q5A2CC9z" role="2Oq$k0">
-                            <ref role="3cqZAo" node="559q5A2CC9B" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817c5" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="559q5A2CC9$" role="2OqNvi">
                             <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -642,9 +642,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="559q5A2CC9B" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817c5" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="559q5A2CC9C" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817c6" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/structure.mps
index ab794e1e7d..323924e9f1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/structure.mps
@@ -53,7 +53,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/typesystem.mps
index a9fe297876..c847e6a66d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/models/typesystem.mps
@@ -61,7 +61,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -140,7 +140,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/org.iets3.core.expr.metafunction.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/org.iets3.core.expr.metafunction.mpl
index d2e49fc90a..c34be8cb2e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/org.iets3.core.expr.metafunction.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.metafunction/org.iets3.core.expr.metafunction.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">47f075a6-558e-4640-a606-7ce0236c8023(com.mbeddr.mpsutil.interpreter)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -27,7 +26,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -55,7 +54,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/behavior.mps
index 07a907d07f..461a72877e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/behavior.mps
@@ -124,7 +124,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -136,13 +136,14 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -200,7 +201,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -225,7 +226,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -915,7 +915,7 @@
                     <node concept="3clFbF" id="31HpwbwBaPp" role="3cqZAp">
                       <node concept="2OqwBi" id="31HpwbwBb3N" role="3clFbG">
                         <node concept="37vLTw" id="31HpwbwBaPo" role="2Oq$k0">
-                          <ref role="3cqZAo" node="31HpwbwBaFW" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817c7" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="31HpwbwBbm9" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
@@ -923,9 +923,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="31HpwbwBaFW" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817c7" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="31HpwbwBaFX" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817c8" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/constraints.mps
index 7e2f2db068..76be439614 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/constraints.mps
@@ -33,7 +33,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/editor.mps
index 9b45acb8b1..8714ef0c76 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/editor.mps
@@ -27,7 +27,7 @@
   <registry>
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -53,7 +53,7 @@
       <concept id="1142886221719" name="jetbrains.mps.lang.editor.structure.QueryFunction_NodeCondition" flags="in" index="pkWqt" />
       <concept id="1142886811589" name="jetbrains.mps.lang.editor.structure.ConceptFunctionParameter_node" flags="nn" index="pncrf" />
       <concept id="1177327570013" name="jetbrains.mps.lang.editor.structure.QueryFunction_SubstituteMenu_Substitute" flags="in" index="ucgPf" />
-      <concept id="8478191136883534237" name="jetbrains.mps.lang.editor.structure.IExtensibleSubstituteMenuPart" flags="ng" index="upBLQ">
+      <concept id="8478191136883534237" name="jetbrains.mps.lang.editor.structure.IExtensibleSubstituteMenuPart" flags="ngI" index="upBLQ">
         <child id="8478191136883534238" name="features" index="upBLP" />
       </concept>
       <concept id="1177335944525" name="jetbrains.mps.lang.editor.structure.QueryFunction_SubstituteMenu_SubstituteString" flags="in" index="uGdhv" />
@@ -106,12 +106,12 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
       <concept id="1630016958697286851" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_parameterObject" flags="ng" index="2ZBlsa" />
-      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ng" index="2ZBHr6">
+      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ngI" index="2ZBHr6">
         <child id="1630016958697057552" name="parameterType" index="2ZBHrp" />
       </concept>
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
@@ -133,7 +133,7 @@
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -157,13 +157,13 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
       <concept id="5624877018226900666" name="jetbrains.mps.lang.editor.structure.TransformationMenu" flags="ng" index="3ICUPy" />
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="6419604448124516209" name="jetbrains.mps.lang.editor.structure.QueryFunction_IsMethodCurrent" flags="in" index="3LVrda" />
@@ -267,7 +267,7 @@
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -284,7 +284,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -303,6 +303,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -316,7 +317,7 @@
       </concept>
       <concept id="2283544813052478257" name="com.mbeddr.mpsutil.grammarcells.structure.GrammarCellsTransformationMenuPart" flags="ng" index="2X7gjp" />
       <concept id="8945098465480383073" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell_TransformationText" flags="ig" index="ZYGn8" />
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -326,7 +327,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -392,7 +393,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -403,7 +404,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -1467,7 +1467,7 @@
                       <node concept="17R0WA" id="4jf2Bbg3WnS" role="3uHU7w">
                         <node concept="2OqwBi" id="LBlPJUzjy0" role="3uHU7B">
                           <node concept="37vLTw" id="2BHiRxgmtw8" role="2Oq$k0">
-                            <ref role="3cqZAo" node="LBlPJUzjy9" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817c9" resolve="it" />
                           </node>
                           <node concept="2NL2c5" id="4jf2Bbg3VqC" role="2OqNvi" />
                         </node>
@@ -1482,7 +1482,7 @@
                         </node>
                         <node concept="2OqwBi" id="LBlPJUzjy4" role="3uHU7B">
                           <node concept="37vLTw" id="2BHiRxglFWd" role="2Oq$k0">
-                            <ref role="3cqZAo" node="LBlPJUzjy9" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817c9" resolve="it" />
                           </node>
                           <node concept="1mfA1w" id="LBlPJUzjy6" role="2OqNvi" />
                         </node>
@@ -1490,9 +1490,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="LBlPJUzjy9" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817c9" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1P4c1XrzTlB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ca" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1775,7 +1775,7 @@
                       </node>
                       <node concept="2OqwBi" id="5kGo$yLRRiB" role="3uHU7B">
                         <node concept="37vLTw" id="5kGo$yLRR1I" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5kGo$yLRQHo" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cb" resolve="it" />
                         </node>
                         <node concept="2OwXpG" id="5kGo$yLRRYy" role="2OqNvi">
                           <ref role="2Oxat5" to="n9sl:5y3VELftA2d" resolve="name" />
@@ -1784,9 +1784,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5kGo$yLRQHo" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cb" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5kGo$yLRQHp" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817cc" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2292,7 +2292,7 @@
                               <node concept="3clFbF" id="6XMQOZe8nv4" role="3cqZAp">
                                 <node concept="2OqwBi" id="6XMQOZe8nZQ" role="3clFbG">
                                   <node concept="37vLTw" id="6XMQOZe8nv3" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6XMQOZe8nd4" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817cd" resolve="it" />
                                   </node>
                                   <node concept="liA8E" id="6XMQOZe8s8c" role="2OqNvi">
                                     <ref role="37wK5l" to="n9sl:6XMQOZe876T" resolve="canBeUsedWithThisValue" />
@@ -2308,9 +2308,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6XMQOZe8nd4" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817cd" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="6XMQOZe8nd5" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817ce" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2354,7 +2354,7 @@
                     <node concept="3clFbF" id="6XMQOZe81JA" role="3cqZAp">
                       <node concept="2OqwBi" id="6XMQOZe81JB" role="3clFbG">
                         <node concept="37vLTw" id="6XMQOZe81JC" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6XMQOZe81JE" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cf" resolve="it" />
                         </node>
                         <node concept="2OwXpG" id="6XMQOZe81JD" role="2OqNvi">
                           <ref role="2Oxat5" to="n9sl:5y3VELftA2d" resolve="name" />
@@ -2362,9 +2362,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6XMQOZe81JE" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817cf" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6XMQOZe81JF" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817cg" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2454,7 +2454,7 @@
                     <node concept="3clFbF" id="Z4fkwz75Vd" role="3cqZAp">
                       <node concept="2OqwBi" id="Z4fkwz75Ve" role="3clFbG">
                         <node concept="37vLTw" id="Z4fkwz75Vf" role="2Oq$k0">
-                          <ref role="3cqZAo" node="Z4fkwz75Vh" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ch" resolve="it" />
                         </node>
                         <node concept="2OwXpG" id="Z4fkwz75Vg" role="2OqNvi">
                           <ref role="2Oxat5" to="n9sl:5y3VELftA2d" resolve="name" />
@@ -2462,9 +2462,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="Z4fkwz75Vh" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ch" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="Z4fkwz75Vi" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817ci" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/intentions.mps
index db682025a9..d9cc1d25b9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/intentions.mps
@@ -55,7 +55,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/migration.mps
index 5516bb12a7..baab35b7eb 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/migration.mps
@@ -23,7 +23,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/plugin.mps
index d438ef62a5..982d1cb160 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/plugin.mps
@@ -38,7 +38,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -160,7 +160,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -182,7 +182,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615">
@@ -198,6 +198,7 @@
       <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -247,7 +248,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -279,7 +280,6 @@
       <concept id="1201306600024" name="jetbrains.mps.baseLanguage.collections.structure.ContainsKeyOperation" flags="nn" index="2Nt0df">
         <child id="1201654602639" name="key" index="38cxEo" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1237909114519" name="jetbrains.mps.baseLanguage.collections.structure.GetValuesOperation" flags="nn" index="T8wYR" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
@@ -1486,7 +1486,7 @@
                     <node concept="2OqwBi" id="Z4fkwz70fS" role="3clFbG">
                       <node concept="2OqwBi" id="Z4fkwz6Zib" role="2Oq$k0">
                         <node concept="37vLTw" id="Z4fkwz6Z18" role="2Oq$k0">
-                          <ref role="3cqZAo" node="Z4fkwz6YN8" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cj" resolve="it" />
                         </node>
                         <node concept="2OwXpG" id="Z4fkwz6Z_$" role="2OqNvi">
                           <ref role="2Oxat5" node="5y3VELftA2d" resolve="name" />
@@ -1501,9 +1501,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="Z4fkwz6YN8" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cj" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="Z4fkwz6YN9" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ck" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4014,7 +4014,7 @@
                             <ref role="37wK5l" node="4IV0h47l1qI" resolve="ContextValue" />
                             <node concept="2OqwBi" id="4IV0h47O$Hk" role="37wK5m">
                               <node concept="37vLTw" id="4IV0h47O$Hl" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4IV0h47O$Hr" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817cl" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="4IV0h47O$Hm" role="2OqNvi">
                                 <ref role="3Tt5mk" to="8lgj:4IV0h47hCXz" resolve="argument" />
@@ -4033,7 +4033,7 @@
                                 <ref role="37wK5l" to="2ahs:2X4$XGmegKw" resolve="evaluate" />
                                 <node concept="2OqwBi" id="4IV0h47O$Ho" role="37wK5m">
                                   <node concept="37vLTw" id="4IV0h47O$Hp" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="4IV0h47O$Hr" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817cl" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="4IV0h47O$Hq" role="2OqNvi">
                                     <ref role="3Tt5mk" to="8lgj:4IV0h47hCX_" resolve="value" />
@@ -4059,9 +4059,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4IV0h47O$Hr" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817cl" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4IV0h47O$Hs" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817cm" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -4686,7 +4686,7 @@
                     <node concept="3clFbF" id="4IV0h48ipFa" role="3cqZAp">
                       <node concept="2OqwBi" id="4IV0h48ipFb" role="3clFbG">
                         <node concept="37vLTw" id="4IV0h48ipFc" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4IV0h48ipFf" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cn" resolve="it" />
                         </node>
                         <node concept="liA8E" id="4IV0h48ipFd" role="2OqNvi">
                           <ref role="37wK5l" node="4IV0h48f60S" resolve="isAfter" />
@@ -4697,9 +4697,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4IV0h48ipFf" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817cn" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4IV0h48ipFg" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817co" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4792,7 +4792,7 @@
                         <node concept="3clFbF" id="5hiN5PkqD5H" role="3cqZAp">
                           <node concept="2OqwBi" id="5hiN5PkqD5I" role="3clFbG">
                             <node concept="37vLTw" id="5hiN5PkqD5J" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5hiN5PkqD5N" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817cp" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="5hiN5PkqD5K" role="2OqNvi">
                               <node concept="25Kdxt" id="5hiN5PkqD5L" role="cj9EA">
@@ -4804,9 +4804,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5hiN5PkqD5N" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817cp" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5hiN5PkqD5O" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817cq" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/structure.mps
index 1f5b917454..0d9d3e17fd 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/structure.mps
@@ -51,7 +51,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/typesystem.mps
index 1493cc95b9..5332730929 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/models/typesystem.mps
@@ -86,7 +86,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -226,7 +226,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/org.iets3.core.expr.mutable.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/org.iets3.core.expr.mutable.mpl
index cc516ae34c..db1f5d431f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/org.iets3.core.expr.mutable.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.mutable/org.iets3.core.expr.mutable.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">735f86bc-17fb-4d1c-a664-82c2b8e8a34e(com.mbeddr.mpsutil.interpreter.rt)</dependency>
@@ -30,7 +29,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/behavior.mps
index a6f22e782d..f9d4f93627 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/behavior.mps
@@ -78,19 +78,20 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -122,7 +123,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -134,7 +135,6 @@
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="5232196642625575054" name="jetbrains.mps.baseLanguage.collections.structure.TailListOperation" flags="nn" index="1eb2uI">
         <child id="5232196642625575056" name="fromIndex" index="1eb2uK" />
@@ -206,7 +206,7 @@
                       <node concept="3clFbF" id="5Q45tqZqIty" role="3cqZAp">
                         <node concept="37vLTI" id="5Q45tqZqItz" role="3clFbG">
                           <node concept="37vLTw" id="5Q45tqZqIt$" role="37vLTx">
-                            <ref role="3cqZAo" node="5Q45tqZqItE" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817cs" resolve="it" />
                           </node>
                           <node concept="2OqwBi" id="5Q45tqZqIt_" role="37vLTJ">
                             <node concept="37vLTw" id="5Q45tqZqItA" role="2Oq$k0">
@@ -224,9 +224,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5Q45tqZqItE" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817cs" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5Q45tqZqItF" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817ct" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/constraints.mps
index a0c369636a..bcedb972e8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/constraints.mps
@@ -57,7 +57,7 @@
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -89,6 +89,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -147,7 +148,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -161,7 +162,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="5232196642625575054" name="jetbrains.mps.baseLanguage.collections.structure.TailListOperation" flags="nn" index="1eb2uI">
         <child id="5232196642625575056" name="fromIndex" index="1eb2uK" />
@@ -300,7 +300,7 @@
                           <node concept="2OqwBi" id="1F1F0IV2N96" role="3uHU7w">
                             <node concept="2OqwBi" id="1F1F0IV2N97" role="2Oq$k0">
                               <node concept="37vLTw" id="1F1F0IV2N98" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1F1F0IV2N9f" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817cu" resolve="it" />
                               </node>
                               <node concept="3CFZ6_" id="1F1F0IV2N99" role="2OqNvi">
                                 <node concept="3CFYIy" id="1F1F0IV2N9a" role="3CFYIz">
@@ -312,7 +312,7 @@
                           </node>
                           <node concept="2OqwBi" id="1F1F0IV2N9c" role="3uHU7B">
                             <node concept="37vLTw" id="1F1F0IV2N9d" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1F1F0IV2N9f" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817cu" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="1F1F0IV2N9e" role="2OqNvi">
                               <ref role="3TsBF5" to="zzzn:2uR5X5azvjH" resolve="ext" />
@@ -321,9 +321,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IV2N9f" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817cu" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IV2N9g" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817cv" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -387,7 +387,7 @@
                                 <node concept="2OqwBi" id="1F1F0IV2NlI" role="2Oq$k0">
                                   <node concept="2OqwBi" id="1F1F0IV2NlJ" role="2Oq$k0">
                                     <node concept="37vLTw" id="1F1F0IV2NlK" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="1F1F0IV2NlQ" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817cw" resolve="it" />
                                     </node>
                                     <node concept="3Tsc0h" id="1F1F0IV2NlL" role="2OqNvi">
                                       <ref role="3TtcxE" to="zzzn:49WTic8eSCZ" resolve="args" />
@@ -406,9 +406,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IV2NlQ" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817cw" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IV2NlR" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817cx" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/editor.mps
index 48edf8c157..87f9f742fa 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/editor.mps
@@ -29,7 +29,7 @@
       <concept id="1402906326895675325" name="jetbrains.mps.lang.editor.structure.CellActionMap_FunctionParm_selectedNode" flags="nn" index="0IXxy" />
       <concept id="5991739802479784074" name="jetbrains.mps.lang.editor.structure.MenuTypeNamed" flags="ng" index="22hDWg" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -61,7 +61,7 @@
       <concept id="1164996492011" name="jetbrains.mps.lang.editor.structure.CellMenuPart_ReferentPrimary" flags="ng" index="ZcVJ$">
         <child id="6918029743851332884" name="matchingText" index="1NQq9M" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -100,7 +100,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -137,7 +137,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -239,7 +239,7 @@
         <child id="1206060619838" name="condition" index="3eO9$A" />
         <child id="1206060644605" name="statementList" index="3eOfB_" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -258,7 +258,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -269,6 +269,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -316,7 +317,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -332,7 +333,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
     </language>
   </registry>
@@ -1114,7 +1114,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="ywgKCSJYaD" role="3uHU7B">
                                     <node concept="37vLTw" id="ywgKCSJY7z" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="ywgKCSJY1R" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817cy" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="5Q45tqZsgiU" role="2OqNvi">
                                       <ref role="3Tt5mk" to="1xa4:1u1U5lEZLAq" resolve="param" />
@@ -1123,9 +1123,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="ywgKCSJY1R" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817cy" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="ywgKCSJY1S" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817cz" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/intentions.mps
index 82011e0f97..683f7262c6 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/intentions.mps
@@ -69,7 +69,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/plugin.mps
index e8245c15d4..d5c5f7d8a6 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:b85249db-2057-4d49-9db5-ae0352c72936(org.iets3.core.expr.natlang.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
   </languages>
   <imports />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/structure.mps
index b14321d657..1cd39995b0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/structure.mps
@@ -44,7 +44,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/typesystem.mps
index 47937c3f9f..a50b89dca9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/models/typesystem.mps
@@ -54,7 +54,7 @@
       </concept>
       <concept id="1068581242869" name="jetbrains.mps.baseLanguage.structure.MinusExpression" flags="nn" index="3cpWsd" />
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -126,7 +126,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/org.iets3.core.expr.natlang.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/org.iets3.core.expr.natlang.mpl
index 86a973d092..ba2d9f6666 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/org.iets3.core.expr.natlang.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.natlang/org.iets3.core.expr.natlang.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="true">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -24,7 +23,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -45,7 +44,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/behavior.mps
index d815120b90..8d146653b0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/behavior.mps
@@ -73,7 +73,7 @@
       <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
         <child id="1068581517676" name="expression" index="3cqZAk" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
@@ -83,7 +83,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -113,7 +113,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/constraints.mps
index 47adc60b28..8e0e4d7d14 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/constraints.mps
@@ -65,7 +65,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -123,7 +123,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/editor.mps
index 75f00a41b0..2bf44b5c19 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/editor.mps
@@ -22,7 +22,7 @@
         <child id="1186403803051" name="query" index="VblUZ" />
       </concept>
       <concept id="1186404549998" name="jetbrains.mps.lang.editor.structure.ForegroundColorStyleClassItem" flags="ln" index="VechU" />
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -33,7 +33,7 @@
       <concept id="1139848536355" name="jetbrains.mps.lang.editor.structure.CellModel_WithRole" flags="ng" index="1$h60E">
         <reference id="1140103550593" name="relationDeclaration" index="1NtTu8" />
       </concept>
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1225898583838" name="jetbrains.mps.lang.editor.structure.ReadOnlyModelAccessor" flags="ng" index="1HfYo3">
@@ -62,7 +62,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/plugin.mps
index f545c150bc..8e9c386f45 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:14d19f45-b1ff-401e-875c-62c48d110e0a(org.iets3.core.expr.path.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
@@ -30,7 +30,7 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615" />
@@ -42,7 +42,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/structure.mps
index 37ab65e368..8e99cff93a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/structure.mps
@@ -35,7 +35,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/typesystem.mps
index 64c7e1de82..99a5f80aaf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/models/typesystem.mps
@@ -60,7 +60,7 @@
         <child id="1206060619838" name="condition" index="3eO9$A" />
         <child id="1206060644605" name="statementList" index="3eOfB_" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -126,7 +126,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/org.iets3.core.expr.path.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/org.iets3.core.expr.path.mpl
index 71ce3f5a56..438e55e6d1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/org.iets3.core.expr.path.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.path/org.iets3.core.expr.path.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -42,7 +41,7 @@
     <language slang="l:18bc6592-03a6-4e29-a83a-7ff23bde13ba:jetbrains.mps.lang.editor" version="14" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.behavior.mps
index 39f91e8851..5f8a333346 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.behavior.mps
@@ -160,7 +160,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -173,7 +173,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -185,6 +185,7 @@
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -232,7 +233,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -251,7 +252,6 @@
         <child id="1235573175711" name="elementType" index="2HTBi0" />
         <child id="1235573187520" name="singletonValue" index="2HTEbv" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
     </language>
@@ -478,15 +478,15 @@
                       <node concept="liA8E" id="1mDdTFSvNt" role="2OqNvi">
                         <ref role="37wK5l" to="33ny:~Collection.contains(java.lang.Object)" resolve="contains" />
                         <node concept="37vLTw" id="1mDdTFSvRG" role="37wK5m">
-                          <ref role="3cqZAo" node="1mDdTFSuIL" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817c$" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1mDdTFSuIL" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817c$" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1mDdTFSuIM" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817c_" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -923,7 +923,7 @@
                       <node concept="2OqwBi" id="4IV0h47t3Ap" role="3clFbG">
                         <node concept="2OqwBi" id="4IV0h47t3Aq" role="2Oq$k0">
                           <node concept="37vLTw" id="4IV0h47t3Ar" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4IV0h47t3Av" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817cA" resolve="it" />
                           </node>
                           <node concept="2OwXpG" id="4IV0h47t3As" role="2OqNvi">
                             <ref role="2Oxat5" to="n9sl:4IV0h47l1DZ" resolve="arg" />
@@ -937,9 +937,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4IV0h47t3Av" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817cA" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4IV0h47t3Aw" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817cB" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1338,7 +1338,7 @@
                       <node concept="2OqwBi" id="4IV0h48m1SO" role="3clFbG">
                         <node concept="2OqwBi" id="4IV0h48m1SP" role="2Oq$k0">
                           <node concept="37vLTw" id="4IV0h48m1SQ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4IV0h48m1SU" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817cC" resolve="it" />
                           </node>
                           <node concept="2OwXpG" id="4IV0h48m1SR" role="2OqNvi">
                             <ref role="2Oxat5" to="n9sl:4IV0h47l1DZ" resolve="arg" />
@@ -1352,9 +1352,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4IV0h48m1SU" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817cC" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4IV0h48m1SV" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817cD" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.constraints.mps
index ac8640d1b9..993d014b4f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.constraints.mps
@@ -55,7 +55,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -117,7 +117,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.editor.mps
index 4b40b4b6ae..f02dfbaa21 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.editor.mps
@@ -53,7 +53,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="3982520150125052579" name="jetbrains.mps.lang.editor.structure.QueryFunction_AttributeStyleParameter" flags="ig" index="3sjG9q" />
@@ -78,7 +78,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.structure.mps
index 8e01f7b5c8..adc3e897ca 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.structure.mps
@@ -47,7 +47,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.typesystem.mps
index 255f84aa27..d67aa68363 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/org.iets3.core.expr.process.typesystem.mps
@@ -69,7 +69,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -187,7 +187,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/plugin.mps
index 06aa7d8b3a..7699bc08c2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
@@ -52,7 +52,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -164,7 +164,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -185,7 +185,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -199,6 +199,7 @@
       <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -236,7 +237,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -271,7 +272,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -1337,7 +1337,7 @@
                           <node concept="1rXfSq" id="VApoyDGfeg" role="37wK5m">
                             <ref role="37wK5l" to="n9sl:Z4fkwzhf8Q" resolve="eval" />
                             <node concept="37vLTw" id="VApoyDGfDl" role="37wK5m">
-                              <ref role="3cqZAo" node="VApoyDGcyH" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817cE" resolve="it" />
                             </node>
                             <node concept="2ShNRf" id="VApoyDGfZ3" role="37wK5m">
                               <node concept="1pGfFk" id="VApoyDGfXi" role="2ShVmc">
@@ -1353,9 +1353,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="VApoyDGcyH" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cE" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="VApoyDGcyI" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817cF" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2199,7 +2199,7 @@
                                 <node concept="1rXfSq" id="1mDdTFSOfR" role="3clFbG">
                                   <ref role="37wK5l" to="n9sl:Z4fkwzhf8Q" resolve="eval" />
                                   <node concept="37vLTw" id="1mDdTFSOfS" role="37wK5m">
-                                    <ref role="3cqZAo" node="1mDdTFSOfU" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817cG" resolve="it" />
                                   </node>
                                   <node concept="37vLTw" id="1mDdTFSOfT" role="37wK5m">
                                     <ref role="3cqZAo" node="Z4fkwziK1L" resolve="trace" />
@@ -2207,9 +2207,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="1mDdTFSOfU" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817cG" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="1mDdTFSOfV" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817cH" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2282,7 +2282,7 @@
                                     <node concept="1rXfSq" id="3wXkdMVm9aj" role="3clFbG">
                                       <ref role="37wK5l" to="n9sl:Z4fkwzhf8Q" resolve="eval" />
                                       <node concept="37vLTw" id="3wXkdMVm9ak" role="37wK5m">
-                                        <ref role="3cqZAo" node="3wXkdMVm9am" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817cI" resolve="it" />
                                       </node>
                                       <node concept="37vLTw" id="3wXkdMVm9al" role="37wK5m">
                                         <ref role="3cqZAo" node="Z4fkwziK1L" resolve="trace" />
@@ -2290,9 +2290,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="3wXkdMVm9am" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817cI" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="3wXkdMVm9an" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817cJ" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/org.iets3.core.expr.process.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/org.iets3.core.expr.process.mpl
index 5f17acd3c4..2dbe2a8118 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/org.iets3.core.expr.process.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.process/org.iets3.core.expr.process.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">735f86bc-17fb-4d1c-a664-82c2b8e8a34e(com.mbeddr.mpsutil.interpreter.rt)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -31,7 +30,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -57,7 +56,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.behavior.mps
index f9fb88e5d9..14eb5448e0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.behavior.mps
@@ -66,11 +66,11 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -114,7 +114,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.editor.mps
index da819d3491..e2fe6f96c4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.editor.mps
@@ -32,7 +32,7 @@
       </concept>
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1139848536355" name="jetbrains.mps.lang.editor.structure.CellModel_WithRole" flags="ng" index="1$h60E">
@@ -48,7 +48,7 @@
       <concept id="1073389577006" name="jetbrains.mps.lang.editor.structure.CellModel_Constant" flags="sn" stub="3610246225209162225" index="3F0ifn">
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -80,7 +80,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.intentions.mps
index dd97d19096..a3e49cbb10 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.intentions.mps
@@ -63,7 +63,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.structure.mps
index 2adf42f378..6c7974ed64 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.structure.mps
@@ -35,7 +35,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.typesystem.mps
index 9e2a360985..d0cca1d937 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/models/org.iets3.core.expr.query.typesystem.mps
@@ -65,7 +65,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -140,7 +140,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/org.iets3.core.expr.query.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/org.iets3.core.expr.query.mpl
index 68f30e1baf..1f2a7328e1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/org.iets3.core.expr.query.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.query/org.iets3.core.expr.query.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">10e056b2-49fd-40ca-8b64-de69c81163ac(org.iets3.core.expr.query)</dependency>
     <dependency reexport="false">dbe08fb5-334d-4b64-86a0-622406fa0e87(org.iets3.core.expr.base.runtime)</dependency>
@@ -24,7 +23,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/generator/template/main@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/generator/template/main@generator.mps
index ba36865c9e..16f703806e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/generator/template/main@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/generator/template/main@generator.mps
@@ -18,7 +18,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/intentions.mps
index 6a5e47fe3f..ece9559543 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/intentions.mps
@@ -118,7 +118,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -133,7 +133,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -145,6 +145,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -283,7 +284,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -306,7 +307,6 @@
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -1124,7 +1124,7 @@
                   <node concept="3clFbF" id="5avmkTFRv4s" role="3cqZAp">
                     <node concept="2OqwBi" id="5avmkTFRvkb" role="3clFbG">
                       <node concept="37vLTw" id="5avmkTFRv4r" role="2Oq$k0">
-                        <ref role="3cqZAo" node="5avmkTFRuQC" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817dx" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="5avmkTFRvEf" role="2OqNvi">
                         <node concept="25Kdxt" id="5avmkTFRwgh" role="cj9EA">
@@ -1134,9 +1134,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5avmkTFRuQC" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817dx" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5avmkTFRuQD" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817dy" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1174,7 +1174,7 @@
                         <node concept="3clFbF" id="5avmkTFRDpq" role="3cqZAp">
                           <node concept="2OqwBi" id="5avmkTFRDpr" role="3clFbG">
                             <node concept="37vLTw" id="5avmkTFRDps" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5avmkTFRDpw" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817dz" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="5avmkTFRDpt" role="2OqNvi">
                               <node concept="25Kdxt" id="5avmkTFRDpu" role="cj9EA">
@@ -1184,9 +1184,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5avmkTFRDpw" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817dz" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5avmkTFRDpx" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817d$" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1197,15 +1197,15 @@
                       <node concept="3clFbF" id="5avmkTFRE6n" role="3cqZAp">
                         <node concept="2OqwBi" id="5avmkTFREiX" role="3clFbG">
                           <node concept="37vLTw" id="5avmkTFRE6m" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5avmkTFRDZA" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817d_" resolve="it" />
                           </node>
                           <node concept="3YRAZt" id="5avmkTFRE_A" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5avmkTFRDZA" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817d_" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5avmkTFRDZB" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817dA" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1225,7 +1225,7 @@
                   <node concept="3clFbF" id="5avmkTFR$Mf" role="3cqZAp">
                     <node concept="2OqwBi" id="5avmkTFR$Mg" role="3clFbG">
                       <node concept="37vLTw" id="5avmkTFR$Mh" role="2Oq$k0">
-                        <ref role="3cqZAo" node="5avmkTFR$Ml" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817dB" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="5avmkTFR$Mi" role="2OqNvi">
                         <node concept="25Kdxt" id="5avmkTFR$Mj" role="cj9EA">
@@ -1235,9 +1235,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5avmkTFR$Ml" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817dB" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5avmkTFR$Mm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817dC" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1293,7 +1293,7 @@
                       <node concept="3fqX7Q" id="5avmkTFS_na" role="3clFbG">
                         <node concept="2OqwBi" id="5avmkTFS_nc" role="3fr31v">
                           <node concept="37vLTw" id="5avmkTFS_nd" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5avmkTFSe6E" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dD" resolve="it" />
                           </node>
                           <node concept="liA8E" id="5avmkTFS_ne" role="2OqNvi">
                             <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -1302,9 +1302,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5avmkTFSe6E" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817dD" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5avmkTFSe6F" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817dE" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1975,7 +1975,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="48DDwlwZ$xM" role="3uHU7B">
                                         <node concept="37vLTw" id="48DDwlwZ$gA" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="48DDwlwZ$6v" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817dF" resolve="it" />
                                         </node>
                                         <node concept="3TrcHB" id="48DDwlwZ$XD" role="2OqNvi">
                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1984,9 +1984,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="48DDwlwZ$6v" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817dF" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="48DDwlwZ$6w" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817dG" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -2073,15 +2073,15 @@
                                       <node concept="3clFbF" id="48DDwlx19_b" role="3cqZAp">
                                         <node concept="2OqwBi" id="48DDwlx19QG" role="3clFbG">
                                           <node concept="37vLTw" id="48DDwlx19_7" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="48DDwlx14WP" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817dH" resolve="it" />
                                           </node>
                                           <node concept="1$rogu" id="48DDwlx1acZ" role="2OqNvi" />
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="48DDwlx14WP" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX817dH" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="48DDwlx14WQ" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX817dI" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org.iets3.core.expr.repl.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org.iets3.core.expr.repl.migration.mps
index 5c63d107cc..2c5e4827f4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org.iets3.core.expr.repl.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org.iets3.core.expr.repl.migration.mps
@@ -28,7 +28,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/behavior.mps
index 0fb71e5e12..ba418cac06 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/behavior.mps
@@ -152,7 +152,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1092119917967" name="jetbrains.mps.baseLanguage.structure.MulExpression" flags="nn" index="17qRlL" />
@@ -218,7 +218,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -246,7 +246,7 @@
         <child id="8276990574909234106" name="finallyBody" index="1wplMD" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -274,6 +274,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -360,7 +361,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -397,7 +398,6 @@
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -467,7 +467,7 @@
                     <node concept="3y3z36" id="2HpFPvT8riC" role="3clFbG">
                       <node concept="2OqwBi" id="2HpFPvT8qel" role="3uHU7B">
                         <node concept="37vLTw" id="2HpFPvT8qem" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2HpFPvT8qeo" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cL" resolve="it" />
                         </node>
                         <node concept="2yIwOk" id="2HpFPvT8qen" role="2OqNvi" />
                       </node>
@@ -477,9 +477,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2HpFPvT8qeo" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cL" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2HpFPvT8qep" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817cM" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -556,7 +556,7 @@
                         <node concept="3fqX7Q" id="2HpFPvTa_JR" role="3clFbG">
                           <node concept="2OqwBi" id="2HpFPvTa_Uj" role="3fr31v">
                             <node concept="37vLTw" id="2HpFPvTa_JY" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2HpFPvTa_$Z" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817cN" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="2HpFPvTaAgl" role="2OqNvi">
                               <node concept="chp4Y" id="2HpFPvTaAvn" role="cj9EA">
@@ -567,9 +567,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2HpFPvTa_$Z" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817cN" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2HpFPvTa__0" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817cO" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1494,7 +1494,7 @@
                     <node concept="3fqX7Q" id="2HpFPvT64XY" role="3clFbG">
                       <node concept="2OqwBi" id="2HpFPvT64Y0" role="3fr31v">
                         <node concept="37vLTw" id="2HpFPvT64Y1" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2HpFPvT63TC" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cP" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="2HpFPvT64Y2" role="2OqNvi">
                           <node concept="chp4Y" id="2HpFPvT64Y3" role="cj9EA">
@@ -1505,9 +1505,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2HpFPvT63TC" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cP" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2HpFPvT63TD" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817cQ" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1986,7 +1986,7 @@
                         <node concept="2OqwBi" id="4Pi6J8Cbqvd" role="3uHU7B">
                           <node concept="2OqwBi" id="4Pi6J8Cbqve" role="2Oq$k0">
                             <node concept="37vLTw" id="4Pi6J8Cbqvf" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4Pi6J8Cbqvj" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817cR" resolve="it" />
                             </node>
                             <node concept="liA8E" id="4Pi6J8Cbqvg" role="2OqNvi">
                               <ref role="37wK5l" to="exr9:~EditorComponent.getRootCell()" resolve="getRootCell" />
@@ -2000,9 +2000,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4Pi6J8Cbqvj" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817cR" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4Pi6J8Cbqvk" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817cS" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2013,7 +2013,7 @@
                   <node concept="3clFbF" id="4Pi6J8Cbqvo" role="3cqZAp">
                     <node concept="2OqwBi" id="4Pi6J8Cbqvp" role="3clFbG">
                       <node concept="37vLTw" id="4Pi6J8Cbqvq" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4Pi6J8Cbqvs" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817cT" resolve="it" />
                       </node>
                       <node concept="liA8E" id="4Pi6J8Cbqvr" role="2OqNvi">
                         <ref role="37wK5l" to="exr9:~EditorComponent.update()" resolve="update" />
@@ -2021,9 +2021,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4Pi6J8Cbqvs" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cT" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4Pi6J8Cbqvt" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817cU" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2343,7 +2343,7 @@
                       </node>
                       <node concept="2OqwBi" id="4nY0kF8p1bO" role="33vP2m">
                         <node concept="37vLTw" id="4nY0kF8p13e" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4nY0kF8p0VT" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817cV" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="2jITtfD_TC7" role="2OqNvi">
                           <ref role="37wK5l" node="4nY0kF8seDJ" resolve="evaluateEntryWithDownstreamUpdates" />
@@ -2352,9 +2352,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4nY0kF8p0VT" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817cV" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4nY0kF8p0VU" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817cW" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2396,16 +2396,16 @@
                           </node>
                           <node concept="2OqwBi" id="4nY0kF8oYLk" role="3uHU7B">
                             <node concept="37vLTw" id="4nY0kF8oYLl" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4nY0kF8oYLn" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817cX" resolve="it" />
                             </node>
                             <node concept="2bSWHS" id="4nY0kF8oYLm" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4nY0kF8oYLn" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817cX" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4nY0kF8oYLo" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817cY" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2430,7 +2430,7 @@
                     <node concept="2OqwBi" id="4nY0kF8oMxB" role="3clFbG">
                       <node concept="2OqwBi" id="4nY0kF8oIER" role="2Oq$k0">
                         <node concept="37vLTw" id="4nY0kF8oIuG" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4nY0kF8oIu$" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817d3" resolve="it" />
                         </node>
                         <node concept="2Rf3mk" id="4nY0kF8oJgA" role="2OqNvi">
                           <node concept="1xMEDy" id="4nY0kF8oJgC" role="1xVPHs">
@@ -2448,7 +2448,7 @@
                                 <node concept="3clFbC" id="4nY0kF8oSDR" role="3uHU7B">
                                   <node concept="2OqwBi" id="4nY0kF8oRNO" role="3uHU7B">
                                     <node concept="37vLTw" id="4nY0kF8oRyV" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4nY0kF8oRrU" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817d1" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="4nY0kF8oS7Z" role="2OqNvi">
                                       <ref role="3Tt5mk" to="wtll:2HpFPvT9Hfy" resolve="entry" />
@@ -2459,7 +2459,7 @@
                                 <node concept="2OqwBi" id="4nY0kF8oTzQ" role="3uHU7w">
                                   <node concept="2OqwBi" id="4nY0kF8oTzR" role="2Oq$k0">
                                     <node concept="37vLTw" id="4nY0kF8oTzS" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4nY0kF8oRrU" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817d1" resolve="it" />
                                     </node>
                                     <node concept="2Rf3mk" id="4nY0kF8oTzT" role="2OqNvi">
                                       <node concept="1xMEDy" id="4nY0kF8oTzU" role="1xVPHs">
@@ -2476,7 +2476,7 @@
                                           <node concept="3clFbC" id="4nY0kF8oT$1" role="3clFbG">
                                             <node concept="2OqwBi" id="4nY0kF8oT$2" role="3uHU7B">
                                               <node concept="37vLTw" id="4nY0kF8oT$3" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="4nY0kF8oT$6" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817cZ" resolve="it" />
                                               </node>
                                               <node concept="3TrEf2" id="4nY0kF8oT$4" role="2OqNvi">
                                                 <ref role="3Tt5mk" to="wtll:5nEyPbMpXeg" resolve="entry" />
@@ -2486,9 +2486,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="4nY0kF8oT$6" role="1bW2Oz">
+                                      <node concept="gl6BB" id="4z0AnX817cZ" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="4nY0kF8oT$7" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="4z0AnX817d0" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -2496,18 +2496,18 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="4nY0kF8oRrU" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817d1" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="4nY0kF8oRrV" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817d2" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4nY0kF8oIu$" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817d3" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4nY0kF8oIu_" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817d4" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2784,10 +2784,10 @@
           <node concept="3cpWsn" id="7obiejCzImH" role="3cpWs9">
             <property role="TrG5h" value="coverage" />
             <node concept="3uibUv" id="7obiejCzImI" role="1tU5fm">
-              <ref role="3uigEE" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+              <ref role="3uigEE" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             </node>
             <node concept="2ShNRf" id="7obiejCzImJ" role="33vP2m">
-              <node concept="1pGfFk" id="74LepNSq2fB" role="2ShVmc">
+              <node concept="1pGfFk" id="7LZDtvhxUZ5" role="2ShVmc">
                 <ref role="37wK5l" to="pbu6:7ezRWquAAWk" resolve="DefaultCoverageAnalyzer" />
               </node>
             </node>
@@ -2832,7 +2832,7 @@
                       <node concept="10Nm6u" id="5xEoEMrw83M" role="3uHU7w" />
                       <node concept="2OqwBi" id="5xEoEMrw7m3" role="3uHU7B">
                         <node concept="37vLTw" id="5xEoEMrw7aa" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5xEoEMrw75P" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817d5" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="5xEoEMrw7yM" role="2OqNvi">
                           <ref role="3Tt5mk" to="wtll:5xEoEMrmiVo" resolve="expr" />
@@ -2841,9 +2841,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5xEoEMrw75P" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817d5" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5xEoEMrw75Q" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817d6" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2980,7 +2980,7 @@
                       <node concept="10Nm6u" id="5avmkTFFJeI" role="3uHU7w" />
                       <node concept="2OqwBi" id="5avmkTFFJeJ" role="3uHU7B">
                         <node concept="37vLTw" id="5avmkTFFJeK" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5avmkTFFJeM" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817d7" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="5avmkTFFJeL" role="2OqNvi">
                           <ref role="3Tt5mk" to="wtll:5xEoEMrmiVo" resolve="expr" />
@@ -2989,9 +2989,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5avmkTFFJeM" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817d7" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5avmkTFFJeN" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817d8" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3495,15 +3495,15 @@
                               <node concept="3clFbF" id="7HzLUeHEjNL" role="3cqZAp">
                                 <node concept="2OqwBi" id="7HzLUeHEjNM" role="3clFbG">
                                   <node concept="37vLTw" id="7HzLUeHEjNN" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="7HzLUeHEjNP" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817d9" resolve="it" />
                                   </node>
                                   <node concept="1$rogu" id="7HzLUeHEjNO" role="2OqNvi" />
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="7HzLUeHEjNP" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817d9" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="7HzLUeHEjNQ" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817da" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -3641,15 +3641,15 @@
                               <node concept="3clFbF" id="56SqGtkTGK7" role="3cqZAp">
                                 <node concept="2OqwBi" id="56SqGtkTGK8" role="3clFbG">
                                   <node concept="37vLTw" id="56SqGtkTGK9" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="56SqGtkTGKb" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817db" resolve="it" />
                                   </node>
                                   <node concept="1$rogu" id="56SqGtkTGKa" role="2OqNvi" />
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="56SqGtkTGKb" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817db" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="56SqGtkTGKc" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817dc" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -5316,52 +5316,44 @@
           </node>
         </node>
         <node concept="3clFbF" id="5avmkTFFTi$" role="3cqZAp">
-          <node concept="37vLTI" id="5avmkTFFVJn" role="3clFbG">
-            <node concept="2OqwBi" id="5avmkTFFUh0" role="37vLTJ">
-              <node concept="37vLTw" id="5avmkTFFTiy" role="2Oq$k0">
-                <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="5avmkTFFUZW" role="2OqNvi">
-                <ref role="2Oxat5" to="xk6s:ub9nkyOIfW" resolve="ok" />
-              </node>
+          <node concept="2OqwBi" id="5avmkTFFUh0" role="3clFbG">
+            <node concept="37vLTw" id="5avmkTFFTiy" role="2Oq$k0">
+              <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
             </node>
-            <node concept="3clFbT" id="5avmkTFFZVb" role="37vLTx">
-              <property role="3clFbU" value="true" />
+            <node concept="liA8E" id="7LZDtvgNwQW" role="2OqNvi">
+              <ref role="37wK5l" to="xk6s:7LZDtvgGFoC" resolve="setOk" />
+              <node concept="3clFbT" id="7LZDtvgNxar" role="37wK5m">
+                <property role="3clFbU" value="true" />
+              </node>
             </node>
           </node>
         </node>
         <node concept="3clFbJ" id="5avmkTFG1kI" role="3cqZAp">
           <node concept="3clFbS" id="5avmkTFG1kK" role="3clFbx">
             <node concept="3clFbF" id="5avmkTFG2K7" role="3cqZAp">
-              <node concept="37vLTI" id="5avmkTFG2K8" role="3clFbG">
-                <node concept="2OqwBi" id="5avmkTFG2K9" role="37vLTJ">
-                  <node concept="37vLTw" id="5avmkTFG2Ka" role="2Oq$k0">
-                    <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                  </node>
-                  <node concept="2OwXpG" id="5avmkTFG2Kb" role="2OqNvi">
-                    <ref role="2Oxat5" to="xk6s:ub9nkyOIfW" resolve="ok" />
-                  </node>
+              <node concept="2OqwBi" id="5avmkTFG2K9" role="3clFbG">
+                <node concept="37vLTw" id="5avmkTFG2Ka" role="2Oq$k0">
+                  <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                 </node>
-                <node concept="3clFbT" id="5avmkTFG4lk" role="37vLTx">
-                  <property role="3clFbU" value="false" />
+                <node concept="liA8E" id="7LZDtvgNyGs" role="2OqNvi">
+                  <ref role="37wK5l" to="xk6s:7LZDtvgGFoC" resolve="setOk" />
+                  <node concept="3clFbT" id="7LZDtvgNyXu" role="37wK5m" />
                 </node>
               </node>
             </node>
             <node concept="3clFbF" id="5avmkTFG4SE" role="3cqZAp">
-              <node concept="37vLTI" id="5avmkTFG6n8" role="3clFbG">
-                <node concept="2OqwBi" id="5avmkTFG50S" role="37vLTJ">
-                  <node concept="37vLTw" id="5avmkTFG4SC" role="2Oq$k0">
-                    <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                  </node>
-                  <node concept="2OwXpG" id="5avmkTFG5qR" role="2OqNvi">
-                    <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="2LEfNl_HN1a" role="37vLTx">
-                  <node concept="1pGfFk" id="2LEfNl_HX85" role="2ShVmc">
-                    <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                    <node concept="Xl_RD" id="5avmkTFG6oe" role="37wK5m">
-                      <property role="Xl_RC" value="some cells failed" />
+              <node concept="2OqwBi" id="5avmkTFG50S" role="3clFbG">
+                <node concept="37vLTw" id="5avmkTFG4SC" role="2Oq$k0">
+                  <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
+                </node>
+                <node concept="liA8E" id="7LZDtvgNzdB" role="2OqNvi">
+                  <ref role="37wK5l" to="xk6s:7LZDtvgGLQm" resolve="setErrorMessage" />
+                  <node concept="2ShNRf" id="2LEfNl_HN1a" role="37wK5m">
+                    <node concept="1pGfFk" id="2LEfNl_HX85" role="2ShVmc">
+                      <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                      <node concept="Xl_RD" id="5avmkTFG6oe" role="37wK5m">
+                        <property role="Xl_RC" value="some cells failed" />
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -5391,21 +5383,19 @@
           </node>
         </node>
         <node concept="3clFbF" id="ub9nkyOKa8" role="3cqZAp">
-          <node concept="37vLTI" id="ub9nkyOKnZ" role="3clFbG">
-            <node concept="3cpWsd" id="ub9nkyOKvq" role="37vLTx">
-              <node concept="37vLTw" id="ub9nkyOKy7" role="3uHU7w">
-                <ref role="3cqZAo" node="ub9nkyOJg4" resolve="begin" />
-              </node>
-              <node concept="37vLTw" id="ub9nkyOKpK" role="3uHU7B">
-                <ref role="3cqZAo" node="ub9nkyOJHG" resolve="end" />
-              </node>
+          <node concept="2OqwBi" id="ub9nkyOKeS" role="3clFbG">
+            <node concept="37vLTw" id="ub9nkyOKa6" role="2Oq$k0">
+              <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
             </node>
-            <node concept="2OqwBi" id="ub9nkyOKeS" role="37vLTJ">
-              <node concept="37vLTw" id="ub9nkyOKa6" role="2Oq$k0">
-                <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="ub9nkyOKgB" role="2OqNvi">
-                <ref role="2Oxat5" to="xk6s:ub9nkyOIgM" resolve="time" />
+            <node concept="liA8E" id="7LZDtvgNzTk" role="2OqNvi">
+              <ref role="37wK5l" to="xk6s:7LZDtvgGLwA" resolve="setTime" />
+              <node concept="3cpWsd" id="ub9nkyOKvq" role="37wK5m">
+                <node concept="37vLTw" id="ub9nkyOKy7" role="3uHU7w">
+                  <ref role="3cqZAo" node="ub9nkyOJg4" resolve="begin" />
+                </node>
+                <node concept="37vLTw" id="ub9nkyOKpK" role="3uHU7B">
+                  <ref role="3cqZAo" node="ub9nkyOJHG" resolve="end" />
+                </node>
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/constraints.mps
index fb120d2bd9..fa89e72204 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/constraints.mps
@@ -82,7 +82,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -122,6 +122,7 @@
       <concept id="1153138554286" name="jetbrains.mps.lang.constraints.structure.ConstraintsFunctionParameter_propertyValue" flags="nn" index="1Wqviy" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -166,7 +167,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -185,7 +186,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
     </language>
   </registry>
@@ -320,14 +320,14 @@
                             <ref role="3cqZAo" node="1F1F0IUZA$C" resolve="de" />
                           </node>
                           <node concept="37vLTw" id="2QxWJFK_2kG" role="3uHU7B">
-                            <ref role="3cqZAo" node="2QxWJFK_2kH" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dd" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2QxWJFK_2kH" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dd" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2QxWJFK_2kI" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817de" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -353,16 +353,16 @@
                           </node>
                           <node concept="2OqwBi" id="5nEyPbMspdH" role="3uHU7B">
                             <node concept="37vLTw" id="5nEyPbMspdI" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5nEyPbMspdK" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817df" resolve="it" />
                             </node>
                             <node concept="2bSWHS" id="5nEyPbMspdJ" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5nEyPbMspdK" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817df" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5nEyPbMspdL" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817dg" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -386,7 +386,7 @@
                       <node concept="3clFbF" id="2QxWJFK_3Pw" role="3cqZAp">
                         <node concept="2OqwBi" id="2QxWJFK_RIT" role="3clFbG">
                           <node concept="37vLTw" id="2QxWJFK_RwW" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2QxWJFK_3Fv" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dh" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="2QxWJFK_Swi" role="2OqNvi">
                             <ref role="37wK5l" to="31n1:2QxWJFK_S9T" resolve="isReferenceable" />
@@ -394,9 +394,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2QxWJFK_3Fv" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dh" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2QxWJFK_3Fw" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817di" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -466,14 +466,14 @@
                             <ref role="3cqZAo" node="5nEyPbMpXLD" resolve="de" />
                           </node>
                           <node concept="37vLTw" id="5nEyPbMpXM4" role="3uHU7B">
-                            <ref role="3cqZAo" node="5nEyPbMpXM5" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dj" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5nEyPbMpXM5" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dj" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5nEyPbMpXM6" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817dk" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -499,16 +499,16 @@
                           </node>
                           <node concept="2OqwBi" id="5nEyPbMslcc" role="3uHU7B">
                             <node concept="37vLTw" id="5nEyPbMskUg" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5nEyPbMskFl" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817dl" resolve="it" />
                             </node>
                             <node concept="2bSWHS" id="5nEyPbMslzQ" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5nEyPbMskFl" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dl" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5nEyPbMskFm" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817dm" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -533,7 +533,7 @@
                         <node concept="3clFbF" id="5nEyPbMpXMe" role="3cqZAp">
                           <node concept="2OqwBi" id="5nEyPbMpXMf" role="3clFbG">
                             <node concept="37vLTw" id="5nEyPbMpXMg" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5nEyPbMpXMi" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817dn" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="5nEyPbMpXMh" role="2OqNvi">
                               <ref role="37wK5l" to="31n1:2QxWJFK_S9T" resolve="isReferenceable" />
@@ -541,9 +541,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5nEyPbMpXMi" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817dn" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5nEyPbMpXMj" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817do" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -556,7 +556,7 @@
                           <node concept="10Nm6u" id="5nEyPbMq2i7" role="3uHU7w" />
                           <node concept="2OqwBi" id="5nEyPbMq12T" role="3uHU7B">
                             <node concept="37vLTw" id="5nEyPbMq0MC" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5nEyPbMpZMe" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817dp" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="5nEyPbMq1pc" role="2OqNvi">
                               <ref role="3TsBF5" to="wtll:2QxWJFKDebM" resolve="optionalName" />
@@ -565,9 +565,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5nEyPbMpZMe" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dp" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5nEyPbMpZMf" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817dq" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -842,7 +842,7 @@
                       <node concept="3clFbF" id="3pIANU_0L_X" role="3cqZAp">
                         <node concept="2OqwBi" id="3pIANU_0LV2" role="3clFbG">
                           <node concept="37vLTw" id="3pIANU_0L_W" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3pIANU_0LpD" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dr" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="3pIANU_0Mr0" role="2OqNvi">
                             <ref role="3TsBF5" to="wtll:3pIANU_03o9" resolve="template" />
@@ -850,9 +850,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3pIANU_0LpD" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dr" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3pIANU_0LpE" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817ds" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -931,7 +931,7 @@
                         <node concept="3fqX7Q" id="3pIANU_3nK6" role="3clFbG">
                           <node concept="2OqwBi" id="3pIANU_3nK8" role="3fr31v">
                             <node concept="37vLTw" id="3pIANU_3nK9" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3pIANU_3npy" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817dt" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="3pIANU_3nKa" role="2OqNvi">
                               <ref role="3TsBF5" to="wtll:3pIANU_03o9" resolve="template" />
@@ -940,9 +940,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3pIANU_3npy" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dt" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3pIANU_3npz" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817du" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/editor.mps
index 85cb85a7f3..b0462e396e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/editor.mps
@@ -46,7 +46,7 @@
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
       <concept id="5991739802479784074" name="jetbrains.mps.lang.editor.structure.MenuTypeNamed" flags="ng" index="22hDWg" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -119,7 +119,7 @@
       <concept id="1164996492011" name="jetbrains.mps.lang.editor.structure.CellMenuPart_ReferentPrimary" flags="ng" index="ZcVJ$">
         <child id="6918029743851332884" name="matchingText" index="1NQq9M" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -141,7 +141,7 @@
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -175,7 +175,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -188,7 +188,7 @@
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
       <concept id="5624877018226900666" name="jetbrains.mps.lang.editor.structure.TransformationMenu" flags="ng" index="3ICUPy" />
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="6918029743850363447" name="jetbrains.mps.lang.editor.structure.ConceptFunctionParameter_targetNode" flags="ng" index="1NM5Ph" />
@@ -249,7 +249,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -309,7 +309,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -370,7 +370,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -392,7 +392,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -423,6 +423,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -435,7 +436,7 @@
         <child id="8945098465480008160" name="transformationText" index="ZWbT9" />
       </concept>
       <concept id="8945098465480383073" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell_TransformationText" flags="ig" index="ZYGn8" />
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G" />
@@ -553,7 +554,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="779128492853369165" name="jetbrains.mps.lang.core.structure.SideTransformInfo" flags="ng" index="1KehLL">
@@ -578,7 +579,6 @@
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
@@ -5033,7 +5033,7 @@
                                 <node concept="3clFbF" id="3_Nra3E9qVw" role="3cqZAp">
                                   <node concept="2OqwBi" id="3_Nra3E9rfq" role="3clFbG">
                                     <node concept="37vLTw" id="3_Nra3E9qVv" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3_Nra3E9q_e" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817dv" resolve="it" />
                                     </node>
                                     <node concept="1mIQ4w" id="3_Nra3E9sJo" role="2OqNvi">
                                       <node concept="chp4Y" id="3_Nra3E9tk9" role="cj9EA">
@@ -5043,9 +5043,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3_Nra3E9q_e" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817dv" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="3_Nra3E9q_f" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817dw" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/structure.mps
index e61df5de22..4e3909a230 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/structure.mps
@@ -59,7 +59,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/typesystem.mps
index 987c9067bc..ad18a8d738 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/org/iets3/core/expr/repl/typesystem.mps
@@ -68,7 +68,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -113,7 +113,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -131,6 +131,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -251,7 +252,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -273,7 +274,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -1106,7 +1106,7 @@
                       <node concept="3clFbF" id="48DDwlwVDVw" role="3cqZAp">
                         <node concept="2OqwBi" id="48DDwlwVDVx" role="3clFbG">
                           <node concept="37vLTw" id="48DDwlwVDVy" role="2Oq$k0">
-                            <ref role="3cqZAo" node="48DDwlwVDV$" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dJ" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="48DDwlwVDVz" role="2OqNvi">
                             <ref role="3TsBF5" to="wtll:48DDwlwUXpx" resolve="result" />
@@ -1114,9 +1114,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="48DDwlwVDV$" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817dJ" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="48DDwlwVDV_" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817dK" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1550,20 +1550,20 @@
     <property role="TrG5h" value="typeof_LabelExpression" />
     <property role="3GE5qa" value="sheet" />
     <node concept="3clFbS" id="7HzLUeHoJVa" role="18ibNy">
-      <node concept="1Z5TYs" id="7HzLUeHoK9M" role="3cqZAp">
-        <node concept="mw_s8" id="7HzLUeHoKa3" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrC" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="7HzLUeHoK9P" role="1ZfhK$">
-          <node concept="1Z2H0r" id="7HzLUeHoJVj" role="mwGJk">
-            <node concept="1YBJjd" id="7HzLUeHoJVz" role="1Z2MuG">
+      <node concept="1ZobV4" id="hTGlT9G0MY" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9G0N2" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9G0N3" role="mwGJk">
+            <node concept="1YBJjd" id="hTGlT9G0N4" role="1Z2MuG">
               <ref role="1YBMHb" node="7HzLUeHoJVc" resolve="le" />
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9G0N0" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9G0N1" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="7HzLUeHoJVc" role="1YuTPh">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/plugin.mps
index 90f82d00f2..5ee06a85cd 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="-1" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="-1" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
   <imports>
@@ -22,7 +22,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
@@ -81,7 +81,7 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -95,7 +95,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/org.iets3.core.expr.repl.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/org.iets3.core.expr.repl.mpl
index 75bbd425ae..f5c4140e46 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/org.iets3.core.expr.repl.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.repl/org.iets3.core.expr.repl.mpl
@@ -29,7 +29,7 @@
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -115,7 +115,6 @@
       </mapping-priorities>
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -150,7 +149,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -179,7 +178,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/behavior.mps
index e40f9c40a8..3afe3e6ff5 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/behavior.mps
@@ -171,7 +171,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -192,7 +192,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -211,6 +211,7 @@
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -294,7 +295,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -321,7 +322,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -3563,7 +3563,7 @@
                               </node>
                               <node concept="2OqwBi" id="5bB0DPkzfma" role="1m5AlR">
                                 <node concept="37vLTw" id="5bB0DPkzcoh" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5bB0DPkz5Sw" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817dL" resolve="it" />
                                 </node>
                                 <node concept="3JvlWi" id="5bB0DPk$VPe" role="2OqNvi" />
                               </node>
@@ -3571,9 +3571,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5bB0DPkz5Sw" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817dL" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5bB0DPkz5Sx" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817dM" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/structure.mps
index c3bcc1a065..5c76be4fad 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/models/structure.mps
@@ -26,7 +26,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/org.iets3.core.expr.simpleTypes.tests.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/org.iets3.core.expr.simpleTypes.tests.mpl
index 3a4744f0b5..f5be44686c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/org.iets3.core.expr.simpleTypes.tests.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes.tests/org.iets3.core.expr.simpleTypes.tests.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/behavior.mps
index cb7dad5c2a..3677da6892 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/behavior.mps
@@ -6,7 +6,7 @@
     <use id="daafa647-f1f7-4b0b-b096-69cd7c8408c0" name="jetbrains.mps.baseLanguage.regexp" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="-1" />
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="2" />
@@ -26,14 +26,8 @@
     <import index="kqnq" ref="r:7628c3bd-6988-4d33-9682-86b8cef4b8c0(com.mbeddr.mpsutil.interpreter.behavior)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
     <import index="87nw" ref="r:ca2ab6bb-f6e7-4c0f-a88c-b78b9b31fff3(de.slisson.mps.richtext.structure)" />
-    <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
-    <import index="pjrh" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.smodel.adapter(MPS.Core/)" />
-    <import index="lui2" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.module(MPS.OpenAPI/)" />
-    <import index="w1kc" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.smodel(MPS.Core/)" />
-    <import index="mhfm" ref="3f233e7f-b8a6-46d2-a57f-795d56775243/java:org.jetbrains.annotations(Annotations/)" />
-    <import index="cj4x" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor(MPS.Editor/)" />
-    <import index="tpce" ref="r:00000000-0000-4000-0000-011c89590292(jetbrains.mps.lang.structure.structure)" />
-    <import index="tpcn" ref="r:00000000-0000-4000-0000-011c8959028b(jetbrains.mps.lang.structure.behavior)" />
+    <import index="tpfs" ref="r:00000000-0000-4000-0000-011c89590514(jetbrains.mps.baseLanguage.regexp.behavior)" implicit="true" />
+    <import index="tpfo" ref="r:00000000-0000-4000-0000-011c89590518(jetbrains.mps.baseLanguage.regexp.structure)" implicit="true" />
   </imports>
   <registry>
     <language id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples">
@@ -7372,5 +7366,143 @@
       <node concept="17QB3L" id="5bvGQanjOYJ" role="3clF45" />
     </node>
   </node>
+  <node concept="13h7C7" id="2xPWNWpq33M">
+    <property role="3GE5qa" value="string" />
+    <ref role="13h7C2" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+    <node concept="13i0hz" id="6pSOa4rtvfE" role="13h7CS">
+      <property role="TrG5h" value="getPresentation" />
+      <ref role="13i0hy" to="tpcu:hEwIMiw" resolve="getPresentation" />
+      <node concept="3Tm1VV" id="6pSOa4rtvfF" role="1B3o_S" />
+      <node concept="3clFbS" id="6pSOa4rtvfM" role="3clF47">
+        <node concept="3cpWs8" id="6pSOa4rtwWh" role="3cqZAp">
+          <node concept="3cpWsn" id="6pSOa4rtwWi" role="3cpWs9">
+            <property role="TrG5h" value="builder" />
+            <node concept="3uibUv" id="6pSOa4rtwWj" role="1tU5fm">
+              <ref role="3uigEE" to="wyt6:~StringBuilder" resolve="StringBuilder" />
+            </node>
+            <node concept="2ShNRf" id="6pSOa4rtwW$" role="33vP2m">
+              <node concept="1pGfFk" id="6pSOa4rtxHo" role="2ShVmc">
+                <property role="373rjd" value="true" />
+                <ref role="37wK5l" to="wyt6:~StringBuilder.&lt;init&gt;()" resolve="StringBuilder" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="6pSOa4rtxIu" role="3cqZAp">
+          <node concept="2OqwBi" id="6pSOa4rtz34" role="3clFbG">
+            <node concept="37vLTw" id="6pSOa4rtxIs" role="2Oq$k0">
+              <ref role="3cqZAo" node="6pSOa4rtwWi" resolve="builder" />
+            </node>
+            <node concept="liA8E" id="6pSOa4rt$23" role="2OqNvi">
+              <ref role="37wK5l" to="wyt6:~StringBuilder.append(java.lang.String)" resolve="append" />
+              <node concept="Xl_RD" id="6pSOa4rt$2b" role="37wK5m">
+                <property role="Xl_RC" value="string" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbJ" id="6pSOa4rt_yl" role="3cqZAp">
+          <node concept="3clFbS" id="6pSOa4rt_yn" role="3clFbx">
+            <node concept="3cpWs8" id="3g7FMHm$BvL" role="3cqZAp">
+              <node concept="3cpWsn" id="3g7FMHm$BvM" role="3cpWs9">
+                <property role="TrG5h" value="regex" />
+                <node concept="17QB3L" id="3g7FMHm$Arj" role="1tU5fm" />
+                <node concept="2OqwBi" id="3g7FMHm$BvN" role="33vP2m">
+                  <node concept="2OqwBi" id="3g7FMHm$BvO" role="2Oq$k0">
+                    <node concept="13iPFW" id="3g7FMHm$BvP" role="2Oq$k0" />
+                    <node concept="3TrEf2" id="3g7FMHm$BvQ" role="2OqNvi">
+                      <ref role="3Tt5mk" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+                    </node>
+                  </node>
+                  <node concept="2qgKlT" id="3g7FMHm$BvR" role="2OqNvi">
+                    <ref role="37wK5l" to="tpfs:hMuDF1A" resolve="getString" />
+                    <node concept="2ShNRf" id="3g7FMHm$BvS" role="37wK5m">
+                      <node concept="2T8Vx0" id="3g7FMHm$BvT" role="2ShVmc">
+                        <node concept="2I9FWS" id="3g7FMHm$BvU" role="2T96Bj">
+                          <ref role="2I9WkF" to="tpfo:h5Tukr7" resolve="MatchParensRegexp" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbJ" id="3g7FMHm$CN2" role="3cqZAp">
+              <node concept="3clFbS" id="3g7FMHm$CN4" role="3clFbx">
+                <node concept="3clFbF" id="6pSOa4rtFLa" role="3cqZAp">
+                  <node concept="2OqwBi" id="6pSOa4rtG58" role="3clFbG">
+                    <node concept="37vLTw" id="6pSOa4rtFL8" role="2Oq$k0">
+                      <ref role="3cqZAo" node="6pSOa4rtwWi" resolve="builder" />
+                    </node>
+                    <node concept="liA8E" id="6pSOa4rtG82" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~StringBuilder.append(java.lang.String)" resolve="append" />
+                      <node concept="Xl_RD" id="6pSOa4rtG84" role="37wK5m">
+                        <property role="Xl_RC" value="/" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbF" id="6pSOa4rtBl0" role="3cqZAp">
+                  <node concept="2OqwBi" id="6pSOa4rtCsi" role="3clFbG">
+                    <node concept="37vLTw" id="6pSOa4rtBkY" role="2Oq$k0">
+                      <ref role="3cqZAo" node="6pSOa4rtwWi" resolve="builder" />
+                    </node>
+                    <node concept="liA8E" id="6pSOa4rtDsP" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~StringBuilder.append(java.lang.String)" resolve="append" />
+                      <node concept="37vLTw" id="3g7FMHm$BvV" role="37wK5m">
+                        <ref role="3cqZAo" node="3g7FMHm$BvM" resolve="regex" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbF" id="6pSOa4rtGZ0" role="3cqZAp">
+                  <node concept="2OqwBi" id="6pSOa4rtH0Z" role="3clFbG">
+                    <node concept="37vLTw" id="6pSOa4rtGYY" role="2Oq$k0">
+                      <ref role="3cqZAo" node="6pSOa4rtwWi" resolve="builder" />
+                    </node>
+                    <node concept="liA8E" id="6pSOa4rtH6S" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~StringBuilder.append(java.lang.String)" resolve="append" />
+                      <node concept="Xl_RD" id="6pSOa4rtHbp" role="37wK5m">
+                        <property role="Xl_RC" value="/" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="2OqwBi" id="3g7FMHm$E5g" role="3clFbw">
+                <node concept="37vLTw" id="3g7FMHm$CN7" role="2Oq$k0">
+                  <ref role="3cqZAo" node="3g7FMHm$BvM" resolve="regex" />
+                </node>
+                <node concept="17RvpY" id="3g7FMHm$FMD" role="2OqNvi" />
+              </node>
+            </node>
+          </node>
+          <node concept="2OqwBi" id="6pSOa4rtAmQ" role="3clFbw">
+            <node concept="2OqwBi" id="6pSOa4rt_Nw" role="2Oq$k0">
+              <node concept="13iPFW" id="6pSOa4rt_$0" role="2Oq$k0" />
+              <node concept="3TrEf2" id="6pSOa4rtAbG" role="2OqNvi">
+                <ref role="3Tt5mk" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+              </node>
+            </node>
+            <node concept="3x8VRR" id="6pSOa4rtABt" role="2OqNvi" />
+          </node>
+        </node>
+        <node concept="3cpWs6" id="6pSOa4rtHzh" role="3cqZAp">
+          <node concept="2OqwBi" id="6pSOa4rtHNM" role="3cqZAk">
+            <node concept="37vLTw" id="6pSOa4rtHzx" role="2Oq$k0">
+              <ref role="3cqZAo" node="6pSOa4rtwWi" resolve="builder" />
+            </node>
+            <node concept="liA8E" id="6pSOa4rtHS3" role="2OqNvi">
+              <ref role="37wK5l" to="wyt6:~StringBuilder.toString()" resolve="toString" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="17QB3L" id="6pSOa4rtvfN" role="3clF45" />
+    </node>
+    <node concept="13hLZK" id="2xPWNWpq33N" role="13h7CW">
+      <node concept="3clFbS" id="2xPWNWpq33O" role="2VODD2" />
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/constraints.mps
index 73eb22a7bf..debd64a88c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/constraints.mps
@@ -20,6 +20,7 @@
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
+    <import index="tpfo" ref="r:00000000-0000-4000-0000-011c89590518(jetbrains.mps.baseLanguage.regexp.structure)" implicit="true" />
   </imports>
   <registry>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
@@ -152,8 +153,10 @@
     </language>
     <language id="3f4bc5f5-c6c1-4a28-8b10-c83066ffa4a1" name="jetbrains.mps.lang.constraints">
       <concept id="6702802731807351367" name="jetbrains.mps.lang.constraints.structure.ConstraintFunction_CanBeAChild" flags="in" index="9S07l" />
+      <concept id="6702802731807424858" name="jetbrains.mps.lang.constraints.structure.ConstraintFunction_CanBeAnAncestor" flags="in" index="9SQb8" />
       <concept id="1202989658459" name="jetbrains.mps.lang.constraints.structure.ConstraintFunctionParameter_parentNode" flags="nn" index="nLn13" />
       <concept id="4303308395523343364" name="jetbrains.mps.lang.constraints.structure.ConstraintFunctionParameter_link" flags="ng" index="2DA6wF" />
+      <concept id="4303308395523096213" name="jetbrains.mps.lang.constraints.structure.ConstraintFunctionParameter_childConcept" flags="ng" index="2DD5aU" />
       <concept id="1147467115080" name="jetbrains.mps.lang.constraints.structure.NodePropertyConstraint" flags="ng" index="EnEH3">
         <reference id="1147467295099" name="applicableProperty" index="EomxK" />
         <child id="1147468630220" name="propertyGetter" index="EtsB7" />
@@ -166,6 +169,7 @@
       <concept id="1152959968041" name="jetbrains.mps.lang.constraints.structure.ConstraintFunction_PropertySetter" flags="in" index="1LLf8_" />
       <concept id="1213093968558" name="jetbrains.mps.lang.constraints.structure.ConceptConstraints" flags="ng" index="1M2fIO">
         <reference id="1213093996982" name="concept" index="1M2myG" />
+        <child id="6702802731807532730" name="canBeAncestor" index="9SGkC" />
         <child id="6702802731807737306" name="canBeChild" index="9Vyp8" />
         <child id="1213098023997" name="property" index="1MhHOB" />
       </concept>
@@ -184,6 +188,9 @@
         <child id="3906496115198199033" name="conceptArgument" index="3oSUPX" />
       </concept>
       <concept id="1171407110247" name="jetbrains.mps.lang.smodel.structure.Node_GetAncestorOperation" flags="nn" index="2Xjw5R" />
+      <concept id="1180031783296" name="jetbrains.mps.lang.smodel.structure.Concept_IsSubConceptOfOperation" flags="nn" index="2Zo12i">
+        <child id="1180031783297" name="conceptArgument" index="2Zo12j" />
+      </concept>
       <concept id="2644386474302386080" name="jetbrains.mps.lang.smodel.structure.PropertyIdRefExpression" flags="nn" index="355D3s">
         <reference id="2644386474302386081" name="conceptDeclaration" index="355D3t" />
         <reference id="2644386474302386082" name="propertyDeclaration" index="355D3u" />
@@ -1331,5 +1338,25 @@
       </node>
     </node>
   </node>
+  <node concept="1M2fIO" id="46RgPUMwnoS">
+    <property role="3GE5qa" value="string" />
+    <ref role="1M2myG" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+    <node concept="9SQb8" id="46RgPUMwnoT" role="9SGkC">
+      <node concept="3clFbS" id="46RgPUMwnoU" role="2VODD2">
+        <node concept="3clFbF" id="46RgPUMwnA_" role="3cqZAp">
+          <node concept="3fqX7Q" id="46RgPUMwpON" role="3clFbG">
+            <node concept="2OqwBi" id="46RgPUMwpOP" role="3fr31v">
+              <node concept="2DD5aU" id="46RgPUMwpOQ" role="2Oq$k0" />
+              <node concept="2Zo12i" id="46RgPUMwpOR" role="2OqNvi">
+                <node concept="chp4Y" id="46RgPUMwpOS" role="2Zo12j">
+                  <ref role="cht4Q" to="tpfo:h5Tukr7" resolve="MatchParensRegexp" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/editor.mps
index ea689342a8..1de2f48742 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/editor.mps
@@ -21,7 +21,6 @@
     <import index="oq0c" ref="r:6c6155f0-4bbe-4af5-8c26-244d570e21e4(org.iets3.core.expr.base.plugin)" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
     <import index="buwp" ref="r:8405f486-53b5-4fe6-af3e-7f68358bd631(org.iets3.core.expr.base.editor)" />
-    <import index="hm2y" ref="r:66e07cb4-a4b0-4bf3-a36d-5e9ed1ff1bd3(org.iets3.core.expr.base.structure)" />
     <import index="gdgh" ref="r:e4d9478b-ae0e-416e-be60-73d136571015(org.iets3.core.base.behavior)" />
     <import index="f4zo" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor.cells(MPS.Editor/)" />
     <import index="g51k" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.nodeEditor.cells(MPS.Editor/)" />
@@ -31,7 +30,10 @@
     <import index="cj4x" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor(MPS.Editor/)" />
     <import index="4kwy" ref="r:657c9fde-2f36-4e61-ae17-20f02b8630ad(org.iets3.core.base.structure)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
+    <import index="hm2y" ref="r:66e07cb4-a4b0-4bf3-a36d-5e9ed1ff1bd3(org.iets3.core.expr.base.structure)" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" implicit="true" />
+    <import index="uddc" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor.menus.transformation(MPS.Editor/)" implicit="true" />
+    <import index="tpfo" ref="r:00000000-0000-4000-0000-011c89590518(jetbrains.mps.baseLanguage.regexp.structure)" implicit="true" />
   </imports>
   <registry>
     <language id="654422bf-e75f-44dc-936d-188890a746ce" name="de.slisson.mps.reflection">
@@ -40,6 +42,7 @@
       </concept>
     </language>
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
+      <concept id="1402906326895675325" name="jetbrains.mps.lang.editor.structure.CellActionMap_FunctionParm_selectedNode" flags="nn" index="0IXxy" />
       <concept id="5991739802479784074" name="jetbrains.mps.lang.editor.structure.MenuTypeNamed" flags="ng" index="22hDWg" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
       <concept id="1071666914219" name="jetbrains.mps.lang.editor.structure.ConceptEditorDeclaration" flags="ig" index="24kQdi" />
@@ -88,6 +91,7 @@
       <concept id="1186414536763" name="jetbrains.mps.lang.editor.structure.BooleanStyleSheetItem" flags="ln" index="VOi$J">
         <property id="1186414551515" name="flag" index="VOm3f" />
       </concept>
+      <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
       <concept id="1186414949600" name="jetbrains.mps.lang.editor.structure.AutoDeletableStyleClassItem" flags="ln" index="VPRnO" />
       <concept id="4647688914602775700" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_TransformationMenu_targetNode" flags="ng" index="X5bN_" />
       <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
@@ -117,6 +121,15 @@
         <child id="772883491827840107" name="customizeFunction" index="3l$a4r" />
       </concept>
       <concept id="7342352913006985500" name="jetbrains.mps.lang.editor.structure.TransformationLocation_Completion" flags="ng" index="3eGOoe" />
+      <concept id="1139535219966" name="jetbrains.mps.lang.editor.structure.CellActionMapDeclaration" flags="ig" index="1h_SRR">
+        <reference id="1139535219968" name="applicableConcept" index="1h_SK9" />
+        <child id="1139535219969" name="item" index="1h_SK8" />
+      </concept>
+      <concept id="1139535280617" name="jetbrains.mps.lang.editor.structure.CellActionMapItem" flags="lg" index="1hA7zw">
+        <property id="1139535298778" name="actionId" index="1hAc7j" />
+        <child id="1139535280620" name="executeFunction" index="1hA7z_" />
+      </concept>
+      <concept id="1139535439104" name="jetbrains.mps.lang.editor.structure.CellActionMap_ExecuteFunction" flags="in" index="1hAIg9" />
       <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
@@ -144,6 +157,7 @@
         <reference id="1140103550593" name="relationDeclaration" index="1NtTu8" />
       </concept>
       <concept id="1073389214265" name="jetbrains.mps.lang.editor.structure.EditorCellModel" flags="ng" index="3EYTF0">
+        <reference id="1139959269582" name="actionMap" index="1ERwB7" />
         <child id="1164826688380" name="menuDescriptor" index="P5bDN" />
         <child id="4202667662392416064" name="transformationMenu" index="3vIgyS" />
       </concept>
@@ -240,6 +254,9 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
+      <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
+        <property id="1068580123138" name="value" index="3clFbU" />
+      </concept>
       <concept id="1068580320020" name="jetbrains.mps.baseLanguage.structure.IntegerConstant" flags="nn" index="3cmrfG">
         <property id="1068580320021" name="value" index="3cmrfH" />
       </concept>
@@ -274,6 +291,7 @@
       <concept id="1381973545438177171" name="com.mbeddr.mpsutil.grammarcells.structure.NumberLiteralTokenizer" flags="ng" index="bYqod" />
       <concept id="1381973545438177151" name="com.mbeddr.mpsutil.grammarcells.structure.StringLiteralTokenizer" flags="ng" index="bYqrx" />
       <concept id="1984422498404534858" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell_TransformationText" flags="ig" index="2ee1ZP" />
+      <concept id="7272510943426093121" name="com.mbeddr.mpsutil.grammarcells.structure.Parameter_SideTransformActionsBuilderContext" flags="ng" index="2kS8pE" />
       <concept id="3921456275302774825" name="com.mbeddr.mpsutil.grammarcells.structure.SplittableCell" flags="sg" stub="3921456275302774831" index="2lNzut">
         <child id="3921456275305506525" name="tokenizer" index="2lD6_D" />
       </concept>
@@ -291,6 +309,14 @@
       <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
+      <concept id="4874944647490522665" name="com.mbeddr.mpsutil.grammarcells.structure.SideTransformationCell_IsApplicable" flags="ig" index="1eYwpX" />
+      <concept id="4874944647490524676" name="com.mbeddr.mpsutil.grammarcells.structure.SideTransformationCell_Execute" flags="ig" index="1eYxTg" />
+      <concept id="4874944647490471126" name="com.mbeddr.mpsutil.grammarcells.structure.SideTransformationCell" flags="ng" index="1eYWM2">
+        <child id="4874944647490523335" name="matchingText" index="1eYxyj" />
+        <child id="4874944647490523330" name="isApplicable" index="1eYxym" />
+        <child id="4874944647490524677" name="execute" index="1eYxTh" />
+      </concept>
+      <concept id="4874944647490471525" name="com.mbeddr.mpsutil.grammarcells.structure.SideTransformationCell_MatchingText" flags="ig" index="1eYWSL" />
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
         <child id="1954385921685817946" name="postprocessNodeSubstitute" index="31dnY" />
         <child id="1984422498404562223" name="rightTransformationText" index="2ee62g" />
@@ -309,6 +335,19 @@
         <child id="2490242408670937967" name="factoryMethod" index="3ZZHOD" />
       </concept>
     </language>
+    <language id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation">
+      <concept id="5455284157994012186" name="jetbrains.mps.lang.quotation.structure.NodeBuilderInitLink" flags="ng" index="2pIpSj">
+        <reference id="5455284157994012188" name="link" index="2pIpSl" />
+        <child id="1595412875168045827" name="initValue" index="28nt2d" />
+      </concept>
+      <concept id="5455284157993863837" name="jetbrains.mps.lang.quotation.structure.NodeBuilder" flags="nn" index="2pJPEk">
+        <child id="5455284157993863838" name="quotedNode" index="2pJPEn" />
+      </concept>
+      <concept id="5455284157993863840" name="jetbrains.mps.lang.quotation.structure.NodeBuilderNode" flags="nn" index="2pJPED">
+        <reference id="5455284157993910961" name="concept" index="2pJxaS" />
+        <child id="5455284157993911099" name="values" index="2pJxcM" />
+      </concept>
+    </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
       <concept id="1177026924588" name="jetbrains.mps.lang.smodel.structure.RefConcept_Reference" flags="nn" index="chp4Y">
         <reference id="1177026940964" name="conceptDeclaration" index="cht4Q" />
@@ -330,6 +369,9 @@
         <child id="1177027386292" name="conceptArgument" index="cj9EA" />
       </concept>
       <concept id="1144146199828" name="jetbrains.mps.lang.smodel.structure.Node_CopyOperation" flags="nn" index="1$rogu" />
+      <concept id="1139867745658" name="jetbrains.mps.lang.smodel.structure.Node_ReplaceWithNewOperation" flags="nn" index="1_qnLN">
+        <reference id="1139867957129" name="concept" index="1_rbq0" />
+      </concept>
       <concept id="1140131837776" name="jetbrains.mps.lang.smodel.structure.Node_ReplaceWithAnotherOperation" flags="nn" index="1P9Npp">
         <child id="1140131861877" name="replacementNode" index="1P9ThW" />
       </concept>
@@ -1828,5 +1870,161 @@
       </node>
     </node>
   </node>
+  <node concept="24kQdi" id="2xPWNWpoS4X">
+    <property role="3GE5qa" value="string" />
+    <ref role="1XX52x" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+    <node concept="3EZMnI" id="2xPWNWpoS6H" role="2wV5jI">
+      <node concept="2iRfu4" id="2xPWNWpoS6I" role="2iSdaV" />
+      <node concept="PMmxH" id="2xPWNWpoS6J" role="3EZMnx">
+        <ref role="PMmxG" to="tpco:2wZex4PafBj" resolve="alias" />
+        <node concept="3Xmtl4" id="2xPWNWpoS6K" role="3F10Kt">
+          <node concept="1wgc9g" id="2xPWNWpoS6L" role="3XvnJa">
+            <ref role="1wgcnl" to="itrz:7D7uZV2g_XJ" resolve="iets3Type" />
+          </node>
+        </node>
+        <node concept="VPRnO" id="2xPWNWpoS6M" role="3F10Kt">
+          <property role="VOm3f" value="true" />
+        </node>
+      </node>
+      <node concept="3EZMnI" id="2xPWNWpoS6O" role="3EZMnx">
+        <node concept="2iRfu4" id="2xPWNWpoS6P" role="2iSdaV" />
+        <node concept="3F0ifn" id="2xPWNWpoS6Q" role="3EZMnx">
+          <property role="3F0ifm" value="with constraint" />
+          <ref role="1k5W1q" to="itrz:4rZeNQ6MfR7" resolve="iets3Keyword" />
+          <ref role="1ERwB7" node="2xPWNWpwXd_" resolve="ReplaceWithStringType" />
+        </node>
+        <node concept="3F0ifn" id="2xPWNWpoS6R" role="3EZMnx">
+          <property role="3F0ifm" value="/" />
+          <ref role="1ERwB7" node="2xPWNWpwXd_" resolve="ReplaceWithStringType" />
+          <node concept="11LMrY" id="2xPWNWpoS6S" role="3F10Kt">
+            <property role="VOm3f" value="true" />
+          </node>
+        </node>
+        <node concept="3F1sOY" id="2xPWNWpoS6T" role="3EZMnx">
+          <ref role="1NtTu8" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+        </node>
+        <node concept="3F0ifn" id="2xPWNWpxiH$" role="3EZMnx">
+          <property role="3F0ifm" value="/" />
+          <ref role="1ERwB7" node="2xPWNWpwXd_" resolve="ReplaceWithStringType" />
+          <node concept="11L4FC" id="2xPWNWpxiH_" role="3F10Kt">
+            <property role="VOm3f" value="true" />
+          </node>
+        </node>
+        <node concept="VPM3Z" id="2xPWNWpMhPk" role="3F10Kt" />
+      </node>
+    </node>
+  </node>
+  <node concept="1h_SRR" id="2xPWNWpwXd_">
+    <property role="3GE5qa" value="string" />
+    <property role="TrG5h" value="ReplaceWithStringType" />
+    <ref role="1h_SK9" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+    <node concept="1hA7zw" id="2xPWNWpx56r" role="1h_SK8">
+      <property role="1hAc7j" value="g_hAxAO/delete_action_id" />
+      <node concept="1hAIg9" id="2xPWNWpx56s" role="1hA7z_">
+        <node concept="3clFbS" id="2xPWNWpx56t" role="2VODD2">
+          <node concept="3clFbF" id="2xPWNWpy0PP" role="3cqZAp">
+            <node concept="2OqwBi" id="2xPWNWpy137" role="3clFbG">
+              <node concept="0IXxy" id="2xPWNWpy0PO" role="2Oq$k0" />
+              <node concept="1_qnLN" id="2xPWNWpy37l" role="2OqNvi">
+                <ref role="1_rbq0" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+  </node>
+  <node concept="24kQdi" id="7J8ctKuJvtt">
+    <property role="3GE5qa" value="string" />
+    <ref role="1XX52x" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+    <node concept="3EZMnI" id="7J8ctKuJvt_" role="2wV5jI">
+      <node concept="2iRfu4" id="7J8ctKuJvtA" role="2iSdaV" />
+      <node concept="PMmxH" id="6sdnDbSlMTe" role="3EZMnx">
+        <ref role="PMmxG" to="tpco:2wZex4PafBj" resolve="alias" />
+        <node concept="3Xmtl4" id="4rZeNQ6MfS9" role="3F10Kt">
+          <node concept="1wgc9g" id="7D7uZV2hwIg" role="3XvnJa">
+            <ref role="1wgcnl" to="itrz:7D7uZV2g_XJ" resolve="iets3Type" />
+          </node>
+        </node>
+        <node concept="VPRnO" id="2KGel$S9Weg" role="3F10Kt">
+          <property role="VOm3f" value="true" />
+        </node>
+      </node>
+      <node concept="1eYWM2" id="2xPWNWp$vnN" role="3EZMnx">
+        <node concept="1eYwpX" id="2xPWNWp$vnO" role="1eYxym">
+          <node concept="3clFbS" id="2xPWNWp$vnP" role="2VODD2">
+            <node concept="3clFbF" id="2xPWNWp$MrS" role="3cqZAp">
+              <node concept="3clFbT" id="2xPWNWp$MrR" role="3clFbG">
+                <property role="3clFbU" value="true" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="1eYWSL" id="2xPWNWp$vnQ" role="1eYxyj">
+          <node concept="3clFbS" id="2xPWNWp$vnR" role="2VODD2">
+            <node concept="3clFbF" id="2xPWNWp$$qV" role="3cqZAp">
+              <node concept="Xl_RD" id="2xPWNWp$$qU" role="3clFbG">
+                <property role="Xl_RC" value="with constraint" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="1eYxTg" id="2xPWNWp$vnS" role="1eYxTh">
+          <node concept="3clFbS" id="2xPWNWp$vnT" role="2VODD2">
+            <node concept="3cpWs8" id="2xPWNWpA1nx" role="3cqZAp">
+              <node concept="3cpWsn" id="2xPWNWpA1ny" role="3cpWs9">
+                <property role="TrG5h" value="node" />
+                <node concept="3Tqbb2" id="2xPWNWpA33w" role="1tU5fm" />
+                <node concept="2OqwBi" id="2xPWNWpA1nz" role="33vP2m">
+                  <node concept="2kS8pE" id="2xPWNWpA1n$" role="2Oq$k0" />
+                  <node concept="liA8E" id="2xPWNWpA1n_" role="2OqNvi">
+                    <ref role="37wK5l" to="uddc:~TransformationMenuContext.getNode()" resolve="getNode" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3cpWs8" id="2xPWNWpBdUu" role="3cqZAp">
+              <node concept="3cpWsn" id="2xPWNWpBdUx" role="3cpWs9">
+                <property role="TrG5h" value="newNode" />
+                <node concept="3Tqbb2" id="2xPWNWpBdUs" role="1tU5fm" />
+                <node concept="2pJPEk" id="2xPWNWpBiCA" role="33vP2m">
+                  <node concept="2pJPED" id="2xPWNWpBiCC" role="2pJPEn">
+                    <ref role="2pJxaS" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+                    <node concept="2pIpSj" id="2xPWNWpBlOg" role="2pJxcM">
+                      <ref role="2pIpSl" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+                      <node concept="2pJPED" id="2xPWNWpBp6J" role="28nt2d">
+                        <ref role="2pJxaS" to="tpfo:h5OC9$H" resolve="StringLiteralRegexp" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbF" id="2xPWNWpA6jt" role="3cqZAp">
+              <node concept="2OqwBi" id="2xPWNWpA6tO" role="3clFbG">
+                <node concept="37vLTw" id="2xPWNWpA6jr" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2xPWNWpA1ny" resolve="node" />
+                </node>
+                <node concept="1P9Npp" id="2xPWNWpBsN4" role="2OqNvi">
+                  <node concept="37vLTw" id="2xPWNWpBup9" role="1P9ThW">
+                    <ref role="3cqZAo" node="2xPWNWpBdUx" resolve="newNode" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="uPpia" id="2xPWNWp_2CX" role="1djCvC">
+          <node concept="3clFbS" id="2xPWNWp_2CY" role="2VODD2">
+            <node concept="3clFbF" id="2xPWNWp_2Fj" role="3cqZAp">
+              <node concept="Xl_RD" id="2xPWNWp_2Fi" role="3clFbG">
+                <property role="Xl_RC" value="add a constraint" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/intentions.mps
index 0ebf5be647..cc91bc3636 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/intentions.mps
@@ -120,6 +120,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -221,7 +222,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
     </language>
@@ -709,7 +709,7 @@
                         <node concept="2OqwBi" id="7VuYlCRLHJb" role="3fr31v">
                           <node concept="2OqwBi" id="7VuYlCRLHJc" role="2Oq$k0">
                             <node concept="37vLTw" id="7VuYlCRLHJd" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7VuYlCRLHJh" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817dO" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="7VuYlCRLHJe" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpI" resolve="when" />
@@ -724,9 +724,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7VuYlCRLHJh" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817dO" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7VuYlCRLHJi" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817dP" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -753,7 +753,7 @@
                       <node concept="2OqwBi" id="7VuYlCRLJ9S" role="3clFbG">
                         <node concept="2OqwBi" id="7VuYlCRLJ9T" role="2Oq$k0">
                           <node concept="37vLTw" id="7VuYlCRLJ9U" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7VuYlCRLJ9Y" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dQ" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="7VuYlCRLJ9V" role="2OqNvi">
                             <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpI" resolve="when" />
@@ -767,9 +767,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7VuYlCRLJ9Y" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817dQ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7VuYlCRLJ9Z" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817dR" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -856,7 +856,7 @@
                       <node concept="2OqwBi" id="7VuYlCRLsNi" role="3clFbG">
                         <node concept="2OqwBi" id="7VuYlCRLrGk" role="2Oq$k0">
                           <node concept="37vLTw" id="7VuYlCRLrrD" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7VuYlCRLqUE" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817dS" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="7VuYlCRLsoa" role="2OqNvi">
                             <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpI" resolve="when" />
@@ -870,9 +870,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7VuYlCRLqUE" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817dS" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7VuYlCRLqUF" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817dT" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/migration.mps
index 1c76e7a722..0c7bbfc3d1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/migration.mps
@@ -4,16 +4,16 @@
   <languages>
     <use id="90746344-04fd-4286-97d5-b46ae6a81709" name="jetbrains.mps.lang.migration" version="2" />
     <use id="9882f4ad-1955-46fe-8269-94189e5dbbf2" name="jetbrains.mps.lang.migration.util" version="0" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
     <use id="d4615e3b-d671-4ba9-af01-2b78369b0ba7" name="jetbrains.mps.lang.pattern" version="2" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
   <imports>
     <import index="lui2" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.module(MPS.OpenAPI/)" />
-    <import index="slm6" ref="90746344-04fd-4286-97d5-b46ae6a81709/r:52a3d974-bd4f-4651-ba6e-a2de5e336d95(jetbrains.mps.lang.migration/jetbrains.mps.lang.migration.methods)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
+    <import index="slm6" ref="90746344-04fd-4286-97d5-b46ae6a81709/r:52a3d974-bd4f-4651-ba6e-a2de5e336d95(jetbrains.mps.lang.migration/jetbrains.mps.lang.migration.methods)" />
     <import index="5qo5" ref="r:6d93ddb1-b0b0-4eee-8079-51303666672a(org.iets3.core.expr.simpleTypes.structure)" implicit="true" />
     <import index="b1h1" ref="r:ac5f749f-6179-4d4f-ad24-ad9edbd8077b(org.iets3.core.expr.simpleTypes.behavior)" implicit="true" />
   </imports>
@@ -78,7 +78,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
@@ -92,13 +92,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -177,7 +178,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -241,7 +242,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
     </language>
   </registry>
@@ -3195,7 +3195,7 @@
                             <node concept="3fqX7Q" id="6t7QbZwD5Lg" role="3uHU7w">
                               <node concept="2OqwBi" id="6t7QbZwD6Lg" role="3fr31v">
                                 <node concept="37vLTw" id="6t7QbZwD699" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="6t7QbZwCWu9" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3Vyf" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="6t7QbZwD7B8" role="2OqNvi">
                                   <ref role="37wK5l" to="b1h1:19PglA251oh" resolve="canDerivePrecisionFromRange" />
@@ -3206,7 +3206,7 @@
                               <node concept="3y3z36" id="6t7QbZwD2t8" role="3uHU7B">
                                 <node concept="2OqwBi" id="6t7QbZwCZon" role="3uHU7B">
                                   <node concept="37vLTw" id="6t7QbZwCYVW" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6t7QbZwCWu9" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l3Vyf" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="6t7QbZwD1Uk" role="2OqNvi">
                                     <ref role="3Tt5mk" to="5qo5:19PglA20qXS" resolve="range" />
@@ -3217,7 +3217,7 @@
                               <node concept="3clFbC" id="6t7QbZwD5hp" role="3uHU7w">
                                 <node concept="2OqwBi" id="6t7QbZwD3RD" role="3uHU7B">
                                   <node concept="37vLTw" id="6t7QbZwD3tu" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6t7QbZwCWu9" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l3Vyf" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="6t7QbZwD4Gj" role="2OqNvi">
                                     <ref role="3Tt5mk" to="5qo5:19PglA20qY9" resolve="prec" />
@@ -3229,9 +3229,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="6t7QbZwCWu9" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l3Vyf" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6t7QbZwCWua" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l3Vyg" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/plugin.mps
index e118ea8f17..ff6f6b962f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:5bf19129-2710-45a6-906e-9ee2d0977853(org.iets3.core.expr.simpleTypes.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="-1" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="-1" />
@@ -54,7 +54,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -102,7 +102,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -164,7 +164,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -189,7 +189,7 @@
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -209,6 +209,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -257,6 +258,9 @@
       <concept id="1177026924588" name="jetbrains.mps.lang.smodel.structure.RefConcept_Reference" flags="nn" index="chp4Y">
         <reference id="1177026940964" name="conceptDeclaration" index="cht4Q" />
       </concept>
+      <concept id="1138411891628" name="jetbrains.mps.lang.smodel.structure.SNodeOperation" flags="nn" index="eCIE_">
+        <child id="1144104376918" name="parameter" index="1xVPHs" />
+      </concept>
       <concept id="1179409122411" name="jetbrains.mps.lang.smodel.structure.Node_ConceptMethodCall" flags="nn" index="2qgKlT" />
       <concept id="4693937538533521280" name="jetbrains.mps.lang.smodel.structure.OfConceptOperation" flags="ng" index="v3k3i">
         <child id="4693937538533538124" name="requestedConcept" index="v3oSu" />
@@ -269,6 +273,7 @@
       <concept id="1145383075378" name="jetbrains.mps.lang.smodel.structure.SNodeListType" flags="in" index="2I9FWS">
         <reference id="1145383142433" name="elementConcept" index="2I9WkF" />
       </concept>
+      <concept id="1171305280644" name="jetbrains.mps.lang.smodel.structure.Node_GetDescendantsOperation" flags="nn" index="2Rf3mk" />
       <concept id="1145567426890" name="jetbrains.mps.lang.smodel.structure.SNodeListCreator" flags="nn" index="2T8Vx0">
         <child id="1145567471833" name="createdType" index="2T96Bj" />
       </concept>
@@ -282,10 +287,16 @@
       <concept id="1139621453865" name="jetbrains.mps.lang.smodel.structure.Node_IsInstanceOfOperation" flags="nn" index="1mIQ4w">
         <child id="1177027386292" name="conceptArgument" index="cj9EA" />
       </concept>
+      <concept id="1144101972840" name="jetbrains.mps.lang.smodel.structure.OperationParm_Concept" flags="ng" index="1xMEDy">
+        <child id="1207343664468" name="conceptArgument" index="ri$Ld" />
+      </concept>
       <concept id="1180636770613" name="jetbrains.mps.lang.smodel.structure.SNodeCreator" flags="nn" index="3zrR0B">
         <child id="1180636770616" name="createdType" index="3zrR0E" />
       </concept>
       <concept id="1144146199828" name="jetbrains.mps.lang.smodel.structure.Node_CopyOperation" flags="nn" index="1$rogu" />
+      <concept id="1140131837776" name="jetbrains.mps.lang.smodel.structure.Node_ReplaceWithAnotherOperation" flags="nn" index="1P9Npp">
+        <child id="1140131861877" name="replacementNode" index="1P9ThW" />
+      </concept>
       <concept id="1140137987495" name="jetbrains.mps.lang.smodel.structure.SNodeTypeCastExpression" flags="nn" index="1PxgMI">
         <property id="1238684351431" name="asCast" index="1BlNFB" />
       </concept>
@@ -306,7 +317,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -332,6 +343,7 @@
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
       <concept id="1176923520476" name="jetbrains.mps.baseLanguage.collections.structure.ExcludeOperation" flags="nn" index="66VNe" />
+      <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1226511727824" name="jetbrains.mps.baseLanguage.collections.structure.SetType" flags="in" index="2hMVRd">
         <child id="1226511765987" name="elementType" index="2hN53Y" />
       </concept>
@@ -363,11 +375,11 @@
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
       <concept id="1227026094155" name="jetbrains.mps.baseLanguage.collections.structure.RemoveLastElementOperation" flags="nn" index="2Kt5_m" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
+      <concept id="1167380149909" name="jetbrains.mps.baseLanguage.collections.structure.RemoveElementOperation" flags="nn" index="3dhRuq" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1165530316231" name="jetbrains.mps.baseLanguage.collections.structure.IsEmptyOperation" flags="nn" index="1v1jN8" />
       <concept id="1225711141656" name="jetbrains.mps.baseLanguage.collections.structure.ListElementAccessExpression" flags="nn" index="1y4W85">
@@ -1596,7 +1608,7 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbH" id="1cX0cm8WlgN" role="3cqZAp" />
+        <node concept="3clFbH" id="6pSOa4rB0K9" role="3cqZAp" />
         <node concept="3cpWs8" id="1cX0cm8UVFq" role="3cqZAp">
           <node concept="3cpWsn" id="1cX0cm8UVFr" role="3cpWs9">
             <property role="TrG5h" value="resultTupleTypes" />
@@ -1679,6 +1691,191 @@
           </node>
         </node>
         <node concept="3clFbH" id="1PW6P0ZLV5u" role="3cqZAp" />
+        <node concept="3SKdUt" id="6pSOa4rJRLC" role="3cqZAp">
+          <node concept="1PaTwC" id="6pSOa4rJRLD" role="1aUNEU">
+            <node concept="3oM_SD" id="6pSOa4rJRLG" role="1PaTwD">
+              <property role="3oM_SC" value="the" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJRLH" role="1PaTwD">
+              <property role="3oM_SC" value="constraint-less" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWc5" role="1PaTwD">
+              <property role="3oM_SC" value="supertype" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcz" role="1PaTwD">
+              <property role="3oM_SC" value="string" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcE" role="1PaTwD">
+              <property role="3oM_SC" value="for" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcF" role="1PaTwD">
+              <property role="3oM_SC" value="all" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcG" role="1PaTwD">
+              <property role="3oM_SC" value="string" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWeh" role="1PaTwD">
+              <property role="3oM_SC" value="types" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcJ" role="1PaTwD">
+              <property role="3oM_SC" value="is" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcK" role="1PaTwD">
+              <property role="3oM_SC" value="not" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWcL" role="1PaTwD">
+              <property role="3oM_SC" value="enough," />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWdp" role="1PaTwD">
+              <property role="3oM_SC" value="we" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWdq" role="1PaTwD">
+              <property role="3oM_SC" value="need" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWdr" role="1PaTwD">
+              <property role="3oM_SC" value="to" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWds" role="1PaTwD">
+              <property role="3oM_SC" value="remove" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWeD" role="1PaTwD">
+              <property role="3oM_SC" value="the" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWeE" role="1PaTwD">
+              <property role="3oM_SC" value="constraint" />
+            </node>
+            <node concept="3oM_SD" id="6pSOa4rJWeF" role="1PaTwD">
+              <property role="3oM_SC" value="manually" />
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="7LIXz$ntnAQ" role="3cqZAp">
+          <node concept="3cpWsn" id="7LIXz$ntnAR" role="3cpWs9">
+            <property role="TrG5h" value="stringType" />
+            <node concept="3Tqbb2" id="7LIXz$ntlL5" role="1tU5fm">
+              <ref role="ehGHo" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+            </node>
+            <node concept="2ShNRf" id="7LIXz$ntnAS" role="33vP2m">
+              <node concept="3zrR0B" id="7LIXz$ntnAT" role="2ShVmc">
+                <node concept="3Tqbb2" id="7LIXz$ntnAU" role="3zrR0E">
+                  <ref role="ehGHo" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="6pSOa4rB9R1" role="3cqZAp">
+          <node concept="2OqwBi" id="6pSOa4rGFLY" role="3clFbG">
+            <node concept="37vLTw" id="6pSOa4rGAT8" role="2Oq$k0">
+              <ref role="3cqZAo" node="1PW6P0ZOp4z" resolve="resultTypes" />
+            </node>
+            <node concept="2es0OD" id="6pSOa4rGKPh" role="2OqNvi">
+              <node concept="1bVj0M" id="6pSOa4rGKPj" role="23t8la">
+                <node concept="3clFbS" id="6pSOa4rGKPk" role="1bW5cS">
+                  <node concept="3clFbF" id="6pSOa4rGL6j" role="3cqZAp">
+                    <node concept="2OqwBi" id="6pSOa4rH1pG" role="3clFbG">
+                      <node concept="2OqwBi" id="6pSOa4rGN4e" role="2Oq$k0">
+                        <node concept="37vLTw" id="6pSOa4rGL6i" role="2Oq$k0">
+                          <ref role="3cqZAo" node="6pSOa4rGKPl" resolve="resultType" />
+                        </node>
+                        <node concept="2Rf3mk" id="6pSOa4rGPC8" role="2OqNvi">
+                          <node concept="1xMEDy" id="6pSOa4rGPCa" role="1xVPHs">
+                            <node concept="chp4Y" id="6pSOa4rGSKG" role="ri$Ld">
+                              <ref role="cht4Q" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="2es0OD" id="6pSOa4rH7US" role="2OqNvi">
+                        <node concept="1bVj0M" id="6pSOa4rH7UU" role="23t8la">
+                          <node concept="3clFbS" id="6pSOa4rH7UV" role="1bW5cS">
+                            <node concept="3clFbF" id="6pSOa4rH9Qr" role="3cqZAp">
+                              <node concept="2OqwBi" id="6pSOa4rHc6y" role="3clFbG">
+                                <node concept="37vLTw" id="6pSOa4rH9Qq" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="6pSOa4rH7UW" resolve="it" />
+                                </node>
+                                <node concept="1P9Npp" id="7LIXz$nuPV8" role="2OqNvi">
+                                  <node concept="2OqwBi" id="7LIXz$nRgrQ" role="1P9ThW">
+                                    <node concept="37vLTw" id="7LIXz$nRcTW" role="2Oq$k0">
+                                      <ref role="3cqZAo" node="7LIXz$ntnAR" resolve="stringType" />
+                                    </node>
+                                    <node concept="1$rogu" id="7LIXz$nRmo6" role="2OqNvi" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                          <node concept="gl6BB" id="6pSOa4rH7UW" role="1bW2Oz">
+                            <property role="TrG5h" value="it" />
+                            <node concept="2jxLKc" id="6pSOa4rH7UX" role="1tU5fm" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="gl6BB" id="6pSOa4rGKPl" role="1bW2Oz">
+                  <property role="TrG5h" value="resultType" />
+                  <node concept="2jxLKc" id="6pSOa4rGKPm" role="1tU5fm" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="7LIXz$mAlsQ" role="3cqZAp">
+          <node concept="37vLTI" id="7LIXz$mAu0z" role="3clFbG">
+            <node concept="2OqwBi" id="7LIXz$mBWGC" role="37vLTx">
+              <node concept="2OqwBi" id="7LIXz$mACmz" role="2Oq$k0">
+                <node concept="37vLTw" id="7LIXz$mAztq" role="2Oq$k0">
+                  <ref role="3cqZAo" node="1PW6P0ZOp4z" resolve="resultTypes" />
+                </node>
+                <node concept="3$u5V9" id="7LIXz$mALvh" role="2OqNvi">
+                  <node concept="1bVj0M" id="7LIXz$mALvj" role="23t8la">
+                    <node concept="3clFbS" id="7LIXz$mALvk" role="1bW5cS">
+                      <node concept="3clFbJ" id="7LIXz$mANmd" role="3cqZAp">
+                        <node concept="2OqwBi" id="7LIXz$mB14_" role="3clFbw">
+                          <node concept="37vLTw" id="7LIXz$mAY9P" role="2Oq$k0">
+                            <ref role="3cqZAo" node="7LIXz$mALvl" resolve="it" />
+                          </node>
+                          <node concept="1mIQ4w" id="7LIXz$mB5x2" role="2OqNvi">
+                            <node concept="chp4Y" id="7LIXz$mBc6L" role="cj9EA">
+                              <ref role="cht4Q" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbS" id="7LIXz$mANmf" role="3clFbx">
+                          <node concept="3cpWs6" id="7LIXz$mBhSR" role="3cqZAp">
+                            <node concept="37vLTw" id="7LIXz$ntnAV" role="3cqZAk">
+                              <ref role="3cqZAo" node="7LIXz$ntnAR" resolve="stringType" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="9aQIb" id="7LIXz$mB$Tf" role="9aQIa">
+                          <node concept="3clFbS" id="7LIXz$mB$Tg" role="9aQI4">
+                            <node concept="3cpWs6" id="7LIXz$mBHfT" role="3cqZAp">
+                              <node concept="37vLTw" id="7LIXz$mBQC9" role="3cqZAk">
+                                <ref role="3cqZAo" node="7LIXz$mALvl" resolve="it" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="gl6BB" id="7LIXz$mALvl" role="1bW2Oz">
+                      <property role="TrG5h" value="it" />
+                      <node concept="2jxLKc" id="7LIXz$mALvm" role="1tU5fm" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="ANE8D" id="7LIXz$mCh1Q" role="2OqNvi" />
+            </node>
+            <node concept="37vLTw" id="7LIXz$mAlsO" role="37vLTJ">
+              <ref role="3cqZAo" node="1PW6P0ZOp4z" resolve="resultTypes" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="7LIXz$mAglX" role="3cqZAp" />
         <node concept="3SKdUt" id="670RODgQSGW" role="3cqZAp">
           <node concept="1PaTwC" id="670RODgQSGX" role="1aUNEU">
             <node concept="3oM_SD" id="670RODgR72B" role="1PaTwD">
@@ -2046,7 +2243,7 @@
                   <node concept="3clFbF" id="zJfofgCwst" role="3cqZAp">
                     <node concept="3y3z36" id="zJfofgCxGt" role="3clFbG">
                       <node concept="37vLTw" id="zJfofgCwss" role="3uHU7B">
-                        <ref role="3cqZAo" node="zJfofgCuzR" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817dY" resolve="it" />
                       </node>
                       <node concept="2OqwBi" id="bA6f$piPZq" role="3uHU7w">
                         <node concept="37vLTw" id="bA6f$piPZr" role="2Oq$k0">
@@ -2057,9 +2254,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="zJfofgCuzR" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817dY" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="zJfofgCuzS" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817dZ" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2130,7 +2327,6 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbH" id="6unC0YG1a$j" role="3cqZAp" />
         <node concept="3cpWs8" id="1cX0cm8Zurv" role="3cqZAp">
           <node concept="3cpWsn" id="1cX0cm8Zurw" role="3cpWs9">
             <property role="TrG5h" value="jt" />
@@ -2267,6 +2463,82 @@
             </node>
           </node>
         </node>
+        <node concept="3cpWs8" id="7LIXz$n_Hue" role="3cqZAp">
+          <node concept="3cpWsn" id="7LIXz$n_Huh" role="3cpWs9">
+            <property role="TrG5h" value="stringTypeFound" />
+            <node concept="10P_77" id="7LIXz$n_Huc" role="1tU5fm" />
+            <node concept="3clFbT" id="7LIXz$n_ZlS" role="33vP2m" />
+          </node>
+        </node>
+        <node concept="2Gpval" id="7LIXz$nA5Qp" role="3cqZAp">
+          <node concept="2GrKxI" id="7LIXz$nA5Qr" role="2Gsz3X">
+            <property role="TrG5h" value="type" />
+          </node>
+          <node concept="2OqwBi" id="7LIXz$nAqc_" role="2GsD0m">
+            <node concept="37vLTw" id="7LIXz$nAo4Y" role="2Oq$k0">
+              <ref role="3cqZAo" node="1cX0cm8Zurw" resolve="jt" />
+            </node>
+            <node concept="3Tsc0h" id="7LIXz$nAvBK" role="2OqNvi">
+              <ref role="3TtcxE" to="hm2y:7VuYlCQZ3lm" resolve="types" />
+            </node>
+          </node>
+          <node concept="3clFbS" id="7LIXz$nA5Qv" role="2LFqv$">
+            <node concept="3clFbJ" id="7LIXz$nA$zR" role="3cqZAp">
+              <node concept="3clFbS" id="7LIXz$nA$zT" role="3clFbx">
+                <node concept="3clFbJ" id="7LIXz$nBgZF" role="3cqZAp">
+                  <node concept="3fqX7Q" id="7LIXz$nBBLQ" role="3clFbw">
+                    <node concept="37vLTw" id="7LIXz$nBBLS" role="3fr31v">
+                      <ref role="3cqZAo" node="7LIXz$n_Huh" resolve="stringTypeFound" />
+                    </node>
+                  </node>
+                  <node concept="3clFbS" id="7LIXz$nBgZH" role="3clFbx">
+                    <node concept="3clFbF" id="7LIXz$nBIql" role="3cqZAp">
+                      <node concept="37vLTI" id="7LIXz$nBQaB" role="3clFbG">
+                        <node concept="3clFbT" id="7LIXz$nBTRg" role="37vLTx">
+                          <property role="3clFbU" value="true" />
+                        </node>
+                        <node concept="37vLTw" id="7LIXz$nBIqk" role="37vLTJ">
+                          <ref role="3cqZAo" node="7LIXz$n_Huh" resolve="stringTypeFound" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="9aQIb" id="7LIXz$nC170" role="9aQIa">
+                    <node concept="3clFbS" id="7LIXz$nC171" role="9aQI4">
+                      <node concept="3clFbF" id="7LIXz$nC5R8" role="3cqZAp">
+                        <node concept="2OqwBi" id="7LIXz$nCh8S" role="3clFbG">
+                          <node concept="2OqwBi" id="7LIXz$nC7YB" role="2Oq$k0">
+                            <node concept="37vLTw" id="7LIXz$nC5R7" role="2Oq$k0">
+                              <ref role="3cqZAo" node="1cX0cm8Zurw" resolve="jt" />
+                            </node>
+                            <node concept="3Tsc0h" id="7LIXz$nCbMF" role="2OqNvi">
+                              <ref role="3TtcxE" to="hm2y:7VuYlCQZ3lm" resolve="types" />
+                            </node>
+                          </node>
+                          <node concept="3dhRuq" id="7LIXz$nCo3V" role="2OqNvi">
+                            <node concept="2GrUjf" id="7LIXz$nCrKc" role="25WWJ7">
+                              <ref role="2Gs0qQ" node="7LIXz$nA5Qr" resolve="type" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="2OqwBi" id="7LIXz$nB4yJ" role="3clFbw">
+                <node concept="2GrUjf" id="7LIXz$nB2sj" role="2Oq$k0">
+                  <ref role="2Gs0qQ" node="7LIXz$nA5Qr" resolve="type" />
+                </node>
+                <node concept="1mIQ4w" id="7LIXz$nB8uw" role="2OqNvi">
+                  <node concept="chp4Y" id="7LIXz$nBc1E" role="cj9EA">
+                    <ref role="cht4Q" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
         <node concept="3clFbF" id="7JCDpchDZwS" role="3cqZAp">
           <node concept="2OqwBi" id="7JCDpchEFHq" role="3clFbG">
             <node concept="2OqwBi" id="7JCDpchEaLn" role="2Oq$k0">
@@ -2463,7 +2735,7 @@
                                 </node>
                                 <node concept="2OqwBi" id="1PW6P0ZLheW" role="1LFl5Q">
                                   <node concept="37vLTw" id="1PW6P0ZLheX" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1PW6P0ZLheZ" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817e0" resolve="it" />
                                   </node>
                                   <node concept="2qgKlT" id="1PW6P0ZLheY" role="2OqNvi">
                                     <ref role="37wK5l" to="b1h1:2NHHcg2Ff6S" resolve="range" />
@@ -2472,9 +2744,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1PW6P0ZLheZ" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817e0" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="1PW6P0ZLhf0" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817e1" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -2503,7 +2775,7 @@
                                 </node>
                                 <node concept="2OqwBi" id="1PW6P0ZLhfd" role="1LFl5Q">
                                   <node concept="37vLTw" id="1PW6P0ZLhfe" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1PW6P0ZLhfg" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817e2" resolve="it" />
                                   </node>
                                   <node concept="2qgKlT" id="1PW6P0ZLhff" role="2OqNvi">
                                     <ref role="37wK5l" to="b1h1:2NHHcg2Ff6S" resolve="range" />
@@ -2512,9 +2784,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1PW6P0ZLhfg" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817e2" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="1PW6P0ZLhfh" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817e3" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -2594,7 +2866,7 @@
                         <node concept="3clFbF" id="1PW6P0ZLhfK" role="3cqZAp">
                           <node concept="2OqwBi" id="1PW6P0ZLhfL" role="3clFbG">
                             <node concept="37vLTw" id="1PW6P0ZLhfM" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1PW6P0ZLhfO" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817e4" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="1PW6P0ZLhfN" role="2OqNvi">
                               <ref role="37wK5l" to="b1h1:19PglA20ASE" resolve="precision" />
@@ -2602,9 +2874,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1PW6P0ZLhfO" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817e4" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1PW6P0ZLhfP" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817e5" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2857,13 +3129,13 @@
                               <node concept="22lmx$" id="x6NxUzmLE5" role="3clFbG">
                                 <node concept="3clFbC" id="x6NxUzmviX" role="3uHU7B">
                                   <node concept="37vLTw" id="x6NxUzmqPZ" role="3uHU7B">
-                                    <ref role="3cqZAo" node="1G7Ce6ww1h6" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817e6" resolve="it" />
                                   </node>
                                   <node concept="10Nm6u" id="x6NxUzm$LQ" role="3uHU7w" />
                                 </node>
                                 <node concept="2OqwBi" id="5Am5nOLsgTA" role="3uHU7w">
                                   <node concept="37vLTw" id="1G7Ce6ww1h5" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1G7Ce6ww1h6" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817e6" resolve="it" />
                                   </node>
                                   <node concept="1mIQ4w" id="5Am5nOLsxWo" role="2OqNvi">
                                     <node concept="chp4Y" id="5Am5nOLsFwD" role="cj9EA">
@@ -2874,9 +3146,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1G7Ce6ww1h6" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817e6" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="1G7Ce6ww1h7" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817e7" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/structure.mps
index 4e1db89b21..f1ccb9ac51 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/structure.mps
@@ -12,6 +12,7 @@
     <import index="l80j" ref="r:9e71c0de-f9ab-4b67-96cc-7d9c857513f6(org.iets3.analysis.base.structure)" />
     <import index="87nw" ref="r:ca2ab6bb-f6e7-4c0f-a88c-b78b9b31fff3(de.slisson.mps.richtext.structure)" />
     <import index="4kwy" ref="r:657c9fde-2f36-4e61-ae17-20f02b8630ad(org.iets3.core.base.structure)" />
+    <import index="tpfo" ref="r:00000000-0000-4000-0000-011c89590518(jetbrains.mps.baseLanguage.regexp.structure)" implicit="true" />
   </imports>
   <registry>
     <language id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure">
@@ -51,7 +52,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -511,5 +512,20 @@
       <ref role="20lvS9" to="hm2y:6sdnDbSla17" resolve="Expression" />
     </node>
   </node>
+  <node concept="1TIwiD" id="2xPWNWpoRmG">
+    <property role="TrG5h" value="StringTypeWithConstraint" />
+    <property role="34LRSv" value="string" />
+    <property role="3GE5qa" value="string" />
+    <property role="EcuMT" value="2915503786126701996" />
+    <property role="R4oN_" value="a sequence of characters type with a constraint" />
+    <ref role="1TJDcQ" node="4rZeNQ6OYR7" resolve="StringType" />
+    <node concept="1TJgyj" id="2xPWNWprAOp" role="1TKVEi">
+      <property role="IQ2ns" value="8919433883485586606" />
+      <property role="20lmBu" value="fLJjDmT/aggregation" />
+      <property role="20kJfa" value="constraint" />
+      <property role="20lbJX" value="fLJekj4/_1" />
+      <ref role="20lvS9" to="tpfo:h5OC6VX" resolve="Regexp" />
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/textGen.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/textGen.mps
index 79d5db9aaa..33affa3041 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/textGen.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/textGen.mps
@@ -20,7 +20,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/typesystem.mps
index b2caca6bb1..7388086ecf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/models/typesystem.mps
@@ -4,6 +4,7 @@
   <languages>
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="df345b11-b8c7-4213-ac66-48d2a9b75d88" name="jetbrains.mps.baseLanguageInternal" version="0" />
+    <use id="daafa647-f1f7-4b0b-b096-69cd7c8408c0" name="jetbrains.mps.baseLanguage.regexp" version="0" />
     <devkit ref="00000000-0000-4000-0000-1de82b3a4936(jetbrains.mps.devkit.aspect.typesystem)" />
   </languages>
   <imports>
@@ -18,8 +19,10 @@
     <import index="tpd4" ref="r:00000000-0000-4000-0000-011c895902b4(jetbrains.mps.lang.typesystem.structure)" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" />
     <import index="gdgh" ref="r:e4d9478b-ae0e-416e-be60-73d136571015(org.iets3.core.base.behavior)" />
+    <import index="tpfo" ref="r:00000000-0000-4000-0000-011c89590518(jetbrains.mps.baseLanguage.regexp.structure)" implicit="true" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" implicit="true" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" implicit="true" />
+    <import index="tpfs" ref="r:00000000-0000-4000-0000-011c89590514(jetbrains.mps.baseLanguage.regexp.behavior)" implicit="true" />
   </imports>
   <registry>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
@@ -34,6 +37,9 @@
       <concept id="1153417849900" name="jetbrains.mps.baseLanguage.structure.GreaterThanOrEqualsExpression" flags="nn" index="2d3UOw" />
       <concept id="4836112446988635817" name="jetbrains.mps.baseLanguage.structure.UndefinedType" flags="in" index="2jxLKc" />
       <concept id="1202948039474" name="jetbrains.mps.baseLanguage.structure.InstanceMethodCallOperation" flags="nn" index="liA8E" />
+      <concept id="8118189177080264853" name="jetbrains.mps.baseLanguage.structure.AlternativeType" flags="ig" index="nSUau">
+        <child id="8118189177080264854" name="alternative" index="nSUat" />
+      </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
@@ -51,6 +57,7 @@
       <concept id="1070475926800" name="jetbrains.mps.baseLanguage.structure.StringLiteral" flags="nn" index="Xl_RD">
         <property id="1070475926801" name="value" index="Xl_RC" />
       </concept>
+      <concept id="4952749571008284462" name="jetbrains.mps.baseLanguage.structure.CatchVariable" flags="ng" index="XOnhg" />
       <concept id="1081236700937" name="jetbrains.mps.baseLanguage.structure.StaticMethodCall" flags="nn" index="2YIFZM">
         <reference id="1144433194310" name="classConcept" index="1Pybhc" />
       </concept>
@@ -64,6 +71,7 @@
       </concept>
       <concept id="1068498886294" name="jetbrains.mps.baseLanguage.structure.AssignmentExpression" flags="nn" index="37vLTI" />
       <concept id="1225271177708" name="jetbrains.mps.baseLanguage.structure.StringType" flags="in" index="17QB3L" />
+      <concept id="1225271408483" name="jetbrains.mps.baseLanguage.structure.IsNotEmptyOperation" flags="nn" index="17RvpY" />
       <concept id="4972933694980447171" name="jetbrains.mps.baseLanguage.structure.BaseVariableDeclaration" flags="ng" index="19Szcq">
         <child id="5680397130376446158" name="type" index="1tU5fm" />
       </concept>
@@ -103,27 +111,51 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
+      <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
+        <reference id="1107535924139" name="classifier" index="3uigEE" />
+      </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
+      <concept id="3093926081414150598" name="jetbrains.mps.baseLanguage.structure.MultipleCatchClause" flags="ng" index="3uVAMA">
+        <child id="8276990574895933173" name="catchBody" index="1zc67A" />
+        <child id="8276990574895933172" name="throwable" index="1zc67B" />
+      </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
+      <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
+        <child id="8276990574886367510" name="catchClause" index="1zxBo5" />
+        <child id="8276990574886367508" name="body" index="1zxBo7" />
+      </concept>
+      <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
+        <child id="1163668914799" name="condition" index="3K4Cdx" />
+        <child id="1163668922816" name="ifTrue" index="3K4E3e" />
+        <child id="1163668934364" name="ifFalse" index="3K4GZi" />
+      </concept>
+      <concept id="5497648299878491908" name="jetbrains.mps.baseLanguage.structure.BaseVariableReference" flags="nn" index="1M0zk4">
+        <reference id="5497648299878491909" name="baseVariableDeclaration" index="1M0zk5" />
+      </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
         <child id="8356039341262087992" name="line" index="1aUNEU" />
       </concept>
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
       </concept>
     </language>
     <language id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation">
+      <concept id="5455284157994012186" name="jetbrains.mps.lang.quotation.structure.NodeBuilderInitLink" flags="ng" index="2pIpSj">
+        <reference id="5455284157994012188" name="link" index="2pIpSl" />
+        <child id="1595412875168045827" name="initValue" index="28nt2d" />
+      </concept>
       <concept id="5455284157993911077" name="jetbrains.mps.lang.quotation.structure.NodeBuilderInitProperty" flags="ng" index="2pJxcG">
         <reference id="5455284157993911078" name="property" index="2pJxcJ" />
         <child id="1595412875168045201" name="initValue" index="28ntcv" />
@@ -138,6 +170,9 @@
       <concept id="6985522012210254362" name="jetbrains.mps.lang.quotation.structure.NodeBuilderPropertyExpression" flags="nn" index="WxPPo">
         <child id="6985522012210254363" name="expression" index="WxPPp" />
       </concept>
+      <concept id="8182547171709752110" name="jetbrains.mps.lang.quotation.structure.NodeBuilderExpression" flags="nn" index="36biLy">
+        <child id="8182547171709752112" name="expression" index="36biLW" />
+      </concept>
     </language>
     <language id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem">
       <concept id="1207055528241" name="jetbrains.mps.lang.typesystem.structure.WarningStatement" flags="nn" index="a7r0C">
@@ -187,6 +222,7 @@
         <child id="1201607798918" name="supertypeNode" index="35pZ6h" />
         <child id="3592071576955708909" name="isApplicableClause" index="1xSnZW" />
       </concept>
+      <concept id="1201618299781" name="jetbrains.mps.lang.typesystem.structure.ErrorInfoExpression" flags="nn" index="3622Ei" />
       <concept id="1195213580585" name="jetbrains.mps.lang.typesystem.structure.AbstractCheckingRule" flags="ig" index="18hYwZ">
         <child id="1195213635060" name="body" index="18ibNy" />
       </concept>
@@ -254,7 +290,17 @@
         <child id="6733348108486823193" name="leftExpression" index="1m5AlR" />
         <child id="3906496115198199033" name="conceptArgument" index="3oSUPX" />
       </concept>
-      <concept id="1145383075378" name="jetbrains.mps.lang.smodel.structure.SNodeListType" flags="in" index="2I9FWS" />
+      <concept id="1145383075378" name="jetbrains.mps.lang.smodel.structure.SNodeListType" flags="in" index="2I9FWS">
+        <reference id="1145383142433" name="elementConcept" index="2I9WkF" />
+      </concept>
+      <concept id="1883223317721008708" name="jetbrains.mps.lang.smodel.structure.IfInstanceOfStatement" flags="nn" index="Jncv_">
+        <reference id="1883223317721008712" name="nodeConcept" index="JncvD" />
+        <child id="1883223317721008709" name="body" index="Jncv$" />
+        <child id="1883223317721008711" name="variable" index="JncvA" />
+        <child id="1883223317721008710" name="nodeExpression" index="JncvB" />
+      </concept>
+      <concept id="1883223317721008713" name="jetbrains.mps.lang.smodel.structure.IfInstanceOfVariable" flags="ng" index="JncvC" />
+      <concept id="1883223317721107059" name="jetbrains.mps.lang.smodel.structure.IfInstanceOfVarReference" flags="nn" index="Jnkvi" />
       <concept id="1145567426890" name="jetbrains.mps.lang.smodel.structure.SNodeListCreator" flags="nn" index="2T8Vx0">
         <child id="1145567471833" name="createdType" index="2T96Bj" />
       </concept>
@@ -269,6 +315,7 @@
       <concept id="1139621453865" name="jetbrains.mps.lang.smodel.structure.Node_IsInstanceOfOperation" flags="nn" index="1mIQ4w">
         <child id="1177027386292" name="conceptArgument" index="cj9EA" />
       </concept>
+      <concept id="1171999116870" name="jetbrains.mps.lang.smodel.structure.Node_IsNullOperation" flags="nn" index="3w_OXm" />
       <concept id="1172008320231" name="jetbrains.mps.lang.smodel.structure.Node_IsNotNullOperation" flags="nn" index="3x8VRR" />
       <concept id="1144101972840" name="jetbrains.mps.lang.smodel.structure.OperationParm_Concept" flags="ng" index="1xMEDy">
         <child id="1207343664468" name="conceptArgument" index="ri$Ld" />
@@ -296,7 +343,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -336,7 +383,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -514,13 +560,6 @@
     <property role="3GE5qa" value="string" />
     <node concept="3clFbS" id="4rZeNQ6Pjwj" role="18ibNy">
       <node concept="1Z5TYs" id="4rZeNQ6Pj$q" role="3cqZAp">
-        <node concept="mw_s8" id="4rZeNQ6Pj$I" role="1ZfhKB">
-          <node concept="2pJPEk" id="4rZeNQ6Pj$E" role="mwGJk">
-            <node concept="2pJPED" id="4rZeNQ6Pj$T" role="2pJPEn">
-              <ref role="2pJxaS" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
-            </node>
-          </node>
-        </node>
         <node concept="mw_s8" id="4rZeNQ6Pj$t" role="1ZfhK$">
           <node concept="1Z2H0r" id="4rZeNQ6Pjwv" role="mwGJk">
             <node concept="1YBJjd" id="4rZeNQ6PjwJ" role="1Z2MuG">
@@ -528,6 +567,52 @@
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9U4aN" role="1ZfhKB">
+          <node concept="2pJPEk" id="2xPWNWpqoAU" role="mwGJk">
+            <node concept="2pJPED" id="2xPWNWpqoAW" role="2pJPEn">
+              <ref role="2pJxaS" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+              <node concept="2pIpSj" id="2xPWNWpqoOr" role="2pJxcM">
+                <ref role="2pIpSl" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+                <node concept="36biLy" id="2xPWNWpqpxY" role="28nt2d">
+                  <node concept="2pJPEk" id="hTGlT9U0Ol" role="36biLW">
+                    <node concept="2pJPED" id="hTGlT9U0On" role="2pJPEn">
+                      <ref role="2pJxaS" to="tpfo:h5OC9$H" resolve="StringLiteralRegexp" />
+                      <node concept="2pJxcG" id="hTGlT9U0SX" role="2pJxcM">
+                        <ref role="2pJxcJ" to="tpfo:h5OCbxf" resolve="text" />
+                        <node concept="WxPPo" id="hTGlT9U0Vy" role="28ntcv">
+                          <node concept="3K4zz7" id="3g7FMHmyHgA" role="WxPPp">
+                            <node concept="2OqwBi" id="3g7FMHmyHwR" role="3K4E3e">
+                              <node concept="1YBJjd" id="3g7FMHmyHkd" role="2Oq$k0">
+                                <ref role="1YBMHb" node="4rZeNQ6Pjwl" resolve="sl" />
+                              </node>
+                              <node concept="3TrcHB" id="3g7FMHmyHyi" role="2OqNvi">
+                                <ref role="3TsBF5" to="5qo5:4rZeNQ6OYRb" resolve="value" />
+                              </node>
+                            </node>
+                            <node concept="Xl_RD" id="3g7FMHmyHB3" role="3K4GZi">
+                              <property role="Xl_RC" value="" />
+                            </node>
+                            <node concept="2OqwBi" id="3g7FMHmyF9a" role="3K4Cdx">
+                              <node concept="2OqwBi" id="hTGlT9U1bJ" role="2Oq$k0">
+                                <node concept="1YBJjd" id="hTGlT9U0Vw" role="2Oq$k0">
+                                  <ref role="1YBMHb" node="4rZeNQ6Pjwl" resolve="sl" />
+                                </node>
+                                <node concept="3TrcHB" id="hTGlT9U1$E" role="2OqNvi">
+                                  <ref role="3TsBF5" to="5qo5:4rZeNQ6OYRb" resolve="value" />
+                                </node>
+                              </node>
+                              <node concept="17RvpY" id="3g7FMHmyG0L" role="2OqNvi" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="4rZeNQ6Pjwl" role="1YuTPh">
@@ -4275,14 +4360,14 @@
                                   <ref role="37wK5l" to="xfg9:5ye9uPrx0ez" resolve="isOtherwiseLiteral" />
                                   <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
                                   <node concept="37vLTw" id="53cOfDpyX5I" role="37wK5m">
-                                    <ref role="3cqZAo" node="53cOfDpyW_L" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817dU" resolve="it" />
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="53cOfDpyW_L" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817dU" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="53cOfDpyW_M" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817dV" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -4304,13 +4389,13 @@
                                     <property role="Xl_RC" value="multiple ‹otherwise› literals are not allowed" />
                                   </node>
                                   <node concept="37vLTw" id="53cOfDpd6ik" role="1urrMF">
-                                    <ref role="3cqZAo" node="53cOfDpd5JT" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817dW" resolve="it" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="53cOfDpd5JT" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817dW" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="53cOfDpd5JU" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817dX" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -4534,13 +4619,6 @@
     <property role="3GE5qa" value="string.interpol" />
     <node concept="3clFbS" id="7cphKbL6iiy" role="18ibNy">
       <node concept="1Z5TYs" id="7cphKbL6ixU" role="3cqZAp">
-        <node concept="mw_s8" id="7cphKbL6iye" role="1ZfhKB">
-          <node concept="2pJPEk" id="7cphKbL6iya" role="mwGJk">
-            <node concept="2pJPED" id="7cphKbL6iyp" role="2pJPEn">
-              <ref role="2pJxaS" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
-            </node>
-          </node>
-        </node>
         <node concept="mw_s8" id="7cphKbL6ixX" role="1ZfhK$">
           <node concept="1Z2H0r" id="7cphKbL6iiF" role="mwGJk">
             <node concept="1YBJjd" id="7cphKbL6ikr" role="1Z2MuG">
@@ -4548,6 +4626,12 @@
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9TXUr" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9TXUs" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="7cphKbL6ii$" role="1YuTPh">
@@ -4560,13 +4644,6 @@
     <property role="3GE5qa" value="string.interpol" />
     <node concept="3clFbS" id="7cphKbL6khD" role="18ibNy">
       <node concept="1ZobV4" id="7cphKbL6m4S" role="3cqZAp">
-        <node concept="mw_s8" id="7cphKbL6m5g" role="1ZfhKB">
-          <node concept="2pJPEk" id="7cphKbL6m5c" role="mwGJk">
-            <node concept="2pJPED" id="7cphKbL6m5r" role="2pJPEn">
-              <ref role="2pJxaS" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
-            </node>
-          </node>
-        </node>
         <node concept="mw_s8" id="7cphKbL6m4V" role="1ZfhK$">
           <node concept="1Z2H0r" id="7cphKbL6khS" role="mwGJk">
             <node concept="2OqwBi" id="7cphKbL6kDQ" role="1Z2MuG">
@@ -4579,6 +4656,12 @@
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9G0v0" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9G0v1" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="1YaCAy" id="7cphKbL6khF" role="1YuTPh">
@@ -5207,5 +5290,226 @@
       </node>
     </node>
   </node>
+  <node concept="35pCF_" id="7J8ctKuSW1f">
+    <property role="3GE5qa" value="string" />
+    <property role="TrG5h" value="checkStringConstraint" />
+    <node concept="1YaCAy" id="7J8ctKuSW2R" role="35pZ6h">
+      <property role="TrG5h" value="stringTypeWithConstraint" />
+      <ref role="1YaFvo" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+    </node>
+    <node concept="3clFbS" id="7J8ctKuSW1h" role="2sgrp5">
+      <node concept="3clFbJ" id="3OxSopfXBdX" role="3cqZAp">
+        <node concept="3clFbS" id="3OxSopfXBdZ" role="3clFbx">
+          <node concept="3cpWs6" id="3OxSopfXChn" role="3cqZAp" />
+        </node>
+        <node concept="22lmx$" id="3OxSopfYXSp" role="3clFbw">
+          <node concept="3fqX7Q" id="3OxSopfZ04i" role="3uHU7w">
+            <node concept="2OqwBi" id="3OxSopfZ04k" role="3fr31v">
+              <node concept="2OqwBi" id="3OxSopfZ04l" role="2Oq$k0">
+                <node concept="1YBJjd" id="3OxSopfZ04m" role="2Oq$k0">
+                  <ref role="1YBMHb" node="7J8ctKuSW2R" resolve="stringTypeWithConstraint" />
+                </node>
+                <node concept="3TrEf2" id="3OxSopfZ04n" role="2OqNvi">
+                  <ref role="3Tt5mk" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+                </node>
+              </node>
+              <node concept="2qgKlT" id="3OxSopfZ04o" role="2OqNvi">
+                <ref role="37wK5l" to="tpfs:48bMILtL4il" resolve="isValid" />
+              </node>
+            </node>
+          </node>
+          <node concept="2OqwBi" id="3OxSopfXBZu" role="3uHU7B">
+            <node concept="2OqwBi" id="3OxSopfXBtO" role="2Oq$k0">
+              <node concept="1YBJjd" id="3OxSopfXBez" role="2Oq$k0">
+                <ref role="1YBMHb" node="7J8ctKuSW2R" resolve="stringTypeWithConstraint" />
+              </node>
+              <node concept="3TrEf2" id="3OxSopfXBOp" role="2OqNvi">
+                <ref role="3Tt5mk" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+              </node>
+            </node>
+            <node concept="3w_OXm" id="3OxSopfXCcO" role="2OqNvi" />
+          </node>
+        </node>
+      </node>
+      <node concept="Jncv_" id="3OxSopfXB8l" role="3cqZAp">
+        <ref role="JncvD" to="tpfo:h5OC9$H" resolve="StringLiteralRegexp" />
+        <node concept="3clFbS" id="3OxSopfXB8p" role="Jncv$">
+          <node concept="3cpWs8" id="3OxSopfXCk6" role="3cqZAp">
+            <node concept="3cpWsn" id="3OxSopfXCk9" role="3cpWs9">
+              <property role="TrG5h" value="value" />
+              <node concept="17QB3L" id="3OxSopfXCk5" role="1tU5fm" />
+              <node concept="2OqwBi" id="3OxSopfXCvD" role="33vP2m">
+                <node concept="Jnkvi" id="3OxSopfXCla" role="2Oq$k0">
+                  <ref role="1M0zk5" node="3OxSopfXB8r" resolve="literalRegex" />
+                </node>
+                <node concept="3TrcHB" id="3OxSopfXCFr" role="2OqNvi">
+                  <ref role="3TsBF5" to="tpfo:h5OCbxf" resolve="text" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3cpWs8" id="3OxSopfYa2X" role="3cqZAp">
+            <node concept="3cpWsn" id="3OxSopfYa2Y" role="3cpWs9">
+              <property role="TrG5h" value="regex" />
+              <node concept="17QB3L" id="3OxSopfY8FV" role="1tU5fm" />
+              <node concept="2OqwBi" id="3OxSopfYa2Z" role="33vP2m">
+                <node concept="2OqwBi" id="3OxSopfYa30" role="2Oq$k0">
+                  <node concept="1YBJjd" id="3OxSopfYa31" role="2Oq$k0">
+                    <ref role="1YBMHb" node="7J8ctKuSW2R" resolve="stringTypeWithConstraint" />
+                  </node>
+                  <node concept="3TrEf2" id="3OxSopfYa32" role="2OqNvi">
+                    <ref role="3Tt5mk" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+                  </node>
+                </node>
+                <node concept="2qgKlT" id="7NPLlCCxHcd" role="2OqNvi">
+                  <ref role="37wK5l" to="tpfs:hMuDF1A" resolve="getString" />
+                  <node concept="2ShNRf" id="7NPLlCCxHcf" role="37wK5m">
+                    <node concept="2T8Vx0" id="7NPLlCCxI3j" role="2ShVmc">
+                      <node concept="2I9FWS" id="7NPLlCCxI3l" role="2T96Bj">
+                        <ref role="2I9WkF" to="tpfo:h5Tukr7" resolve="MatchParensRegexp" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3J1_TO" id="3OxSopg2WdF" role="3cqZAp">
+            <node concept="3uVAMA" id="3OxSopg2WhG" role="1zxBo5">
+              <node concept="XOnhg" id="3OxSopg2WhH" role="1zc67B">
+                <property role="TrG5h" value="e" />
+                <node concept="nSUau" id="3OxSopg2WhI" role="1tU5fm">
+                  <node concept="3uibUv" id="3OxSopg2Wiq" role="nSUat">
+                    <ref role="3uigEE" to="wyt6:~Exception" resolve="Exception" />
+                  </node>
+                </node>
+              </node>
+              <node concept="3clFbS" id="3OxSopg2WhJ" role="1zc67A">
+                <node concept="2MkqsV" id="46RgPUMnflX" role="3cqZAp">
+                  <node concept="3cpWs3" id="46RgPUMngqh" role="2MkJ7o">
+                    <node concept="2OqwBi" id="46RgPUMngTp" role="3uHU7w">
+                      <node concept="37vLTw" id="46RgPUMngqk" role="2Oq$k0">
+                        <ref role="3cqZAo" node="3OxSopg2WhH" resolve="e" />
+                      </node>
+                      <node concept="liA8E" id="46RgPUMnhc1" role="2OqNvi">
+                        <ref role="37wK5l" to="wyt6:~Throwable.getMessage()" resolve="getMessage" />
+                      </node>
+                    </node>
+                    <node concept="Xl_RD" id="46RgPUMnfmL" role="3uHU7B">
+                      <property role="Xl_RC" value="Error evaluation constraint:" />
+                    </node>
+                  </node>
+                  <node concept="2OqwBi" id="46RgPUMnh_4" role="1urrMF">
+                    <node concept="3622Ei" id="46RgPUMnht4" role="2Oq$k0" />
+                    <node concept="liA8E" id="46RgPUMnhHJ" role="2OqNvi">
+                      <ref role="37wK5l" to="u78q:~EquationInfo.getNodeWithError()" resolve="getNodeWithError" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3SKdUt" id="3OxSopg2WGp" role="3cqZAp">
+                  <node concept="1PaTwC" id="3OxSopg2WGq" role="1aUNEU">
+                    <node concept="3oM_SD" id="3OxSopg2WGu" role="1PaTwD">
+                      <property role="3oM_SC" value="Nothing" />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WGw" role="1PaTwD">
+                      <property role="3oM_SC" value="to" />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WGz" role="1PaTwD">
+                      <property role="3oM_SC" value="do" />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WGB" role="1PaTwD">
+                      <property role="3oM_SC" value="here." />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WHW" role="1PaTwD">
+                      <property role="3oM_SC" value="The" />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WI2" role="1PaTwD">
+                      <property role="3oM_SC" value="regex" />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WI9" role="1PaTwD">
+                      <property role="3oM_SC" value="is" />
+                    </node>
+                    <node concept="3oM_SD" id="3OxSopg2WIh" role="1PaTwD">
+                      <property role="3oM_SC" value="invalid" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbS" id="3OxSopg2WdH" role="1zxBo7">
+              <node concept="3clFbJ" id="3OxSopfXCZT" role="3cqZAp">
+                <node concept="3clFbS" id="3OxSopfXCZV" role="3clFbx">
+                  <node concept="2MkqsV" id="3OxSopfY8Ho" role="3cqZAp">
+                    <node concept="2OqwBi" id="3OxSopfY8Pq" role="1urrMF">
+                      <node concept="3622Ei" id="3OxSopfY8HR" role="2Oq$k0" />
+                      <node concept="liA8E" id="3OxSopfY8X9" role="2OqNvi">
+                        <ref role="37wK5l" to="u78q:~EquationInfo.getNodeWithError()" resolve="getNodeWithError" />
+                      </node>
+                    </node>
+                    <node concept="2YIFZM" id="3OxSopfY9W_" role="2MkJ7o">
+                      <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
+                      <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
+                      <node concept="Xl_RD" id="3OxSopfY9Xg" role="37wK5m">
+                        <property role="Xl_RC" value="The string doesn't match the regular expression: %s" />
+                      </node>
+                      <node concept="37vLTw" id="3OxSopfYcnQ" role="37wK5m">
+                        <ref role="3cqZAo" node="3OxSopfYa2Y" resolve="regex" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3fqX7Q" id="3OxSopfY8EF" role="3clFbw">
+                  <node concept="2OqwBi" id="3OxSopfY8EH" role="3fr31v">
+                    <node concept="37vLTw" id="3OxSopfY8EI" role="2Oq$k0">
+                      <ref role="3cqZAo" node="3OxSopfXCk9" resolve="value" />
+                    </node>
+                    <node concept="liA8E" id="3OxSopfY8EJ" role="2OqNvi">
+                      <ref role="37wK5l" to="wyt6:~String.matches(java.lang.String)" resolve="matches" />
+                      <node concept="37vLTw" id="3OxSopfYa34" role="37wK5m">
+                        <ref role="3cqZAo" node="3OxSopfYa2Y" resolve="regex" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="JncvC" id="3OxSopfXB8r" role="JncvA">
+          <property role="TrG5h" value="literalRegex" />
+          <node concept="2jxLKc" id="3OxSopfXB8s" role="1tU5fm" />
+        </node>
+        <node concept="2OqwBi" id="3OxSopfXB96" role="JncvB">
+          <node concept="1YBJjd" id="3OxSopfXB97" role="2Oq$k0">
+            <ref role="1YBMHb" node="7J8ctKuSW1j" resolve="stringTypeWithConstraint" />
+          </node>
+          <node concept="3TrEf2" id="3OxSopfXB98" role="2OqNvi">
+            <ref role="3Tt5mk" to="5qo5:2xPWNWprAOp" resolve="constraint" />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="1YaCAy" id="7J8ctKuSW1j" role="1YuTPh">
+      <property role="TrG5h" value="stringTypeWithConstraint" />
+      <ref role="1YaFvo" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+    </node>
+  </node>
+  <node concept="2sgARr" id="2xPWNWpD3Pq">
+    <property role="3GE5qa" value="string" />
+    <property role="TrG5h" value="superTypeOf_StringtypeWithConstraint" />
+    <node concept="3clFbS" id="2xPWNWpD3Pr" role="2sgrp5">
+      <node concept="3clFbF" id="2xPWNWpDgA3" role="3cqZAp">
+        <node concept="2pJPEk" id="2xPWNWpDgA1" role="3clFbG">
+          <node concept="2pJPED" id="2xPWNWpDgA2" role="2pJPEn">
+            <ref role="2pJxaS" to="5qo5:4rZeNQ6OYR7" resolve="StringType" />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="1YaCAy" id="2xPWNWpD3Pt" role="1YuTPh">
+      <property role="TrG5h" value="stringTypeWithConstraint" />
+      <ref role="1YaFvo" to="5qo5:2xPWNWpoRmG" resolve="StringTypeWithConstraint" />
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/org.iets3.core.expr.simpleTypes.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/org.iets3.core.expr.simpleTypes.mpl
index dc877577ee..a9d11b9def 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/org.iets3.core.expr.simpleTypes.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.simpleTypes/org.iets3.core.expr.simpleTypes.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
     <dependency reexport="false">daafa647-f1f7-4b0b-b096-69cd7c8408c0(jetbrains.mps.baseLanguage.regexp)</dependency>
@@ -38,7 +37,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -67,7 +66,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/actions.mps
index 8bc7e47b7c..b20f81d977 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/actions.mps
@@ -59,7 +59,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/behavior.mps
index 4920b13e05..e75d7d601e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/behavior.mps
@@ -113,7 +113,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -126,13 +126,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -203,7 +204,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -229,7 +230,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1175845471038" name="jetbrains.mps.baseLanguage.collections.structure.ReverseOperation" flags="nn" index="35Qw8J" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
@@ -281,7 +281,7 @@
                     <node concept="3clFbF" id="7S4tmubDTU4" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubDU8u" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubDTU3" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubDTTV" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817e8" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubDUtm" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
@@ -289,9 +289,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubDTTV" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817e8" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubDTTW" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817e9" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -503,7 +503,7 @@
                     <node concept="2OqwBi" id="7bd8pkkAIAf" role="3clFbG">
                       <node concept="2OqwBi" id="7bd8pkkAHoq" role="2Oq$k0">
                         <node concept="37vLTw" id="7bd8pkkAH7A" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7bd8pkkAH26" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ea" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="7bd8pkkAHGP" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -518,9 +518,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7bd8pkkAH26" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ea" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7bd8pkkAH27" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817eb" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -577,7 +577,7 @@
                     <node concept="2OqwBi" id="7bd8pkk$AjA" role="3clFbG">
                       <node concept="2OqwBi" id="7bd8pkk$$SS" role="2Oq$k0">
                         <node concept="37vLTw" id="7bd8pkk$$A9" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7bd8pkk$$u1" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ec" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="7bd8pkk$_h5" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -592,9 +592,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7bd8pkk$$u1" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ec" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7bd8pkk$$u2" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ed" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -625,7 +625,7 @@
                     <node concept="2OqwBi" id="4J6AqiIYd9e" role="3clFbG">
                       <node concept="2OqwBi" id="4J6AqiIYd9f" role="2Oq$k0">
                         <node concept="37vLTw" id="4J6AqiIYd9g" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4J6AqiIYd9k" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ee" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="4J6AqiIYd9h" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -640,9 +640,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4J6AqiIYd9k" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ee" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4J6AqiIYd9l" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ef" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -687,7 +687,7 @@
                   <node concept="3clFbF" id="33mFrum_4eS" role="3cqZAp">
                     <node concept="2OqwBi" id="33mFrum_4wC" role="3clFbG">
                       <node concept="37vLTw" id="33mFrum_4eR" role="2Oq$k0">
-                        <ref role="3cqZAo" node="33mFrum_46Z" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817eg" resolve="it" />
                       </node>
                       <node concept="3TrcHB" id="33mFrum_4Vf" role="2OqNvi">
                         <ref role="3TsBF5" to="19m5:33mFrum_2JP" resolve="observable" />
@@ -695,9 +695,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="33mFrum_46Z" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817eg" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="33mFrum_470" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817eh" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -735,7 +735,7 @@
                   <node concept="3clFbF" id="4J6AqiIUUCd" role="3cqZAp">
                     <node concept="2OqwBi" id="4J6AqiIUUCe" role="3clFbG">
                       <node concept="37vLTw" id="4J6AqiIUUCf" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4J6AqiIUUCh" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817ei" resolve="it" />
                       </node>
                       <node concept="3TrcHB" id="3H4W4di$QNF" role="2OqNvi">
                         <ref role="3TsBF5" to="19m5:4J6AqiIShjW" resolve="observable" />
@@ -743,9 +743,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4J6AqiIUUCh" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ei" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4J6AqiIUUCi" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ej" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2286,7 +2286,7 @@
                     <node concept="3clFbF" id="4IV0h47Gaud" role="3cqZAp">
                       <node concept="2OqwBi" id="4IV0h47GaFW" role="3clFbG">
                         <node concept="37vLTw" id="4IV0h47Gauc" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4IV0h47GanV" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ek" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="4IV0h47GaTl" role="2OqNvi">
                           <ref role="37wK5l" to="4lqd:4IV0h47FYNX" resolve="guaranteesContextArguments" />
@@ -2294,9 +2294,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4IV0h47GanV" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ek" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4IV0h47GanW" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817el" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/constraints.mps
index c2ea744ed4..99d43afa6a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/constraints.mps
@@ -65,7 +65,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -148,7 +148,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/editor.mps
index 9a259ebcff..df9b1bea5b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/editor.mps
@@ -86,7 +86,7 @@
       <concept id="1186414860679" name="jetbrains.mps.lang.editor.structure.EditableStyleClassItem" flags="ln" index="VPxyj" />
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
       <concept id="1186414949600" name="jetbrains.mps.lang.editor.structure.AutoDeletableStyleClassItem" flags="ln" index="VPRnO" />
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -97,7 +97,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -120,7 +120,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -213,7 +213,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -226,7 +226,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -244,6 +244,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -265,7 +266,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G">
@@ -278,7 +279,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -353,7 +354,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -364,7 +365,6 @@
       <concept id="540871147943773365" name="jetbrains.mps.baseLanguage.collections.structure.SingleArgumentSequenceOperation" flags="nn" index="25WWJ4">
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
@@ -1928,7 +1928,7 @@
                       <node concept="17R0WA" id="4jf2Bbg3WnS" role="3uHU7w">
                         <node concept="2OqwBi" id="LBlPJUzjy0" role="3uHU7B">
                           <node concept="37vLTw" id="2BHiRxgmtw8" role="2Oq$k0">
-                            <ref role="3cqZAo" node="LBlPJUzjy9" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817em" resolve="it" />
                           </node>
                           <node concept="2NL2c5" id="4jf2Bbg3VqC" role="2OqNvi" />
                         </node>
@@ -1943,7 +1943,7 @@
                         </node>
                         <node concept="2OqwBi" id="LBlPJUzjy4" role="3uHU7B">
                           <node concept="37vLTw" id="2BHiRxglFWd" role="2Oq$k0">
-                            <ref role="3cqZAo" node="LBlPJUzjy9" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817em" resolve="it" />
                           </node>
                           <node concept="1mfA1w" id="LBlPJUzjy6" role="2OqNvi" />
                         </node>
@@ -1951,9 +1951,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="LBlPJUzjy9" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817em" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1P4c1XrzTlB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817en" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/intentions.mps
index f2de508474..da83326975 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/intentions.mps
@@ -5,7 +5,7 @@
     <use id="d7a92d38-f7db-40d0-8431-763b0c3c9f20" name="jetbrains.mps.lang.intentions" version="1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
   <imports>
@@ -58,6 +58,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -132,7 +133,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -146,7 +147,6 @@
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1227022159410" name="jetbrains.mps.baseLanguage.collections.structure.AddFirstElementOperation" flags="nn" index="2Ke4WJ" />
       <concept id="1227022179634" name="jetbrains.mps.baseLanguage.collections.structure.AddLastElementOperation" flags="nn" index="2Ke9KJ" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
     </language>
@@ -217,7 +217,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="agNjvGhIKA" role="1m5AlR">
                                     <node concept="37vLTw" id="agNjvGhHXp" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="agNjvGgZnK" resolve="action" />
+                                      <ref role="3cqZAo" node="4z0AnX817eq" resolve="action" />
                                     </node>
                                     <node concept="3TrEf2" id="agNjvGhJDn" role="2OqNvi">
                                       <ref role="3Tt5mk" to="19m5:7$TgoCYhZdu" resolve="expr" />
@@ -243,15 +243,15 @@
                                         </node>
                                         <node concept="TSZUe" id="agNjvGhAhj" role="2OqNvi">
                                           <node concept="37vLTw" id="agNjvGhATK" role="25WWJ7">
-                                            <ref role="3cqZAo" node="agNjvGhsJs" resolve="expr" />
+                                            <ref role="3cqZAo" node="4z0AnX817eo" resolve="expr" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="agNjvGhsJs" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817eo" role="1bW2Oz">
                                     <property role="TrG5h" value="expr" />
-                                    <node concept="2jxLKc" id="agNjvGhsJt" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817ep" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -261,7 +261,7 @@
                         <node concept="2OqwBi" id="agNjvGhEht" role="3clFbw">
                           <node concept="2OqwBi" id="agNjvGhCTZ" role="2Oq$k0">
                             <node concept="37vLTw" id="agNjvGhClX" role="2Oq$k0">
-                              <ref role="3cqZAo" node="agNjvGgZnK" resolve="action" />
+                              <ref role="3cqZAo" node="4z0AnX817eq" resolve="action" />
                             </node>
                             <node concept="3TrEf2" id="agNjvGhDxy" role="2OqNvi">
                               <ref role="3Tt5mk" to="19m5:7$TgoCYhZdu" resolve="expr" />
@@ -288,7 +288,7 @@
                                 <node concept="TSZUe" id="agNjvGgZnA" role="2OqNvi">
                                   <node concept="2OqwBi" id="agNjvGgZnC" role="25WWJ7">
                                     <node concept="37vLTw" id="agNjvGgZnD" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="agNjvGgZnK" resolve="action" />
+                                      <ref role="3cqZAo" node="4z0AnX817eq" resolve="action" />
                                     </node>
                                     <node concept="3TrEf2" id="agNjvGgZnE" role="2OqNvi">
                                       <ref role="3Tt5mk" to="19m5:7$TgoCYhZdu" resolve="expr" />
@@ -303,15 +303,15 @@
                       <node concept="3clFbF" id="agNjvGgZnG" role="3cqZAp">
                         <node concept="2OqwBi" id="agNjvGgZnH" role="3clFbG">
                           <node concept="37vLTw" id="agNjvGgZnI" role="2Oq$k0">
-                            <ref role="3cqZAo" node="agNjvGgZnK" resolve="action" />
+                            <ref role="3cqZAo" node="4z0AnX817eq" resolve="action" />
                           </node>
                           <node concept="3YRAZt" id="agNjvGgZnJ" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="agNjvGgZnK" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817eq" role="1bW2Oz">
                       <property role="TrG5h" value="action" />
-                      <node concept="2jxLKc" id="agNjvGgZnL" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817er" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -444,7 +444,7 @@
                         <node concept="2OqwBi" id="agNjvGrSHE" role="3clFbw">
                           <node concept="2OqwBi" id="agNjvGrRRX" role="2Oq$k0">
                             <node concept="37vLTw" id="agNjvGrR_W" role="2Oq$k0">
-                              <ref role="3cqZAo" node="agNjvGrR6Z" resolve="action" />
+                              <ref role="3cqZAo" node="4z0AnX817eu" resolve="action" />
                             </node>
                             <node concept="3TrEf2" id="agNjvGrSbv" role="2OqNvi">
                               <ref role="3Tt5mk" to="19m5:7$TgoCYhZdu" resolve="expr" />
@@ -466,7 +466,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="agNjvGrU8t" role="1m5AlR">
                                     <node concept="37vLTw" id="agNjvGrTJG" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="agNjvGrR6Z" resolve="action" />
+                                      <ref role="3cqZAo" node="4z0AnX817eu" resolve="action" />
                                     </node>
                                     <node concept="3TrEf2" id="agNjvGrUL0" role="2OqNvi">
                                       <ref role="3Tt5mk" to="19m5:7$TgoCYhZdu" resolve="expr" />
@@ -492,15 +492,15 @@
                                         </node>
                                         <node concept="TSZUe" id="agNjvGs9$b" role="2OqNvi">
                                           <node concept="37vLTw" id="agNjvGsaa_" role="25WWJ7">
-                                            <ref role="3cqZAo" node="agNjvGs2NX" resolve="expr" />
+                                            <ref role="3cqZAo" node="4z0AnX817es" resolve="expr" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="agNjvGs2NX" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817es" role="1bW2Oz">
                                     <property role="TrG5h" value="expr" />
-                                    <node concept="2jxLKc" id="agNjvGs2NY" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817et" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -522,7 +522,7 @@
                                 <node concept="TSZUe" id="agNjvGsjKH" role="2OqNvi">
                                   <node concept="2OqwBi" id="agNjvGslqS" role="25WWJ7">
                                     <node concept="37vLTw" id="agNjvGskwr" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="agNjvGrR6Z" resolve="action" />
+                                      <ref role="3cqZAo" node="4z0AnX817eu" resolve="action" />
                                     </node>
                                     <node concept="3TrEf2" id="agNjvGsmxo" role="2OqNvi">
                                       <ref role="3Tt5mk" to="19m5:7$TgoCYhZdu" resolve="expr" />
@@ -537,15 +537,15 @@
                       <node concept="3clFbF" id="agNjvGsnXu" role="3cqZAp">
                         <node concept="2OqwBi" id="agNjvGsoAv" role="3clFbG">
                           <node concept="37vLTw" id="agNjvGsnXs" role="2Oq$k0">
-                            <ref role="3cqZAo" node="agNjvGrR6Z" resolve="action" />
+                            <ref role="3cqZAo" node="4z0AnX817eu" resolve="action" />
                           </node>
                           <node concept="3YRAZt" id="agNjvGspwk" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="agNjvGrR6Z" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817eu" role="1bW2Oz">
                       <property role="TrG5h" value="action" />
-                      <node concept="2jxLKc" id="agNjvGrR70" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817ev" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/plugin.mps
index e98e278ca5..f184d7477a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/plugin.mps
@@ -45,7 +45,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -165,7 +165,7 @@
         <child id="1154542793668" name="componentType" index="3g7fb8" />
         <child id="1154542803372" name="initValue" index="3g7hyw" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -186,7 +186,7 @@
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -194,6 +194,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -270,7 +271,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -297,7 +298,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1197683403723" name="jetbrains.mps.baseLanguage.collections.structure.MapType" flags="in" index="3rvAFt">
         <child id="1197683466920" name="keyType" index="3rvQeY" />
@@ -565,7 +565,7 @@
                     <node concept="1rXfSq" id="3H4W4diDgU1" role="3clFbG">
                       <ref role="37wK5l" to="n9sl:Z4fkwzhf8Q" resolve="eval" />
                       <node concept="37vLTw" id="3H4W4diDgU2" role="37wK5m">
-                        <ref role="3cqZAo" node="3H4W4diDgUa" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817ew" resolve="it" />
                       </node>
                       <node concept="2ShNRf" id="k9boAuazL3" role="37wK5m">
                         <node concept="1pGfFk" id="k9boAua_aU" role="2ShVmc">
@@ -578,9 +578,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3H4W4diDgUa" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ew" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3H4W4diDgUb" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ex" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1214,7 +1214,7 @@
                                           <ref role="37wK5l" to="n9sl:Z4fkwzao$i" resolve="IDArg" />
                                           <node concept="2OqwBi" id="7bd8pkkwhmk" role="37wK5m">
                                             <node concept="37vLTw" id="7bd8pkkwgY6" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="7bd8pkkwf$F" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817ey" resolve="it" />
                                             </node>
                                             <node concept="3TrcHB" id="7bd8pkkwifV" role="2OqNvi">
                                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1223,7 +1223,7 @@
                                           <node concept="2OqwBi" id="7bd8pkkwkzb" role="37wK5m">
                                             <node concept="2OqwBi" id="7bd8pkkwj6Z" role="2Oq$k0">
                                               <node concept="37vLTw" id="7bd8pkkwiG0" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="7bd8pkkwf$F" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817ey" resolve="it" />
                                               </node>
                                               <node concept="3TrEf2" id="7bd8pkkwjS6" role="2OqNvi">
                                                 <ref role="3Tt5mk" to="zzzn:6zmBjqUkwsc" resolve="type" />
@@ -1235,9 +1235,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="7bd8pkkwf$F" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817ey" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="7bd8pkkwf$G" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817ez" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -2093,7 +2093,7 @@
                         <node concept="2OqwBi" id="7bd8pkk_nwf" role="3uHU7B">
                           <node concept="2OqwBi" id="7bd8pkk_nwg" role="2Oq$k0">
                             <node concept="37vLTw" id="7bd8pkk_nwh" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7bd8pkk_nww" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817e$" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="7bd8pkk_nwi" role="2OqNvi">
                               <ref role="3Tt5mk" to="19m5:33mFrumFlOJ" resolve="trigger" />
@@ -2116,7 +2116,7 @@
                               </node>
                               <node concept="2OqwBi" id="7bd8pkk_nws" role="1m5AlR">
                                 <node concept="37vLTw" id="7bd8pkk_nwt" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7bd8pkk_nww" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817e$" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="7bd8pkk_nwu" role="2OqNvi">
                                   <ref role="3Tt5mk" to="19m5:33mFrumFlOJ" resolve="trigger" />
@@ -2131,9 +2131,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7bd8pkk_nww" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817e$" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7bd8pkk_nwx" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817e_" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2647,7 +2647,7 @@
                             <node concept="1rXfSq" id="7Z_fDCwm5Yh" role="3clFbG">
                               <ref role="37wK5l" to="n9sl:Z4fkwzhf8Q" resolve="eval" />
                               <node concept="37vLTw" id="7Z_fDCwm5Yi" role="37wK5m">
-                                <ref role="3cqZAo" node="7Z_fDCwm5Yq" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817eA" resolve="it" />
                               </node>
                               <node concept="2OqwBi" id="7Z_fDCwm5Yj" role="37wK5m">
                                 <node concept="37vLTw" id="7Z_fDCwm5ZO" role="2Oq$k0">
@@ -2656,7 +2656,7 @@
                                 <node concept="liA8E" id="7Z_fDCwm5Yl" role="2OqNvi">
                                   <ref role="37wK5l" to="2ahs:6gYCXSucFwO" resolve="newChild" />
                                   <node concept="37vLTw" id="7Z_fDCwm5Ym" role="37wK5m">
-                                    <ref role="3cqZAo" node="7Z_fDCwm5Yq" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817eA" resolve="it" />
                                   </node>
                                   <node concept="3clFbT" id="7Z_fDCwm5Yn" role="37wK5m">
                                     <property role="3clFbU" value="true" />
@@ -2665,16 +2665,16 @@
                                     <property role="Xl_RC" value="exit action" />
                                   </node>
                                   <node concept="37vLTw" id="7Z_fDCwm5Yp" role="37wK5m">
-                                    <ref role="3cqZAo" node="7Z_fDCwm5Yq" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817eA" resolve="it" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="7Z_fDCwm5Yq" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817eA" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="7Z_fDCwm5Yr" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817eB" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2814,7 +2814,7 @@
                             <node concept="1rXfSq" id="k9boAuanvC" role="3clFbG">
                               <ref role="37wK5l" to="n9sl:Z4fkwzhf8Q" resolve="eval" />
                               <node concept="37vLTw" id="k9boAuanvD" role="37wK5m">
-                                <ref role="3cqZAo" node="k9boAuanvL" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817eC" resolve="it" />
                               </node>
                               <node concept="2OqwBi" id="k9boAuanvE" role="37wK5m">
                                 <node concept="37vLTw" id="k9boAuanvF" role="2Oq$k0">
@@ -2823,7 +2823,7 @@
                                 <node concept="liA8E" id="k9boAuanvG" role="2OqNvi">
                                   <ref role="37wK5l" to="2ahs:6gYCXSucFwO" resolve="newChild" />
                                   <node concept="37vLTw" id="k9boAuanvH" role="37wK5m">
-                                    <ref role="3cqZAo" node="k9boAuanvL" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817eC" resolve="it" />
                                   </node>
                                   <node concept="3clFbT" id="k9boAuanvI" role="37wK5m">
                                     <property role="3clFbU" value="true" />
@@ -2832,16 +2832,16 @@
                                     <property role="Xl_RC" value="entry action" />
                                   </node>
                                   <node concept="37vLTw" id="k9boAuanvK" role="37wK5m">
-                                    <ref role="3cqZAo" node="k9boAuanvL" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817eC" resolve="it" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="k9boAuanvL" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817eC" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="k9boAuanvM" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817eD" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -3173,7 +3173,7 @@
                         <node concept="2OqwBi" id="6XMQOZeaC19" role="3clFbG">
                           <node concept="2OqwBi" id="6XMQOZeaC1a" role="2Oq$k0">
                             <node concept="37vLTw" id="6XMQOZeaC1b" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6XMQOZeaC1h" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817eE" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="6XMQOZeaC1c" role="2OqNvi">
                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3193,9 +3193,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6XMQOZeaC1h" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817eE" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6XMQOZeaC1i" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817eF" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -3660,7 +3660,7 @@
                               <node concept="2OqwBi" id="7dN4gbaezqD" role="3uHU7B">
                                 <node concept="2OqwBi" id="7dN4gbaeynh" role="2Oq$k0">
                                   <node concept="37vLTw" id="7dN4gbaey6$" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="7dN4gbaexXT" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817eG" resolve="it" />
                                   </node>
                                   <node concept="3AY5_j" id="7dN4gbaeyTU" role="2OqNvi" />
                                 </node>
@@ -3676,7 +3676,7 @@
                               <node concept="2OqwBi" id="7dN4gbag1hH" role="2Oq$k0">
                                 <node concept="2OqwBi" id="7dN4gbaeAb9" role="2Oq$k0">
                                   <node concept="37vLTw" id="7dN4gbae_QI" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="7dN4gbaexXT" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817eG" resolve="it" />
                                   </node>
                                   <node concept="3AV6Ez" id="7dN4gbaeAAk" role="2OqNvi" />
                                 </node>
@@ -3691,9 +3691,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="7dN4gbaexXT" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817eG" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="7dN4gbaexXU" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817eH" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/structure.mps
index 21a11d5dc5..36b5fb0684 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/structure.mps
@@ -51,7 +51,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/typesystem.mps
index 2d25f3dc74..dea08b0ea5 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/models/typesystem.mps
@@ -62,7 +62,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -135,7 +135,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/org.iets3.core.expr.statemachines.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/org.iets3.core.expr.statemachines.mpl
index 164f0249a6..910a5ea88d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/org.iets3.core.expr.statemachines.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.statemachines/org.iets3.core.expr.statemachines.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -31,7 +30,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.behavior.mps
index 52e034a186..93d15cc9b7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.behavior.mps
@@ -76,7 +76,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -88,7 +88,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -97,6 +97,7 @@
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -142,7 +143,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -159,7 +160,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
     </language>
   </registry>
@@ -464,7 +464,7 @@
                       <node concept="2OqwBi" id="6KviS2K_Jer" role="3clFbG">
                         <node concept="2OqwBi" id="6KviS2K_IT0" role="2Oq$k0">
                           <node concept="37vLTw" id="6KviS2K_IES" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6KviS2K_IBV" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817eJ" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="6KviS2K_J7u" role="2OqNvi">
                             <ref role="37wK5l" node="4lCUG7OsQyi" resolve="resolve" />
@@ -476,9 +476,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6KviS2K_IBV" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817eJ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6KviS2K_IBW" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817eK" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -514,7 +514,7 @@
                         <node concept="3clFbF" id="pOv0_Xzl8M" role="3cqZAp">
                           <node concept="2OqwBi" id="pOv0_Xzlkc" role="3clFbG">
                             <node concept="37vLTw" id="pOv0_Xzl8L" role="2Oq$k0">
-                              <ref role="3cqZAo" node="pOv0_Xzl8E" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817eL" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="pOv0_XzlzC" role="2OqNvi">
                               <ref role="37wK5l" node="5wF$o0BLTj$" resolve="makeX" />
@@ -522,9 +522,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="pOv0_Xzl8E" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817eL" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="pOv0_Xzl8F" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817eM" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -931,7 +931,7 @@
                         <node concept="3clFbF" id="5wF$o0BM0z5" role="3cqZAp">
                           <node concept="2OqwBi" id="5wF$o0BM0J_" role="3clFbG">
                             <node concept="37vLTw" id="5wF$o0BM0z4" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5wF$o0BM0yX" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817eN" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="5wF$o0BM1ay" role="2OqNvi">
                               <ref role="37wK5l" node="5wF$o0BLWcU" resolve="makeX" />
@@ -939,9 +939,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5wF$o0BM0yX" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817eN" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5wF$o0BM0yY" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817eO" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.constraints.mps
index 9d9860aece..6c9a167b41 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.constraints.mps
@@ -34,7 +34,7 @@
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.editor.mps
index 841ad65573..469e3c77d1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.editor.mps
@@ -10,8 +10,8 @@
   <imports>
     <import index="r4b4" ref="r:1784e088-20fd-4fdb-96b8-bc57f0056d94(com.mbeddr.core.base.editor)" />
     <import index="z60i" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.awt(JDK/)" />
-    <import index="lzb2" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui(MPS.IDEA/)" />
     <import index="m999" ref="r:1d6bd88a-7393-4b32-b0e6-2d8b3094776e(org.iets3.core.expr.toplevel.editor)" />
+    <import index="lzb2" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui(MPS.IDEA/)" />
     <import index="3r88" ref="r:0561db97-8a79-45b6-97f8-a5fd9b986b44(org.iets3.core.expr.stringvalidation.structure)" implicit="true" />
     <import index="itrz" ref="r:80fb0853-eb3b-4e84-aebd-cc7fdb011d97(org.iets3.core.base.editor)" implicit="true" />
     <import index="tpco" ref="r:00000000-0000-4000-0000-011c89590284(jetbrains.mps.lang.core.editor)" implicit="true" />
@@ -42,7 +42,7 @@
       <concept id="1186414536763" name="jetbrains.mps.lang.editor.structure.BooleanStyleSheetItem" flags="ln" index="VOi$J">
         <property id="1186414551515" name="flag" index="VOm3f" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -51,7 +51,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1088185857835" name="jetbrains.mps.lang.editor.structure.InlineEditorComponent" flags="ig" index="1sVBvm" />
@@ -67,7 +67,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -96,7 +96,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -111,7 +111,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.structure.mps
index 746a666443..9d5657080f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.structure.mps
@@ -42,7 +42,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.typesystem.mps
index 282a7d5220..9164057870 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/models/org.iets3.core.expr.stringvalidation.typesystem.mps
@@ -50,7 +50,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -118,7 +118,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/org.iets3.core.expr.stringvalidation.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/org.iets3.core.expr.stringvalidation.mpl
index d1e0ae4eea..0fcd1bbae0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/org.iets3.core.expr.stringvalidation.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.stringvalidation/org.iets3.core.expr.stringvalidation.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">dbe08fb5-334d-4b64-86a0-622406fa0e87(org.iets3.core.expr.base.runtime)</dependency>
     <dependency reexport="false">f38b69a3-1d33-4f9b-84e0-ac1095df2998(org.iets3.core.expr.stringvalidation.runtime)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/actions.mps
index a1f56f5657..16f96c623b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/actions.mps
@@ -54,7 +54,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -90,7 +90,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/behavior.mps
index 79ea3d2f04..9f091447dd 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/behavior.mps
@@ -98,7 +98,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
@@ -108,7 +108,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -164,7 +164,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/constraints.mps
index 0357eece58..cc9a12934b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/constraints.mps
@@ -28,7 +28,7 @@
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/editor.mps
index 48d00c5a1e..734efa14aa 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/editor.mps
@@ -56,7 +56,7 @@
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
       <concept id="1233759184865" name="jetbrains.mps.lang.editor.structure.PunctuationRightStyleClassItem" flags="ln" index="11LMrY" />
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1219226236603" name="jetbrains.mps.lang.editor.structure.DrawBracketsStyleClassItem" flags="ln" index="3vyZuw" />
@@ -77,7 +77,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -119,7 +119,7 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -144,7 +144,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -186,7 +186,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/intentions.mps
index fe96d8d8f0..b534c282c8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/intentions.mps
@@ -96,7 +96,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/org.iets3.core.expr.temporal.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/org.iets3.core.expr.temporal.migration.mps
index dbf3be09ae..5079e5afaf 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/org.iets3.core.expr.temporal.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/org.iets3.core.expr.temporal.migration.mps
@@ -12,7 +12,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/plugin.mps
index 41c1ff6aba..0fbc24dc74 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/plugin.mps
@@ -4,13 +4,13 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="-1" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="-1" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="-1" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
   <imports>
@@ -117,7 +117,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -137,12 +137,13 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
         <child id="1199542501692" name="parameterType" index="1ajw0F" />
@@ -163,7 +164,7 @@
       <concept id="1138055754698" name="jetbrains.mps.lang.smodel.structure.SNodeType" flags="in" index="3Tqbb2" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -190,7 +191,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -575,13 +575,13 @@
                 <node concept="3clFbS" id="3nGzaxUtfSw" role="1bW5cS">
                   <node concept="3clFbF" id="3nGzaxUtfSx" role="3cqZAp">
                     <node concept="37vLTw" id="3nGzaxUtfSy" role="3clFbG">
-                      <ref role="3cqZAo" node="3nGzaxUtfSz" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817eU" resolve="it" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3nGzaxUtfSz" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817eU" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3nGzaxUtfS$" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817eV" role="1tU5fm" />
                 </node>
               </node>
               <node concept="1nlBCl" id="3nGzaxUtfS_" role="2S7zOq">
@@ -975,13 +975,13 @@
                 <node concept="3clFbS" id="4eVSC65wKJe" role="1bW5cS">
                   <node concept="3clFbF" id="4eVSC65wKJf" role="3cqZAp">
                     <node concept="37vLTw" id="4eVSC65wKJg" role="3clFbG">
-                      <ref role="3cqZAo" node="4eVSC65wKJh" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817eW" resolve="it" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4eVSC65wKJh" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817eW" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4eVSC65wKJi" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817eX" role="1tU5fm" />
                 </node>
               </node>
               <node concept="1nlBCl" id="4eVSC65wKJj" role="2S7zOq">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/structure.mps
index 11d7984780..5ee4378817 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/structure.mps
@@ -56,7 +56,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/typesystem.mps
index 75aa9ec879..5761975874 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/models/typesystem.mps
@@ -52,7 +52,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -132,7 +132,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -155,7 +155,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -177,6 +177,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -373,7 +374,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -409,7 +410,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -918,7 +918,7 @@
                       <ref role="1Pybhc" node="6belQKqkKUV" resolve="TemporalHelper" />
                       <node concept="2OqwBi" id="7Ndb$5paR9y" role="37wK5m">
                         <node concept="37vLTw" id="7Ndb$5paR9z" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6W4XqNw1Umu" resolve="slice" />
+                          <ref role="3cqZAo" node="4z0AnX817eS" resolve="slice" />
                         </node>
                         <node concept="3TrEf2" id="7Ndb$5paR9$" role="2OqNvi">
                           <ref role="3Tt5mk" to="l462:50smQ1V8QEi" resolve="pointInTime" />
@@ -935,7 +935,7 @@
                       </node>
                       <node concept="2OqwBi" id="6belQKqlyc4" role="1urrMF">
                         <node concept="37vLTw" id="6belQKqlxC7" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6W4XqNw1Umu" resolve="slice" />
+                          <ref role="3cqZAo" node="4z0AnX817eS" resolve="slice" />
                         </node>
                         <node concept="3TrEf2" id="6belQKqlz5j" role="2OqNvi">
                           <ref role="3Tt5mk" to="l462:50smQ1V8QEi" resolve="pointInTime" />
@@ -959,7 +959,7 @@
                             </node>
                             <node concept="2OqwBi" id="6belQKqo2Ua" role="1urrMF">
                               <node concept="37vLTw" id="6W4XqNw255u" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6W4XqNw1Umu" resolve="slice" />
+                                <ref role="3cqZAo" node="4z0AnX817eS" resolve="slice" />
                               </node>
                               <node concept="3TrEf2" id="6belQKqo3TC" role="2OqNvi">
                                 <ref role="3Tt5mk" to="l462:50smQ1V8QEi" resolve="pointInTime" />
@@ -1013,7 +1013,7 @@
                                     <node concept="3cpWs6" id="JblrdgIKOg" role="3cqZAp">
                                       <node concept="2OqwBi" id="JblrdgIKOi" role="3cqZAk">
                                         <node concept="37vLTw" id="JblrdgIKOj" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="1MJboh4O57C" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817eQ" resolve="it" />
                                         </node>
                                         <node concept="2qgKlT" id="JblrdgIKOk" role="2OqNvi">
                                           <ref role="37wK5l" to="pbu6:7GwCuf2r4g6" resolve="isSameAs" />
@@ -1026,9 +1026,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="1MJboh4O57C" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817eQ" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="1MJboh4O57D" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817eR" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1054,9 +1054,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="6W4XqNw1Umu" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817eS" role="1bW2Oz">
                 <property role="TrG5h" value="slice" />
-                <node concept="2jxLKc" id="6W4XqNw1Umv" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817eT" role="1tU5fm" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/org.iets3.core.expr.temporal.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/org.iets3.core.expr.temporal.mpl
index 4d64535925..94e607d3e4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/org.iets3.core.expr.temporal.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.temporal/org.iets3.core.expr.temporal.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -36,7 +35,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -64,7 +63,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/behavior.mps
index a90a17a924..a609d80bde 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/behavior.mps
@@ -59,7 +59,7 @@
       <concept id="1068580320020" name="jetbrains.mps.baseLanguage.structure.IntegerConstant" flags="nn" index="3cmrfG">
         <property id="1068580320021" name="value" index="3cmrfH" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -76,7 +76,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/plugin.mps
index cba3362651..7dacfdd470 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <use id="c3bfea76-7bba-4f0e-b5a2-ff4e7a8d7cf1" name="com.mbeddr.mpsutil.spreferences" version="0" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
@@ -60,7 +60,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/structure.mps
index 2d5aae0bff..e3bbcda10f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/models/structure.mps
@@ -37,7 +37,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/org.iets3.core.expr.testExecution.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/org.iets3.core.expr.testExecution.mpl
index 994e88c549..e82b96bf6c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/org.iets3.core.expr.testExecution.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.testExecution/org.iets3.core.expr.testExecution.mpl
@@ -11,13 +11,12 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <languageVersions>
     <language slang="l:c3bfea76-7bba-4f0e-b5a2-ff4e7a8d7cf1:com.mbeddr.mpsutil.spreferences" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -36,7 +35,7 @@
     <language slang="l:18bc6592-03a6-4e29-a83a-7ff23bde13ba:jetbrains.mps.lang.editor" version="14" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/main@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/main@generator.mps
index 1741770788..bfb46200ce 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/main@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/main@generator.mps
@@ -16,6 +16,8 @@
     <import index="y9hc" ref="r:2a717231-f4f6-48f0-b28c-75987331b4d9(org.iets3.core.expr.tests.rt.runtime)" />
     <import index="xk6s" ref="r:7961970e-5737-42e2-b144-9bef3ad8d077(org.iets3.core.expr.tests.behavior)" />
     <import index="18ew" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.util(MPS.Core/)" />
+    <import index="rbkg" ref="63b449db-0918-4a4a-a891-2c430ab133e4/java:org.junit.jupiter.api.extension(org.junit.junit5/)" />
+    <import index="yqm7" ref="63b449db-0918-4a4a-a891-2c430ab133e4/java:org.junit.jupiter.api(org.junit.junit5/)" />
     <import index="av4b" ref="r:ba7faab6-2b80-43d5-8b95-0c440665312c(org.iets3.core.expr.tests.structure)" implicit="true" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" implicit="true" />
     <import index="tp5g" ref="r:00000000-0000-4000-0000-011c89590388(jetbrains.mps.lang.test.structure)" implicit="true" />
@@ -29,7 +31,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
@@ -42,23 +44,22 @@
       <concept id="1137021947720" name="jetbrains.mps.baseLanguage.structure.ConceptFunction" flags="in" index="2VMwT0">
         <child id="1137022507850" name="body" index="2VODD2" />
       </concept>
-      <concept id="1070462154015" name="jetbrains.mps.baseLanguage.structure.StaticFieldDeclaration" flags="ig" index="Wx3nA">
-        <property id="6468716278899126575" name="isVolatile" index="2dlcS1" />
-        <property id="6468716278899125786" name="isTransient" index="2dld4O" />
-      </concept>
+      <concept id="1070462154015" name="jetbrains.mps.baseLanguage.structure.StaticFieldDeclaration" flags="ig" index="Wx3nA" />
       <concept id="1070475354124" name="jetbrains.mps.baseLanguage.structure.ThisExpression" flags="nn" index="Xjq3P" />
       <concept id="1070475587102" name="jetbrains.mps.baseLanguage.structure.SuperConstructorInvocation" flags="nn" index="XkiVB" />
       <concept id="1070475926800" name="jetbrains.mps.baseLanguage.structure.StringLiteral" flags="nn" index="Xl_RD">
         <property id="1070475926801" name="value" index="Xl_RC" />
       </concept>
+      <concept id="1182160077978" name="jetbrains.mps.baseLanguage.structure.AnonymousClassCreator" flags="nn" index="YeOm9">
+        <child id="1182160096073" name="cls" index="YeSDq" />
+      </concept>
       <concept id="1081236700937" name="jetbrains.mps.baseLanguage.structure.StaticMethodCall" flags="nn" index="2YIFZM">
         <reference id="1144433194310" name="classConcept" index="1Pybhc" />
       </concept>
-      <concept id="1070534058343" name="jetbrains.mps.baseLanguage.structure.NullLiteral" flags="nn" index="10Nm6u" />
-      <concept id="1068390468200" name="jetbrains.mps.baseLanguage.structure.FieldDeclaration" flags="ig" index="312cEg">
-        <property id="8606350594693632173" name="isTransient" index="eg7rD" />
-        <property id="1240249534625" name="isVolatile" index="34CwA1" />
+      <concept id="1070533707846" name="jetbrains.mps.baseLanguage.structure.StaticFieldReference" flags="nn" index="10M0yZ">
+        <reference id="1144433057691" name="classifier" index="1PxDUh" />
       </concept>
+      <concept id="1070534058343" name="jetbrains.mps.baseLanguage.structure.NullLiteral" flags="nn" index="10Nm6u" />
       <concept id="1068390468198" name="jetbrains.mps.baseLanguage.structure.ClassConcept" flags="ig" index="312cEu">
         <child id="1165602531693" name="superclass" index="1zkMxy" />
       </concept>
@@ -66,6 +67,9 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
+        <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
+      </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -99,12 +103,13 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
       <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk" />
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
+        <property id="521412098689998745" name="nonStatic" index="2bfB8j" />
         <child id="5375687026011219971" name="member" index="jymVt" unordered="true" />
       </concept>
       <concept id="7812454656619025412" name="jetbrains.mps.baseLanguage.structure.LocalMethodCall" flags="nn" index="1rXfSq" />
@@ -115,14 +120,18 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
+      <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
       <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
       <concept id="1116615150612" name="jetbrains.mps.baseLanguage.structure.ClassifierClassExpression" flags="nn" index="3VsKOn">
         <reference id="1116615189566" name="classifier" index="3VsUkX" />
       </concept>
+      <concept id="1170345865475" name="jetbrains.mps.baseLanguage.structure.AnonymousClass" flags="ig" index="1Y3b0j">
+        <reference id="1170346070688" name="classifier" index="1Y3XeK" />
+      </concept>
     </language>
     <language id="b401a680-8325-4110-8fd3-84331ff25bef" name="jetbrains.mps.lang.generator">
       <concept id="1219952072943" name="jetbrains.mps.lang.generator.structure.DropRootRule" flags="lg" index="aNPBN">
@@ -141,7 +150,7 @@
         <reference id="1168619429071" name="applicableConcept" index="n9lRv" />
       </concept>
       <concept id="1095672379244" name="jetbrains.mps.lang.generator.structure.TemplateFragment" flags="ng" index="raruj" />
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167168920554" name="jetbrains.mps.lang.generator.structure.BaseMappingRule_Condition" flags="in" index="30G5F_" />
@@ -224,7 +233,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -259,87 +268,91 @@
   <node concept="312cEu" id="21ieoTcCJQ7">
     <property role="TrG5h" value="MPSTestCase" />
     <node concept="2tJIrI" id="36bouteoEbE" role="jymVt" />
-    <node concept="Wx3nA" id="5iphLhCeqoT" role="jymVt">
-      <property role="TrG5h" value="ourParamCache" />
-      <property role="2dlcS1" value="false" />
+    <node concept="Wx3nA" id="4dqLDEZ0eMU" role="jymVt">
       <property role="3TUv4t" value="true" />
-      <property role="2dld4O" value="false" />
-      <node concept="3uibUv" id="5iphLhCeqoU" role="1tU5fm">
-        <ref role="3uigEE" to="tp6m:wQDhRCClc9" resolve="TestParametersCache" />
+      <property role="TrG5h" value="ourParametersCacheExtension" />
+      <node concept="3Tm6S6" id="4dqLDEZ0eMW" role="1B3o_S" />
+      <node concept="3uibUv" id="4dqLDEZ0gjZ" role="1tU5fm">
+        <ref role="3uigEE" to="tp6m:4dqLDEYYwgD" resolve="TestParametersCacheExtension" />
       </node>
-      <node concept="2ShNRf" id="5iphLhCeqoV" role="33vP2m">
-        <node concept="1pGfFk" id="5iphLhCeqoW" role="2ShVmc">
-          <ref role="37wK5l" to="tp6m:5LbRjS1nRFZ" resolve="TestParametersCache" />
-          <node concept="3VsKOn" id="5iphLhCeqoX" role="37wK5m">
-            <ref role="3VsUkX" node="21ieoTcCJQ7" resolve="MPSTestCase" />
-          </node>
-          <node concept="Xl_RD" id="1thG8hDHxlT" role="37wK5m">
-            <property role="Xl_RC" value="project path" />
-            <node concept="17Uvod" id="1thG8hDHxlU" role="lGtFl">
-              <property role="2qtEX9" value="value" />
-              <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
-              <node concept="3zFVjK" id="1thG8hDHxlV" role="3zH0cK">
-                <node concept="3clFbS" id="1thG8hDHxlW" role="2VODD2">
-                  <node concept="3clFbF" id="1thG8hDHxlX" role="3cqZAp">
-                    <node concept="2YIFZM" id="1thG8hDHxlY" role="3clFbG">
-                      <ref role="1Pybhc" to="tgi8:L0xQjiTXbn" resolve="TestsUtil" />
-                      <ref role="37wK5l" to="tgi8:L0xQjiTXbx" resolve="getProjectPath" />
-                      <node concept="2OqwBi" id="1thG8hDHxlZ" role="37wK5m">
-                        <node concept="30H73N" id="1thG8hDHxm0" role="2Oq$k0" />
-                        <node concept="I4A8Y" id="1thG8hDHxm1" role="2OqNvi" />
+      <node concept="2ShNRf" id="4dqLDEZ0gCn" role="33vP2m">
+        <node concept="1pGfFk" id="4dqLDEZ0gzP" role="2ShVmc">
+          <ref role="37wK5l" to="tp6m:4dqLDEYYHvm" resolve="TestParametersCacheExtension" />
+          <node concept="2ShNRf" id="5iphLhCeqoV" role="37wK5m">
+            <node concept="1pGfFk" id="5iphLhCeqoW" role="2ShVmc">
+              <ref role="37wK5l" to="tp6m:5LbRjS1nRFZ" resolve="TestParametersCache" />
+              <node concept="3VsKOn" id="5iphLhCeqoX" role="37wK5m">
+                <ref role="3VsUkX" node="21ieoTcCJQ7" resolve="MPSTestCase" />
+              </node>
+              <node concept="Xl_RD" id="1thG8hDHxlT" role="37wK5m">
+                <property role="Xl_RC" value="project path" />
+                <node concept="17Uvod" id="1thG8hDHxlU" role="lGtFl">
+                  <property role="2qtEX9" value="value" />
+                  <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
+                  <node concept="3zFVjK" id="1thG8hDHxlV" role="3zH0cK">
+                    <node concept="3clFbS" id="1thG8hDHxlW" role="2VODD2">
+                      <node concept="3clFbF" id="1thG8hDHxlX" role="3cqZAp">
+                        <node concept="2YIFZM" id="1thG8hDHxlY" role="3clFbG">
+                          <ref role="1Pybhc" to="tgi8:L0xQjiTXbn" resolve="TestsUtil" />
+                          <ref role="37wK5l" to="tgi8:L0xQjiTXbx" resolve="getProjectPath" />
+                          <node concept="2OqwBi" id="1thG8hDHxlZ" role="37wK5m">
+                            <node concept="30H73N" id="1thG8hDHxm0" role="2Oq$k0" />
+                            <node concept="I4A8Y" id="1thG8hDHxm1" role="2OqNvi" />
+                          </node>
+                        </node>
                       </node>
                     </node>
                   </node>
                 </node>
               </node>
-            </node>
-          </node>
-          <node concept="Xl_RD" id="1thG8hDHxm2" role="37wK5m">
-            <property role="Xl_RC" value="model.fq.name" />
-            <node concept="17Uvod" id="1thG8hDHxm3" role="lGtFl">
-              <property role="2qtEX9" value="value" />
-              <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
-              <node concept="3zFVjK" id="1thG8hDHxm4" role="3zH0cK">
-                <node concept="3clFbS" id="1thG8hDHxm5" role="2VODD2">
-                  <node concept="3clFbF" id="1thG8hDHxm6" role="3cqZAp">
-                    <node concept="2OqwBi" id="1thG8hDHxm7" role="3clFbG">
-                      <node concept="2OqwBi" id="1thG8hDHxm8" role="2Oq$k0">
-                        <node concept="liA8E" id="1thG8hDHxm9" role="2OqNvi">
-                          <ref role="37wK5l" to="mhbf:~SModel.getReference()" resolve="getReference" />
-                        </node>
-                        <node concept="2JrnkZ" id="1thG8hDHxma" role="2Oq$k0">
-                          <node concept="2OqwBi" id="1thG8hDHxmb" role="2JrQYb">
-                            <node concept="1iwH7S" id="1thG8hDHxmc" role="2Oq$k0" />
-                            <node concept="1st3f0" id="1thG8hDHxmd" role="2OqNvi" />
+              <node concept="Xl_RD" id="1thG8hDHxm2" role="37wK5m">
+                <property role="Xl_RC" value="model.fq.name" />
+                <node concept="17Uvod" id="1thG8hDHxm3" role="lGtFl">
+                  <property role="2qtEX9" value="value" />
+                  <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
+                  <node concept="3zFVjK" id="1thG8hDHxm4" role="3zH0cK">
+                    <node concept="3clFbS" id="1thG8hDHxm5" role="2VODD2">
+                      <node concept="3clFbF" id="1thG8hDHxm6" role="3cqZAp">
+                        <node concept="2OqwBi" id="1thG8hDHxm7" role="3clFbG">
+                          <node concept="2OqwBi" id="1thG8hDHxm8" role="2Oq$k0">
+                            <node concept="liA8E" id="1thG8hDHxm9" role="2OqNvi">
+                              <ref role="37wK5l" to="mhbf:~SModel.getReference()" resolve="getReference" />
+                            </node>
+                            <node concept="2JrnkZ" id="1thG8hDHxma" role="2Oq$k0">
+                              <node concept="2OqwBi" id="1thG8hDHxmb" role="2JrQYb">
+                                <node concept="1iwH7S" id="1thG8hDHxmc" role="2Oq$k0" />
+                                <node concept="1st3f0" id="1thG8hDHxmd" role="2OqNvi" />
+                              </node>
+                            </node>
+                          </node>
+                          <node concept="liA8E" id="1thG8hDHxme" role="2OqNvi">
+                            <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
                           </node>
                         </node>
                       </node>
-                      <node concept="liA8E" id="1thG8hDHxme" role="2OqNvi">
-                        <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
-                      </node>
                     </node>
                   </node>
                 </node>
               </node>
-            </node>
-          </node>
-          <node concept="3clFbT" id="1thG8hDHxmf" role="37wK5m">
-            <property role="3clFbU" value="false" />
-            <node concept="17Uvod" id="1thG8hDHxmg" role="lGtFl">
-              <property role="2qtEX9" value="value" />
-              <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068580123137/1068580123138" />
-              <node concept="3zFVjK" id="1thG8hDHxmh" role="3zH0cK">
-                <node concept="3clFbS" id="1thG8hDHxmi" role="2VODD2">
-                  <node concept="3clFbF" id="1thG8hDHxmj" role="3cqZAp">
-                    <node concept="2OqwBi" id="1thG8hDHxmk" role="3clFbG">
-                      <node concept="35c_gC" id="1thG8hDHxml" role="2Oq$k0">
-                        <ref role="35c_gD" to="tp5g:4qWC2JVrBca" resolve="TestInfo" />
-                      </node>
-                      <node concept="2qgKlT" id="1thG8hDHxmm" role="2OqNvi">
-                        <ref role="37wK5l" to="tp5o:ThWTaQhG7P" resolve="reOpenProject" />
-                        <node concept="2OqwBi" id="1thG8hDHxmn" role="37wK5m">
-                          <node concept="30H73N" id="1thG8hDHxmo" role="2Oq$k0" />
-                          <node concept="I4A8Y" id="1thG8hDHxmp" role="2OqNvi" />
+              <node concept="3clFbT" id="1thG8hDHxmf" role="37wK5m">
+                <property role="3clFbU" value="false" />
+                <node concept="17Uvod" id="1thG8hDHxmg" role="lGtFl">
+                  <property role="2qtEX9" value="value" />
+                  <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068580123137/1068580123138" />
+                  <node concept="3zFVjK" id="1thG8hDHxmh" role="3zH0cK">
+                    <node concept="3clFbS" id="1thG8hDHxmi" role="2VODD2">
+                      <node concept="3clFbF" id="1thG8hDHxmj" role="3cqZAp">
+                        <node concept="2OqwBi" id="1thG8hDHxmk" role="3clFbG">
+                          <node concept="35c_gC" id="1thG8hDHxml" role="2Oq$k0">
+                            <ref role="35c_gD" to="tp5g:4qWC2JVrBca" resolve="TestInfo" />
+                          </node>
+                          <node concept="2qgKlT" id="1thG8hDHxmm" role="2OqNvi">
+                            <ref role="37wK5l" to="tp5o:ThWTaQhG7P" resolve="reOpenProject" />
+                            <node concept="2OqwBi" id="1thG8hDHxmn" role="37wK5m">
+                              <node concept="30H73N" id="1thG8hDHxmo" role="2Oq$k0" />
+                              <node concept="I4A8Y" id="1thG8hDHxmp" role="2OqNvi" />
+                            </node>
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -350,46 +363,30 @@
           </node>
         </node>
       </node>
-      <node concept="2AHcQZ" id="5iphLhCeqpv" role="2AJF6D">
-        <ref role="2AI5Lk" to="rjhg:~ClassRule" resolve="ClassRule" />
-      </node>
-      <node concept="3Tm1VV" id="5iphLhCeqpw" role="1B3o_S" />
-    </node>
-    <node concept="2tJIrI" id="1thG8hDHvv6" role="jymVt" />
-    <node concept="312cEg" id="2o2_RLEwHPG" role="jymVt">
-      <property role="34CwA1" value="false" />
-      <property role="eg7rD" value="false" />
-      <property role="TrG5h" value="myWithCommandRule" />
-      <property role="3TUv4t" value="true" />
-      <node concept="3Tm1VV" id="2o2_RLEwHPH" role="1B3o_S" />
-      <node concept="3uibUv" id="2o2_RLEwHPI" role="1tU5fm">
-        <ref role="3uigEE" to="tp6m:BYb1OGotvJ" resolve="RunWithCommand" />
-      </node>
-      <node concept="2ShNRf" id="2o2_RLEwHPJ" role="33vP2m">
-        <node concept="1pGfFk" id="2o2_RLEwHPK" role="2ShVmc">
-          <ref role="37wK5l" to="tp6m:BYb1OGotCN" resolve="RunWithCommand" />
-          <node concept="Xjq3P" id="2o2_RLEwHPL" role="37wK5m" />
-        </node>
-      </node>
-      <node concept="2AHcQZ" id="2o2_RLEwHPM" role="2AJF6D">
-        <ref role="2AI5Lk" to="rjhg:~Rule" resolve="Rule" />
+      <node concept="2AHcQZ" id="4dqLDEZ0lE$" role="2AJF6D">
+        <ref role="2AI5Lk" to="rbkg:~RegisterExtension" resolve="RegisterExtension" />
       </node>
     </node>
-    <node concept="2tJIrI" id="2o2_RLEwLYv" role="jymVt" />
+    <node concept="2tJIrI" id="7MpFXKneA8_" role="jymVt" />
     <node concept="3clFbW" id="5iphLhCe51H" role="jymVt">
       <node concept="3cqZAl" id="5iphLhCe51J" role="3clF45" />
       <node concept="3Tm1VV" id="5iphLhCe51K" role="1B3o_S" />
       <node concept="3clFbS" id="5iphLhCe51L" role="3clF47">
         <node concept="XkiVB" id="5iphLhCfiRX" role="3cqZAp">
           <ref role="37wK5l" to="tp6m:5LbRjS1pM4D" resolve="BaseTransformationTest" />
-          <node concept="37vLTw" id="28iRK7sGFub" role="37wK5m">
-            <ref role="3cqZAo" node="5iphLhCeqoT" resolve="ourParamCache" />
+          <node concept="2OqwBi" id="4dqLDEZ0ng6" role="37wK5m">
+            <node concept="10M0yZ" id="7zD2yq84n12" role="2Oq$k0">
+              <ref role="3cqZAo" node="4dqLDEZ0eMU" resolve="ourParametersCacheExtension" />
+              <ref role="1PxDUh" node="21ieoTcCJQ7" resolve="MPSTestCase" />
+            </node>
+            <node concept="liA8E" id="4dqLDEZ0nBp" role="2OqNvi">
+              <ref role="37wK5l" to="tp6m:4dqLDEYZ0EK" resolve="getParametersCache" />
+            </node>
           </node>
         </node>
       </node>
     </node>
     <node concept="2tJIrI" id="1thG8hDHwqv" role="jymVt" />
-    <node concept="2tJIrI" id="28iRK7sGp1j" role="jymVt" />
     <node concept="3clFb_" id="hHqygjQ" role="jymVt">
       <property role="TrG5h" value="testMethod" />
       <node concept="3cqZAl" id="hHqygjR" role="3clF45" />
@@ -432,7 +429,7 @@
         </node>
       </node>
       <node concept="2AHcQZ" id="hHqB0C0" role="2AJF6D">
-        <ref role="2AI5Lk" to="rjhg:~Test" resolve="Test" />
+        <ref role="2AI5Lk" to="yqm7:~Test" resolve="Test" />
       </node>
       <node concept="17Uvod" id="hHqDnzU" role="lGtFl">
         <property role="2qtEX9" value="name" />
@@ -457,12 +454,6 @@
       <node concept="3clFbS" id="hHDKHLk" role="3clF47">
         <node concept="3clFbF" id="7GPsQwM7lAo" role="3cqZAp">
           <node concept="2OqwBi" id="7GPsQwM7mxW" role="3clFbG">
-            <node concept="2ShNRf" id="7GPsQwM7lAk" role="2Oq$k0">
-              <node concept="1pGfFk" id="7GPsQwM7m2L" role="2ShVmc">
-                <ref role="37wK5l" node="7GPsQwM7bjr" resolve="MPSTestCase.TestBody" />
-                <node concept="Xjq3P" id="7GPsQwM7mos" role="37wK5m" />
-              </node>
-            </node>
             <node concept="liA8E" id="7GPsQwM7mGE" role="2OqNvi">
               <ref role="37wK5l" node="hLF7ERe" resolve="test_NodesTestMethod" />
               <node concept="1ZhdrF" id="7GPsQwM7no7" role="lGtFl">
@@ -486,6 +477,12 @@
                 </node>
               </node>
             </node>
+            <node concept="2ShNRf" id="7GPsQwM7lAk" role="2Oq$k0">
+              <node concept="1pGfFk" id="7GPsQwM7m2L" role="2ShVmc">
+                <ref role="37wK5l" node="7GPsQwM7bjr" resolve="MPSTestCase.TestBody" />
+                <node concept="Xjq3P" id="7GPsQwM7mos" role="37wK5m" />
+              </node>
+            </node>
           </node>
         </node>
       </node>
@@ -519,9 +516,6 @@
           </node>
         </node>
       </node>
-      <node concept="2AHcQZ" id="6xD3woJoRYa" role="2AJF6D">
-        <ref role="2AI5Lk" to="fyhk:~MPSLaunch" resolve="MPSLaunch" />
-      </node>
       <node concept="2tJIrI" id="7Uk8E1kIle$" role="jymVt" />
       <node concept="3clFb_" id="hLF7ERe" role="jymVt">
         <property role="TrG5h" value="test_NodesTestMethod" />
@@ -600,6 +594,9 @@
     <node concept="3uibUv" id="36boutep3OR" role="1zkMxy">
       <ref role="3uigEE" to="tp6m:e$hNri8RAJ" resolve="BaseTransformationTest" />
     </node>
+    <node concept="2AHcQZ" id="7zD2yq841pU" role="2AJF6D">
+      <ref role="2AI5Lk" to="fyhk:~MPSLaunch" resolve="MPSLaunch" />
+    </node>
   </node>
   <node concept="jVnub" id="7wjZwvO2CqQ">
     <property role="TrG5h" value="switch_testItems" />
@@ -632,54 +629,83 @@
             <node concept="3cqZAl" id="7wjZwvO2LhE" role="3clF45" />
             <node concept="3Tm1VV" id="7wjZwvO2LhF" role="1B3o_S" />
             <node concept="3clFbS" id="7wjZwvO2LhG" role="3clF47">
-              <node concept="3cpWs8" id="7wjZwvO2LhH" role="3cqZAp">
-                <node concept="3cpWsn" id="7wjZwvO2LhI" role="3cpWs9">
-                  <property role="TrG5h" value="ti" />
-                  <node concept="3Tqbb2" id="7wjZwvO2LhJ" role="1tU5fm">
-                    <ref role="ehGHo" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
-                  </node>
-                  <node concept="1PxgMI" id="7wjZwvO2LhK" role="33vP2m">
-                    <node concept="1rXfSq" id="7wjZwvO2LhL" role="1m5AlR">
-                      <ref role="37wK5l" to="tp6m:hLFg$wA" resolve="getRealNodeById" />
-                      <node concept="Xl_RD" id="7wjZwvO2LhM" role="37wK5m">
-                        <property role="Xl_RC" value="nodeId" />
-                        <node concept="17Uvod" id="7wjZwvO2LhN" role="lGtFl">
-                          <property role="2qtEX9" value="value" />
-                          <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
-                          <node concept="3zFVjK" id="7wjZwvO2LhO" role="3zH0cK">
-                            <node concept="3clFbS" id="7wjZwvO2LhP" role="2VODD2">
-                              <node concept="3clFbF" id="7wjZwvO2LhQ" role="3cqZAp">
-                                <node concept="2OqwBi" id="7wjZwvO2LhR" role="3clFbG">
-                                  <node concept="2OqwBi" id="7wjZwvO2LhS" role="2Oq$k0">
-                                    <node concept="liA8E" id="7wjZwvO2LhT" role="2OqNvi">
-                                      <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
-                                    </node>
-                                    <node concept="2JrnkZ" id="7wjZwvO2LhU" role="2Oq$k0">
-                                      <node concept="30H73N" id="7wjZwvO2LhV" role="2JrQYb" />
+              <node concept="3clFbF" id="7MpFXKnj0WA" role="3cqZAp">
+                <node concept="1rXfSq" id="7MpFXKnj0W$" role="3clFbG">
+                  <ref role="37wK5l" to="tp6m:ZcWKOigGgW" resolve="runWithinCommand" />
+                  <node concept="2ShNRf" id="7MpFXKnGvjc" role="37wK5m">
+                    <node concept="YeOm9" id="7MpFXKnGw3l" role="2ShVmc">
+                      <node concept="1Y3b0j" id="7MpFXKnGw3o" role="YeSDq">
+                        <property role="2bfB8j" value="true" />
+                        <property role="373rjd" value="true" />
+                        <ref role="1Y3XeK" to="tp6m:ZcWKOiCwiP" resolve="BaseTestBody.ExceptionRunnable" />
+                        <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+                        <node concept="3Tm1VV" id="7MpFXKnGw3p" role="1B3o_S" />
+                        <node concept="3clFb_" id="7MpFXKnGw3C" role="jymVt">
+                          <property role="TrG5h" value="run" />
+                          <node concept="3Tm1VV" id="7MpFXKnGw3E" role="1B3o_S" />
+                          <node concept="3cqZAl" id="7MpFXKnGw3F" role="3clF45" />
+                          <node concept="3uibUv" id="7MpFXKnGw3G" role="Sfmx6">
+                            <ref role="3uigEE" to="wyt6:~Exception" resolve="Exception" />
+                          </node>
+                          <node concept="3clFbS" id="7MpFXKnGw3H" role="3clF47">
+                            <node concept="3cpWs8" id="7wjZwvO2LhH" role="3cqZAp">
+                              <node concept="3cpWsn" id="7wjZwvO2LhI" role="3cpWs9">
+                                <property role="TrG5h" value="ti" />
+                                <node concept="3Tqbb2" id="7wjZwvO2LhJ" role="1tU5fm">
+                                  <ref role="ehGHo" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
+                                </node>
+                                <node concept="1PxgMI" id="7wjZwvO2LhK" role="33vP2m">
+                                  <node concept="1rXfSq" id="7wjZwvO2LhL" role="1m5AlR">
+                                    <ref role="37wK5l" to="tp6m:hLFg$wA" resolve="getRealNodeById" />
+                                    <node concept="Xl_RD" id="7wjZwvO2LhM" role="37wK5m">
+                                      <property role="Xl_RC" value="nodeId" />
+                                      <node concept="17Uvod" id="7wjZwvO2LhN" role="lGtFl">
+                                        <property role="2qtEX9" value="value" />
+                                        <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
+                                        <node concept="3zFVjK" id="7wjZwvO2LhO" role="3zH0cK">
+                                          <node concept="3clFbS" id="7wjZwvO2LhP" role="2VODD2">
+                                            <node concept="3clFbF" id="7wjZwvO2LhQ" role="3cqZAp">
+                                              <node concept="2OqwBi" id="7wjZwvO2LhR" role="3clFbG">
+                                                <node concept="2OqwBi" id="7wjZwvO2LhS" role="2Oq$k0">
+                                                  <node concept="liA8E" id="7wjZwvO2LhT" role="2OqNvi">
+                                                    <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
+                                                  </node>
+                                                  <node concept="2JrnkZ" id="7wjZwvO2LhU" role="2Oq$k0">
+                                                    <node concept="30H73N" id="7wjZwvO2LhV" role="2JrQYb" />
+                                                  </node>
+                                                </node>
+                                                <node concept="liA8E" id="7wjZwvO2LhW" role="2OqNvi">
+                                                  <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                                                </node>
+                                              </node>
+                                            </node>
+                                          </node>
+                                        </node>
+                                      </node>
                                     </node>
                                   </node>
-                                  <node concept="liA8E" id="7wjZwvO2LhW" role="2OqNvi">
-                                    <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                                  <node concept="chp4Y" id="7wjZwvO2Mbn" role="3oSUPX">
+                                    <ref role="cht4Q" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
                                   </node>
                                 </node>
                               </node>
                             </node>
+                            <node concept="3clFbF" id="7wjZwvOaV2a" role="3cqZAp">
+                              <node concept="2YIFZM" id="7wjZwvOaVAJ" role="3clFbG">
+                                <ref role="37wK5l" to="y9hc:7wjZwvOaQXf" resolve="doExecuteTest" />
+                                <ref role="1Pybhc" to="y9hc:7wjZwvOaQW4" resolve="TestRunner" />
+                                <node concept="37vLTw" id="7wjZwvOaVMA" role="37wK5m">
+                                  <ref role="3cqZAo" node="7wjZwvO2LhI" resolve="ti" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                          <node concept="2AHcQZ" id="7MpFXKnGw3J" role="2AJF6D">
+                            <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="chp4Y" id="7wjZwvO2Mbn" role="3oSUPX">
-                      <ref role="cht4Q" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
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-                  </node>
-                </node>
-              </node>
-              <node concept="3clFbF" id="7wjZwvOaV2a" role="3cqZAp">
-                <node concept="2YIFZM" id="7wjZwvOaVAJ" role="3clFbG">
-                  <ref role="37wK5l" to="y9hc:7wjZwvOaQXf" resolve="doExecuteTest" />
-                  <ref role="1Pybhc" to="y9hc:7wjZwvOaQW4" resolve="TestRunner" />
-                  <node concept="37vLTw" id="7wjZwvOaVMA" role="37wK5m">
-                    <ref role="3cqZAo" node="7wjZwvO2LhI" resolve="ti" />
                   </node>
                 </node>
               </node>
@@ -743,95 +769,124 @@
           <node concept="3cqZAl" id="7wjZwvO2Hpp" role="3clF45" />
           <node concept="3Tm1VV" id="7wjZwvO2Hpq" role="1B3o_S" />
           <node concept="3clFbS" id="7wjZwvO2Hpr" role="3clF47">
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-              <node concept="3cpWsn" id="7wjZwvO2Hpt" role="3cpWs9">
-                <property role="TrG5h" value="operation" />
-                <node concept="3Tqbb2" id="7wjZwvO2Hpu" role="1tU5fm">
-                  <ref role="ehGHo" to="tp5g:1kgh5Yab2sH" resolve="INodesTestMethod" />
-                </node>
-                <node concept="1PxgMI" id="7wjZwvO2Hpv" role="33vP2m">
-                  <node concept="1rXfSq" id="7wjZwvO2Hpw" role="1m5AlR">
-                    <ref role="37wK5l" to="tp6m:hLFg$wA" resolve="getRealNodeById" />
-                    <node concept="Xl_RD" id="7wjZwvO2Hpx" role="37wK5m">
-                      <property role="Xl_RC" value="nodeId" />
-                      <node concept="17Uvod" id="7wjZwvO2Hpy" role="lGtFl">
-                        <property role="2qtEX9" value="value" />
-                        <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
-                        <node concept="3zFVjK" id="7wjZwvO2Hpz" role="3zH0cK">
-                          <node concept="3clFbS" id="7wjZwvO2Hp$" role="2VODD2">
-                            <node concept="3clFbF" id="7wjZwvO2Hp_" role="3cqZAp">
-                              <node concept="2OqwBi" id="7wjZwvO2HpA" role="3clFbG">
-                                <node concept="2OqwBi" id="7wjZwvO2HpB" role="2Oq$k0">
-                                  <node concept="liA8E" id="7wjZwvO2HpC" role="2OqNvi">
-                                    <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
-                                  </node>
-                                  <node concept="2JrnkZ" id="7wjZwvO2HpD" role="2Oq$k0">
-                                    <node concept="30H73N" id="7wjZwvO2HpE" role="2JrQYb" />
+            <node concept="3clFbF" id="7MpFXKniYsz" role="3cqZAp">
+              <node concept="1rXfSq" id="7MpFXKniYsx" role="3clFbG">
+                <ref role="37wK5l" to="tp6m:ZcWKOigGgW" resolve="runWithinCommand" />
+                <node concept="2ShNRf" id="7MpFXKnGx$$" role="37wK5m">
+                  <node concept="YeOm9" id="7MpFXKnGxNg" role="2ShVmc">
+                    <node concept="1Y3b0j" id="7MpFXKnGxNj" role="YeSDq">
+                      <property role="2bfB8j" value="true" />
+                      <property role="373rjd" value="true" />
+                      <ref role="1Y3XeK" to="tp6m:ZcWKOiCwiP" resolve="BaseTestBody.ExceptionRunnable" />
+                      <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+                      <node concept="3Tm1VV" id="7MpFXKnGxNk" role="1B3o_S" />
+                      <node concept="3clFb_" id="7MpFXKnGxNz" role="jymVt">
+                        <property role="TrG5h" value="run" />
+                        <node concept="3Tm1VV" id="7MpFXKnGxN_" role="1B3o_S" />
+                        <node concept="3cqZAl" id="7MpFXKnGxNA" role="3clF45" />
+                        <node concept="3uibUv" id="7MpFXKnGxNB" role="Sfmx6">
+                          <ref role="3uigEE" to="wyt6:~Exception" resolve="Exception" />
+                        </node>
+                        <node concept="3clFbS" id="7MpFXKnGxNC" role="3clF47">
+                          <node concept="3cpWs8" id="7wjZwvO2Hps" role="3cqZAp">
+                            <node concept="3cpWsn" id="7wjZwvO2Hpt" role="3cpWs9">
+                              <property role="TrG5h" value="operation" />
+                              <node concept="3Tqbb2" id="7wjZwvO2Hpu" role="1tU5fm">
+                                <ref role="ehGHo" to="tp5g:1kgh5Yab2sH" resolve="INodesTestMethod" />
+                              </node>
+                              <node concept="1PxgMI" id="7wjZwvO2Hpv" role="33vP2m">
+                                <node concept="1rXfSq" id="7wjZwvO2Hpw" role="1m5AlR">
+                                  <ref role="37wK5l" to="tp6m:hLFg$wA" resolve="getRealNodeById" />
+                                  <node concept="Xl_RD" id="7wjZwvO2Hpx" role="37wK5m">
+                                    <property role="Xl_RC" value="nodeId" />
+                                    <node concept="17Uvod" id="7wjZwvO2Hpy" role="lGtFl">
+                                      <property role="2qtEX9" value="value" />
+                                      <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
+                                      <node concept="3zFVjK" id="7wjZwvO2Hpz" role="3zH0cK">
+                                        <node concept="3clFbS" id="7wjZwvO2Hp$" role="2VODD2">
+                                          <node concept="3clFbF" id="7wjZwvO2Hp_" role="3cqZAp">
+                                            <node concept="2OqwBi" id="7wjZwvO2HpA" role="3clFbG">
+                                              <node concept="2OqwBi" id="7wjZwvO2HpB" role="2Oq$k0">
+                                                <node concept="liA8E" id="7wjZwvO2HpC" role="2OqNvi">
+                                                  <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
+                                                </node>
+                                                <node concept="2JrnkZ" id="7wjZwvO2HpD" role="2Oq$k0">
+                                                  <node concept="30H73N" id="7wjZwvO2HpE" role="2JrQYb" />
+                                                </node>
+                                              </node>
+                                              <node concept="liA8E" id="7wjZwvO2HpF" role="2OqNvi">
+                                                <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                                              </node>
+                                            </node>
+                                          </node>
+                                        </node>
+                                      </node>
+                                    </node>
                                   </node>
                                 </node>
-                                <node concept="liA8E" id="7wjZwvO2HpF" role="2OqNvi">
-                                  <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                                <node concept="chp4Y" id="7wjZwvO2HpG" role="3oSUPX">
+                                  <ref role="cht4Q" to="tp5g:1kgh5Yab2sH" resolve="INodesTestMethod" />
                                 </node>
                               </node>
                             </node>
                           </node>
-                        </node>
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-                    </node>
-                  </node>
-                  <node concept="chp4Y" id="7wjZwvO2HpG" role="3oSUPX">
-                    <ref role="cht4Q" to="tp5g:1kgh5Yab2sH" resolve="INodesTestMethod" />
-                  </node>
-                </node>
-              </node>
-            </node>
-            <node concept="3clFbF" id="7wjZwvO2HpH" role="3cqZAp">
-              <node concept="2OqwBi" id="7wjZwvO2HpI" role="3clFbG">
-                <node concept="37vLTw" id="7wjZwvO2HpJ" role="2Oq$k0">
-                  <ref role="3cqZAo" node="7wjZwvO2Hpt" resolve="operation" />
-                </node>
-                <node concept="2qgKlT" id="7wjZwvO2HpK" role="2OqNvi">
-                  <ref role="37wK5l" to="tp5o:1kgh5YabdhC" resolve="perform" />
-                  <node concept="1rXfSq" id="7wjZwvO2HpL" role="37wK5m">
-                    <ref role="37wK5l" to="tp6m:hLFg$wA" resolve="getRealNodeById" />
-                    <node concept="Xl_RD" id="7wjZwvO2HpM" role="37wK5m">
-                      <property role="Xl_RC" value="nodeId" />
-                      <node concept="17Uvod" id="7wjZwvO2HpN" role="lGtFl">
-                        <property role="2qtEX9" value="value" />
-                        <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
-                        <node concept="3zFVjK" id="7wjZwvO2HpO" role="3zH0cK">
-                          <node concept="3clFbS" id="7wjZwvO2HpP" role="2VODD2">
-                            <node concept="3clFbF" id="7wjZwvO2HpQ" role="3cqZAp">
-                              <node concept="2OqwBi" id="7wjZwvO2HpR" role="3clFbG">
-                                <node concept="2OqwBi" id="7wjZwvO2HpS" role="2Oq$k0">
-                                  <node concept="liA8E" id="7wjZwvO2HpT" role="2OqNvi">
-                                    <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
-                                  </node>
-                                  <node concept="2JrnkZ" id="7wjZwvO2HpU" role="2Oq$k0">
-                                    <node concept="2OqwBi" id="7wjZwvO2HpV" role="2JrQYb">
-                                      <node concept="1PxgMI" id="7wjZwvO31G3" role="2Oq$k0">
-                                        <node concept="chp4Y" id="7wjZwvO31R1" role="3oSUPX">
-                                          <ref role="cht4Q" to="tp5g:1kgh5Yab2sH" resolve="INodesTestMethod" />
+                          <node concept="3clFbF" id="7wjZwvO2HpH" role="3cqZAp">
+                            <node concept="2OqwBi" id="7wjZwvO2HpI" role="3clFbG">
+                              <node concept="37vLTw" id="7wjZwvO2HpJ" role="2Oq$k0">
+                                <ref role="3cqZAo" node="7wjZwvO2Hpt" resolve="operation" />
+                              </node>
+                              <node concept="2qgKlT" id="7wjZwvO2HpK" role="2OqNvi">
+                                <ref role="37wK5l" to="tp5o:1kgh5YabdhC" resolve="perform" />
+                                <node concept="1rXfSq" id="7wjZwvO2HpL" role="37wK5m">
+                                  <ref role="37wK5l" to="tp6m:hLFg$wA" resolve="getRealNodeById" />
+                                  <node concept="Xl_RD" id="7wjZwvO2HpM" role="37wK5m">
+                                    <property role="Xl_RC" value="nodeId" />
+                                    <node concept="17Uvod" id="7wjZwvO2HpN" role="lGtFl">
+                                      <property role="2qtEX9" value="value" />
+                                      <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
+                                      <node concept="3zFVjK" id="7wjZwvO2HpO" role="3zH0cK">
+                                        <node concept="3clFbS" id="7wjZwvO2HpP" role="2VODD2">
+                                          <node concept="3clFbF" id="7wjZwvO2HpQ" role="3cqZAp">
+                                            <node concept="2OqwBi" id="7wjZwvO2HpR" role="3clFbG">
+                                              <node concept="2OqwBi" id="7wjZwvO2HpS" role="2Oq$k0">
+                                                <node concept="liA8E" id="7wjZwvO2HpT" role="2OqNvi">
+                                                  <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
+                                                </node>
+                                                <node concept="2JrnkZ" id="7wjZwvO2HpU" role="2Oq$k0">
+                                                  <node concept="2OqwBi" id="7wjZwvO2HpV" role="2JrQYb">
+                                                    <node concept="1PxgMI" id="7wjZwvO31G3" role="2Oq$k0">
+                                                      <node concept="chp4Y" id="7wjZwvO31R1" role="3oSUPX">
+                                                        <ref role="cht4Q" to="tp5g:1kgh5Yab2sH" resolve="INodesTestMethod" />
+                                                      </node>
+                                                      <node concept="30H73N" id="7wjZwvO2HpW" role="1m5AlR" />
+                                                    </node>
+                                                    <node concept="2qgKlT" id="7wjZwvO2HpX" role="2OqNvi">
+                                                      <ref role="37wK5l" to="tp5o:38gbJV0XvZR" resolve="getAnnotatedNode" />
+                                                    </node>
+                                                  </node>
+                                                </node>
+                                              </node>
+                                              <node concept="liA8E" id="7wjZwvO2HpY" role="2OqNvi">
+                                                <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                                              </node>
+                                            </node>
+                                          </node>
                                         </node>
-                                        <node concept="30H73N" id="7wjZwvO2HpW" role="1m5AlR" />
-                                      </node>
-                                      <node concept="2qgKlT" id="7wjZwvO2HpX" role="2OqNvi">
-                                        <ref role="37wK5l" to="tp5o:38gbJV0XvZR" resolve="getAnnotatedNode" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="liA8E" id="7wjZwvO2HpY" role="2OqNvi">
-                                  <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
-                                </node>
+                                <node concept="10Nm6u" id="7fT4hG54Ez7" role="37wK5m" />
                               </node>
                             </node>
                           </node>
                         </node>
+                        <node concept="2AHcQZ" id="7MpFXKnGxNE" role="2AJF6D">
+                          <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+                        </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="10Nm6u" id="7fT4hG54Ez7" role="37wK5m" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/org.iets3.core.expr.tests.generator.template.util.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/org.iets3.core.expr.tests.generator.template.util.mps
index ef997bd4b7..08a6a7e64f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/org.iets3.core.expr.tests.generator.template.util.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/generator/template/org.iets3.core.expr.tests.generator.template.util.mps
@@ -7,8 +7,8 @@
   <imports>
     <import index="tpe3" ref="r:00000000-0000-4000-0000-011c895902d7(jetbrains.mps.baseLanguage.unitTest.structure)" />
     <import index="tpe5" ref="r:00000000-0000-4000-0000-011c895902d1(jetbrains.mps.baseLanguage.unitTest.behavior)" />
-    <import index="q7tw" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:org.apache.log4j(MPS.Core/)" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
+    <import index="wwqx" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.logging(MPS.Core/)" />
     <import index="tp5o" ref="r:00000000-0000-4000-0000-011c89590380(jetbrains.mps.lang.test.behavior)" implicit="true" />
     <import index="tp5g" ref="r:00000000-0000-4000-0000-011c89590388(jetbrains.mps.lang.test.structure)" implicit="true" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" implicit="true" />
@@ -70,7 +70,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -82,7 +82,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -117,7 +117,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -169,17 +169,17 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbF" id="7aH5t2gCbtb" role="3cqZAp">
-          <node concept="2OqwBi" id="7aH5t2gCbZ8" role="3clFbG">
-            <node concept="2YIFZM" id="7aH5t2gCbRh" role="2Oq$k0">
-              <ref role="37wK5l" to="q7tw:~Logger.getLogger(java.lang.Class)" resolve="getLogger" />
-              <ref role="1Pybhc" to="q7tw:~Logger" resolve="Logger" />
-              <node concept="3VsKOn" id="7aH5t2gCbWc" role="37wK5m">
+        <node concept="3clFbF" id="4z0AnX5BR$y" role="3cqZAp">
+          <node concept="2OqwBi" id="4z0AnX5BRTQ" role="3clFbG">
+            <node concept="2YIFZM" id="4z0AnX5BRBS" role="2Oq$k0">
+              <ref role="37wK5l" to="wwqx:~Logger.getLogger(java.lang.Class)" resolve="getLogger" />
+              <ref role="1Pybhc" to="wwqx:~Logger" resolve="Logger" />
+              <node concept="3VsKOn" id="4z0AnX5BRJf" role="37wK5m">
                 <ref role="3VsUkX" node="L0xQjiTXbn" resolve="TestsUtil" />
               </node>
             </node>
-            <node concept="liA8E" id="7aH5t2gCc9U" role="2OqNvi">
-              <ref role="37wK5l" to="q7tw:~Category.error(java.lang.Object)" resolve="error" />
+            <node concept="liA8E" id="4z0AnX5BS4F" role="2OqNvi">
+              <ref role="37wK5l" to="wwqx:~Logger.error(java.lang.String)" resolve="error" />
               <node concept="2YIFZM" id="7aH5t2gCcho" role="37wK5m">
                 <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
                 <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/behavior.mps
index e5c0a781c3..c9f9b4e828 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/behavior.mps
@@ -8,7 +8,7 @@
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="c3bfea76-7bba-4f0e-b5a2-ff4e7a8d7cf1" name="com.mbeddr.mpsutil.spreferences" version="-1" />
     <use id="446c26eb-2b7b-4bf0-9b35-f83fa582753e" name="jetbrains.mps.lang.modelapi" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
     <use id="774bf8a0-62e5-41e1-af63-f4812e60e48b" name="jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
@@ -123,7 +123,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1095950406618" name="jetbrains.mps.baseLanguage.structure.DivExpression" flags="nn" index="FJ1c_" />
@@ -192,7 +192,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1092119917967" name="jetbrains.mps.baseLanguage.structure.MulExpression" flags="nn" index="17qRlL" />
@@ -262,7 +262,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -274,6 +274,7 @@
       <concept id="7812454656619025416" name="jetbrains.mps.baseLanguage.structure.MethodDeclaration" flags="ng" index="1rXfSm">
         <property id="8355037393041754995" name="isNative" index="2aFKle" />
       </concept>
+      <concept id="7812454656619025412" name="jetbrains.mps.baseLanguage.structure.LocalMethodCall" flags="nn" index="1rXfSq" />
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
@@ -290,7 +291,7 @@
         <child id="8276990574909234106" name="finallyBody" index="1wplMD" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -300,6 +301,9 @@
         <child id="1144231399730" name="condition" index="1Dwp0S" />
         <child id="1144231408325" name="iteration" index="1Dwrff" />
       </concept>
+      <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615">
+        <child id="1107797138135" name="extendedInterface" index="3HQHJm" />
+      </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
         <child id="8276990574886367510" name="catchClause" index="1zxBo5" />
         <child id="8276990574886367509" name="finallyClause" index="1zxBo6" />
@@ -323,11 +327,37 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
       </concept>
     </language>
+    <language id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc">
+      <concept id="2546654756694997551" name="jetbrains.mps.baseLanguage.javadoc.structure.LinkInlineDocTag" flags="ng" index="92FcH">
+        <child id="2546654756694997556" name="reference" index="92FcQ" />
+        <child id="3106559687488913694" name="line" index="2XjZqd" />
+      </concept>
+      <concept id="6832197706140896242" name="jetbrains.mps.baseLanguage.javadoc.structure.FieldDocComment" flags="ng" index="z59LJ" />
+      <concept id="5349172909345501395" name="jetbrains.mps.baseLanguage.javadoc.structure.BaseDocComment" flags="ng" index="P$AiS">
+        <child id="5383422241790532083" name="tags" index="3nqlJM" />
+      </concept>
+      <concept id="8465538089690331500" name="jetbrains.mps.baseLanguage.javadoc.structure.CommentLine" flags="ng" index="TZ5HA">
+        <child id="8970989240999019149" name="part" index="1dT_Ay" />
+      </concept>
+      <concept id="8465538089690331492" name="jetbrains.mps.baseLanguage.javadoc.structure.DeprecatedBlockDocTag" flags="ng" index="TZ5HI">
+        <child id="2667874559098216723" name="text" index="3HnX3l" />
+      </concept>
+      <concept id="2217234381367530195" name="jetbrains.mps.baseLanguage.javadoc.structure.MethodDocReference" flags="ng" index="VXe0Z">
+        <reference id="2217234381367530196" name="methodDeclaration" index="VXe0S" />
+      </concept>
+      <concept id="8970989240999019145" name="jetbrains.mps.baseLanguage.javadoc.structure.InlineTagCommentLinePart" flags="ng" index="1dT_AA">
+        <child id="6962838954693749192" name="tag" index="qph3F" />
+      </concept>
+      <concept id="8970989240999019143" name="jetbrains.mps.baseLanguage.javadoc.structure.TextCommentLinePart" flags="ng" index="1dT_AC">
+        <property id="8970989240999019144" name="text" index="1dT_AB" />
+      </concept>
+    </language>
     <language id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation">
       <concept id="5455284157994012186" name="jetbrains.mps.lang.quotation.structure.NodeBuilderInitLink" flags="ng" index="2pIpSj">
         <reference id="5455284157994012188" name="link" index="2pIpSl" />
@@ -463,9 +493,13 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
+      <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
+        <property id="8575328350543493365" name="message" index="huDt6" />
+        <property id="2423417345669755629" name="filter" index="1eyWvh" />
+      </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
         <property id="709746936026609031" name="linkId" index="3V$3ak" />
         <property id="709746936026609029" name="role_DebugInfo" index="3V$3am" />
@@ -507,7 +541,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
@@ -530,6 +563,7 @@
     <ref role="13h7C2" to="av4b:ub9nkyHAba" resolve="AssertTestItem" />
     <node concept="13i0hz" id="ub9nkyNCn1" role="13h7CS">
       <property role="TrG5h" value="isStructurallyValid" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="ub9nkyNMQs" role="1B3o_S" />
       <node concept="10P_77" id="ub9nkyNC_$" role="3clF45" />
       <node concept="3clFbS" id="ub9nkyNCn4" role="3clF47">
@@ -561,7 +595,7 @@
                       <node concept="2OqwBi" id="5Pgo_AS5DlS" role="3clFbG">
                         <node concept="2OqwBi" id="5Pgo_AS5CzJ" role="2Oq$k0">
                           <node concept="37vLTw" id="5Pgo_AS5CzK" role="2Oq$k0">
-                            <ref role="3cqZAo" node="ub9nkyNC_W" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817eY" resolve="it" />
                           </node>
                           <node concept="2yIwOk" id="5Pgo_AS5CzL" role="2OqNvi" />
                         </node>
@@ -573,9 +607,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="ub9nkyNC_W" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817eY" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="ub9nkyNC_X" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817eZ" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -619,7 +653,7 @@
                       <node concept="2OqwBi" id="5Pgo_AS5FdJ" role="3clFbG">
                         <node concept="2OqwBi" id="5Pgo_AS5CMH" role="2Oq$k0">
                           <node concept="37vLTw" id="5Pgo_AS5CMI" role="2Oq$k0">
-                            <ref role="3cqZAo" node="ub9nkyNCIc" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817f0" resolve="it" />
                           </node>
                           <node concept="2yIwOk" id="5Pgo_AS5CMJ" role="2OqNvi" />
                         </node>
@@ -631,9 +665,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="ub9nkyNCIc" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817f0" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="ub9nkyNCId" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817f1" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -708,7 +742,7 @@
                   <node concept="3cpWsn" id="7obiejCHwiA" role="3cpWs9">
                     <property role="TrG5h" value="rr" />
                     <node concept="3uibUv" id="4Pi6J8Ccv72" role="1tU5fm">
-                      <ref role="3uigEE" to="pbu6:4Pi6J8Cccqb" resolve="ValueAndTraceAndEnv" />
+                      <ref role="3uigEE" to="pbu6:7LZDtvhtD$G" resolve="IValueAndTraceAndEnv" />
                     </node>
                     <node concept="BsUDl" id="7obiejCHwiB" role="33vP2m">
                       <ref role="37wK5l" node="7obiejCzVLz" resolve="evalWithTraceAndEnv" />
@@ -719,21 +753,19 @@
                 <node concept="3clFbJ" id="1yW0h04DTLU" role="3cqZAp">
                   <node concept="3clFbS" id="1yW0h04DTLW" role="3clFbx">
                     <node concept="3clFbF" id="2kg0xI3xX8G" role="3cqZAp">
-                      <node concept="37vLTI" id="2kg0xI3xY5M" role="3clFbG">
-                        <node concept="2OqwBi" id="2kg0xI3xYfT" role="37vLTx">
-                          <node concept="37vLTw" id="2kg0xI3xY8e" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7obiejCHwiA" resolve="rr" />
-                          </node>
-                          <node concept="2OwXpG" id="2kg0xI3xY_j" role="2OqNvi">
-                            <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
-                          </node>
+                      <node concept="2OqwBi" id="2kg0xI3xXqo" role="3clFbG">
+                        <node concept="37vLTw" id="2kg0xI3xX8E" role="2Oq$k0">
+                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="2kg0xI3xXqo" role="37vLTJ">
-                          <node concept="37vLTw" id="2kg0xI3xX8E" role="2Oq$k0">
-                            <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="2kg0xI3xXCt" role="2OqNvi">
-                            <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                        <node concept="liA8E" id="7LZDtvgHLzY" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                          <node concept="2OqwBi" id="2kg0xI3xYfT" role="37wK5m">
+                            <node concept="37vLTw" id="2kg0xI3xY8e" role="2Oq$k0">
+                              <ref role="3cqZAo" node="7obiejCHwiA" resolve="rr" />
+                            </node>
+                            <node concept="liA8E" id="7LZDtvhoJTW" role="2OqNvi">
+                              <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                            </node>
                           </node>
                         </node>
                       </node>
@@ -755,8 +787,8 @@
                                   <node concept="37vLTw" id="7lHetQyBPyi" role="2Oq$k0">
                                     <ref role="3cqZAo" node="7obiejCHwiA" resolve="rr" />
                                   </node>
-                                  <node concept="2OwXpG" id="7lHetQyBQ16" role="2OqNvi">
-                                    <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                                  <node concept="liA8E" id="7LZDtvhovxD" role="2OqNvi">
+                                    <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                                   </node>
                                 </node>
                               </node>
@@ -766,16 +798,14 @@
                         <node concept="3clFbJ" id="78hTg1$GmF7" role="3cqZAp">
                           <node concept="3clFbS" id="78hTg1$GmF9" role="3clFbx">
                             <node concept="3clFbF" id="252QIDysbuz" role="3cqZAp">
-                              <node concept="37vLTI" id="252QIDysb$g" role="3clFbG">
-                                <node concept="3clFbT" id="78hTg1$GmKs" role="37vLTx">
-                                  <property role="3clFbU" value="true" />
+                              <node concept="2OqwBi" id="252QIDysbva" role="3clFbG">
+                                <node concept="37vLTw" id="252QIDysbux" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                                 </node>
-                                <node concept="2OqwBi" id="252QIDysbva" role="37vLTJ">
-                                  <node concept="37vLTw" id="252QIDysbux" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                                  </node>
-                                  <node concept="2OwXpG" id="252QIDysbwO" role="2OqNvi">
-                                    <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                                <node concept="liA8E" id="7LZDtvgHR3d" role="2OqNvi">
+                                  <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                                  <node concept="3clFbT" id="7LZDtvgHS4I" role="37wK5m">
+                                    <property role="3clFbU" value="true" />
                                   </node>
                                 </node>
                               </node>
@@ -787,17 +817,13 @@
                           <node concept="9aQIb" id="78hTg1$GmGN" role="9aQIa">
                             <node concept="3clFbS" id="78hTg1$GmGO" role="9aQI4">
                               <node concept="3clFbF" id="78hTg1$GnxV" role="3cqZAp">
-                                <node concept="37vLTI" id="78hTg1$GobD" role="3clFbG">
-                                  <node concept="3clFbT" id="78hTg1$GocR" role="37vLTx">
-                                    <property role="3clFbU" value="false" />
+                                <node concept="2OqwBi" id="78hTg1$GnHM" role="3clFbG">
+                                  <node concept="37vLTw" id="78hTg1$GnxT" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                                   </node>
-                                  <node concept="2OqwBi" id="78hTg1$GnHM" role="37vLTJ">
-                                    <node concept="37vLTw" id="78hTg1$GnxT" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                                    </node>
-                                    <node concept="2OwXpG" id="78hTg1$GnP_" role="2OqNvi">
-                                      <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                                    </node>
+                                  <node concept="liA8E" id="7LZDtvgHV6w" role="2OqNvi">
+                                    <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                                    <node concept="3clFbT" id="7LZDtvgHXZ0" role="37wK5m" />
                                   </node>
                                 </node>
                               </node>
@@ -813,7 +839,7 @@
                                         <ref role="3cqZAo" node="7obiejCHwiA" resolve="rr" />
                                       </node>
                                       <node concept="liA8E" id="4Pi6J8CcvAJ" role="2OqNvi">
-                                        <ref role="37wK5l" to="pbu6:4Pi6J8CclOV" resolve="env" />
+                                        <ref role="37wK5l" to="pbu6:7LZDtvhtDNX" resolve="env" />
                                       </node>
                                     </node>
                                     <node concept="liA8E" id="4Pi6J8CcxOi" role="2OqNvi">
@@ -840,7 +866,7 @@
                                         <ref role="3cqZAo" node="7obiejCHwiA" resolve="rr" />
                                       </node>
                                       <node concept="liA8E" id="4Pi6J8CcADx" role="2OqNvi">
-                                        <ref role="37wK5l" to="pbu6:4Pi6J8CclOV" resolve="env" />
+                                        <ref role="37wK5l" to="pbu6:7LZDtvhtDNX" resolve="env" />
                                       </node>
                                     </node>
                                     <node concept="liA8E" id="4Pi6J8CcADy" role="2OqNvi">
@@ -856,55 +882,53 @@
                                 </node>
                               </node>
                               <node concept="3clFbF" id="ub9nkyQjyF" role="3cqZAp">
-                                <node concept="37vLTI" id="ub9nkyQjJf" role="3clFbG">
-                                  <node concept="2OqwBi" id="ub9nkyQjDo" role="37vLTJ">
-                                    <node concept="37vLTw" id="ub9nkyQjyD" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                                    </node>
-                                    <node concept="2OwXpG" id="ub9nkyQjFe" role="2OqNvi">
-                                      <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                                    </node>
+                                <node concept="2OqwBi" id="ub9nkyQjDo" role="3clFbG">
+                                  <node concept="37vLTw" id="ub9nkyQjyD" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                                   </node>
-                                  <node concept="2ShNRf" id="6C0OSEaHgfw" role="37vLTx">
-                                    <node concept="1pGfFk" id="6C0OSEaHgXp" role="2ShVmc">
-                                      <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                                      <node concept="2YIFZM" id="5PdB3P1wsdO" role="37wK5m">
-                                        <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
-                                        <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
-                                        <node concept="Xl_RD" id="5PdB3P1wE09" role="37wK5m">
-                                          <property role="Xl_RC" value="Test Failed. Expected: %s [%s], but was: %s [%s]" />
-                                        </node>
-                                        <node concept="37vLTw" id="4kdJi32OWvZ" role="37wK5m">
-                                          <ref role="3cqZAo" node="4Pi6J8CcADs" resolve="exp" />
-                                        </node>
-                                        <node concept="2OqwBi" id="2OAHhAJMPEP" role="37wK5m">
-                                          <node concept="2OqwBi" id="2OAHhAJMOoO" role="2Oq$k0">
-                                            <node concept="37vLTw" id="2OAHhAJMOdI" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4Pi6J8CcADs" resolve="exp" />
+                                  <node concept="liA8E" id="7LZDtvgI0RH" role="2OqNvi">
+                                    <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                                    <node concept="2ShNRf" id="6C0OSEaHgfw" role="37wK5m">
+                                      <node concept="1pGfFk" id="6C0OSEaHgXp" role="2ShVmc">
+                                        <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                                        <node concept="2YIFZM" id="5PdB3P1wsdO" role="37wK5m">
+                                          <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
+                                          <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
+                                          <node concept="Xl_RD" id="5PdB3P1wE09" role="37wK5m">
+                                            <property role="Xl_RC" value="Test Failed. Expected: %s [%s], but was: %s [%s]" />
+                                          </node>
+                                          <node concept="37vLTw" id="4kdJi32OWvZ" role="37wK5m">
+                                            <ref role="3cqZAo" node="4Pi6J8CcADs" resolve="exp" />
+                                          </node>
+                                          <node concept="2OqwBi" id="2OAHhAJMPEP" role="37wK5m">
+                                            <node concept="2OqwBi" id="2OAHhAJMOoO" role="2Oq$k0">
+                                              <node concept="37vLTw" id="2OAHhAJMOdI" role="2Oq$k0">
+                                                <ref role="3cqZAo" node="4Pi6J8CcADs" resolve="exp" />
+                                              </node>
+                                              <node concept="liA8E" id="2OAHhAJMOKg" role="2OqNvi">
+                                                <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                                              </node>
                                             </node>
-                                            <node concept="liA8E" id="2OAHhAJMOKg" role="2OqNvi">
-                                              <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                                            <node concept="liA8E" id="2OAHhAJMQOo" role="2OqNvi">
+                                              <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
                                             </node>
                                           </node>
-                                          <node concept="liA8E" id="2OAHhAJMQOo" role="2OqNvi">
-                                            <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
+                                          <node concept="37vLTw" id="4kdJi32OWw0" role="37wK5m">
+                                            <ref role="3cqZAo" node="78hTg1$Gqke" resolve="act" />
                                           </node>
-                                        </node>
-                                        <node concept="37vLTw" id="4kdJi32OWw0" role="37wK5m">
-                                          <ref role="3cqZAo" node="78hTg1$Gqke" resolve="act" />
-                                        </node>
-                                        <node concept="2OqwBi" id="2OAHhAJMVwj" role="37wK5m">
-                                          <node concept="2OqwBi" id="2OAHhAJMVwk" role="2Oq$k0">
-                                            <node concept="37vLTw" id="2OAHhAJMWg4" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="78hTg1$Gqke" resolve="act" />
+                                          <node concept="2OqwBi" id="2OAHhAJMVwj" role="37wK5m">
+                                            <node concept="2OqwBi" id="2OAHhAJMVwk" role="2Oq$k0">
+                                              <node concept="37vLTw" id="2OAHhAJMWg4" role="2Oq$k0">
+                                                <ref role="3cqZAo" node="78hTg1$Gqke" resolve="act" />
+                                              </node>
+                                              <node concept="liA8E" id="2OAHhAJMVwm" role="2OqNvi">
+                                                <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                                              </node>
                                             </node>
-                                            <node concept="liA8E" id="2OAHhAJMVwm" role="2OqNvi">
-                                              <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                                            <node concept="liA8E" id="2OAHhAJMVwn" role="2OqNvi">
+                                              <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
                                             </node>
                                           </node>
-                                          <node concept="liA8E" id="2OAHhAJMVwn" role="2OqNvi">
-                                            <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
-                                          </node>
                                         </node>
                                       </node>
                                     </node>
@@ -912,16 +936,14 @@
                                 </node>
                               </node>
                               <node concept="3clFbF" id="78hTg1$Gon$" role="3cqZAp">
-                                <node concept="37vLTI" id="78hTg1$GpbZ" role="3clFbG">
-                                  <node concept="37vLTw" id="78hTg1$Gqkh" role="37vLTx">
-                                    <ref role="3cqZAo" node="78hTg1$Gqke" resolve="act" />
+                                <node concept="2OqwBi" id="78hTg1$Gozx" role="3clFbG">
+                                  <node concept="37vLTw" id="78hTg1$Gony" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                                   </node>
-                                  <node concept="2OqwBi" id="78hTg1$Gozx" role="37vLTJ">
-                                    <node concept="37vLTw" id="78hTg1$Gony" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                                    </node>
-                                    <node concept="2OwXpG" id="78hTg1$GoFm" role="2OqNvi">
-                                      <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                                  <node concept="liA8E" id="7LZDtvgI6LZ" role="2OqNvi">
+                                    <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                                    <node concept="37vLTw" id="7LZDtvgI7Br" role="37wK5m">
+                                      <ref role="3cqZAo" node="78hTg1$Gqke" resolve="act" />
                                     </node>
                                   </node>
                                 </node>
@@ -938,8 +960,8 @@
                           <node concept="37vLTw" id="7lHetQyBPa9" role="2Oq$k0">
                             <ref role="3cqZAo" node="7obiejCHwiA" resolve="rr" />
                           </node>
-                          <node concept="2OwXpG" id="7lHetQyBPrp" role="2OqNvi">
-                            <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                          <node concept="liA8E" id="7LZDtvhouFv" role="2OqNvi">
+                            <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                           </node>
                         </node>
                       </node>
@@ -954,31 +976,25 @@
                   <node concept="9aQIb" id="1yW0h04ECnp" role="9aQIa">
                     <node concept="3clFbS" id="1yW0h04ECnq" role="9aQI4">
                       <node concept="3clFbF" id="1yW0h04ECIs" role="3cqZAp">
-                        <node concept="37vLTI" id="1yW0h04EE__" role="3clFbG">
-                          <node concept="3clFbT" id="1yW0h04EFc2" role="37vLTx">
-                            <property role="3clFbU" value="false" />
+                        <node concept="2OqwBi" id="1yW0h04ECSp" role="3clFbG">
+                          <node concept="37vLTw" id="1yW0h04ECIr" role="2Oq$k0">
+                            <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                           </node>
-                          <node concept="2OqwBi" id="1yW0h04ECSp" role="37vLTJ">
-                            <node concept="37vLTw" id="1yW0h04ECIr" role="2Oq$k0">
-                              <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                            </node>
-                            <node concept="2OwXpG" id="1yW0h04EDgS" role="2OqNvi">
-                              <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                            </node>
+                          <node concept="liA8E" id="7LZDtvgIcvb" role="2OqNvi">
+                            <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                            <node concept="3clFbT" id="7LZDtvgIdwj" role="37wK5m" />
                           </node>
                         </node>
                       </node>
                       <node concept="3clFbF" id="1yW0h04EGGt" role="3cqZAp">
-                        <node concept="37vLTI" id="1yW0h04EGGu" role="3clFbG">
-                          <node concept="Xl_RD" id="1yW0h04EGGv" role="37vLTx">
-                            <property role="Xl_RC" value="no result" />
+                        <node concept="2OqwBi" id="1yW0h04EGGw" role="3clFbG">
+                          <node concept="37vLTw" id="1yW0h04EGGx" role="2Oq$k0">
+                            <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                           </node>
-                          <node concept="2OqwBi" id="1yW0h04EGGw" role="37vLTJ">
-                            <node concept="37vLTw" id="1yW0h04EGGx" role="2Oq$k0">
-                              <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                            </node>
-                            <node concept="2OwXpG" id="1yW0h04EGGy" role="2OqNvi">
-                              <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                          <node concept="liA8E" id="7LZDtvgIh3S" role="2OqNvi">
+                            <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                            <node concept="Xl_RD" id="1yW0h04EGGv" role="37wK5m">
+                              <property role="Xl_RC" value="no result" />
                             </node>
                           </node>
                         </node>
@@ -999,85 +1015,77 @@
                 </node>
                 <node concept="3clFbS" id="5E2FDFNID$Z" role="1zc67A">
                   <node concept="3clFbF" id="5E2FDFNIEnn" role="3cqZAp">
-                    <node concept="37vLTI" id="5E2FDFNIEno" role="3clFbG">
-                      <node concept="3clFbT" id="5E2FDFNIEnp" role="37vLTx" />
-                      <node concept="2OqwBi" id="5E2FDFNIEnq" role="37vLTJ">
-                        <node concept="37vLTw" id="5E2FDFNIEnr" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5E2FDFNIEns" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="5E2FDFNIEnq" role="3clFbG">
+                      <node concept="37vLTw" id="5E2FDFNIEnr" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgIlju" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgIoco" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5E2FDFNIEnt" role="3cqZAp">
-                    <node concept="37vLTI" id="5E2FDFNIEnu" role="3clFbG">
-                      <node concept="Xl_RD" id="5E2FDFNIEnv" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;invalid value detected&gt;" />
+                    <node concept="2OqwBi" id="5E2FDFNIEnw" role="3clFbG">
+                      <node concept="37vLTw" id="5E2FDFNIEnx" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5E2FDFNIEnw" role="37vLTJ">
-                        <node concept="37vLTw" id="5E2FDFNIEnx" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5E2FDFNIEny" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgIrdJ" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="5E2FDFNIEnv" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;invalid value detected&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5E2FDFNIEnz" role="3cqZAp">
-                    <node concept="37vLTI" id="5E2FDFNIEn$" role="3clFbG">
-                      <node concept="2OqwBi" id="5E2FDFNIEnG" role="37vLTJ">
-                        <node concept="37vLTw" id="5E2FDFNIEnH" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5E2FDFNIEnI" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
-                      </node>
-                      <node concept="BsUDl" id="3YhAT14QmeJ" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="3cpWs3" id="51GICimQrz5" role="37wK5m">
-                          <node concept="2OqwBi" id="51GICimQwSA" role="3uHU7w">
-                            <node concept="2OqwBi" id="51GICimQtvk" role="2Oq$k0">
-                              <node concept="37vLTw" id="51GICimQt1u" role="2Oq$k0">
-                                <ref role="3cqZAo" node="5E2FDFNID$X" resolve="ex" />
+                    <node concept="2OqwBi" id="5E2FDFNIEnG" role="3clFbG">
+                      <node concept="37vLTw" id="5E2FDFNIEnH" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgIxrA" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14QmeJ" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="3cpWs3" id="51GICimQrz5" role="37wK5m">
+                            <node concept="2OqwBi" id="51GICimQwSA" role="3uHU7w">
+                              <node concept="2OqwBi" id="51GICimQtvk" role="2Oq$k0">
+                                <node concept="37vLTw" id="51GICimQt1u" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="5E2FDFNID$X" resolve="ex" />
+                                </node>
+                                <node concept="2OwXpG" id="51GICimQueF" role="2OqNvi">
+                                  <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                </node>
                               </node>
-                              <node concept="2OwXpG" id="51GICimQueF" role="2OqNvi">
-                                <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                              <node concept="liA8E" id="51GICimQxoV" role="2OqNvi">
+                                <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
                               </node>
                             </node>
-                            <node concept="liA8E" id="51GICimQxoV" role="2OqNvi">
-                              <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                            <node concept="Xl_RD" id="3YhAT14Qmuk" role="3uHU7B">
+                              <property role="Xl_RC" value="invalid value detected: " />
                             </node>
                           </node>
-                          <node concept="Xl_RD" id="3YhAT14Qmuk" role="3uHU7B">
-                            <property role="Xl_RC" value="invalid value detected: " />
+                          <node concept="37vLTw" id="3YhAT14Qnix" role="37wK5m">
+                            <ref role="3cqZAo" node="5E2FDFNID$X" resolve="ex" />
                           </node>
                         </node>
-                        <node concept="37vLTw" id="3YhAT14Qnix" role="37wK5m">
-                          <ref role="3cqZAo" node="5E2FDFNID$X" resolve="ex" />
-                        </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="2jL$v5BJ8aR" role="3cqZAp">
-                    <node concept="37vLTI" id="2jL$v5BJ9en" role="3clFbG">
-                      <node concept="2OqwBi" id="2jL$v5BJ9C1" role="37vLTx">
-                        <node concept="37vLTw" id="2jL$v5BJ9gV" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5E2FDFNID$X" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="2jL$v5BJaeM" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="2jL$v5BJ8tJ" role="3clFbG">
+                      <node concept="37vLTw" id="2jL$v5BJ8aP" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="2jL$v5BJ8tJ" role="37vLTJ">
-                        <node concept="37vLTw" id="2jL$v5BJ8aP" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="2jL$v5BJ8Nv" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgIA1I" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="2jL$v5BJ9C1" role="37wK5m">
+                          <node concept="37vLTw" id="2jL$v5BJ9gV" role="2Oq$k0">
+                            <ref role="3cqZAo" node="5E2FDFNID$X" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="2jL$v5BJaeM" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -1120,70 +1128,62 @@
                     </node>
                   </node>
                   <node concept="3clFbF" id="TuTPrvzYsf" role="3cqZAp">
-                    <node concept="37vLTI" id="TuTPrvzYsg" role="3clFbG">
-                      <node concept="3clFbT" id="TuTPrvzYsh" role="37vLTx" />
-                      <node concept="2OqwBi" id="TuTPrvzYsi" role="37vLTJ">
-                        <node concept="37vLTw" id="TuTPrvzYsj" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="TuTPrvzYsk" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="TuTPrvzYsi" role="3clFbG">
+                      <node concept="37vLTw" id="TuTPrvzYsj" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgIDJ9" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgIGxo" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="TuTPrvzZ6X" role="3cqZAp">
-                    <node concept="37vLTI" id="TuTPrvzZJq" role="3clFbG">
-                      <node concept="Xl_RD" id="TuTPrv$gCF" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;constraint failed&gt;" />
+                    <node concept="2OqwBi" id="TuTPrvzZi_" role="3clFbG">
+                      <node concept="37vLTw" id="TuTPrvzZ6V" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="TuTPrvzZi_" role="37vLTJ">
-                        <node concept="37vLTw" id="TuTPrvzZ6V" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="TuTPrvzZvE" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgIJBI" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="TuTPrv$gCF" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;constraint failed&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="TuTPrv$00J" role="3cqZAp">
-                    <node concept="37vLTI" id="TuTPrv$0ME" role="3clFbG">
-                      <node concept="2OqwBi" id="TuTPrv$074" role="37vLTJ">
-                        <node concept="37vLTw" id="TuTPrv$00H" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="TuTPrv$0k8" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="TuTPrv$074" role="3clFbG">
+                      <node concept="37vLTw" id="TuTPrv$00H" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14Qo1H" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3z0DCrA3LC3" role="37wK5m">
-                          <property role="Xl_RC" value="constraint failed" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QoxB" role="37wK5m">
-                          <ref role="3cqZAo" node="TuTPrvzYsc" resolve="ex" />
+                      <node concept="liA8E" id="7LZDtvgIPz6" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14Qo1H" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3z0DCrA3LC3" role="37wK5m">
+                            <property role="Xl_RC" value="constraint failed" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QoxB" role="37wK5m">
+                            <ref role="3cqZAo" node="TuTPrvzYsc" resolve="ex" />
+                          </node>
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="2jL$v5BJ5Y4" role="3cqZAp">
-                    <node concept="37vLTI" id="2jL$v5BJ6RJ" role="3clFbG">
-                      <node concept="2OqwBi" id="2jL$v5BJ7mq" role="37vLTx">
-                        <node concept="37vLTw" id="2jL$v5BJ6Uj" role="2Oq$k0">
-                          <ref role="3cqZAo" node="TuTPrvzYsc" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="2jL$v5BJ7SK" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="2jL$v5BJ677" role="3clFbG">
+                      <node concept="37vLTw" id="2jL$v5BJ5Y2" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="2jL$v5BJ677" role="37vLTJ">
-                        <node concept="37vLTw" id="2jL$v5BJ5Y2" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="2jL$v5BJ6sR" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgIVNd" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="2jL$v5BJ7mq" role="37wK5m">
+                          <node concept="37vLTw" id="2jL$v5BJ6Uj" role="2Oq$k0">
+                            <ref role="3cqZAo" node="TuTPrvzYsc" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="2jL$v5BJ7SK" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -1202,70 +1202,62 @@
                 </node>
                 <node concept="3clFbS" id="1RzljfOdmnR" role="1zc67A">
                   <node concept="3clFbF" id="1RzljfOdmnS" role="3cqZAp">
-                    <node concept="37vLTI" id="1RzljfOdmnT" role="3clFbG">
-                      <node concept="3clFbT" id="1RzljfOdmnU" role="37vLTx" />
-                      <node concept="2OqwBi" id="1RzljfOdmnV" role="37vLTJ">
-                        <node concept="37vLTw" id="1RzljfOdmnW" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="1RzljfOdmnX" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="1RzljfOdmnV" role="3clFbG">
+                      <node concept="37vLTw" id="1RzljfOdmnW" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgJ21x" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgJ34u" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="1RzljfOdmnY" role="3cqZAp">
-                    <node concept="37vLTI" id="1RzljfOdmnZ" role="3clFbG">
-                      <node concept="Xl_RD" id="1RzljfOdmo0" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;interpreter failed&gt;" />
+                    <node concept="2OqwBi" id="1RzljfOdmo1" role="3clFbG">
+                      <node concept="37vLTw" id="1RzljfOdmo2" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="1RzljfOdmo1" role="37vLTJ">
-                        <node concept="37vLTw" id="1RzljfOdmo2" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="1RzljfOdmo3" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgJ61L" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="1RzljfOdmo0" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;interpreter failed&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="1RzljfOdmo4" role="3cqZAp">
-                    <node concept="37vLTI" id="1RzljfOdmo5" role="3clFbG">
-                      <node concept="2OqwBi" id="1RzljfOdmod" role="37vLTJ">
-                        <node concept="37vLTw" id="1RzljfOdmoe" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="1RzljfOdmof" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="1RzljfOdmod" role="3clFbG">
+                      <node concept="37vLTw" id="1RzljfOdmoe" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14Qru$" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3YhAT14QrHZ" role="37wK5m">
-                          <property role="Xl_RC" value="interpreter failed" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QsFQ" role="37wK5m">
-                          <ref role="3cqZAo" node="1RzljfOdmnP" resolve="ex" />
+                      <node concept="liA8E" id="7LZDtvgJcrQ" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14Qru$" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3YhAT14QrHZ" role="37wK5m">
+                            <property role="Xl_RC" value="interpreter failed" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QsFQ" role="37wK5m">
+                            <ref role="3cqZAo" node="1RzljfOdmnP" resolve="ex" />
+                          </node>
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="1RzljfOdmoo" role="3cqZAp">
-                    <node concept="37vLTI" id="1RzljfOdmop" role="3clFbG">
-                      <node concept="2OqwBi" id="1RzljfOdmoq" role="37vLTx">
-                        <node concept="37vLTw" id="1RzljfOdmor" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1RzljfOdmnP" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="1RzljfOdmos" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="1RzljfOdmot" role="3clFbG">
+                      <node concept="37vLTw" id="1RzljfOdmou" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="1RzljfOdmot" role="37vLTJ">
-                        <node concept="37vLTw" id="1RzljfOdmou" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="1RzljfOdmov" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgJhQh" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="1RzljfOdmoq" role="37wK5m">
+                          <node concept="37vLTw" id="1RzljfOdmor" role="2Oq$k0">
+                            <ref role="3cqZAo" node="1RzljfOdmnP" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="1RzljfOdmos" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -1284,50 +1276,44 @@
                 </node>
                 <node concept="3clFbS" id="51fdngf$kEI" role="1zc67A">
                   <node concept="3clFbF" id="5s2rYcl9QX1" role="3cqZAp">
-                    <node concept="37vLTI" id="5s2rYcl9QX2" role="3clFbG">
-                      <node concept="3clFbT" id="5s2rYcl9QX3" role="37vLTx" />
-                      <node concept="2OqwBi" id="5s2rYcl9QX4" role="37vLTJ">
-                        <node concept="37vLTw" id="5s2rYcl9QX5" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5s2rYcl9QX6" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="5s2rYcl9QX4" role="3clFbG">
+                      <node concept="37vLTw" id="5s2rYcl9QX5" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgJntB" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgJowW" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5s2rYcl9QX7" role="3cqZAp">
-                    <node concept="37vLTI" id="5s2rYcl9QX8" role="3clFbG">
-                      <node concept="Xl_RD" id="5s2rYcl9QX9" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;interpreter failed internally&gt;" />
+                    <node concept="2OqwBi" id="5s2rYcl9QXa" role="3clFbG">
+                      <node concept="37vLTw" id="5s2rYcl9QXb" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5s2rYcl9QXa" role="37vLTJ">
-                        <node concept="37vLTw" id="5s2rYcl9QXb" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5s2rYcl9QXc" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgJuj2" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="5s2rYcl9QX9" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;interpreter failed internally&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5s2rYcl9QXd" role="3cqZAp">
-                    <node concept="37vLTI" id="5s2rYcl9QXe" role="3clFbG">
-                      <node concept="2OqwBi" id="5s2rYcl9QXm" role="37vLTJ">
-                        <node concept="37vLTw" id="5s2rYcl9QXn" role="2Oq$k0">
-                          <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5s2rYcl9QXo" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="5s2rYcl9QXm" role="3clFbG">
+                      <node concept="37vLTw" id="5s2rYcl9QXn" role="2Oq$k0">
+                        <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14Qtqq" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3YhAT14QtE2" role="37wK5m">
-                          <property role="Xl_RC" value="interpreter failed internally" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QvsQ" role="37wK5m">
-                          <ref role="3cqZAo" node="51fdngf$kEG" resolve="t" />
+                      <node concept="liA8E" id="7LZDtvgJyYQ" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14Qtqq" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3YhAT14QtE2" role="37wK5m">
+                            <property role="Xl_RC" value="interpreter failed internally" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QvsQ" role="37wK5m">
+                            <ref role="3cqZAo" node="51fdngf$kEG" resolve="t" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -1376,21 +1362,19 @@
           </node>
         </node>
         <node concept="3clFbF" id="ub9nkyOKa8" role="3cqZAp">
-          <node concept="37vLTI" id="ub9nkyOKnZ" role="3clFbG">
-            <node concept="3cpWsd" id="ub9nkyOKvq" role="37vLTx">
-              <node concept="37vLTw" id="ub9nkyOKy7" role="3uHU7w">
-                <ref role="3cqZAo" node="ub9nkyOJg4" resolve="begin" />
-              </node>
-              <node concept="37vLTw" id="ub9nkyOKpK" role="3uHU7B">
-                <ref role="3cqZAo" node="ub9nkyOJHG" resolve="end" />
-              </node>
+          <node concept="2OqwBi" id="ub9nkyOKeS" role="3clFbG">
+            <node concept="37vLTw" id="ub9nkyOKa6" role="2Oq$k0">
+              <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
             </node>
-            <node concept="2OqwBi" id="ub9nkyOKeS" role="37vLTJ">
-              <node concept="37vLTw" id="ub9nkyOKa6" role="2Oq$k0">
-                <ref role="3cqZAo" node="ub9nkyOIWH" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="ub9nkyOKgB" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+            <node concept="liA8E" id="7LZDtvgJCLH" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGLwA" resolve="setTime" />
+              <node concept="3cpWsd" id="ub9nkyOKvq" role="37wK5m">
+                <node concept="37vLTw" id="ub9nkyOKy7" role="3uHU7w">
+                  <ref role="3cqZAo" node="ub9nkyOJg4" resolve="begin" />
+                </node>
+                <node concept="37vLTw" id="ub9nkyOKpK" role="3uHU7B">
+                  <ref role="3cqZAo" node="ub9nkyOJHG" resolve="end" />
+                </node>
               </node>
             </node>
           </node>
@@ -1803,7 +1787,7 @@
                   <node concept="3clFbF" id="4ssrwy9SEuU" role="3cqZAp">
                     <node concept="2OqwBi" id="4ssrwy9SEuV" role="3clFbG">
                       <node concept="37vLTw" id="4ssrwy9SEuW" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4ssrwy9SEuY" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817f2" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="59WscmUTnLB" role="2OqNvi">
                         <ref role="37wK5l" node="59WscmUTju7" resolve="nonEmptyItems" />
@@ -1811,9 +1795,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4ssrwy9SEuY" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817f2" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4ssrwy9SEuZ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817f3" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1828,6 +1812,7 @@
     </node>
     <node concept="13i0hz" id="3_DFadMJ62m" role="13h7CS">
       <property role="TrG5h" value="evaluateAll" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="3_DFadMJ62n" role="1B3o_S" />
       <node concept="3cqZAl" id="3_DFadMJ6XN" role="3clF45" />
       <node concept="3clFbS" id="3_DFadMJ62p" role="3clF47">
@@ -1845,7 +1830,7 @@
                   <node concept="3clFbF" id="ub9nkyQ5tv" role="3cqZAp">
                     <node concept="2OqwBi" id="ub9nkyQ5xj" role="3clFbG">
                       <node concept="37vLTw" id="ub9nkyQ5tt" role="2Oq$k0">
-                        <ref role="3cqZAo" node="ub9nkyPfGv" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817f4" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="ub9nkyQaN8" role="2OqNvi">
                         <ref role="37wK5l" to="gdgh:3R3AIvumrTm" resolve="runManually" />
@@ -1854,9 +1839,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="ub9nkyPfGv" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817f4" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="ub9nkyPfGw" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817f5" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1866,6 +1851,7 @@
     </node>
     <node concept="13i0hz" id="eCXD91qMCZ" role="13h7CS">
       <property role="TrG5h" value="evaluateAllAndReport" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="eCXD91qMD0" role="1B3o_S" />
       <node concept="10P_77" id="eCXD91qO35" role="3clF45" />
       <node concept="3clFbS" id="eCXD91qMD2" role="3clF47">
@@ -2147,15 +2133,15 @@
                           <ref role="37wK5l" to="wcxw:7YnpPzFReKN" resolve="isCommentedOut" />
                           <ref role="1Pybhc" to="wcxw:5FzO4t9gN3W" resolve="CommentUtil" />
                           <node concept="37vLTw" id="3Q$zA1CGv$I" role="37wK5m">
-                            <ref role="3cqZAo" node="3Q$zA1CGv$J" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamEfU" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3Q$zA1CGv$J" role="1bW2Oz">
+                  <node concept="gl6BB" id="79LXaAamEfU" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3Q$zA1CGv$K" role="1tU5fm" />
+                    <node concept="2jxLKc" id="79LXaAamEfV" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2290,6 +2276,7 @@
       <property role="2Ki8OM" value="true" />
       <property role="13i0iv" value="false" />
       <property role="TrG5h" value="getTestBodyName" />
+      <property role="13i0it" value="true" />
       <node concept="3clFbS" id="hOw0ICM" role="3clF47">
         <node concept="3cpWs6" id="hOw1a_3" role="3cqZAp">
           <node concept="Xl_RD" id="hOw1aU_" role="3cqZAk">
@@ -2476,6 +2463,7 @@
     </node>
     <node concept="13i0hz" id="6VjyfUYe5Ll" role="13h7CS">
       <property role="TrG5h" value="getSimpleClassNameForGenerator" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="6VjyfUYe5Lm" role="1B3o_S" />
       <node concept="17QB3L" id="6VjyfUYeb8L" role="3clF45" />
       <node concept="3clFbS" id="6VjyfUYe5Lo" role="3clF47">
@@ -2527,6 +2515,7 @@
     </node>
     <node concept="13i0hz" id="6VjyfUYebfH" role="13h7CS">
       <property role="TrG5h" value="getSimpleClassNameForInterpreter" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="6VjyfUYebfI" role="1B3o_S" />
       <node concept="17QB3L" id="6VjyfUYeeBE" role="3clF45" />
       <node concept="3clFbS" id="6VjyfUYebfK" role="3clF47">
@@ -2718,6 +2707,7 @@
     </node>
     <node concept="13i0hz" id="ljKHDcI6Wc" role="13h7CS">
       <property role="TrG5h" value="getClassNameInterpreter" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="ljKHDcI6Wd" role="1B3o_S" />
       <node concept="17QB3L" id="ljKHDcIbeW" role="3clF45" />
       <node concept="3clFbS" id="ljKHDcI6Wf" role="3clF47">
@@ -2834,17 +2824,122 @@
       <node concept="3uibUv" id="ub9nkyOIfF" role="1tU5fm">
         <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
       </node>
+      <node concept="z59LJ" id="7LZDtvgH2Je" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgH2Jf" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgH2Jg" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgH3BI" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgH3BK" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgH3BM" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgH3BO" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgH6Ar" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgG_zY" resolve="getActual" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgH3BJ" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgH6Tt" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgH6Tv" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgH6Tx" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgH74b" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgG_$3" resolve="setActual" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgH6Ts" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgH2Jh" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
+    <node concept="2tJIrI" id="7LZDtvgH8v2" role="jymVt" />
     <node concept="312cEg" id="ub9nkyOIfW" role="jymVt">
       <property role="TrG5h" value="ok" />
       <node concept="3Tm1VV" id="ub9nkyOIhx" role="1B3o_S" />
       <node concept="10P_77" id="ub9nkyOIgh" role="1tU5fm" />
+      <node concept="z59LJ" id="7LZDtvgH7py" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgH7pz" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgH7p$" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgH91c" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgH91e" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgH91g" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgH91i" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgH91m" role="92FcQ">
+                  <ref role="VXe0S" node="ub9nkyPULV" resolve="isOk" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgH91d" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgH9ko" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgH9kq" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgH9ks" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgH9kw" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGFoC" resolve="setOk" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgH9kn" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgH7p_" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
+    <node concept="2tJIrI" id="7LZDtvgH9U3" role="jymVt" />
     <node concept="312cEg" id="ub9nkyOIgM" role="jymVt">
       <property role="TrG5h" value="time" />
       <node concept="3Tm1VV" id="ub9nkyOIhE" role="1B3o_S" />
       <node concept="3cpWsb" id="ub9nkyOIh9" role="1tU5fm" />
+      <node concept="z59LJ" id="7LZDtvgHb58" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgHb59" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgHb5a" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgHb$5" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHb$7" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHb$9" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHb$b" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHb$f" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGLwx" resolve="getTime" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHb$6" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHbRh" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHbRj" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHbRl" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHbRp" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGLwA" resolve="setTime" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHbRg" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgHb5b" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
+    <node concept="2tJIrI" id="7LZDtvgHc9H" role="jymVt" />
     <node concept="312cEg" id="ub9nkyQiZj" role="jymVt">
       <property role="34CwA1" value="false" />
       <property role="eg7rD" value="false" />
@@ -2854,7 +2949,42 @@
       <node concept="3uibUv" id="6C0OSEagiED" role="1tU5fm">
         <ref role="3uigEE" to="oq0c:4AahbtULJtR" resolve="MessageValue" />
       </node>
+      <node concept="z59LJ" id="7LZDtvgHdkM" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgHdkN" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgHdkO" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgHdNZ" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHdO1" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHdO3" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHdO5" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHdO9" role="92FcQ">
+                  <ref role="VXe0S" node="ub9nkyPUM2" resolve="getErrorMessage" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHdO0" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHe7b" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHe7d" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHe7f" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHe7j" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHe7a" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgHdkP" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
+    <node concept="2tJIrI" id="7LZDtvgHeq$" role="jymVt" />
     <node concept="312cEg" id="7lHetQyBMcY" role="jymVt">
       <property role="34CwA1" value="false" />
       <property role="eg7rD" value="false" />
@@ -2864,14 +2994,84 @@
       <node concept="3uibUv" id="7lHetQyBMae" role="1tU5fm">
         <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
       </node>
+      <node concept="z59LJ" id="7LZDtvgHf_D" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgHf_E" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgHf_F" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgHg4S" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHg4U" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHg4W" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHg4Y" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHg52" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGM7u" resolve="getTrace" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHg4T" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHgo4" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHgo6" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHgo8" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHgoc" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGM7z" resolve="setTrace" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHgo3" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgHf_G" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
+    <node concept="2tJIrI" id="7LZDtvgHgEw" role="jymVt" />
     <node concept="312cEg" id="7vHKcHd4kI1" role="jymVt">
       <property role="TrG5h" value="exception" />
       <node concept="3Tm1VV" id="7vHKcHd4leg" role="1B3o_S" />
       <node concept="3uibUv" id="7vHKcHd4kXA" role="1tU5fm">
         <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
       </node>
+      <node concept="z59LJ" id="7LZDtvgHhP_" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgHhPA" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgHhPB" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgHiQt" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHiQv" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHiQx" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHiQz" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHiQB" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGM7M" resolve="getException" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHiQu" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHj8W" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHj8Y" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHj90" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHj94" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGM7R" resolve="setException" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHj8V" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgHhPC" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
+    <node concept="2tJIrI" id="7LZDtvgHjs5" role="jymVt" />
     <node concept="312cEg" id="2ns1RQROtRn" role="jymVt">
       <property role="TrG5h" value="coverage" />
       <node concept="3Tm1VV" id="2ns1RQROtsL" role="1B3o_S" />
@@ -2882,6 +3082,40 @@
         <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
       </node>
       <node concept="10Nm6u" id="2ns1RQRWQTf" role="33vP2m" />
+      <node concept="z59LJ" id="7LZDtvgHkBa" role="lGtFl">
+        <node concept="TZ5HI" id="7LZDtvgHkBb" role="3nqlJM">
+          <node concept="TZ5HA" id="7LZDtvgHkBc" role="3HnX3l">
+            <node concept="1dT_AC" id="7LZDtvgHl6R" role="1dT_Ay">
+              <property role="1dT_AB" value="use " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHl6T" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHl6V" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHl6X" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHl71" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGMvv" resolve="getCoverage" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHl6S" role="1dT_Ay">
+              <property role="1dT_AB" value=" / " />
+            </node>
+            <node concept="1dT_AA" id="7LZDtvgHlq3" role="1dT_Ay">
+              <node concept="92FcH" id="7LZDtvgHlq5" role="qph3F">
+                <node concept="TZ5HA" id="7LZDtvgHlq7" role="2XjZqd" />
+                <node concept="VXe0Z" id="7LZDtvgHlqb" role="92FcQ">
+                  <ref role="VXe0S" node="7LZDtvgGMv$" resolve="setCoverage" />
+                </node>
+              </node>
+            </node>
+            <node concept="1dT_AC" id="7LZDtvgHlq2" role="1dT_Ay">
+              <property role="1dT_AB" value="" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgHkBd" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Deprecated" resolve="Deprecated" />
+      </node>
     </node>
     <node concept="2tJIrI" id="ub9nkyOIgy" role="jymVt" />
     <node concept="3clFbW" id="ub9nkyOIi7" role="jymVt">
@@ -2894,17 +3128,12 @@
       <node concept="3cqZAl" id="5AG05XYBpk$" role="3clF45" />
       <node concept="3Tm1VV" id="5AG05XYBpk_" role="1B3o_S" />
       <node concept="3clFbS" id="5AG05XYBpkA" role="3clF47">
-        <node concept="3clFbF" id="5AG05XYBpzZ" role="3cqZAp">
-          <node concept="37vLTI" id="5AG05XYBqgv" role="3clFbG">
-            <node concept="37vLTw" id="5AG05XYBqhT" role="37vLTx">
+        <node concept="3clFbF" id="7LZDtvgGTr7" role="3cqZAp">
+          <node concept="1rXfSq" id="7LZDtvgGTr5" role="3clFbG">
+            <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+            <node concept="37vLTw" id="7LZDtvgGTL5" role="37wK5m">
               <ref role="3cqZAo" node="5AG05XYBpww" resolve="ok" />
             </node>
-            <node concept="2OqwBi" id="5AG05XYBpFX" role="37vLTJ">
-              <node concept="Xjq3P" id="5AG05XYBpzY" role="2Oq$k0" />
-              <node concept="2OwXpG" id="5AG05XYBpO0" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-              </node>
-            </node>
           </node>
         </node>
       </node>
@@ -2917,30 +3146,20 @@
       <node concept="3cqZAl" id="1vJWYavcZ9X" role="3clF45" />
       <node concept="3Tm1VV" id="1vJWYavcZ9Y" role="1B3o_S" />
       <node concept="3clFbS" id="1vJWYavcZ9Z" role="3clF47">
-        <node concept="3clFbF" id="1vJWYavcZa0" role="3cqZAp">
-          <node concept="37vLTI" id="1vJWYavcZa1" role="3clFbG">
-            <node concept="37vLTw" id="1vJWYavcZa2" role="37vLTx">
+        <node concept="3clFbF" id="7LZDtvgGUN2" role="3cqZAp">
+          <node concept="1rXfSq" id="7LZDtvgGUN0" role="3clFbG">
+            <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+            <node concept="37vLTw" id="7LZDtvgGVbt" role="37wK5m">
               <ref role="3cqZAo" node="1vJWYavcZa6" resolve="ok" />
             </node>
-            <node concept="2OqwBi" id="1vJWYavcZa3" role="37vLTJ">
-              <node concept="Xjq3P" id="1vJWYavcZa4" role="2Oq$k0" />
-              <node concept="2OwXpG" id="1vJWYavcZa5" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-              </node>
-            </node>
           </node>
         </node>
-        <node concept="3clFbF" id="1vJWYavcZqK" role="3cqZAp">
-          <node concept="37vLTI" id="1vJWYavd074" role="3clFbG">
-            <node concept="37vLTw" id="1vJWYavd0fF" role="37vLTx">
+        <node concept="3clFbF" id="7LZDtvgGVVd" role="3cqZAp">
+          <node concept="1rXfSq" id="7LZDtvgGVVb" role="3clFbG">
+            <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+            <node concept="37vLTw" id="7LZDtvgGXFj" role="37wK5m">
               <ref role="3cqZAo" node="1vJWYavcZhc" resolve="errorMessage" />
             </node>
-            <node concept="2OqwBi" id="1vJWYavcZ_D" role="37vLTJ">
-              <node concept="Xjq3P" id="1vJWYavcZqI" role="2Oq$k0" />
-              <node concept="2OwXpG" id="1vJWYavcZHM" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-              </node>
-            </node>
           </node>
         </node>
       </node>
@@ -2953,12 +3172,15 @@
         <node concept="3uibUv" id="6C0OSEagiOl" role="1tU5fm">
           <ref role="3uigEE" to="oq0c:4AahbtULJtR" resolve="MessageValue" />
         </node>
+        <node concept="2AHcQZ" id="7LZDtvgH1Ry" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
       </node>
     </node>
     <node concept="2tJIrI" id="ub9nkyOIff" role="jymVt" />
     <node concept="3Tm1VV" id="ub9nkyOIeX" role="1B3o_S" />
-    <node concept="3uibUv" id="ub9nkyPULL" role="EKbjA">
-      <ref role="3uigEE" to="gdgh:5zG5$Lyex1G" resolve="IResult" />
+    <node concept="3uibUv" id="7LZDtvgGOnh" role="EKbjA">
+      <ref role="3uigEE" node="7LZDtvgGNLS" resolve="IEvalResult" />
     </node>
     <node concept="3clFb_" id="ub9nkyPULV" role="jymVt">
       <property role="1EzhhJ" value="false" />
@@ -2968,6 +3190,10 @@
       <node concept="10P_77" id="ub9nkyPULY" role="3clF45" />
       <node concept="3clFbS" id="ub9nkyPULZ" role="3clF47">
         <node concept="3clFbF" id="ub9nkyPUOR" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOtMU" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: ok is deprecated (use link isOk():boolean \n / link setOk(boolean):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: ok is deprecated (use link isOk():boolean &#10; / link setOk(boolean):void &#10;)&#10;" />
+          </node>
           <node concept="2OqwBi" id="ub9nkyPUPM" role="3clFbG">
             <node concept="Xjq3P" id="ub9nkyPUOO" role="2Oq$k0" />
             <node concept="2OwXpG" id="ub9nkyPUT7" role="2OqNvi">
@@ -2988,6 +3214,10 @@
       </node>
       <node concept="3clFbS" id="ub9nkyPUM6" role="3clF47">
         <node concept="3clFbF" id="ub9nkyPUUB" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOuWg" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: errorMessage is deprecated (use link getErrorMessage():MessageValue \n / link setErrorMessage(MessageValue):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: errorMessage is deprecated (use link getErrorMessage():MessageValue &#10; / link setErrorMessage(MessageValue):void &#10;)&#10;" />
+          </node>
           <node concept="2OqwBi" id="ub9nkyRi3I" role="3clFbG">
             <node concept="Xjq3P" id="ub9nkyRi2O" role="2Oq$k0" />
             <node concept="2OwXpG" id="ub9nkyRi5y" role="2OqNvi">
@@ -3047,17 +3277,15 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbF" id="7vHKcHd4l$k" role="3cqZAp">
-          <node concept="37vLTI" id="7vHKcHd4BFX" role="3clFbG">
-            <node concept="37vLTw" id="7vHKcHd4BZX" role="37vLTx">
-              <ref role="3cqZAo" node="7vHKcHd4kut" resolve="t" />
+        <node concept="3clFbF" id="7LZDtvgOvMV" role="3cqZAp">
+          <node concept="2OqwBi" id="7LZDtvgOwmW" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgOvMT" role="2Oq$k0">
+              <ref role="3cqZAo" node="7vHKcHd4$jM" resolve="res" />
             </node>
-            <node concept="2OqwBi" id="7vHKcHd4$Sg" role="37vLTJ">
-              <node concept="37vLTw" id="7vHKcHd4$jT" role="2Oq$k0">
-                <ref role="3cqZAo" node="7vHKcHd4$jM" resolve="res" />
-              </node>
-              <node concept="2OwXpG" id="7vHKcHd4_ib" role="2OqNvi">
-                <ref role="2Oxat5" node="7vHKcHd4kI1" resolve="exception" />
+            <node concept="liA8E" id="7LZDtvgOx47" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGM7R" resolve="setException" />
+              <node concept="37vLTw" id="7LZDtvgOxrB" role="37wK5m">
+                <ref role="3cqZAo" node="7vHKcHd4kut" resolve="t" />
               </node>
             </node>
           </node>
@@ -3094,14 +3322,14 @@
               </node>
             </node>
           </node>
-          <node concept="37vLTw" id="7p_bE3JnNYJ" role="3clFbw">
-            <ref role="3cqZAo" node="ub9nkyOIfW" resolve="ok" />
+          <node concept="1rXfSq" id="7LZDtvgOy9s" role="3clFbw">
+            <ref role="37wK5l" node="ub9nkyPULV" resolve="isOk" />
           </node>
         </node>
         <node concept="3cpWs6" id="7p_bE3JnOij" role="3cqZAp">
           <node concept="3cpWs3" id="7p_bE3JnQIj" role="3cqZAk">
-            <node concept="37vLTw" id="7p_bE3JnR6b" role="3uHU7w">
-              <ref role="3cqZAo" node="ub9nkyQiZj" resolve="errorMessage" />
+            <node concept="1rXfSq" id="7LZDtvgOyL5" role="3uHU7w">
+              <ref role="37wK5l" node="ub9nkyPUM2" resolve="getErrorMessage" />
             </node>
             <node concept="Xl_RD" id="7p_bE3JnP0V" role="3uHU7B">
               <property role="Xl_RC" value="not ok/" />
@@ -3113,20 +3341,372 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-  </node>
-  <node concept="13h7C7" id="6HHp2WmScKC">
-    <ref role="13h7C2" to="av4b:6HHp2WmRVXt" resolve="NamedAssertRef" />
-    <node concept="13hLZK" id="6HHp2WmScKD" role="13h7CW">
-      <node concept="3clFbS" id="6HHp2WmScKE" role="2VODD2" />
+    <node concept="2tJIrI" id="7LZDtvgGYqB" role="jymVt" />
+    <node concept="3clFb_" id="7LZDtvgG_zY" role="jymVt">
+      <property role="TrG5h" value="getActual" />
+      <node concept="3uibUv" id="7LZDtvgG_zZ" role="3clF45">
+        <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgG_$0" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgG_$1" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgG_$2" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOzUn" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: actual is deprecated (use link getActual():Object \n / link setActual(Object):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: actual is deprecated (use link getActual():Object &#10; / link setActual(Object):void &#10;)&#10;" />
+          </node>
+          <node concept="2OqwBi" id="7LZDtvgG_zV" role="3clFbG">
+            <node concept="Xjq3P" id="7LZDtvgG_zW" role="2Oq$k0" />
+            <node concept="2OwXpG" id="7LZDtvgG_zX" role="2OqNvi">
+              <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOGi0" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
     </node>
-    <node concept="13i0hz" id="6HHp2WmScKI" role="13h7CS">
-      <property role="TrG5h" value="renderReadable" />
-      <property role="13i0it" value="false" />
-      <property role="13i0iv" value="false" />
-      <ref role="13i0hy" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
-      <node concept="3Tm1VV" id="6HHp2WmScKJ" role="1B3o_S" />
-      <node concept="3clFbS" id="6HHp2WmScKM" role="3clF47">
-        <node concept="3clFbF" id="6HHp2WmScLe" role="3cqZAp">
+    <node concept="3clFb_" id="7LZDtvgG_$3" role="jymVt">
+      <property role="TrG5h" value="setActual" />
+      <node concept="3cqZAl" id="7LZDtvgG_$4" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgG_$5" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgG_$6" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgG_$7" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgO$rB" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: actual is deprecated (use link getActual():Object \n / link setActual(Object):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: actual is deprecated (use link getActual():Object &#10; / link setActual(Object):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgG_$8" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgG_$9" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgG_$a" resolve="actual" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgG_zS" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgG_zT" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgG_zU" role="2OqNvi">
+                <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="7LZDtvgG_$a" role="3clF46">
+        <property role="TrG5h" value="actual" />
+        <node concept="3uibUv" id="7LZDtvgG_$b" role="1tU5fm">
+          <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgP1c5" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOHqR" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGFoC" role="jymVt">
+      <property role="TrG5h" value="setOk" />
+      <node concept="3clFbS" id="7LZDtvgGFoF" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGG_W" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgO_9e" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: ok is deprecated (use link isOk():boolean \n / link setOk(boolean):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: ok is deprecated (use link isOk():boolean &#10; / link setOk(boolean):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgGKQq" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgGLkm" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgGGfW" resolve="ok" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgGHrI" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgGG_V" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgGJqT" role="2OqNvi">
+                <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGEGn" role="1B3o_S" />
+      <node concept="3cqZAl" id="7LZDtvgGFCL" role="3clF45" />
+      <node concept="37vLTG" id="7LZDtvgGGfW" role="3clF46">
+        <property role="TrG5h" value="ok" />
+        <node concept="10P_77" id="7LZDtvgGGfV" role="1tU5fm" />
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOHWs" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGLwx" role="jymVt">
+      <property role="TrG5h" value="getTime" />
+      <node concept="3cpWsb" id="7LZDtvgGLwy" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGLwz" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGLw$" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGLw_" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgO_Z3" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: time is deprecated (use link getTime():long \n / link setTime(long):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: time is deprecated (use link getTime():long &#10; / link setTime(long):void &#10;)&#10;" />
+          </node>
+          <node concept="2OqwBi" id="7LZDtvgGLwu" role="3clFbG">
+            <node concept="Xjq3P" id="7LZDtvgGLwv" role="2Oq$k0" />
+            <node concept="2OwXpG" id="7LZDtvgGLww" role="2OqNvi">
+              <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOIuj" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGLwA" role="jymVt">
+      <property role="TrG5h" value="setTime" />
+      <node concept="3cqZAl" id="7LZDtvgGLwB" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGLwC" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGLwD" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGLwE" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOAwl" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: time is deprecated (use link getTime():long \n / link setTime(long):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: time is deprecated (use link getTime():long &#10; / link setTime(long):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgGLwF" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgGLwG" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgGLwH" resolve="time" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgGLwr" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgGLws" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgGLwt" role="2OqNvi">
+                <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="7LZDtvgGLwH" role="3clF46">
+        <property role="TrG5h" value="time" />
+        <node concept="3cpWsb" id="7LZDtvgGLwI" role="1tU5fm" />
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOIZW" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGLQm" role="jymVt">
+      <property role="TrG5h" value="setErrorMessage" />
+      <node concept="3cqZAl" id="7LZDtvgGLQn" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGLQo" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGLQp" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGLQq" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOB2m" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: errorMessage is deprecated (use link getErrorMessage():MessageValue \n / link setErrorMessage(MessageValue):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: errorMessage is deprecated (use link getErrorMessage():MessageValue &#10; / link setErrorMessage(MessageValue):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgGLQr" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgGLQs" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgGLQt" resolve="errorMessage" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgGLQj" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgGLQk" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgGLQl" role="2OqNvi">
+                <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="7LZDtvgGLQt" role="3clF46">
+        <property role="TrG5h" value="errorMessage" />
+        <node concept="3uibUv" id="7LZDtvgGLQu" role="1tU5fm">
+          <ref role="3uigEE" to="oq0c:4AahbtULJtR" resolve="MessageValue" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgP39f" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOJxD" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGM7u" role="jymVt">
+      <property role="TrG5h" value="getTrace" />
+      <node concept="3uibUv" id="7LZDtvgGM7v" role="3clF45">
+        <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGM7w" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGM7x" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGM7y" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOBCC" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: trace is deprecated (use link getTrace():ComputationTrace \n / link setTrace(ComputationTrace):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: trace is deprecated (use link getTrace():ComputationTrace &#10; / link setTrace(ComputationTrace):void &#10;)&#10;" />
+          </node>
+          <node concept="2OqwBi" id="7LZDtvgGM7r" role="3clFbG">
+            <node concept="Xjq3P" id="7LZDtvgGM7s" role="2Oq$k0" />
+            <node concept="2OwXpG" id="7LZDtvgGM7t" role="2OqNvi">
+              <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOK3u" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGM7z" role="jymVt">
+      <property role="TrG5h" value="setTrace" />
+      <node concept="3cqZAl" id="7LZDtvgGM7$" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGM7_" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGM7A" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGM7B" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOCcA" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: trace is deprecated (use link getTrace():ComputationTrace \n / link setTrace(ComputationTrace):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: trace is deprecated (use link getTrace():ComputationTrace &#10; / link setTrace(ComputationTrace):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgGM7C" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgGM7D" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgGM7E" resolve="trace" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgGM7o" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgGM7p" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgGM7q" role="2OqNvi">
+                <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="7LZDtvgGM7E" role="3clF46">
+        <property role="TrG5h" value="trace" />
+        <node concept="3uibUv" id="7LZDtvgGM7F" role="1tU5fm">
+          <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOK_f" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGM7M" role="jymVt">
+      <property role="TrG5h" value="getException" />
+      <node concept="3uibUv" id="7LZDtvgGM7N" role="3clF45">
+        <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGM7O" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGM7P" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGM7Q" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOCKb" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: exception is deprecated (use link getException():Throwable \n / link setException(Throwable):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: exception is deprecated (use link getException():Throwable &#10; / link setException(Throwable):void &#10;)&#10;" />
+          </node>
+          <node concept="2OqwBi" id="7LZDtvgGM7J" role="3clFbG">
+            <node concept="Xjq3P" id="7LZDtvgGM7K" role="2Oq$k0" />
+            <node concept="2OwXpG" id="7LZDtvgGM7L" role="2OqNvi">
+              <ref role="2Oxat5" node="7vHKcHd4kI1" resolve="exception" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOL6Y" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGM7R" role="jymVt">
+      <property role="TrG5h" value="setException" />
+      <node concept="3cqZAl" id="7LZDtvgGM7S" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGM7T" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGM7U" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGM7V" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgODSP" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: exception is deprecated (use link getException():Throwable \n / link setException(Throwable):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: exception is deprecated (use link getException():Throwable &#10; / link setException(Throwable):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgGM7W" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgGM7X" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgGM7Y" resolve="exception" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgGM7G" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgGM7H" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgGM7I" role="2OqNvi">
+                <ref role="2Oxat5" node="7vHKcHd4kI1" resolve="exception" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="7LZDtvgGM7Y" role="3clF46">
+        <property role="TrG5h" value="exception" />
+        <node concept="3uibUv" id="7LZDtvgGM7Z" role="1tU5fm">
+          <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOLCN" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGMvv" role="jymVt">
+      <property role="TrG5h" value="getCoverage" />
+      <node concept="3uibUv" id="7LZDtvgGMvw" role="3clF45">
+        <ref role="3uigEE" to="2ahs:4_qY3E5ifTh" resolve="ICoverageAnalyzer" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGMvx" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGMvy" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGMvz" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOErA" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: coverage is deprecated (use link getCoverage():ICoverageAnalyzer \n / link setCoverage(ICoverageAnalyzer):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: coverage is deprecated (use link getCoverage():ICoverageAnalyzer &#10; / link setCoverage(ICoverageAnalyzer):void &#10;)&#10;" />
+          </node>
+          <node concept="2OqwBi" id="7LZDtvgGMvs" role="3clFbG">
+            <node concept="Xjq3P" id="7LZDtvgGMvt" role="2Oq$k0" />
+            <node concept="2OwXpG" id="7LZDtvgGMvu" role="2OqNvi">
+              <ref role="2Oxat5" node="2ns1RQROtRn" resolve="coverage" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgOMaV" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGMv$" role="jymVt">
+      <property role="TrG5h" value="setCoverage" />
+      <node concept="3cqZAl" id="7LZDtvgGMv_" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGMvA" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGMvB" role="3clF47">
+        <node concept="3clFbF" id="7LZDtvgGMvC" role="3cqZAp">
+          <node concept="15s5l7" id="7LZDtvgOEX0" role="lGtFl">
+            <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Warning: coverage is deprecated (use link getCoverage():ICoverageAnalyzer \n / link setCoverage(ICoverageAnalyzer):void \n)\n&quot;;FLAVOUR_RULE_ID=&quot;[r:cec599e3-51d2-48a7-af31-989e3cbd593c(jetbrains.mps.lang.core.typesystem)/1225207423729]&quot;;" />
+            <property role="huDt6" value="Warning: coverage is deprecated (use link getCoverage():ICoverageAnalyzer &#10; / link setCoverage(ICoverageAnalyzer):void &#10;)&#10;" />
+          </node>
+          <node concept="37vLTI" id="7LZDtvgGMvD" role="3clFbG">
+            <node concept="37vLTw" id="7LZDtvgGMvE" role="37vLTx">
+              <ref role="3cqZAo" node="7LZDtvgGMvF" resolve="coverage" />
+            </node>
+            <node concept="2OqwBi" id="7LZDtvgGMvp" role="37vLTJ">
+              <node concept="Xjq3P" id="7LZDtvgGMvq" role="2Oq$k0" />
+              <node concept="2OwXpG" id="7LZDtvgGMvr" role="2OqNvi">
+                <ref role="2Oxat5" node="2ns1RQROtRn" resolve="coverage" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="7LZDtvgGMvF" role="3clF46">
+        <property role="TrG5h" value="coverage" />
+        <node concept="3uibUv" id="7LZDtvgGMvG" role="1tU5fm">
+          <ref role="3uigEE" to="2ahs:4_qY3E5ifTh" resolve="ICoverageAnalyzer" />
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7LZDtvgONk6" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+  </node>
+  <node concept="13h7C7" id="6HHp2WmScKC">
+    <ref role="13h7C2" to="av4b:6HHp2WmRVXt" resolve="NamedAssertRef" />
+    <node concept="13hLZK" id="6HHp2WmScKD" role="13h7CW">
+      <node concept="3clFbS" id="6HHp2WmScKE" role="2VODD2" />
+    </node>
+    <node concept="13i0hz" id="6HHp2WmScKI" role="13h7CS">
+      <property role="TrG5h" value="renderReadable" />
+      <property role="13i0it" value="false" />
+      <property role="13i0iv" value="false" />
+      <ref role="13i0hy" to="pbu6:4Y0vh0cfqjE" resolve="renderReadable" />
+      <node concept="3Tm1VV" id="6HHp2WmScKJ" role="1B3o_S" />
+      <node concept="3clFbS" id="6HHp2WmScKM" role="3clF47">
+        <node concept="3clFbF" id="6HHp2WmScLe" role="3cqZAp">
           <node concept="2OqwBi" id="HywGhj7N6$" role="3clFbG">
             <node concept="2OqwBi" id="HywGhj7MOZ" role="2Oq$k0">
               <node concept="13iPFW" id="HywGhj7MLI" role="2Oq$k0" />
@@ -3169,7 +3749,7 @@
                     <node concept="3fqX7Q" id="4_qY3E4DnMj" role="3clFbG">
                       <node concept="2OqwBi" id="4_qY3E4Do9D" role="3fr31v">
                         <node concept="37vLTw" id="4_qY3E4DnVy" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4_qY3E4DnFo" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817f8" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="4_qY3E4DoN5" role="2OqNvi">
                           <node concept="chp4Y" id="4_qY3E4DoZe" role="cj9EA">
@@ -3180,9 +3760,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4_qY3E4DnFo" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817f8" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4_qY3E4DnFp" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817f9" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3312,7 +3892,7 @@
     <ref role="13h7C2" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
     <node concept="13i0hz" id="uGVYUilnJe" role="13h7CS">
       <property role="TrG5h" value="getInterpreter" />
-      <property role="13i0it" value="false" />
+      <property role="13i0it" value="true" />
       <property role="13i0iv" value="false" />
       <node concept="3Tmbuc" id="uGVYUilnJf" role="1B3o_S" />
       <node concept="3clFbS" id="uGVYUilnJi" role="3clF47">
@@ -3329,6 +3909,7 @@
     </node>
     <node concept="13i0hz" id="uGVYUilGwx" role="13h7CS">
       <property role="TrG5h" value="eval" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="uGVYUilGwy" role="1B3o_S" />
       <node concept="3uibUv" id="6gYCXSufGvF" role="3clF45">
         <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
@@ -3377,6 +3958,7 @@
     </node>
     <node concept="13i0hz" id="7obiejCzVLz" role="13h7CS">
       <property role="TrG5h" value="evalWithTraceAndEnv" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="7obiejCzVL$" role="1B3o_S" />
       <node concept="3uibUv" id="4Pi6J8CcrTu" role="3clF45">
         <ref role="3uigEE" to="pbu6:4Pi6J8Cccqb" resolve="ValueAndTraceAndEnv" />
@@ -3432,11 +4014,11 @@
           <node concept="3cpWsn" id="2BQOEA1wC7f" role="3cpWs9">
             <property role="TrG5h" value="result" />
             <node concept="3uibUv" id="2BQOEA1wC7g" role="1tU5fm">
-              <ref role="3uigEE" node="ub9nkyOIeW" resolve="EvalResult" />
+              <ref role="3uigEE" node="7LZDtvgGNLS" resolve="IEvalResult" />
             </node>
             <node concept="0kSF2" id="1LbYOz9xBc4" role="33vP2m">
               <node concept="3uibUv" id="1LbYOz9xBc7" role="0kSFW">
-                <ref role="3uigEE" node="ub9nkyOIeW" resolve="EvalResult" />
+                <ref role="3uigEE" node="7LZDtvgGNLS" resolve="IEvalResult" />
               </node>
               <node concept="BsUDl" id="1LbYOz9x$vl" role="0kSFX">
                 <ref role="37wK5l" to="gdgh:3R3AIvumwq7" resolve="getLastResult" />
@@ -3597,7 +4179,7 @@
                     <ref role="3cqZAo" node="2BQOEA1wC7f" resolve="result" />
                   </node>
                   <node concept="liA8E" id="2BQOEA1wC8c" role="2OqNvi">
-                    <ref role="37wK5l" node="ub9nkyPULV" resolve="isOk" />
+                    <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
                   </node>
                 </node>
               </node>
@@ -3636,6 +4218,7 @@
     </node>
     <node concept="13i0hz" id="4KZjPKUdEYm" role="13h7CS">
       <property role="TrG5h" value="executeTest" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="4KZjPKUdEYn" role="1B3o_S" />
       <node concept="3uibUv" id="4KZjPKUdFqu" role="3clF45">
         <ref role="3uigEE" node="ub9nkyOIeW" resolve="EvalResult" />
@@ -3850,7 +4433,7 @@
                         <node concept="3cpWsn" id="5IR_boHRzJR" role="3cpWs9">
                           <property role="TrG5h" value="r" />
                           <node concept="3uibUv" id="5IR_boHRzJS" role="1tU5fm">
-                            <ref role="3uigEE" node="ub9nkyOIeW" resolve="EvalResult" />
+                            <ref role="3uigEE" node="7LZDtvgGNLS" resolve="IEvalResult" />
                           </node>
                           <node concept="2OqwBi" id="5IR_boHRmeq" role="33vP2m">
                             <node concept="2qgKlT" id="4KZjPKUfw$y" role="2OqNvi">
@@ -3872,8 +4455,8 @@
                             <node concept="37vLTw" id="6LLJO$xArjH" role="2Oq$k0">
                               <ref role="3cqZAo" node="5IR_boHRzJR" resolve="r" />
                             </node>
-                            <node concept="2OwXpG" id="6LLJO$xArJq" role="2OqNvi">
-                              <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                            <node concept="liA8E" id="7LZDtvgOrKw" role="2OqNvi">
+                              <ref role="37wK5l" node="7LZDtvgGPoM" resolve="getTrace" />
                             </node>
                           </node>
                         </node>
@@ -4164,7 +4747,7 @@
         <node concept="3clFbJ" id="5sTgzMBPOWG" role="3cqZAp">
           <node concept="2ZW3vV" id="5sTgzMBPP8W" role="3clFbw">
             <node concept="3uibUv" id="5sTgzMBPPa_" role="2ZW6by">
-              <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+              <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
             </node>
             <node concept="37vLTw" id="5sTgzMBPOWM" role="2ZW6bz">
               <ref role="3cqZAo" node="5sTgzMBPOW1" resolve="o" />
@@ -4179,12 +4762,12 @@
                       <ref role="3cqZAo" node="5sTgzMBPOW1" resolve="o" />
                     </node>
                     <node concept="3uibUv" id="5sTgzMBPPdT" role="10QFUM">
-                      <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+                      <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
                     </node>
                   </node>
                 </node>
-                <node concept="2OwXpG" id="5sTgzMBPPuo" role="2OqNvi">
-                  <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                <node concept="liA8E" id="7LZDtvhojhg" role="2OqNvi">
+                  <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                 </node>
               </node>
             </node>
@@ -4526,21 +5109,19 @@
                 </node>
                 <node concept="3clFbS" id="78hTg1$TP43" role="1zc67A">
                   <node concept="3clFbF" id="YcTL0vWT5" role="3cqZAp">
-                    <node concept="37vLTI" id="YcTL0vXGe" role="3clFbG">
-                      <node concept="2OqwBi" id="YcTL0vY5K" role="37vLTx">
-                        <node concept="37vLTw" id="YcTL0vXIE" role="2Oq$k0">
-                          <ref role="3cqZAo" node="78hTg1$TP3Z" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="YcTL0vY$x" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="YcTL0vX5F" role="3clFbG">
+                      <node concept="37vLTw" id="YcTL0vWT3" role="2Oq$k0">
+                        <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="YcTL0vX5F" role="37vLTJ">
-                        <node concept="37vLTw" id="YcTL0vWT3" role="2Oq$k0">
-                          <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="YcTL0vXkg" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgNH_d" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="YcTL0vY5K" role="37wK5m">
+                          <node concept="37vLTw" id="YcTL0vXIE" role="2Oq$k0">
+                            <ref role="3cqZAo" node="78hTg1$TP3Z" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="YcTL0vY$x" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -4548,74 +5129,70 @@
                   <node concept="3clFbJ" id="5bElvpN3NY5" role="3cqZAp">
                     <node concept="3clFbS" id="5bElvpN3NY7" role="3clFbx">
                       <node concept="3clFbF" id="5bElvpN3R19" role="3cqZAp">
-                        <node concept="37vLTI" id="5bElvpN3RSE" role="3clFbG">
-                          <node concept="2OqwBi" id="60Qa1k_Jo5V" role="37vLTx">
-                            <node concept="2OqwBi" id="UwUtc3zwlM" role="2Oq$k0">
-                              <node concept="2OqwBi" id="5bElvpN3SwZ" role="2Oq$k0">
-                                <node concept="37vLTw" id="5bElvpN3S14" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="78hTg1$TP3Z" resolve="ex" />
+                        <node concept="2OqwBi" id="5bElvpN3RcR" role="3clFbG">
+                          <node concept="37vLTw" id="5bElvpN3R17" role="2Oq$k0">
+                            <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
+                          </node>
+                          <node concept="liA8E" id="7LZDtvgNIdy" role="2OqNvi">
+                            <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                            <node concept="2OqwBi" id="60Qa1k_Jo5V" role="37wK5m">
+                              <node concept="2OqwBi" id="UwUtc3zwlM" role="2Oq$k0">
+                                <node concept="2OqwBi" id="5bElvpN3SwZ" role="2Oq$k0">
+                                  <node concept="37vLTw" id="5bElvpN3S14" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="78hTg1$TP3Z" resolve="ex" />
+                                  </node>
+                                  <node concept="2OwXpG" id="5bElvpN3T1Q" role="2OqNvi">
+                                    <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                  </node>
                                 </node>
-                                <node concept="2OwXpG" id="5bElvpN3T1Q" role="2OqNvi">
-                                  <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                <node concept="liA8E" id="UwUtc3zwId" role="2OqNvi">
+                                  <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
                                 </node>
                               </node>
-                              <node concept="liA8E" id="UwUtc3zwId" role="2OqNvi">
-                                <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
-                              </node>
-                            </node>
-                            <node concept="liA8E" id="60Qa1k_JoK0" role="2OqNvi">
-                              <ref role="37wK5l" to="wyt6:~String.contains(java.lang.CharSequence)" resolve="contains" />
-                              <node concept="2OqwBi" id="60Qa1k_Jpll" role="37wK5m">
-                                <node concept="13iPFW" id="60Qa1k_JoSn" role="2Oq$k0" />
-                                <node concept="3TrcHB" id="60Qa1k_Jq0f" role="2OqNvi">
-                                  <ref role="3TsBF5" to="av4b:5bElvpN178O" resolve="errmsg" />
+                              <node concept="liA8E" id="60Qa1k_JoK0" role="2OqNvi">
+                                <ref role="37wK5l" to="wyt6:~String.contains(java.lang.CharSequence)" resolve="contains" />
+                                <node concept="2OqwBi" id="60Qa1k_Jpll" role="37wK5m">
+                                  <node concept="13iPFW" id="60Qa1k_JoSn" role="2Oq$k0" />
+                                  <node concept="3TrcHB" id="60Qa1k_Jq0f" role="2OqNvi">
+                                    <ref role="3TsBF5" to="av4b:5bElvpN178O" resolve="errmsg" />
+                                  </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="2OqwBi" id="5bElvpN3RcR" role="37vLTJ">
-                            <node concept="37vLTw" id="5bElvpN3R17" role="2Oq$k0">
-                              <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                            </node>
-                            <node concept="2OwXpG" id="5bElvpN3Roh" role="2OqNvi">
-                              <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                            </node>
-                          </node>
                         </node>
                       </node>
                       <node concept="3clFbJ" id="5bElvpN3VRS" role="3cqZAp">
                         <node concept="3clFbS" id="5bElvpN3VRU" role="3clFbx">
                           <node concept="3clFbF" id="5bElvpN3W_g" role="3cqZAp">
-                            <node concept="37vLTI" id="5bElvpN3X$v" role="3clFbG">
-                              <node concept="2OqwBi" id="5bElvpN3WKW" role="37vLTJ">
-                                <node concept="37vLTw" id="5bElvpN3W_e" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                                </node>
-                                <node concept="2OwXpG" id="5bElvpN3X3G" role="2OqNvi">
-                                  <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                                </node>
+                            <node concept="2OqwBi" id="5bElvpN3WKW" role="3clFbG">
+                              <node concept="37vLTw" id="5bElvpN3W_e" role="2Oq$k0">
+                                <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                               </node>
-                              <node concept="2ShNRf" id="6C0OSEaI7Hv" role="37vLTx">
-                                <node concept="1pGfFk" id="6C0OSEaI8hF" role="2ShVmc">
-                                  <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                                  <node concept="2YIFZM" id="5bElvpN3YHE" role="37wK5m">
-                                    <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
-                                    <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
-                                    <node concept="Xl_RD" id="5bElvpN3YQ_" role="37wK5m">
-                                      <property role="Xl_RC" value="Expected error: '%s', but was: '%s'" />
-                                    </node>
-                                    <node concept="2OqwBi" id="5bElvpN43r_" role="37wK5m">
-                                      <node concept="13iPFW" id="5bElvpN430P" role="2Oq$k0" />
-                                      <node concept="3TrcHB" id="5bElvpN43UN" role="2OqNvi">
-                                        <ref role="3TsBF5" to="av4b:5bElvpN178O" resolve="errmsg" />
+                              <node concept="liA8E" id="7LZDtvgNMdg" role="2OqNvi">
+                                <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                                <node concept="2ShNRf" id="6C0OSEaI7Hv" role="37wK5m">
+                                  <node concept="1pGfFk" id="6C0OSEaI8hF" role="2ShVmc">
+                                    <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                                    <node concept="2YIFZM" id="5bElvpN3YHE" role="37wK5m">
+                                      <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
+                                      <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
+                                      <node concept="Xl_RD" id="5bElvpN3YQ_" role="37wK5m">
+                                        <property role="Xl_RC" value="Expected error: '%s', but was: '%s'" />
                                       </node>
-                                    </node>
-                                    <node concept="2OqwBi" id="5bElvpN44TP" role="37wK5m">
-                                      <node concept="37vLTw" id="5bElvpN44rM" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="78hTg1$TP3Z" resolve="ex" />
+                                      <node concept="2OqwBi" id="5bElvpN43r_" role="37wK5m">
+                                        <node concept="13iPFW" id="5bElvpN430P" role="2Oq$k0" />
+                                        <node concept="3TrcHB" id="5bElvpN43UN" role="2OqNvi">
+                                          <ref role="3TsBF5" to="av4b:5bElvpN178O" resolve="errmsg" />
+                                        </node>
                                       </node>
-                                      <node concept="2OwXpG" id="5bElvpN45Mr" role="2OqNvi">
-                                        <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                      <node concept="2OqwBi" id="5bElvpN44TP" role="37wK5m">
+                                        <node concept="37vLTw" id="5bElvpN44rM" role="2Oq$k0">
+                                          <ref role="3cqZAo" node="78hTg1$TP3Z" resolve="ex" />
+                                        </node>
+                                        <node concept="2OwXpG" id="5bElvpN45Mr" role="2OqNvi">
+                                          <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                        </node>
                                       </node>
                                     </node>
                                   </node>
@@ -4629,8 +5206,8 @@
                             <node concept="37vLTw" id="5bElvpN3Wwl" role="2Oq$k0">
                               <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                             </node>
-                            <node concept="2OwXpG" id="5bElvpN3Wwm" role="2OqNvi">
-                              <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                            <node concept="liA8E" id="7LZDtvgNLTx" role="2OqNvi">
+                              <ref role="37wK5l" node="ub9nkyPULV" resolve="isOk" />
                             </node>
                           </node>
                         </node>
@@ -4648,16 +5225,14 @@
                     <node concept="9aQIb" id="5bElvpN3QeM" role="9aQIa">
                       <node concept="3clFbS" id="5bElvpN3QeN" role="9aQI4">
                         <node concept="3clFbF" id="78hTg1$TPw5" role="3cqZAp">
-                          <node concept="37vLTI" id="78hTg1$TQaq" role="3clFbG">
-                            <node concept="3clFbT" id="78hTg1$TQbK" role="37vLTx">
-                              <property role="3clFbU" value="true" />
+                          <node concept="2OqwBi" id="78hTg1$TPGs" role="3clFbG">
+                            <node concept="37vLTw" id="78hTg1$TPw4" role="2Oq$k0">
+                              <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                             </node>
-                            <node concept="2OqwBi" id="78hTg1$TPGs" role="37vLTJ">
-                              <node concept="37vLTw" id="78hTg1$TPw4" role="2Oq$k0">
-                                <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                              </node>
-                              <node concept="2OwXpG" id="78hTg1$TPOk" role="2OqNvi">
-                                <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                            <node concept="liA8E" id="7LZDtvgNOGN" role="2OqNvi">
+                              <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                              <node concept="3clFbT" id="7LZDtvgNP5B" role="37wK5m">
+                                <property role="3clFbU" value="true" />
                               </node>
                             </node>
                           </node>
@@ -4679,59 +5254,53 @@
                 </node>
                 <node concept="3clFbS" id="78hTg1_hS2t" role="1zc67A">
                   <node concept="3clFbF" id="78hTg1_hSrp" role="3cqZAp">
-                    <node concept="37vLTI" id="78hTg1_hSrq" role="3clFbG">
-                      <node concept="3clFbT" id="78hTg1_hSrr" role="37vLTx" />
-                      <node concept="2OqwBi" id="78hTg1_hSrs" role="37vLTJ">
-                        <node concept="37vLTw" id="78hTg1_hSrt" role="2Oq$k0">
-                          <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="78hTg1_hSru" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="78hTg1_hSrs" role="3clFbG">
+                      <node concept="37vLTw" id="78hTg1_hSrt" role="2Oq$k0">
+                        <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgNS1w" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgNSqo" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="6UrZmTWnTSh" role="3cqZAp">
-                    <node concept="37vLTI" id="6UrZmTWnTSi" role="3clFbG">
-                      <node concept="2OqwBi" id="6UrZmTWnTSj" role="37vLTJ">
-                        <node concept="37vLTw" id="6UrZmTWnTSk" role="2Oq$k0">
-                          <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="6UrZmTWnTSl" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="6UrZmTWnTSj" role="3clFbG">
+                      <node concept="37vLTw" id="6UrZmTWnTSk" role="2Oq$k0">
+                        <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                       </node>
-                      <node concept="2ShNRf" id="6UrZmTWnTSm" role="37vLTx">
-                        <node concept="1pGfFk" id="6UrZmTWnTSn" role="2ShVmc">
-                          <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                          <node concept="3cpWs3" id="6UrZmTWnUME" role="37wK5m">
-                            <node concept="2OqwBi" id="6UrZmTWoFdN" role="3uHU7w">
-                              <node concept="37vLTw" id="6UrZmTWoEPG" role="2Oq$k0">
-                                <ref role="3cqZAo" node="78hTg1_hS2r" resolve="ire" />
+                      <node concept="liA8E" id="7LZDtvgNSUn" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="2ShNRf" id="6UrZmTWnTSm" role="37wK5m">
+                          <node concept="1pGfFk" id="6UrZmTWnTSn" role="2ShVmc">
+                            <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                            <node concept="3cpWs3" id="6UrZmTWnUME" role="37wK5m">
+                              <node concept="2OqwBi" id="6UrZmTWoFdN" role="3uHU7w">
+                                <node concept="37vLTw" id="6UrZmTWoEPG" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="78hTg1_hS2r" resolve="ire" />
+                                </node>
+                                <node concept="liA8E" id="6UrZmTWoFF$" role="2OqNvi">
+                                  <ref role="37wK5l" to="2ahs:9nJ_zCAH8C" resolve="getMessage" />
+                                </node>
                               </node>
-                              <node concept="liA8E" id="6UrZmTWoFF$" role="2OqNvi">
-                                <ref role="37wK5l" to="2ahs:9nJ_zCAH8C" resolve="getMessage" />
+                              <node concept="Xl_RD" id="6UrZmTWnTSo" role="3uHU7B">
+                                <property role="Xl_RC" value="failed with InterpreterRuntimeException: " />
                               </node>
                             </node>
-                            <node concept="Xl_RD" id="6UrZmTWnTSo" role="3uHU7B">
-                              <property role="Xl_RC" value="failed with InterpreterRuntimeException: " />
-                            </node>
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="6UrZmTWoDrv" role="3cqZAp">
-                    <node concept="37vLTI" id="6UrZmTWoEBq" role="3clFbG">
-                      <node concept="37vLTw" id="6UrZmTWoEC$" role="37vLTx">
-                        <ref role="3cqZAo" node="78hTg1_hS2r" resolve="ire" />
+                    <node concept="2OqwBi" id="6UrZmTWoDFU" role="3clFbG">
+                      <node concept="37vLTw" id="6UrZmTWoDrt" role="2Oq$k0">
+                        <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="6UrZmTWoDFU" role="37vLTJ">
-                        <node concept="37vLTw" id="6UrZmTWoDrt" role="2Oq$k0">
-                          <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="6UrZmTWoDUO" role="2OqNvi">
-                          <ref role="2Oxat5" node="7vHKcHd4kI1" resolve="exception" />
+                      <node concept="liA8E" id="7LZDtvgNWg1" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7R" resolve="setException" />
+                        <node concept="37vLTw" id="7LZDtvgNWxP" role="37wK5m">
+                          <ref role="3cqZAo" node="78hTg1_hS2r" resolve="ire" />
                         </node>
                       </node>
                     </node>
@@ -4767,7 +5336,7 @@
                   <node concept="3cpWsn" id="5syY_AKHTDx" role="3cpWs9">
                     <property role="TrG5h" value="rat" />
                     <node concept="3uibUv" id="5syY_AKHTDu" role="1tU5fm">
-                      <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+                      <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
                     </node>
                     <node concept="10Nm6u" id="5syY_AKHV9s" role="33vP2m" />
                   </node>
@@ -4791,35 +5360,29 @@
                   </node>
                 </node>
                 <node concept="3clFbF" id="78hTg1$TQd4" role="3cqZAp">
-                  <node concept="37vLTI" id="78hTg1$TQMD" role="3clFbG">
-                    <node concept="3clFbT" id="78hTg1$TQOO" role="37vLTx">
-                      <property role="3clFbU" value="false" />
+                  <node concept="2OqwBi" id="78hTg1$TQjf" role="3clFbG">
+                    <node concept="37vLTw" id="78hTg1$TQd2" role="2Oq$k0">
+                      <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                     </node>
-                    <node concept="2OqwBi" id="78hTg1$TQjf" role="37vLTJ">
-                      <node concept="37vLTw" id="78hTg1$TQd2" role="2Oq$k0">
-                        <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                      </node>
-                      <node concept="2OwXpG" id="78hTg1$TQrN" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                      </node>
+                    <node concept="liA8E" id="7LZDtvgNAXV" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                      <node concept="3clFbT" id="7LZDtvgNBlM" role="37wK5m" />
                     </node>
                   </node>
                 </node>
                 <node concept="3clFbF" id="78hTg1$TQVi" role="3cqZAp">
-                  <node concept="37vLTI" id="78hTg1$TRBb" role="3clFbG">
-                    <node concept="2OqwBi" id="78hTg1$TR8v" role="37vLTJ">
-                      <node concept="37vLTw" id="78hTg1$TQVg" role="2Oq$k0">
-                        <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                      </node>
-                      <node concept="2OwXpG" id="78hTg1$TRh7" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                      </node>
-                    </node>
-                    <node concept="2ShNRf" id="6C0OSEaI6Nu" role="37vLTx">
-                      <node concept="1pGfFk" id="6C0OSEaI7nE" role="2ShVmc">
-                        <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                        <node concept="Xl_RD" id="78hTg1$TRCh" role="37wK5m">
-                          <property role="Xl_RC" value="no constraint failure occured." />
+                  <node concept="2OqwBi" id="78hTg1$TR8v" role="3clFbG">
+                    <node concept="37vLTw" id="78hTg1$TQVg" role="2Oq$k0">
+                      <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
+                    </node>
+                    <node concept="liA8E" id="7LZDtvgNEh8" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                      <node concept="2ShNRf" id="6C0OSEaI6Nu" role="37wK5m">
+                        <node concept="1pGfFk" id="6C0OSEaI7nE" role="2ShVmc">
+                          <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                          <node concept="Xl_RD" id="78hTg1$TRCh" role="37wK5m">
+                            <property role="Xl_RC" value="no constraint failure occured." />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -4828,21 +5391,19 @@
                 <node concept="3clFbJ" id="5syY_AKHVqh" role="3cqZAp">
                   <node concept="3clFbS" id="5syY_AKHVqj" role="3clFbx">
                     <node concept="3clFbF" id="5syY_AKHT36" role="3cqZAp">
-                      <node concept="37vLTI" id="5syY_AKHTkl" role="3clFbG">
-                        <node concept="2OqwBi" id="5syY_AKHUd2" role="37vLTx">
-                          <node concept="37vLTw" id="5syY_AKHU7s" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5syY_AKHTDx" resolve="rat" />
-                          </node>
-                          <node concept="2OwXpG" id="5syY_AKHUmu" role="2OqNvi">
-                            <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
-                          </node>
+                      <node concept="2OqwBi" id="5syY_AKHUAQ" role="3clFbG">
+                        <node concept="37vLTw" id="5syY_AKHT34" role="2Oq$k0">
+                          <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="5syY_AKHUAQ" role="37vLTJ">
-                          <node concept="37vLTw" id="5syY_AKHT34" role="2Oq$k0">
-                            <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="5syY_AKHURZ" role="2OqNvi">
-                            <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                        <node concept="liA8E" id="7LZDtvgNFpo" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                          <node concept="2OqwBi" id="5syY_AKHUd2" role="37wK5m">
+                            <node concept="37vLTw" id="5syY_AKHU7s" role="2Oq$k0">
+                              <ref role="3cqZAo" node="5syY_AKHTDx" resolve="rat" />
+                            </node>
+                            <node concept="liA8E" id="7LZDtvhoQ$D" role="2OqNvi">
+                              <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                            </node>
                           </node>
                         </node>
                       </node>
@@ -4873,21 +5434,19 @@
           </node>
         </node>
         <node concept="3clFbF" id="78hTg1$TLpD" role="3cqZAp">
-          <node concept="37vLTI" id="78hTg1$TLpE" role="3clFbG">
-            <node concept="3cpWsd" id="78hTg1$TLpF" role="37vLTx">
-              <node concept="37vLTw" id="78hTg1$TLpG" role="3uHU7w">
-                <ref role="3cqZAo" node="78hTg1$TLoB" resolve="begin" />
-              </node>
-              <node concept="37vLTw" id="78hTg1$TLpH" role="3uHU7B">
-                <ref role="3cqZAo" node="78hTg1$TLpA" resolve="end" />
-              </node>
+          <node concept="2OqwBi" id="78hTg1$TLpI" role="3clFbG">
+            <node concept="37vLTw" id="78hTg1$TLpJ" role="2Oq$k0">
+              <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
             </node>
-            <node concept="2OqwBi" id="78hTg1$TLpI" role="37vLTJ">
-              <node concept="37vLTw" id="78hTg1$TLpJ" role="2Oq$k0">
-                <ref role="3cqZAo" node="78hTg1$TLoy" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="78hTg1$TLpK" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+            <node concept="liA8E" id="7LZDtvgNY4m" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGLwA" resolve="setTime" />
+              <node concept="3cpWsd" id="78hTg1$TLpF" role="37wK5m">
+                <node concept="37vLTw" id="78hTg1$TLpG" role="3uHU7w">
+                  <ref role="3cqZAo" node="78hTg1$TLoB" resolve="begin" />
+                </node>
+                <node concept="37vLTw" id="78hTg1$TLpH" role="3uHU7B">
+                  <ref role="3cqZAo" node="78hTg1$TLpA" resolve="end" />
+                </node>
               </node>
             </node>
           </node>
@@ -4947,7 +5506,7 @@
                         <node concept="2OqwBi" id="6UrZmTWpfp4" role="3clFbG">
                           <node concept="2OqwBi" id="6UrZmTWpdBF" role="2Oq$k0">
                             <node concept="37vLTw" id="6UrZmTWpdBG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="78hTg1_ehn4" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817fa" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="6UrZmTWpdBH" role="2OqNvi" />
                           </node>
@@ -4957,9 +5516,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="78hTg1_ehn4" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fa" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="78hTg1_ehn5" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fb" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -5027,16 +5586,14 @@
           </node>
         </node>
         <node concept="3clFbF" id="4_qY3E4CWn7" role="3cqZAp">
-          <node concept="37vLTI" id="4_qY3E4D9sf" role="3clFbG">
-            <node concept="3clFbT" id="4_qY3E4D9wP" role="37vLTx">
-              <property role="3clFbU" value="true" />
+          <node concept="2OqwBi" id="4_qY3E4D8V1" role="3clFbG">
+            <node concept="37vLTw" id="4_qY3E4D8Os" role="2Oq$k0">
+              <ref role="3cqZAo" node="4_qY3E4D8Op" resolve="r" />
             </node>
-            <node concept="2OqwBi" id="4_qY3E4D8V1" role="37vLTJ">
-              <node concept="37vLTw" id="4_qY3E4D8Os" role="2Oq$k0">
-                <ref role="3cqZAo" node="4_qY3E4D8Op" resolve="r" />
-              </node>
-              <node concept="2OwXpG" id="4_qY3E4D92M" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+            <node concept="liA8E" id="7LZDtvgO0Mb" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+              <node concept="3clFbT" id="7LZDtvgO10J" role="37wK5m">
+                <property role="3clFbU" value="true" />
               </node>
             </node>
           </node>
@@ -5101,8 +5658,8 @@
       <node concept="3clFbS" id="3_DFadMGHPZ" role="3clF47">
         <node concept="3clFbF" id="3_DFadMGKDS" role="3cqZAp">
           <node concept="2YIFZM" id="3_DFadMGKFI" role="3clFbG">
-            <ref role="37wK5l" to="pbu6:4_qY3E5KWHU" resolve="reset" />
-            <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+            <ref role="37wK5l" to="pbu6:7LZDtvhyLN0" resolve="reset" />
+            <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
           </node>
         </node>
         <node concept="3cpWs8" id="3_DFadNg3lI" role="3cqZAp">
@@ -5173,8 +5730,8 @@
             </node>
             <node concept="3clFbF" id="3_DFadN8IdD" role="3cqZAp">
               <node concept="2YIFZM" id="3_DFadN8IdE" role="3clFbG">
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                <ref role="37wK5l" to="pbu6:4_qY3E63$MP" resolve="registerLanguage" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyM02" resolve="registerLanguage" />
                 <node concept="37vLTw" id="3_DFadN8Il4" role="37wK5m">
                   <ref role="3cqZAo" node="3_DFadN8HM1" resolve="l" />
                 </node>
@@ -5196,8 +5753,8 @@
           <node concept="3clFbS" id="3_DFadNeq1v" role="2LFqv$">
             <node concept="3clFbF" id="3_DFadNeq1C" role="3cqZAp">
               <node concept="2YIFZM" id="3_DFadNerv1" role="3clFbG">
-                <ref role="37wK5l" to="pbu6:3_DFadNdyhw" resolve="registerIgnoredConcept" />
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyM0q" resolve="registerIgnoredConcept" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 <node concept="2OqwBi" id="3_DFadNe$ez" role="37wK5m">
                   <node concept="2OqwBi" id="3_DFadNeuq9" role="2Oq$k0">
                     <node concept="2GrUjf" id="3_DFadNeuqa" role="2Oq$k0">
@@ -5219,8 +5776,8 @@
             <node concept="2OqwBi" id="18$bUx5_DNO" role="2Oq$k0">
               <node concept="2OqwBi" id="18$bUx5DBh9" role="2Oq$k0">
                 <node concept="2YIFZM" id="18$bUx5_D9F" role="2Oq$k0">
-                  <ref role="37wK5l" to="pbu6:18$bUx5ztdK" resolve="allConceptsStatus" />
-                  <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                  <ref role="37wK5l" to="pbu6:7LZDtvhyLU8" resolve="allConceptsStatus" />
+                  <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 </node>
                 <node concept="3zZkjj" id="18$bUx5DC39" role="2OqNvi">
                   <node concept="1bVj0M" id="18$bUx5DC3b" role="23t8la">
@@ -5230,10 +5787,10 @@
                           <node concept="3fqX7Q" id="18$bUx5DE1n" role="3K4E3e">
                             <node concept="2OqwBi" id="18$bUx5DE1p" role="3fr31v">
                               <node concept="37vLTw" id="18$bUx5DE1q" role="2Oq$k0">
-                                <ref role="3cqZAo" node="18$bUx5DC3d" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817fc" resolve="it" />
                               </node>
                               <node concept="liA8E" id="18$bUx5DE1r" role="2OqNvi">
-                                <ref role="37wK5l" to="pbu6:6SpoPQg9EIA" resolve="isComplete" />
+                                <ref role="37wK5l" to="pbu6:7LZDtvhB4Z1" resolve="isComplete" />
                               </node>
                             </node>
                           </node>
@@ -5249,9 +5806,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="18$bUx5DC3d" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fc" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="18$bUx5DC3e" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fd" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -5289,10 +5846,10 @@
                             <node concept="2OqwBi" id="18$bUx5_ErM" role="2Oq$k0">
                               <node concept="2OqwBi" id="18$bUx5_ErN" role="2Oq$k0">
                                 <node concept="37vLTw" id="18$bUx5_J3X" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="18$bUx5_EmA" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fe" resolve="it" />
                                 </node>
                                 <node concept="liA8E" id="18$bUx5_ErP" role="2OqNvi">
-                                  <ref role="37wK5l" to="pbu6:3_DFadMHbO3" resolve="concept" />
+                                  <ref role="37wK5l" to="pbu6:7LZDtvhB4Yy" resolve="concept" />
                                 </node>
                               </node>
                               <node concept="liA8E" id="18$bUx5_ErQ" role="2OqNvi">
@@ -5332,10 +5889,10 @@
                         </node>
                         <node concept="2OqwBi" id="18$bUx5_ErW" role="37vLTx">
                           <node concept="37vLTw" id="18$bUx5_Jq2" role="2Oq$k0">
-                            <ref role="3cqZAo" node="18$bUx5_EmA" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fe" resolve="it" />
                           </node>
                           <node concept="liA8E" id="18$bUx5_ErY" role="2OqNvi">
-                            <ref role="37wK5l" to="pbu6:3_DFadMPhUx" resolve="status" />
+                            <ref role="37wK5l" to="pbu6:7LZDtvhB4Zx" resolve="status" />
                           </node>
                         </node>
                       </node>
@@ -5346,9 +5903,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="18$bUx5_EmA" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817fe" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="18$bUx5_EmB" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817ff" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -5400,8 +5957,8 @@
         <node concept="3clFbF" id="7sHl0myf4E1" role="3cqZAp">
           <node concept="37vLTI" id="7sHl0myf4II" role="3clFbG">
             <node concept="2YIFZM" id="18$bUx5cO8Y" role="37vLTx">
-              <ref role="37wK5l" to="pbu6:18$bUx5cMhv" resolve="ratio" />
-              <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+              <ref role="37wK5l" to="pbu6:7LZDtvhyLM_" resolve="ratio" />
+              <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             </node>
             <node concept="2OqwBi" id="7sHl0myf4En" role="37vLTJ">
               <node concept="37vLTw" id="2AZbPfMaNtf" role="2Oq$k0">
@@ -5470,7 +6027,7 @@
                     <ref role="2Gs0qQ" node="RaqQlVakRW" resolve="v" />
                   </node>
                   <node concept="liA8E" id="RaqQlVavhF" role="2OqNvi">
-                    <ref role="37wK5l" to="pbu6:RaqQlV6vu8" resolve="result" />
+                    <ref role="37wK5l" to="pbu6:7LZDtvhGetJ" resolve="result" />
                   </node>
                 </node>
               </node>
@@ -5573,11 +6130,11 @@
           </node>
           <node concept="2OqwBi" id="RaqQlVa73t" role="2GsD0m">
             <node concept="2YIFZM" id="RaqQlVa6Qg" role="2Oq$k0">
-              <ref role="37wK5l" to="pbu6:RaqQlVa4FH" resolve="getValueStatistics" />
-              <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+              <ref role="37wK5l" to="pbu6:7LZDtvhyM2E" resolve="getValueStatistics" />
+              <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
             </node>
             <node concept="liA8E" id="RaqQlVakQv" role="2OqNvi">
-              <ref role="37wK5l" to="pbu6:RaqQlVa8fV" resolve="getData" />
+              <ref role="37wK5l" to="pbu6:7LZDtvhF5Hq" resolve="getData" />
             </node>
           </node>
         </node>
@@ -6039,7 +6596,7 @@
                             <node concept="3fqX7Q" id="77QyhEfRbDt" role="3uHU7w">
                               <node concept="2OqwBi" id="77QyhEfRbDv" role="3fr31v">
                                 <node concept="37vLTw" id="77QyhEfRbDw" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4e_7uAswtI0" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fg" resolve="it" />
                                 </node>
                                 <node concept="1mIQ4w" id="77QyhEfRbDx" role="2OqNvi">
                                   <node concept="chp4Y" id="77QyhEfRbDy" role="cj9EA">
@@ -6051,7 +6608,7 @@
                             <node concept="3clFbC" id="4e_7uAswuMb" role="3uHU7B">
                               <node concept="2OqwBi" id="4e_7uAswu5i" role="3uHU7B">
                                 <node concept="37vLTw" id="4e_7uAswtSB" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4e_7uAswtI0" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fg" resolve="it" />
                                 </node>
                                 <node concept="1mfA1w" id="4e_7uAswurt" role="2OqNvi" />
                               </node>
@@ -6060,9 +6617,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="4e_7uAswtI0" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817fg" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="4e_7uAswtI1" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817fh" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -6277,11 +6834,14 @@
                                 <ref role="ehGHo" to="tpce:f_TJgxE" resolve="LinkDeclaration" />
                               </node>
                               <node concept="1PxgMI" id="1yEri41iIyR" role="33vP2m">
+                                <node concept="chp4Y" id="1yEri41iIyX" role="3oSUPX">
+                                  <ref role="cht4Q" to="tpce:f_TJgxE" resolve="LinkDeclaration" />
+                                </node>
                                 <node concept="2EnYce" id="3Q$zA1CFwIR" role="1m5AlR">
                                   <node concept="2OqwBi" id="1yEri41iIyS" role="2Oq$k0">
                                     <node concept="2OqwBi" id="1yEri41iIyT" role="2Oq$k0">
                                       <node concept="37vLTw" id="1yEri41iIyU" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="CrzyxmC2fv" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817fi" resolve="it" />
                                       </node>
                                       <node concept="liA8E" id="1yEri41iIyV" role="2OqNvi">
                                         <ref role="37wK5l" to="mhbf:~SReference.getLink()" resolve="getLink" />
@@ -6298,9 +6858,6 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="chp4Y" id="1yEri41iIyX" role="3oSUPX">
-                                  <ref role="cht4Q" to="tpce:f_TJgxE" resolve="LinkDeclaration" />
-                                </node>
                               </node>
                             </node>
                           </node>
@@ -6363,9 +6920,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="CrzyxmC2fv" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817fi" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="CrzyxmC2fw" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817fj" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -6413,7 +6970,7 @@
                                 <node concept="liA8E" id="5s_Nuat2wec" role="2OqNvi">
                                   <ref role="37wK5l" to="mhbf:~SNode.getProperty(org.jetbrains.mps.openapi.language.SProperty)" resolve="getProperty" />
                                   <node concept="37vLTw" id="5s_Nuat2wnz" role="37wK5m">
-                                    <ref role="3cqZAo" node="5s_NuasXDtV" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817fk" resolve="it" />
                                   </node>
                                 </node>
                               </node>
@@ -6427,7 +6984,7 @@
                               </node>
                               <node concept="2OqwBi" id="5s_Nuat4_NR" role="33vP2m">
                                 <node concept="37vLTw" id="5s_Nuat4_NS" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5s_NuasXDtV" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fk" resolve="it" />
                                 </node>
                                 <node concept="liA8E" id="5s_Nuat4_NT" role="2OqNvi">
                                   <ref role="37wK5l" to="c17a:~SProperty.getType()" resolve="getType" />
@@ -6450,7 +7007,7 @@
                                     <node concept="2EnYce" id="3Q$zA1CF$VR" role="1m5AlR">
                                       <node concept="2OqwBi" id="5s_NuasXDYU" role="2Oq$k0">
                                         <node concept="37vLTw" id="5s_NuasXDGe" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5s_NuasXDtV" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817fk" resolve="it" />
                                         </node>
                                         <node concept="liA8E" id="5s_NuasXEev" role="2OqNvi">
                                           <ref role="37wK5l" to="c17a:~SElement.getSourceNode()" resolve="getSourceNode" />
@@ -6517,9 +7074,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="5s_NuasXDtV" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817fk" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="5s_NuasXDtW" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817fl" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -6559,7 +7116,7 @@
                           <node concept="3fqX7Q" id="4XlPKepcfR3" role="3K4E3e">
                             <node concept="2OqwBi" id="4XlPKepcfR4" role="3fr31v">
                               <node concept="37vLTw" id="4XlPKepcfR5" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4XlPKepcfRb" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817fm" resolve="it" />
                               </node>
                               <node concept="liA8E" id="4XlPKepcfR6" role="2OqNvi">
                                 <ref role="37wK5l" to="pbu6:4XlPKepacYB" resolve="isComplete" />
@@ -6578,9 +7135,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4XlPKepcfRb" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fm" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4XlPKepcfRc" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fn" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -6608,7 +7165,7 @@
                         <node concept="2OqwBi" id="4XlPKepcfRs" role="37vLTx">
                           <node concept="2OqwBi" id="4XlPKepcfRt" role="2Oq$k0">
                             <node concept="37vLTw" id="4XlPKepcfRu" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4XlPKepcfRF" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817fo" resolve="it" />
                             </node>
                             <node concept="liA8E" id="4XlPKepcfRv" role="2OqNvi">
                               <ref role="37wK5l" to="pbu6:4XlPKepacYa" resolve="concept" />
@@ -6638,7 +7195,7 @@
                         </node>
                         <node concept="2OqwBi" id="4XlPKepcfRA" role="37vLTx">
                           <node concept="37vLTw" id="4XlPKepcfRB" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4XlPKepcfRF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fo" resolve="it" />
                           </node>
                           <node concept="liA8E" id="4XlPKepcfRC" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:4XlPKepacZ6" resolve="status" />
@@ -6650,7 +7207,7 @@
                       <node concept="37vLTI" id="3MHhZL0uvZ0" role="3clFbG">
                         <node concept="2OqwBi" id="3MHhZL0uwjd" role="37vLTx">
                           <node concept="37vLTw" id="3MHhZL0uw6w" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4XlPKepcfRF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fo" resolve="it" />
                           </node>
                           <node concept="liA8E" id="3MHhZL0uBU2" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:3MHhZL0uyid" resolve="testCount" />
@@ -6670,7 +7227,7 @@
                       <node concept="37vLTI" id="3MHhZL0uCcu" role="3clFbG">
                         <node concept="2OqwBi" id="3MHhZL0uCcv" role="37vLTx">
                           <node concept="37vLTw" id="3MHhZL0uCcw" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4XlPKepcfRF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fo" resolve="it" />
                           </node>
                           <node concept="liA8E" id="3MHhZL0uCcx" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:7zqxZ9KlDr8" resolve="testVolume" />
@@ -6690,7 +7247,7 @@
                       <node concept="37vLTI" id="3MHhZL0uCdh" role="3clFbG">
                         <node concept="2OqwBi" id="3MHhZL0uCdi" role="37vLTx">
                           <node concept="37vLTw" id="3MHhZL0uCdj" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4XlPKepcfRF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fo" resolve="it" />
                           </node>
                           <node concept="liA8E" id="3MHhZL0uCdk" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:7zqxZ9Kl7HS" resolve="minimumHeterogeneity" />
@@ -6710,7 +7267,7 @@
                       <node concept="37vLTI" id="3MHhZL0uCec" role="3clFbG">
                         <node concept="2OqwBi" id="3MHhZL0uCed" role="37vLTx">
                           <node concept="37vLTw" id="3MHhZL0uCee" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4XlPKepcfRF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fo" resolve="it" />
                           </node>
                           <node concept="liA8E" id="3MHhZL0uCef" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:7zqxZ9KluoX" resolve="maximumHeterogeneity" />
@@ -6732,9 +7289,9 @@
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-                  <node concept="Rh6nW" id="4XlPKepcfRF" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817fo" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4XlPKepcfRG" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817fp" role="1tU5fm" />
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@@ -6885,7 +7442,7 @@
                               </node>
                               <node concept="2OqwBi" id="5DEy7AGcxWM" role="1m5AlR">
                                 <node concept="37vLTw" id="5DEy7AGcxWN" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5DEy7AGcxWS" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fq" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5DEy7AGcxWO" role="2OqNvi">
                                   <ref role="3Tt5mk" to="vs0r:K292flwHwj" resolve="result" />
@@ -6898,17 +7455,17 @@
                           </node>
                           <node concept="liA8E" id="5DEy7AGcxWQ" role="2OqNvi">
                             <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                            <node concept="10M0yZ" id="5DEy7AGcxWR" role="37wK5m">
-                              <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
-                              <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                            <node concept="10M0yZ" id="7LZDtvhXOOG" role="37wK5m">
+                              <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                              <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5DEy7AGcxWS" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fq" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5DEy7AGcxWT" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fr" role="1tU5fm" />
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                   </node>
                 </node>
@@ -6984,6 +7541,7 @@
     <node concept="13i0hz" id="18$bUx5qaUV" role="13h7CS">
       <property role="2Ki8OM" value="false" />
       <property role="TrG5h" value="findAllTestsSuites" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="18$bUx5qbu4" role="1B3o_S" />
       <node concept="A3Dl8" id="18$bUx5qaUX" role="3clF45">
         <node concept="3Tqbb2" id="18$bUx5qaUY" role="A3Ik2">
@@ -7631,6 +8189,7 @@
     <ref role="13h7C2" to="av4b:5IKJrJHPvF0" resolve="TestCoverageAssQuery" />
     <node concept="13i0hz" id="1vo80oO$S9" role="13h7CS">
       <property role="TrG5h" value="shouldAnalyze" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="1vo80oO$Sa" role="1B3o_S" />
       <node concept="10P_77" id="1vo80oOBg3" role="3clF45" />
       <node concept="3clFbS" id="1vo80oO$Sc" role="3clF47">
@@ -7656,6 +8215,7 @@
     </node>
     <node concept="13i0hz" id="1vo80p38XS" role="13h7CS">
       <property role="TrG5h" value="getSpecFor" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="1vo80p38XT" role="1B3o_S" />
       <node concept="3Tqbb2" id="1vo80p39W$" role="3clF45">
         <ref role="ehGHo" to="av4b:1vo80oMkMQ" resolve="MeasureCoverageFor" />
@@ -7682,7 +8242,7 @@
                           <node concept="2OqwBi" id="1vo80p3dJp" role="25KhWn">
                             <node concept="2OqwBi" id="1vo80p3dJq" role="2Oq$k0">
                               <node concept="37vLTw" id="1vo80p3dJr" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1vo80p3dJu" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817fs" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="1vo80p3dJs" role="2OqNvi">
                                 <ref role="3Tt5mk" to="av4b:1vo80oMkMR" resolve="concept" />
@@ -7695,9 +8255,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="1vo80p3dJu" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817fs" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1vo80p3dJv" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ft" role="1tU5fm" />
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@@ -7735,8 +8295,8 @@
       <node concept="3clFbS" id="5IKJrJHP$nt" role="3clF47">
         <node concept="3clFbF" id="5IKJrJHQ1PQ" role="3cqZAp">
           <node concept="2YIFZM" id="5IKJrJHQ1PR" role="3clFbG">
-            <ref role="37wK5l" to="pbu6:4_qY3E5KWHU" resolve="reset" />
-            <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+            <ref role="37wK5l" to="pbu6:7LZDtvhyLN0" resolve="reset" />
+            <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
           </node>
         </node>
         <node concept="2Gpval" id="3TIaSh_ahN3" role="3cqZAp">
@@ -7752,8 +8312,8 @@
           <node concept="3clFbS" id="3TIaSh_ahN9" role="2LFqv$">
             <node concept="3clFbF" id="3TIaSh_afNd" role="3cqZAp">
               <node concept="2YIFZM" id="3TIaSh_agKg" role="3clFbG">
-                <ref role="37wK5l" to="pbu6:3_DFadNdyhw" resolve="registerIgnoredConcept" />
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyM0q" resolve="registerIgnoredConcept" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 <node concept="2OqwBi" id="3TIaSh_aoIe" role="37wK5m">
                   <node concept="2OqwBi" id="3TIaSh_alzA" role="2Oq$k0">
                     <node concept="2GrUjf" id="3TIaSh_aloT" role="2Oq$k0">
@@ -7782,8 +8342,8 @@
           <node concept="3clFbS" id="3L1$CQtAiKJ" role="2LFqv$">
             <node concept="3clFbF" id="3L1$CQtAiKK" role="3cqZAp">
               <node concept="2YIFZM" id="3L1$CQtAkff" role="3clFbG">
-                <ref role="37wK5l" to="pbu6:3L1$CQt_kee" resolve="registerMeasuredConcept" />
-                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                <ref role="37wK5l" to="pbu6:7LZDtvhyM0M" resolve="registerMeasuredConcept" />
+                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                 <node concept="2OqwBi" id="3L1$CQtAkfg" role="37wK5m">
                   <node concept="2OqwBi" id="3L1$CQtAkfh" role="2Oq$k0">
                     <node concept="2GrUjf" id="3L1$CQtAkfi" role="2Oq$k0">
@@ -7860,7 +8420,7 @@
                           <node concept="3fqX7Q" id="1vo80p9of_" role="3uHU7w">
                             <node concept="2OqwBi" id="1vo80p9ofB" role="3fr31v">
                               <node concept="37vLTw" id="1vo80p9ofC" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1vo80oOIsf" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817fu" resolve="it" />
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                               <node concept="1mIQ4w" id="1vo80p9ofD" role="2OqNvi">
                                 <node concept="chp4Y" id="1vo80p9ofE" role="cj9EA">
@@ -7873,7 +8433,7 @@
                             <ref role="37wK5l" node="1vo80oO$S9" resolve="shouldAnalyze" />
                             <node concept="2OqwBi" id="1vo80oOJkF" role="37wK5m">
                               <node concept="37vLTw" id="1vo80oOJ5u" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1vo80oOIsf" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817fu" resolve="it" />
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                               <node concept="2yIwOk" id="1vo80oOJQv" role="2OqNvi" />
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@@ -7881,9 +8441,9 @@
                         </node>
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-                    <node concept="Rh6nW" id="1vo80oOIsf" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fu" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1vo80oOIsg" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fv" role="1tU5fm" />
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@@ -7917,7 +8477,7 @@
                           </node>
                         </node>
                         <node concept="37vLTw" id="5IKJrJIe5TX" role="37vLTx">
-                          <ref role="3cqZAo" node="5IKJrJIe5DG" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817fw" resolve="it" />
                         </node>
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@@ -7935,13 +8495,13 @@
                             </node>
                             <node concept="2OqwBi" id="7fsCTt5VPFk" role="37vLTx">
                               <node concept="liA8E" id="7fsCTt5VPFl" role="2OqNvi">
-                                <ref role="37wK5l" to="pbu6:5DizcGO8Hdr" resolve="getStatus" />
+                                <ref role="37wK5l" to="pbu6:7LZDtvhDKIP" resolve="getStatus" />
                               </node>
                               <node concept="2YIFZM" id="7fsCTt5VPFm" role="2Oq$k0">
-                                <ref role="37wK5l" to="pbu6:5DizcGOb6ar" resolve="getNodeCoverage" />
-                                <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                                <ref role="37wK5l" to="pbu6:7LZDtvhyLVv" resolve="getNodeCoverage" />
+                                <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                                 <node concept="37vLTw" id="7fsCTt5VPFn" role="37wK5m">
-                                  <ref role="3cqZAo" node="5IKJrJIe5DG" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fw" resolve="it" />
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@@ -7956,7 +8516,7 @@
                               <ref role="37wK5l" node="1vo80p38XS" resolve="getSpecFor" />
                               <node concept="2OqwBi" id="1vo80p3kzV" role="37wK5m">
                                 <node concept="37vLTw" id="1vo80p3kjJ" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5IKJrJIe5DG" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fw" resolve="it" />
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                                 <node concept="2yIwOk" id="1vo80p3l3c" role="2OqNvi" />
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@@ -7973,7 +8533,7 @@
                               <ref role="37wK5l" node="1vo80p38XS" resolve="getSpecFor" />
                               <node concept="2OqwBi" id="1vo80p3hHs" role="37wK5m">
                                 <node concept="37vLTw" id="1vo80p3htS" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5IKJrJIe5DG" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fw" resolve="it" />
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                                 <node concept="2yIwOk" id="1vo80p3ic1" role="2OqNvi" />
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@@ -7990,13 +8550,13 @@
                               <node concept="17QB3L" id="1vo80p3oz1" role="1tU5fm" />
                               <node concept="2OqwBi" id="1vo80p3ozD" role="33vP2m">
                                 <node concept="liA8E" id="1vo80p3ozE" role="2OqNvi">
-                                  <ref role="37wK5l" to="pbu6:5DizcGO8Hdr" resolve="getStatus" />
+                                  <ref role="37wK5l" to="pbu6:7LZDtvhDKIP" resolve="getStatus" />
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                                 <node concept="2YIFZM" id="1vo80p3ozF" role="2Oq$k0">
-                                  <ref role="37wK5l" to="pbu6:5DizcGOb6ar" resolve="getNodeCoverage" />
-                                  <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                                  <ref role="37wK5l" to="pbu6:7LZDtvhyLVv" resolve="getNodeCoverage" />
+                                  <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                                   <node concept="37vLTw" id="1vo80p3ozG" role="37wK5m">
-                                    <ref role="3cqZAo" node="5IKJrJIe5DG" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817fw" resolve="it" />
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@@ -8014,9 +8574,9 @@
                                       <ref role="3TsBF5" to="av4b:5IKJrJHP_6n" resolve="comment" />
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-                                  <node concept="10M0yZ" id="1vo80p3_Zr" role="37vLTx">
-                                    <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
-                                    <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                                  <node concept="10M0yZ" id="7LZDtvhXULE" role="37vLTx">
+                                    <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                                    <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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@@ -8027,9 +8587,9 @@
                               </node>
                               <node concept="liA8E" id="1vo80p3qtz" role="2OqNvi">
                                 <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                                <node concept="10M0yZ" id="1vo80p3ydD" role="37wK5m">
-                                  <ref role="3cqZAo" to="pbu6:18$bUx5wdqa" resolve="PARTIAL" />
-                                  <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                                <node concept="10M0yZ" id="7LZDtvhXVG8" role="37wK5m">
+                                  <ref role="3cqZAo" to="pbu6:7LZDtvhKJMq" resolve="PARTIAL" />
+                                  <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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@@ -8062,9 +8622,9 @@
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-                  <node concept="Rh6nW" id="5IKJrJIe5DG" role="1bW2Oz">
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-                    <node concept="2jxLKc" id="5IKJrJIe5DH" role="1tU5fm" />
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@@ -8186,7 +8746,7 @@
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                         <node concept="37vLTw" id="7fsCTt5WvCW" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7fsCTt5WvCY" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817fy" resolve="it" />
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                         <node concept="2qgKlT" id="7fsCTt5WvCX" role="2OqNvi">
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@@ -8194,9 +8754,9 @@
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@@ -8217,13 +8777,13 @@
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                         <node concept="liA8E" id="7fsCTt5Wygh" role="2OqNvi">
-                          <ref role="37wK5l" to="pbu6:5DizcGO8Hdr" resolve="getStatus" />
+                          <ref role="37wK5l" to="pbu6:7LZDtvhDKIP" resolve="getStatus" />
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                         <node concept="2YIFZM" id="7fsCTt5Wygi" role="2Oq$k0">
-                          <ref role="37wK5l" to="pbu6:5DizcGOb6ar" resolve="getNodeCoverage" />
-                          <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                          <ref role="37wK5l" to="pbu6:7LZDtvhyLVv" resolve="getNodeCoverage" />
+                          <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                           <node concept="37vLTw" id="7fsCTt5Wygj" role="37wK5m">
-                            <ref role="3cqZAo" node="7fsCTt5WxnM" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817f$" resolve="it" />
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@@ -8240,9 +8800,9 @@
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-                        <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
+                      <node concept="10M0yZ" id="7LZDtvhXYjt" role="3uHU7w">
+                        <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                        <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
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                       <node concept="37vLTw" id="7fsCTt5W_Ce" role="3uHU7B">
                         <ref role="3cqZAo" node="7fsCTt5Wygf" resolve="status" />
@@ -8250,9 +8810,9 @@
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-                <node concept="Rh6nW" id="7fsCTt5WxnM" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817f$" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7fsCTt5WxnN" role="1tU5fm" />
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@@ -8358,7 +8918,7 @@
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                           <node concept="2OqwBi" id="1gw9pCYp0tr" role="1m5AlR">
                             <node concept="37vLTw" id="1gw9pCYoAwb" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1gw9pCYoAp7" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817fA" resolve="it" />
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                             <node concept="3TrEf2" id="1gw9pCYp0KQ" role="2OqNvi">
                               <ref role="3Tt5mk" to="vs0r:K292flwHwj" resolve="result" />
@@ -8372,9 +8932,9 @@
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-                <node concept="Rh6nW" id="1gw9pCYoAp7" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817fA" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1gw9pCYoAp8" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817fB" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -8511,21 +9071,19 @@
                 </node>
                 <node concept="3clFbS" id="4e_7uAt7r2H" role="1zc67A">
                   <node concept="3clFbF" id="5syY_AKIy1G" role="3cqZAp">
-                    <node concept="37vLTI" id="5syY_AKIyQ9" role="3clFbG">
-                      <node concept="2OqwBi" id="5syY_AKIzfN" role="37vLTx">
-                        <node concept="37vLTw" id="5syY_AKIySH" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4e_7uAt7r2F" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="5syY_AKIzEX" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="5syY_AKIyf2" role="3clFbG">
+                      <node concept="37vLTw" id="5syY_AKIy1E" role="2Oq$k0">
+                        <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5syY_AKIyf2" role="37vLTJ">
-                        <node concept="37vLTw" id="5syY_AKIy1E" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5syY_AKIysE" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgO89w" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="5syY_AKIzfN" role="37wK5m">
+                          <node concept="37vLTw" id="5syY_AKIySH" role="2Oq$k0">
+                            <ref role="3cqZAo" node="4e_7uAt7r2F" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="5syY_AKIzEX" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -8533,66 +9091,62 @@
                   <node concept="3clFbJ" id="4e_7uAt7r2I" role="3cqZAp">
                     <node concept="3clFbS" id="4e_7uAt7r2J" role="3clFbx">
                       <node concept="3clFbF" id="4e_7uAt7r2K" role="3cqZAp">
-                        <node concept="37vLTI" id="4e_7uAt7r2L" role="3clFbG">
-                          <node concept="17R0WA" id="4e_7uAt7r2M" role="37vLTx">
-                            <node concept="2OqwBi" id="4e_7uAt7r2N" role="3uHU7w">
-                              <node concept="13iPFW" id="4e_7uAt7r2O" role="2Oq$k0" />
-                              <node concept="3TrcHB" id="4e_7uAt7r2P" role="2OqNvi">
-                                <ref role="3TsBF5" to="av4b:4e_7uAt7oTi" resolve="errmsg" />
-                              </node>
-                            </node>
-                            <node concept="2OqwBi" id="4e_7uAt7r2Q" role="3uHU7B">
-                              <node concept="37vLTw" id="4e_7uAt7r2R" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4e_7uAt7r2F" resolve="ex" />
+                        <node concept="2OqwBi" id="4e_7uAt7r2T" role="3clFbG">
+                          <node concept="37vLTw" id="4e_7uAt7r2U" role="2Oq$k0">
+                            <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
+                          </node>
+                          <node concept="liA8E" id="7LZDtvgO9gn" role="2OqNvi">
+                            <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                            <node concept="17R0WA" id="4e_7uAt7r2M" role="37wK5m">
+                              <node concept="2OqwBi" id="4e_7uAt7r2N" role="3uHU7w">
+                                <node concept="13iPFW" id="4e_7uAt7r2O" role="2Oq$k0" />
+                                <node concept="3TrcHB" id="4e_7uAt7r2P" role="2OqNvi">
+                                  <ref role="3TsBF5" to="av4b:4e_7uAt7oTi" resolve="errmsg" />
+                                </node>
                               </node>
-                              <node concept="2OwXpG" id="4e_7uAt7r2S" role="2OqNvi">
-                                <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                              <node concept="2OqwBi" id="4e_7uAt7r2Q" role="3uHU7B">
+                                <node concept="37vLTw" id="4e_7uAt7r2R" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="4e_7uAt7r2F" resolve="ex" />
+                                </node>
+                                <node concept="2OwXpG" id="4e_7uAt7r2S" role="2OqNvi">
+                                  <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="2OqwBi" id="4e_7uAt7r2T" role="37vLTJ">
-                            <node concept="37vLTw" id="4e_7uAt7r2U" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                            </node>
-                            <node concept="2OwXpG" id="4e_7uAt7r2V" role="2OqNvi">
-                              <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                            </node>
-                          </node>
                         </node>
                       </node>
                       <node concept="3clFbJ" id="4e_7uAt7r2W" role="3cqZAp">
                         <node concept="3clFbS" id="4e_7uAt7r2X" role="3clFbx">
                           <node concept="3clFbF" id="4e_7uAt7r2Y" role="3cqZAp">
-                            <node concept="37vLTI" id="4e_7uAt7r2Z" role="3clFbG">
-                              <node concept="2OqwBi" id="4e_7uAt7r38" role="37vLTJ">
-                                <node concept="37vLTw" id="4e_7uAt7r39" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                                </node>
-                                <node concept="2OwXpG" id="4e_7uAt7r3a" role="2OqNvi">
-                                  <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                                </node>
+                            <node concept="2OqwBi" id="4e_7uAt7r38" role="3clFbG">
+                              <node concept="37vLTw" id="4e_7uAt7r39" role="2Oq$k0">
+                                <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
                               </node>
-                              <node concept="2ShNRf" id="6C0OSEaIar$" role="37vLTx">
-                                <node concept="1pGfFk" id="6C0OSEaIaYn" role="2ShVmc">
-                                  <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                                  <node concept="2YIFZM" id="4e_7uAt7r30" role="37wK5m">
-                                    <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
-                                    <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
-                                    <node concept="Xl_RD" id="4e_7uAt7r31" role="37wK5m">
-                                      <property role="Xl_RC" value="Expected error: '%s', but was: '%s'" />
-                                    </node>
-                                    <node concept="2OqwBi" id="4e_7uAt7r32" role="37wK5m">
-                                      <node concept="13iPFW" id="4e_7uAt7r33" role="2Oq$k0" />
-                                      <node concept="3TrcHB" id="4e_7uAt7r34" role="2OqNvi">
-                                        <ref role="3TsBF5" to="av4b:4e_7uAt7oTi" resolve="errmsg" />
+                              <node concept="liA8E" id="7LZDtvgOc6H" role="2OqNvi">
+                                <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                                <node concept="2ShNRf" id="6C0OSEaIar$" role="37wK5m">
+                                  <node concept="1pGfFk" id="6C0OSEaIaYn" role="2ShVmc">
+                                    <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                                    <node concept="2YIFZM" id="4e_7uAt7r30" role="37wK5m">
+                                      <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
+                                      <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
+                                      <node concept="Xl_RD" id="4e_7uAt7r31" role="37wK5m">
+                                        <property role="Xl_RC" value="Expected error: '%s', but was: '%s'" />
                                       </node>
-                                    </node>
-                                    <node concept="2OqwBi" id="4e_7uAt7r35" role="37wK5m">
-                                      <node concept="37vLTw" id="4e_7uAt7r36" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="4e_7uAt7r2F" resolve="ex" />
+                                      <node concept="2OqwBi" id="4e_7uAt7r32" role="37wK5m">
+                                        <node concept="13iPFW" id="4e_7uAt7r33" role="2Oq$k0" />
+                                        <node concept="3TrcHB" id="4e_7uAt7r34" role="2OqNvi">
+                                          <ref role="3TsBF5" to="av4b:4e_7uAt7oTi" resolve="errmsg" />
+                                        </node>
                                       </node>
-                                      <node concept="2OwXpG" id="4e_7uAt7r37" role="2OqNvi">
-                                        <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                      <node concept="2OqwBi" id="4e_7uAt7r35" role="37wK5m">
+                                        <node concept="37vLTw" id="4e_7uAt7r36" role="2Oq$k0">
+                                          <ref role="3cqZAo" node="4e_7uAt7r2F" resolve="ex" />
+                                        </node>
+                                        <node concept="2OwXpG" id="4e_7uAt7r37" role="2OqNvi">
+                                          <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                        </node>
                                       </node>
                                     </node>
                                   </node>
@@ -8606,8 +9160,8 @@
                             <node concept="37vLTw" id="4e_7uAt7r3d" role="2Oq$k0">
                               <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
                             </node>
-                            <node concept="2OwXpG" id="4e_7uAt7r3e" role="2OqNvi">
-                              <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                            <node concept="liA8E" id="7LZDtvgObPU" role="2OqNvi">
+                              <ref role="37wK5l" node="ub9nkyPULV" resolve="isOk" />
                             </node>
                           </node>
                         </node>
@@ -8625,16 +9179,14 @@
                     <node concept="9aQIb" id="4e_7uAt7r3k" role="9aQIa">
                       <node concept="3clFbS" id="4e_7uAt7r3l" role="9aQI4">
                         <node concept="3clFbF" id="4e_7uAt7r3m" role="3cqZAp">
-                          <node concept="37vLTI" id="4e_7uAt7r3n" role="3clFbG">
-                            <node concept="3clFbT" id="4e_7uAt7r3o" role="37vLTx">
-                              <property role="3clFbU" value="true" />
+                          <node concept="2OqwBi" id="4e_7uAt7r3p" role="3clFbG">
+                            <node concept="37vLTw" id="4e_7uAt7r3q" role="2Oq$k0">
+                              <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
                             </node>
-                            <node concept="2OqwBi" id="4e_7uAt7r3p" role="37vLTJ">
-                              <node concept="37vLTw" id="4e_7uAt7r3q" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                              </node>
-                              <node concept="2OwXpG" id="4e_7uAt7r3r" role="2OqNvi">
-                                <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                            <node concept="liA8E" id="7LZDtvgOet9" role="2OqNvi">
+                              <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                              <node concept="3clFbT" id="7LZDtvgOeN1" role="37wK5m">
+                                <property role="3clFbU" value="true" />
                               </node>
                             </node>
                           </node>
@@ -8649,7 +9201,7 @@
                   <node concept="3cpWsn" id="5syY_AKIt3m" role="3cpWs9">
                     <property role="TrG5h" value="rat" />
                     <node concept="3uibUv" id="5syY_AKIt3k" role="1tU5fm">
-                      <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+                      <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
                     </node>
                     <node concept="10Nm6u" id="5syY_AKIu6E" role="33vP2m" />
                   </node>
@@ -8675,21 +9227,19 @@
                 <node concept="3clFbJ" id="5syY_AKIuP0" role="3cqZAp">
                   <node concept="3clFbS" id="5syY_AKIuP2" role="3clFbx">
                     <node concept="3clFbF" id="5syY_AKIwaU" role="3cqZAp">
-                      <node concept="37vLTI" id="5syY_AKIxqs" role="3clFbG">
-                        <node concept="2OqwBi" id="5syY_AKIx$G" role="37vLTx">
-                          <node concept="37vLTw" id="5syY_AKIxt0" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5syY_AKIt3m" resolve="rat" />
-                          </node>
-                          <node concept="2OwXpG" id="5syY_AKIxIJ" role="2OqNvi">
-                            <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
-                          </node>
+                      <node concept="2OqwBi" id="5syY_AKIwiX" role="3clFbG">
+                        <node concept="37vLTw" id="5syY_AKIwaS" role="2Oq$k0">
+                          <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="5syY_AKIwiX" role="37vLTJ">
-                          <node concept="37vLTw" id="5syY_AKIwaS" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="5syY_AKIwtd" role="2OqNvi">
-                            <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                        <node concept="liA8E" id="7LZDtvgO3Xs" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                          <node concept="2OqwBi" id="5syY_AKIx$G" role="37wK5m">
+                            <node concept="37vLTw" id="5syY_AKIxt0" role="2Oq$k0">
+                              <ref role="3cqZAo" node="5syY_AKIt3m" resolve="rat" />
+                            </node>
+                            <node concept="liA8E" id="7LZDtvhoRMD" role="2OqNvi">
+                              <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                            </node>
                           </node>
                         </node>
                       </node>
@@ -8703,35 +9253,29 @@
                   </node>
                 </node>
                 <node concept="3clFbF" id="4e_7uAt7r2u" role="3cqZAp">
-                  <node concept="37vLTI" id="4e_7uAt7r2v" role="3clFbG">
-                    <node concept="3clFbT" id="4e_7uAt7r2w" role="37vLTx">
-                      <property role="3clFbU" value="false" />
+                  <node concept="2OqwBi" id="4e_7uAt7r2x" role="3clFbG">
+                    <node concept="37vLTw" id="4e_7uAt7r2y" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
                     </node>
-                    <node concept="2OqwBi" id="4e_7uAt7r2x" role="37vLTJ">
-                      <node concept="37vLTw" id="4e_7uAt7r2y" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                      </node>
-                      <node concept="2OwXpG" id="4e_7uAt7r2z" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                      </node>
+                    <node concept="liA8E" id="7LZDtvgO58H" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                      <node concept="3clFbT" id="7LZDtvgO5tY" role="37wK5m" />
                     </node>
                   </node>
                 </node>
                 <node concept="3clFbF" id="4e_7uAt7r2$" role="3cqZAp">
-                  <node concept="37vLTI" id="4e_7uAt7r2_" role="3clFbG">
-                    <node concept="2OqwBi" id="4e_7uAt7r2B" role="37vLTJ">
-                      <node concept="37vLTw" id="4e_7uAt7r2C" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-                      </node>
-                      <node concept="2OwXpG" id="4e_7uAt7r2D" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                      </node>
-                    </node>
-                    <node concept="2ShNRf" id="6C0OSEaI9GK" role="37vLTx">
-                      <node concept="1pGfFk" id="6C0OSEaIafz" role="2ShVmc">
-                        <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                        <node concept="Xl_RD" id="4e_7uAt7r2A" role="37wK5m">
-                          <property role="Xl_RC" value="no invalid value was detected." />
+                  <node concept="2OqwBi" id="4e_7uAt7r2B" role="3clFbG">
+                    <node concept="37vLTw" id="4e_7uAt7r2C" role="2Oq$k0">
+                      <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
+                    </node>
+                    <node concept="liA8E" id="7LZDtvgO6sO" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                      <node concept="2ShNRf" id="6C0OSEaI9GK" role="37wK5m">
+                        <node concept="1pGfFk" id="6C0OSEaIafz" role="2ShVmc">
+                          <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                          <node concept="Xl_RD" id="4e_7uAt7r2A" role="37wK5m">
+                            <property role="Xl_RC" value="no invalid value was detected." />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -8755,21 +9299,19 @@
           </node>
         </node>
         <node concept="3clFbF" id="4e_7uAt7r3K" role="3cqZAp">
-          <node concept="37vLTI" id="4e_7uAt7r3L" role="3clFbG">
-            <node concept="3cpWsd" id="4e_7uAt7r3M" role="37vLTx">
-              <node concept="37vLTw" id="4e_7uAt7r3N" role="3uHU7w">
-                <ref role="3cqZAo" node="4e_7uAt7r2d" resolve="begin" />
-              </node>
-              <node concept="37vLTw" id="4e_7uAt7r3O" role="3uHU7B">
-                <ref role="3cqZAo" node="4e_7uAt7r3H" resolve="end" />
-              </node>
+          <node concept="2OqwBi" id="4e_7uAt7r3P" role="3clFbG">
+            <node concept="37vLTw" id="4e_7uAt7r3Q" role="2Oq$k0">
+              <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
             </node>
-            <node concept="2OqwBi" id="4e_7uAt7r3P" role="37vLTJ">
-              <node concept="37vLTw" id="4e_7uAt7r3Q" role="2Oq$k0">
-                <ref role="3cqZAo" node="4e_7uAt7r28" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="4e_7uAt7r3R" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+            <node concept="liA8E" id="7LZDtvgOfKb" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGLwA" resolve="setTime" />
+              <node concept="3cpWsd" id="4e_7uAt7r3M" role="37wK5m">
+                <node concept="37vLTw" id="4e_7uAt7r3N" role="3uHU7w">
+                  <ref role="3cqZAo" node="4e_7uAt7r2d" resolve="begin" />
+                </node>
+                <node concept="37vLTw" id="4e_7uAt7r3O" role="3uHU7B">
+                  <ref role="3cqZAo" node="4e_7uAt7r3H" resolve="end" />
+                </node>
               </node>
             </node>
           </node>
@@ -8829,16 +9371,16 @@
                           </node>
                           <node concept="2OqwBi" id="4e_7uAt7r4n" role="3uHU7B">
                             <node concept="37vLTw" id="4e_7uAt7r4o" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4e_7uAt7r4q" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817fC" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="4e_7uAt7r4p" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4e_7uAt7r4q" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fC" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4e_7uAt7r4r" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fD" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -9014,50 +9556,44 @@
             </node>
             <node concept="3clFbS" id="713ZPaW1oEi" role="1zc67A">
               <node concept="3clFbF" id="713ZPaW1oEj" role="3cqZAp">
-                <node concept="37vLTI" id="713ZPaW1oEk" role="3clFbG">
-                  <node concept="3clFbT" id="713ZPaW1oEl" role="37vLTx" />
-                  <node concept="2OqwBi" id="713ZPaW1oEm" role="37vLTJ">
-                    <node concept="37vLTw" id="713ZPaW1oEn" role="2Oq$k0">
-                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="713ZPaW1oEo" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                    </node>
+                <node concept="2OqwBi" id="713ZPaW1oEm" role="3clFbG">
+                  <node concept="37vLTw" id="713ZPaW1oEn" role="2Oq$k0">
+                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
+                  </node>
+                  <node concept="liA8E" id="7LZDtvgHw_f" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                    <node concept="3clFbT" id="7LZDtvgHxYg" role="37wK5m" />
                   </node>
                 </node>
               </node>
               <node concept="3clFbF" id="713ZPaW1oEp" role="3cqZAp">
-                <node concept="37vLTI" id="713ZPaW1oEq" role="3clFbG">
-                  <node concept="Xl_RD" id="713ZPaW1oEr" role="37vLTx">
-                    <property role="Xl_RC" value="&lt;constraint failed&gt;" />
+                <node concept="2OqwBi" id="713ZPaW1oEs" role="3clFbG">
+                  <node concept="37vLTw" id="713ZPaW1oEt" role="2Oq$k0">
+                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                   </node>
-                  <node concept="2OqwBi" id="713ZPaW1oEs" role="37vLTJ">
-                    <node concept="37vLTw" id="713ZPaW1oEt" role="2Oq$k0">
-                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="713ZPaW1oEu" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                  <node concept="liA8E" id="7LZDtvgHzI5" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                    <node concept="Xl_RD" id="713ZPaW1oEr" role="37wK5m">
+                      <property role="Xl_RC" value="&lt;constraint failed&gt;" />
                     </node>
                   </node>
                 </node>
               </node>
               <node concept="3clFbF" id="713ZPaW1oEv" role="3cqZAp">
-                <node concept="37vLTI" id="713ZPaW1oEw" role="3clFbG">
-                  <node concept="2OqwBi" id="713ZPaW1oEC" role="37vLTJ">
-                    <node concept="37vLTw" id="713ZPaW1oED" role="2Oq$k0">
-                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="713ZPaW1oEE" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                    </node>
+                <node concept="2OqwBi" id="713ZPaW1oEC" role="3clFbG">
+                  <node concept="37vLTw" id="713ZPaW1oED" role="2Oq$k0">
+                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                   </node>
-                  <node concept="BsUDl" id="3YhAT14Q6nB" role="37vLTx">
-                    <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                    <node concept="Xl_RD" id="3YhAT14Qi$G" role="37wK5m">
-                      <property role="Xl_RC" value="constraint failed" />
-                    </node>
-                    <node concept="37vLTw" id="3YhAT14Qi5B" role="37wK5m">
-                      <ref role="3cqZAo" node="713ZPaW1oEg" resolve="ex" />
+                  <node concept="liA8E" id="7LZDtvgH$Uy" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                    <node concept="BsUDl" id="3YhAT14Q6nB" role="37wK5m">
+                      <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                      <node concept="Xl_RD" id="3YhAT14Qi$G" role="37wK5m">
+                        <property role="Xl_RC" value="constraint failed" />
+                      </node>
+                      <node concept="37vLTw" id="3YhAT14Qi5B" role="37wK5m">
+                        <ref role="3cqZAo" node="713ZPaW1oEg" resolve="ex" />
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -9076,50 +9612,44 @@
             </node>
             <node concept="3clFbS" id="713ZPaW1oEQ" role="1zc67A">
               <node concept="3clFbF" id="713ZPaW1oER" role="3cqZAp">
-                <node concept="37vLTI" id="713ZPaW1oES" role="3clFbG">
-                  <node concept="3clFbT" id="713ZPaW1oET" role="37vLTx" />
-                  <node concept="2OqwBi" id="713ZPaW1oEU" role="37vLTJ">
-                    <node concept="37vLTw" id="713ZPaW1oEV" role="2Oq$k0">
-                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="713ZPaW1oEW" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                    </node>
+                <node concept="2OqwBi" id="713ZPaW1oEU" role="3clFbG">
+                  <node concept="37vLTw" id="713ZPaW1oEV" role="2Oq$k0">
+                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
+                  </node>
+                  <node concept="liA8E" id="7LZDtvgHBaz" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                    <node concept="3clFbT" id="7LZDtvgHB$J" role="37wK5m" />
                   </node>
                 </node>
               </node>
               <node concept="3clFbF" id="713ZPaW1oEX" role="3cqZAp">
-                <node concept="37vLTI" id="713ZPaW1oEY" role="3clFbG">
-                  <node concept="Xl_RD" id="713ZPaW1oEZ" role="37vLTx">
-                    <property role="Xl_RC" value="invalid value&gt;" />
+                <node concept="2OqwBi" id="713ZPaW1oF0" role="3clFbG">
+                  <node concept="37vLTw" id="713ZPaW1oF1" role="2Oq$k0">
+                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                   </node>
-                  <node concept="2OqwBi" id="713ZPaW1oF0" role="37vLTJ">
-                    <node concept="37vLTw" id="713ZPaW1oF1" role="2Oq$k0">
-                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="713ZPaW1oF2" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                  <node concept="liA8E" id="7LZDtvgHD0t" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                    <node concept="Xl_RD" id="713ZPaW1oEZ" role="37wK5m">
+                      <property role="Xl_RC" value="invalid value&gt;" />
                     </node>
                   </node>
                 </node>
               </node>
               <node concept="3clFbF" id="713ZPaW1oF3" role="3cqZAp">
-                <node concept="37vLTI" id="713ZPaW1oF4" role="3clFbG">
-                  <node concept="2OqwBi" id="713ZPaW1oFc" role="37vLTJ">
-                    <node concept="37vLTw" id="713ZPaW1oFd" role="2Oq$k0">
-                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="713ZPaW1oFe" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                    </node>
+                <node concept="2OqwBi" id="713ZPaW1oFc" role="3clFbG">
+                  <node concept="37vLTw" id="713ZPaW1oFd" role="2Oq$k0">
+                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                   </node>
-                  <node concept="BsUDl" id="3YhAT14QjgE" role="37vLTx">
-                    <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                    <node concept="Xl_RD" id="3YhAT14Qjpy" role="37wK5m">
-                      <property role="Xl_RC" value="invalid value" />
-                    </node>
-                    <node concept="37vLTw" id="3YhAT14QjGp" role="37wK5m">
-                      <ref role="3cqZAo" node="713ZPaW1oEO" resolve="ex" />
+                  <node concept="liA8E" id="7LZDtvgHFoa" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                    <node concept="BsUDl" id="3YhAT14QjgE" role="37wK5m">
+                      <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                      <node concept="Xl_RD" id="3YhAT14Qjpy" role="37wK5m">
+                        <property role="Xl_RC" value="invalid value" />
+                      </node>
+                      <node concept="37vLTw" id="3YhAT14QjGp" role="37wK5m">
+                        <ref role="3cqZAo" node="713ZPaW1oEO" resolve="ex" />
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -9146,7 +9676,7 @@
               <node concept="3cpWsn" id="2kg0xI3riWq" role="3cpWs9">
                 <property role="TrG5h" value="vat" />
                 <node concept="3uibUv" id="2kg0xI3riWl" role="1tU5fm">
-                  <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+                  <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
                 </node>
                 <node concept="BsUDl" id="2kg0xI3riWr" role="33vP2m">
                   <ref role="37wK5l" node="7obiejCzVLz" resolve="evalWithTraceAndEnv" />
@@ -9169,8 +9699,8 @@
                   <node concept="37vLTw" id="2kg0xI3riWv" role="2Oq$k0">
                     <ref role="3cqZAo" node="2kg0xI3riWq" resolve="vat" />
                   </node>
-                  <node concept="2OwXpG" id="4HGbj9Sv7xa" role="2OqNvi">
-                    <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                  <node concept="liA8E" id="7LZDtvhorwS" role="2OqNvi">
+                    <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                   </node>
                 </node>
               </node>
@@ -9298,76 +9828,68 @@
               </node>
             </node>
             <node concept="3clFbF" id="2kg0xI3rh6v" role="3cqZAp">
-              <node concept="37vLTI" id="2kg0xI3riMv" role="3clFbG">
-                <node concept="2OqwBi" id="2kg0xI3rjEG" role="37vLTx">
-                  <node concept="37vLTw" id="2kg0xI3rjz1" role="2Oq$k0">
-                    <ref role="3cqZAo" node="2kg0xI3riWq" resolve="vat" />
-                  </node>
-                  <node concept="2OwXpG" id="2kg0xI3rjTt" role="2OqNvi">
-                    <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
-                  </node>
+              <node concept="2OqwBi" id="2kg0xI3rhnw" role="3clFbG">
+                <node concept="37vLTw" id="2kg0xI3rh6t" role="2Oq$k0">
+                  <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                 </node>
-                <node concept="2OqwBi" id="2kg0xI3rhnw" role="37vLTJ">
-                  <node concept="37vLTw" id="2kg0xI3rh6t" role="2Oq$k0">
-                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                  </node>
-                  <node concept="2OwXpG" id="2kg0xI3rhE3" role="2OqNvi">
-                    <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                <node concept="liA8E" id="7LZDtvgHnvz" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                  <node concept="2OqwBi" id="2kg0xI3rjEG" role="37wK5m">
+                    <node concept="37vLTw" id="2kg0xI3rjz1" role="2Oq$k0">
+                      <ref role="3cqZAo" node="2kg0xI3riWq" resolve="vat" />
+                    </node>
+                    <node concept="liA8E" id="7LZDtvhoHM2" role="2OqNvi">
+                      <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                    </node>
                   </node>
                 </node>
               </node>
             </node>
             <node concept="3clFbF" id="713ZPaW23nA" role="3cqZAp">
-              <node concept="37vLTI" id="713ZPaW24ww" role="3clFbG">
-                <node concept="1eOMI4" id="713ZPaW25$b" role="37vLTx">
-                  <node concept="3clFbC" id="713ZPaW25$c" role="1eOMHV">
+              <node concept="2OqwBi" id="7LZDtvgHoK5" role="3clFbG">
+                <node concept="37vLTw" id="713ZPaW23n$" role="2Oq$k0">
+                  <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
+                </node>
+                <node concept="liA8E" id="7LZDtvgHpdY" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                  <node concept="3clFbC" id="713ZPaW25$c" role="37wK5m">
                     <node concept="10Nm6u" id="713ZPaW25$d" role="3uHU7w" />
                     <node concept="37vLTw" id="713ZPaW25$e" role="3uHU7B">
                       <ref role="3cqZAo" node="713ZPaW1RFG" resolve="error" />
                     </node>
                   </node>
                 </node>
-                <node concept="2OqwBi" id="713ZPaW23Fb" role="37vLTJ">
-                  <node concept="37vLTw" id="713ZPaW23n$" role="2Oq$k0">
-                    <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                  </node>
-                  <node concept="2OwXpG" id="713ZPaW23YP" role="2OqNvi">
-                    <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                  </node>
-                </node>
               </node>
             </node>
             <node concept="3clFbJ" id="713ZPaW267W" role="3cqZAp">
               <node concept="3clFbS" id="713ZPaW267Y" role="3clFbx">
                 <node concept="3clFbF" id="713ZPaW1oDU" role="3cqZAp">
-                  <node concept="37vLTI" id="713ZPaW1oDV" role="3clFbG">
-                    <node concept="2OqwBi" id="713ZPaW1oE3" role="37vLTJ">
-                      <node concept="37vLTw" id="713ZPaW1oE4" role="2Oq$k0">
-                        <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                      </node>
-                      <node concept="2OwXpG" id="713ZPaW1oE5" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                      </node>
+                  <node concept="2OqwBi" id="713ZPaW1oE3" role="3clFbG">
+                    <node concept="37vLTw" id="713ZPaW1oE4" role="2Oq$k0">
+                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                     </node>
-                    <node concept="2ShNRf" id="6C0OSEaHaYi" role="37vLTx">
-                      <node concept="1pGfFk" id="6C0OSEaHaYj" role="2ShVmc">
-                        <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                        <node concept="3cpWs3" id="6C0OSEaHaYk" role="37wK5m">
-                          <node concept="37vLTw" id="6C0OSEaHaYl" role="3uHU7w">
-                            <ref role="3cqZAo" node="713ZPaW1oDo" resolve="r" />
-                          </node>
-                          <node concept="3cpWs3" id="6C0OSEaHaYm" role="3uHU7B">
-                            <node concept="3cpWs3" id="6C0OSEaHaYn" role="3uHU7B">
-                              <node concept="Xl_RD" id="6C0OSEaHaYo" role="3uHU7B">
-                                <property role="Xl_RC" value="Test Failed. " />
+                    <node concept="liA8E" id="7LZDtvgHs9I" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                      <node concept="2ShNRf" id="6C0OSEaHaYi" role="37wK5m">
+                        <node concept="1pGfFk" id="6C0OSEaHaYj" role="2ShVmc">
+                          <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                          <node concept="3cpWs3" id="6C0OSEaHaYk" role="37wK5m">
+                            <node concept="37vLTw" id="6C0OSEaHaYl" role="3uHU7w">
+                              <ref role="3cqZAo" node="713ZPaW1oDo" resolve="r" />
+                            </node>
+                            <node concept="3cpWs3" id="6C0OSEaHaYm" role="3uHU7B">
+                              <node concept="3cpWs3" id="6C0OSEaHaYn" role="3uHU7B">
+                                <node concept="Xl_RD" id="6C0OSEaHaYo" role="3uHU7B">
+                                  <property role="Xl_RC" value="Test Failed. " />
+                                </node>
+                                <node concept="37vLTw" id="6C0OSEaHaYp" role="3uHU7w">
+                                  <ref role="3cqZAo" node="713ZPaW1RFG" resolve="error" />
+                                </node>
                               </node>
-                              <node concept="37vLTw" id="6C0OSEaHaYp" role="3uHU7w">
-                                <ref role="3cqZAo" node="713ZPaW1RFG" resolve="error" />
+                              <node concept="Xl_RD" id="6C0OSEaHaYq" role="3uHU7w">
+                                <property role="Xl_RC" value=", but was: " />
                               </node>
                             </node>
-                            <node concept="Xl_RD" id="6C0OSEaHaYq" role="3uHU7w">
-                              <property role="Xl_RC" value=", but was: " />
-                            </node>
                           </node>
                         </node>
                       </node>
@@ -9375,16 +9897,14 @@
                   </node>
                 </node>
                 <node concept="3clFbF" id="713ZPaW1oE6" role="3cqZAp">
-                  <node concept="37vLTI" id="713ZPaW1oE7" role="3clFbG">
-                    <node concept="37vLTw" id="713ZPaW2awq" role="37vLTx">
-                      <ref role="3cqZAo" node="713ZPaW1oDo" resolve="r" />
+                  <node concept="2OqwBi" id="7LZDtvgHukE" role="3clFbG">
+                    <node concept="37vLTw" id="713ZPaW1oEa" role="2Oq$k0">
+                      <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                     </node>
-                    <node concept="2OqwBi" id="713ZPaW1oE9" role="37vLTJ">
-                      <node concept="37vLTw" id="713ZPaW1oEa" role="2Oq$k0">
-                        <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-                      </node>
-                      <node concept="2OwXpG" id="713ZPaW1oEb" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                    <node concept="liA8E" id="7LZDtvgHvwo" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                      <node concept="37vLTw" id="7LZDtvgHvHD" role="37wK5m">
+                        <ref role="3cqZAo" node="713ZPaW1oDo" resolve="r" />
                       </node>
                     </node>
                   </node>
@@ -9395,8 +9915,8 @@
                   <node concept="37vLTw" id="713ZPaW26Db" role="2Oq$k0">
                     <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
                   </node>
-                  <node concept="2OwXpG" id="713ZPaW273L" role="2OqNvi">
-                    <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                  <node concept="liA8E" id="7LZDtvgHrFK" role="2OqNvi">
+                    <ref role="37wK5l" node="ub9nkyPULV" resolve="isOk" />
                   </node>
                 </node>
               </node>
@@ -9414,21 +9934,19 @@
           </node>
         </node>
         <node concept="3clFbF" id="713ZPaW1oFG" role="3cqZAp">
-          <node concept="37vLTI" id="713ZPaW1oFH" role="3clFbG">
-            <node concept="3cpWsd" id="713ZPaW1oFI" role="37vLTx">
-              <node concept="37vLTw" id="713ZPaW1oFJ" role="3uHU7w">
-                <ref role="3cqZAo" node="713ZPaW1oDc" resolve="begin" />
-              </node>
-              <node concept="37vLTw" id="713ZPaW1oFK" role="3uHU7B">
-                <ref role="3cqZAo" node="713ZPaW1oFD" resolve="end" />
-              </node>
+          <node concept="2OqwBi" id="713ZPaW1oFL" role="3clFbG">
+            <node concept="37vLTw" id="713ZPaW1oFM" role="2Oq$k0">
+              <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
             </node>
-            <node concept="2OqwBi" id="713ZPaW1oFL" role="37vLTJ">
-              <node concept="37vLTw" id="713ZPaW1oFM" role="2Oq$k0">
-                <ref role="3cqZAo" node="713ZPaW1oD7" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="713ZPaW1oFN" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+            <node concept="liA8E" id="7LZDtvgHGyz" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGLwA" resolve="setTime" />
+              <node concept="3cpWsd" id="713ZPaW1oFI" role="37wK5m">
+                <node concept="37vLTw" id="713ZPaW1oFJ" role="3uHU7w">
+                  <ref role="3cqZAo" node="713ZPaW1oDc" resolve="begin" />
+                </node>
+                <node concept="37vLTw" id="713ZPaW1oFK" role="3uHU7B">
+                  <ref role="3cqZAo" node="713ZPaW1oFD" resolve="end" />
+                </node>
               </node>
             </node>
           </node>
@@ -9970,7 +10488,7 @@
                             <node concept="2OqwBi" id="5AG05XYAQ8N" role="3clFbG">
                               <node concept="2OqwBi" id="5AG05XYAMMt" role="2Oq$k0">
                                 <node concept="37vLTw" id="5AG05XYALhK" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5AG05XYAJ7V" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fE" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5AG05XYAP0s" role="2OqNvi">
                                   <ref role="3Tt5mk" to="av4b:1bwJEEf2HGQ" resolve="value" />
@@ -9980,9 +10498,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="5AG05XYAJ7V" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817fE" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="5AG05XYAJ7W" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817fF" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -10220,16 +10738,14 @@
                   </node>
                 </node>
                 <node concept="3clFbF" id="7FZzGJZYena" role="3cqZAp">
-                  <node concept="37vLTI" id="7FZzGJZYf6t" role="3clFbG">
-                    <node concept="37vLTw" id="7FZzGJZYfbb" role="37vLTx">
-                      <ref role="3cqZAo" node="4945UtSiwdl" resolve="actualVal" />
+                  <node concept="2OqwBi" id="7FZzGJZYeD1" role="3clFbG">
+                    <node concept="37vLTw" id="7FZzGJZYen8" role="2Oq$k0">
+                      <ref role="3cqZAo" node="7FZzGJZYcKU" resolve="rr" />
                     </node>
-                    <node concept="2OqwBi" id="7FZzGJZYeD1" role="37vLTJ">
-                      <node concept="37vLTw" id="7FZzGJZYen8" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7FZzGJZYcKU" resolve="rr" />
-                      </node>
-                      <node concept="2OwXpG" id="7FZzGJZYeTa" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                    <node concept="liA8E" id="7LZDtvgL_rL" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                      <node concept="37vLTw" id="7LZDtvgLASP" role="37wK5m">
+                        <ref role="3cqZAo" node="4945UtSiwdl" resolve="actualVal" />
                       </node>
                     </node>
                   </node>
@@ -10335,8 +10851,8 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="2OwXpG" id="7gBavbyGs$a" role="2OqNvi">
-                    <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                  <node concept="liA8E" id="7LZDtvhoBCr" role="2OqNvi">
+                    <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
                   </node>
                 </node>
               </node>
@@ -10439,16 +10955,14 @@
                     </node>
                   </node>
                   <node concept="3clFbF" id="7FZzGJZYb5p" role="3cqZAp">
-                    <node concept="37vLTI" id="7FZzGJZYbP_" role="3clFbG">
-                      <node concept="37vLTw" id="7FZzGJZYbT7" role="37vLTx">
-                        <ref role="3cqZAo" node="4945UtSiwdl" resolve="actualVal" />
+                    <node concept="2OqwBi" id="7FZzGJZYbng" role="3clFbG">
+                      <node concept="37vLTw" id="7FZzGJZYb5n" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7FZzGJZY8sn" resolve="r" />
                       </node>
-                      <node concept="2OqwBi" id="7FZzGJZYbng" role="37vLTJ">
-                        <node concept="37vLTw" id="7FZzGJZYb5n" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7FZzGJZY8sn" resolve="r" />
-                        </node>
-                        <node concept="2OwXpG" id="7FZzGJZYbBC" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgLENN" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="37vLTw" id="7LZDtvgLGlG" role="37wK5m">
+                          <ref role="3cqZAo" node="4945UtSiwdl" resolve="actualVal" />
                         </node>
                       </node>
                     </node>
@@ -10828,7 +11342,7 @@
               <node concept="3cpWsn" id="1vJWYav9Obk" role="3cpWs9">
                 <property role="TrG5h" value="vr" />
                 <node concept="3uibUv" id="1vJWYavb1Op" role="1tU5fm">
-                  <ref role="3uigEE" node="ub9nkyOIeW" resolve="EvalResult" />
+                  <ref role="3uigEE" node="7LZDtvgGNLS" resolve="IEvalResult" />
                 </node>
               </node>
             </node>
@@ -10850,20 +11364,18 @@
                   </node>
                 </node>
                 <node concept="3clFbF" id="1vJWYav9Pbv" role="3cqZAp">
-                  <node concept="37vLTI" id="1vJWYav9PZX" role="3clFbG">
-                    <node concept="2OqwBi" id="1vJWYav9Pj_" role="37vLTJ">
-                      <node concept="37vLTw" id="1vJWYav9Pbt" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1vJWYav9Obk" resolve="vr" />
-                      </node>
-                      <node concept="2OwXpG" id="1vJWYav9PyI" role="2OqNvi">
-                        <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                      </node>
+                  <node concept="2OqwBi" id="1vJWYav9Pj_" role="3clFbG">
+                    <node concept="37vLTw" id="1vJWYav9Pbt" role="2Oq$k0">
+                      <ref role="3cqZAo" node="1vJWYav9Obk" resolve="vr" />
                     </node>
-                    <node concept="2ShNRf" id="6C0OSEaIsGF" role="37vLTx">
-                      <node concept="1pGfFk" id="6C0OSEaItcV" role="2ShVmc">
-                        <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                        <node concept="Xl_RD" id="1vJWYav9Q11" role="37wK5m">
-                          <property role="Xl_RC" value="not executed" />
+                    <node concept="liA8E" id="7LZDtvgOm0g" role="2OqNvi">
+                      <ref role="37wK5l" node="7LZDtvgGPo_" resolve="setErrorMessage" />
+                      <node concept="2ShNRf" id="6C0OSEaIsGF" role="37wK5m">
+                        <node concept="1pGfFk" id="6C0OSEaItcV" role="2ShVmc">
+                          <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                          <node concept="Xl_RD" id="1vJWYav9Q11" role="37wK5m">
+                            <property role="Xl_RC" value="not executed" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -10927,7 +11439,7 @@
                           <ref role="3cqZAo" node="1vJWYav9Obk" resolve="vr" />
                         </node>
                         <node concept="liA8E" id="1vJWYav9XoI" role="2OqNvi">
-                          <ref role="37wK5l" node="ub9nkyPULV" resolve="isOk" />
+                          <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
                         </node>
                       </node>
                     </node>
@@ -10971,20 +11483,18 @@
         <node concept="3clFbJ" id="1vJWYavcr0G" role="3cqZAp">
           <node concept="3clFbS" id="1vJWYavcr0I" role="3clFbx">
             <node concept="3clFbF" id="1vJWYavcrAw" role="3cqZAp">
-              <node concept="37vLTI" id="1vJWYavcsxg" role="3clFbG">
-                <node concept="2OqwBi" id="1vJWYavcs0e" role="37vLTJ">
-                  <node concept="37vLTw" id="1vJWYavcrAu" role="2Oq$k0">
-                    <ref role="3cqZAo" node="1vJWYav9YjU" resolve="overallRes" />
-                  </node>
-                  <node concept="2OwXpG" id="1vJWYavcs83" role="2OqNvi">
-                    <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="6C0OSEaIs7_" role="37vLTx">
-                  <node concept="1pGfFk" id="6C0OSEaIsBP" role="2ShVmc">
-                    <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                    <node concept="Xl_RD" id="1vJWYavcsym" role="37wK5m">
-                      <property role="Xl_RC" value="at least one vector failed" />
+              <node concept="2OqwBi" id="1vJWYavcs0e" role="3clFbG">
+                <node concept="37vLTw" id="1vJWYavcrAu" role="2Oq$k0">
+                  <ref role="3cqZAo" node="1vJWYav9YjU" resolve="overallRes" />
+                </node>
+                <node concept="liA8E" id="7LZDtvgOmXe" role="2OqNvi">
+                  <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                  <node concept="2ShNRf" id="6C0OSEaIs7_" role="37wK5m">
+                    <node concept="1pGfFk" id="6C0OSEaIsBP" role="2ShVmc">
+                      <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                      <node concept="Xl_RD" id="1vJWYavcsym" role="37wK5m">
+                        <property role="Xl_RC" value="at least one vector failed" />
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -11432,7 +11942,7 @@
                       <node concept="2OqwBi" id="3_xsRJ4LLL1" role="3clFbG">
                         <node concept="2OqwBi" id="3_xsRJ4LL7e" role="2Oq$k0">
                           <node concept="37vLTw" id="3_xsRJ4LKTE" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3_xsRJ4LKTu" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fG" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="3_xsRJ4LLhk" role="2OqNvi">
                             <ref role="3TsBF5" to="av4b:3_xsRJ4sa6R" resolve="internalUniqueID" />
@@ -11447,9 +11957,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3_xsRJ4LKTu" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817fG" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3_xsRJ4LKTv" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817fH" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -11672,15 +12182,15 @@
                               <node concept="liA8E" id="7WSgHRL9pxD" role="2OqNvi">
                                 <ref role="37wK5l" to="oq0c:7WSgHRKY1NI" resolve="appliesTo" />
                                 <node concept="37vLTw" id="7WSgHRL9pxE" role="37wK5m">
-                                  <ref role="3cqZAo" node="7WSgHRL9pxF" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817fI" resolve="it" />
                                 </node>
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="7WSgHRL9pxF" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817fI" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="7WSgHRL9pxG" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817fJ" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -11951,7 +12461,7 @@
                       <node concept="2OqwBi" id="1qjbRymX3fq" role="37wK5m">
                         <node concept="2OqwBi" id="1qjbRymX2Ld" role="2Oq$k0">
                           <node concept="37vLTw" id="1qjbRymX2C7" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1qjbRymX2yF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fK" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="1qjbRymX2W3" role="2OqNvi">
                             <ref role="3Tt5mk" to="av4b:1qjbRymSXmZ" resolve="newNode" />
@@ -11967,15 +12477,15 @@
                   <node concept="3clFbF" id="1qjbRymXP7x" role="3cqZAp">
                     <node concept="2OqwBi" id="1qjbRymXPgN" role="3clFbG">
                       <node concept="37vLTw" id="1qjbRymXP7v" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1qjbRymX2yF" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817fK" resolve="it" />
                       </node>
                       <node concept="3YRAZt" id="1qjbRymXPAc" role="2OqNvi" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1qjbRymX2yF" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817fK" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1qjbRymX2yG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817fL" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -12702,6 +13212,7 @@
     <ref role="13h7C2" to="av4b:7aipPVpH1LO" resolve="ReportTestItem" />
     <node concept="13i0hz" id="7aipPVpHkbU" role="13h7CS">
       <property role="TrG5h" value="isStructurallyValid" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="7aipPVpHkbV" role="1B3o_S" />
       <node concept="10P_77" id="7aipPVpHkbW" role="3clF45" />
       <node concept="3clFbS" id="7aipPVpHkbX" role="3clF47">
@@ -12736,16 +13247,16 @@
                         </node>
                         <node concept="2OqwBi" id="7aipPVpHkcG" role="3uHU7B">
                           <node concept="37vLTw" id="7aipPVpHkcH" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7aipPVpHkcJ" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fM" resolve="it" />
                           </node>
                           <node concept="2yIwOk" id="7aipPVpHkcI" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7aipPVpHkcJ" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817fM" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7aipPVpHkcK" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817fN" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -12803,70 +13314,64 @@
                 </node>
                 <node concept="3clFbS" id="7aipPVpHb_2" role="1zc67A">
                   <node concept="3clFbF" id="7aipPVpHb_3" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_4" role="3clFbG">
-                      <node concept="3clFbT" id="7aipPVpHb_5" role="37vLTx" />
-                      <node concept="2OqwBi" id="7aipPVpHb_6" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_7" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_8" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHb_6" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_7" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgM1Ks" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgM3JA" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHb_9" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_a" role="3clFbG">
-                      <node concept="Xl_RD" id="7aipPVpHb_b" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;invalid value detected&gt;" />
+                    <node concept="2OqwBi" id="7aipPVpHb_c" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_d" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHb_c" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_d" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_e" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgM7Yn" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="7aipPVpHb_b" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;invalid value detected&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHb_f" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_g" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHb_o" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_p" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_q" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
-                      </node>
-                      <node concept="2ShNRf" id="6C0OSEaIcJX" role="37vLTx">
-                        <node concept="1pGfFk" id="6C0OSEaIdoM" role="2ShVmc">
-                          <ref role="37wK5l" to="oq0c:6C0OSEaHpjh" resolve="MessageValue" />
-                          <node concept="3cpWs3" id="7aipPVpHb_h" role="37wK5m">
-                            <node concept="Xl_RD" id="7aipPVpHb_i" role="3uHU7w">
-                              <property role="Xl_RC" value="&gt;" />
-                            </node>
-                            <node concept="3cpWs3" id="7aipPVpHb_j" role="3uHU7B">
-                              <node concept="Xl_RD" id="7aipPVpHb_k" role="3uHU7B">
-                                <property role="Xl_RC" value="invalid value detected &lt;" />
+                    <node concept="2OqwBi" id="7aipPVpHb_o" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_p" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgMdm6" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="2ShNRf" id="6C0OSEaIcJX" role="37wK5m">
+                          <node concept="1pGfFk" id="6C0OSEaIdoM" role="2ShVmc">
+                            <ref role="37wK5l" to="oq0c:6C0OSEaHpjh" resolve="MessageValue" />
+                            <node concept="3cpWs3" id="7aipPVpHb_h" role="37wK5m">
+                              <node concept="Xl_RD" id="7aipPVpHb_i" role="3uHU7w">
+                                <property role="Xl_RC" value="&gt;" />
                               </node>
-                              <node concept="2OqwBi" id="7aipPVpHb_l" role="3uHU7w">
-                                <node concept="37vLTw" id="7aipPVpHb_m" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7aipPVpHb_0" resolve="ex" />
+                              <node concept="3cpWs3" id="7aipPVpHb_j" role="3uHU7B">
+                                <node concept="Xl_RD" id="7aipPVpHb_k" role="3uHU7B">
+                                  <property role="Xl_RC" value="invalid value detected &lt;" />
                                 </node>
-                                <node concept="2OwXpG" id="7aipPVpHb_n" role="2OqNvi">
-                                  <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                <node concept="2OqwBi" id="7aipPVpHb_l" role="3uHU7w">
+                                  <node concept="37vLTw" id="7aipPVpHb_m" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="7aipPVpHb_0" resolve="ex" />
+                                  </node>
+                                  <node concept="2OwXpG" id="7aipPVpHb_n" role="2OqNvi">
+                                    <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                  </node>
                                 </node>
                               </node>
                             </node>
-                          </node>
-                          <node concept="2OqwBi" id="6C0OSEaIeDV" role="37wK5m">
-                            <node concept="37vLTw" id="6C0OSEaIeei" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7aipPVpHb_0" resolve="ex" />
-                            </node>
-                            <node concept="2OwXpG" id="2LEfNl_kuVe" role="2OqNvi">
-                              <ref role="2Oxat5" to="2ahs:2LEfNl_3lOx" resolve="node2" />
+                            <node concept="2OqwBi" id="6C0OSEaIeDV" role="37wK5m">
+                              <node concept="37vLTw" id="6C0OSEaIeei" role="2Oq$k0">
+                                <ref role="3cqZAo" node="7aipPVpHb_0" resolve="ex" />
+                              </node>
+                              <node concept="2OwXpG" id="2LEfNl_kuVe" role="2OqNvi">
+                                <ref role="2Oxat5" to="2ahs:2LEfNl_3lOx" resolve="node2" />
+                              </node>
                             </node>
                           </node>
                         </node>
@@ -12874,21 +13379,19 @@
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHb_r" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_s" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHb_t" role="37vLTx">
-                        <node concept="37vLTw" id="7aipPVpHb_u" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHb_0" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_v" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHb_w" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_x" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHb_w" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_x" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_y" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgMgYP" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="7aipPVpHb_t" role="37wK5m">
+                          <node concept="37vLTw" id="7aipPVpHb_u" role="2Oq$k0">
+                            <ref role="3cqZAo" node="7aipPVpHb_0" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="7aipPVpHb_v" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -12907,70 +13410,64 @@
                 </node>
                 <node concept="3clFbS" id="7aipPVpHb_A" role="1zc67A">
                   <node concept="3clFbF" id="7aipPVpHb_B" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_C" role="3clFbG">
-                      <node concept="3clFbT" id="7aipPVpHb_D" role="37vLTx" />
-                      <node concept="2OqwBi" id="7aipPVpHb_E" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_F" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_G" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHb_E" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_F" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgMmJm" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgMo3H" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHb_H" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_I" role="3clFbG">
-                      <node concept="Xl_RD" id="7aipPVpHb_J" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;constraint failed&gt;" />
+                    <node concept="2OqwBi" id="7aipPVpHb_K" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_L" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHb_K" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_L" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_M" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgMsYh" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="7aipPVpHb_J" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;constraint failed&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHb_N" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHb_O" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHb_W" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHb_X" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHb_Y" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
-                      </node>
-                      <node concept="2ShNRf" id="6C0OSEaIhux" role="37vLTx">
-                        <node concept="1pGfFk" id="6C0OSEaIi7m" role="2ShVmc">
-                          <ref role="37wK5l" to="oq0c:6C0OSEaHpjh" resolve="MessageValue" />
-                          <node concept="3cpWs3" id="7aipPVpHb_P" role="37wK5m">
-                            <node concept="Xl_RD" id="7aipPVpHb_Q" role="3uHU7w">
-                              <property role="Xl_RC" value="&gt;" />
-                            </node>
-                            <node concept="3cpWs3" id="7aipPVpHb_R" role="3uHU7B">
-                              <node concept="Xl_RD" id="7aipPVpHb_S" role="3uHU7B">
-                                <property role="Xl_RC" value="constraint failed &lt;" />
+                    <node concept="2OqwBi" id="7aipPVpHb_W" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHb_X" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgMzc0" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="2ShNRf" id="6C0OSEaIhux" role="37wK5m">
+                          <node concept="1pGfFk" id="6C0OSEaIi7m" role="2ShVmc">
+                            <ref role="37wK5l" to="oq0c:6C0OSEaHpjh" resolve="MessageValue" />
+                            <node concept="3cpWs3" id="7aipPVpHb_P" role="37wK5m">
+                              <node concept="Xl_RD" id="7aipPVpHb_Q" role="3uHU7w">
+                                <property role="Xl_RC" value="&gt;" />
                               </node>
-                              <node concept="2OqwBi" id="7aipPVpHb_T" role="3uHU7w">
-                                <node concept="2OwXpG" id="7aipPVpHb_U" role="2OqNvi">
-                                  <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                              <node concept="3cpWs3" id="7aipPVpHb_R" role="3uHU7B">
+                                <node concept="Xl_RD" id="7aipPVpHb_S" role="3uHU7B">
+                                  <property role="Xl_RC" value="constraint failed &lt;" />
                                 </node>
-                                <node concept="37vLTw" id="7aipPVpHb_V" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7aipPVpHb_$" resolve="ex" />
+                                <node concept="2OqwBi" id="7aipPVpHb_T" role="3uHU7w">
+                                  <node concept="2OwXpG" id="7aipPVpHb_U" role="2OqNvi">
+                                    <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                  </node>
+                                  <node concept="37vLTw" id="7aipPVpHb_V" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="7aipPVpHb_$" resolve="ex" />
+                                  </node>
                                 </node>
                               </node>
                             </node>
-                          </node>
-                          <node concept="2OqwBi" id="6C0OSEaIkuR" role="37wK5m">
-                            <node concept="37vLTw" id="6C0OSEaIjfj" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7aipPVpHb_$" resolve="ex" />
-                            </node>
-                            <node concept="2OwXpG" id="6C0OSEaIliy" role="2OqNvi">
-                              <ref role="2Oxat5" to="2ahs:2LEfNl_3lOx" resolve="node2" />
+                            <node concept="2OqwBi" id="6C0OSEaIkuR" role="37wK5m">
+                              <node concept="37vLTw" id="6C0OSEaIjfj" role="2Oq$k0">
+                                <ref role="3cqZAo" node="7aipPVpHb_$" resolve="ex" />
+                              </node>
+                              <node concept="2OwXpG" id="6C0OSEaIliy" role="2OqNvi">
+                                <ref role="2Oxat5" to="2ahs:2LEfNl_3lOx" resolve="node2" />
+                              </node>
                             </node>
                           </node>
                         </node>
@@ -12978,21 +13475,19 @@
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHb_Z" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbA0" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHbA1" role="37vLTx">
-                        <node concept="37vLTw" id="7aipPVpHbA2" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHb_$" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbA3" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHbA4" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbA5" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHbA4" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbA5" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbA6" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgMBJl" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="7aipPVpHbA1" role="37wK5m">
+                          <node concept="37vLTw" id="7aipPVpHbA2" role="2Oq$k0">
+                            <ref role="3cqZAo" node="7aipPVpHb_$" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="7aipPVpHbA3" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -13011,70 +13506,64 @@
                 </node>
                 <node concept="3clFbS" id="7aipPVpHbAa" role="1zc67A">
                   <node concept="3clFbF" id="7aipPVpHbAb" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbAc" role="3clFbG">
-                      <node concept="3clFbT" id="7aipPVpHbAd" role="37vLTx" />
-                      <node concept="2OqwBi" id="7aipPVpHbAe" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbAf" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAg" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHbAe" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbAf" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgMGDI" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgMHYt" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHbAh" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbAi" role="3clFbG">
-                      <node concept="Xl_RD" id="7aipPVpHbAj" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;interpreter failed&gt;" />
+                    <node concept="2OqwBi" id="7aipPVpHbAk" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbAl" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHbAk" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbAl" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAm" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgMLY$" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="7aipPVpHbAj" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;interpreter failed&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHbAn" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbAo" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHbAw" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbAx" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAy" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
-                      </node>
-                      <node concept="2ShNRf" id="6C0OSEaIlOZ" role="37vLTx">
-                        <node concept="1pGfFk" id="6C0OSEaImtO" role="2ShVmc">
-                          <ref role="37wK5l" to="oq0c:6C0OSEaHpjh" resolve="MessageValue" />
-                          <node concept="3cpWs3" id="7aipPVpHbAp" role="37wK5m">
-                            <node concept="Xl_RD" id="7aipPVpHbAq" role="3uHU7w">
-                              <property role="Xl_RC" value="&gt;" />
-                            </node>
-                            <node concept="3cpWs3" id="7aipPVpHbAr" role="3uHU7B">
-                              <node concept="Xl_RD" id="7aipPVpHbAs" role="3uHU7B">
-                                <property role="Xl_RC" value="interpreter failed &lt;" />
+                    <node concept="2OqwBi" id="7aipPVpHbAw" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbAx" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgMUIB" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="2ShNRf" id="6C0OSEaIlOZ" role="37wK5m">
+                          <node concept="1pGfFk" id="6C0OSEaImtO" role="2ShVmc">
+                            <ref role="37wK5l" to="oq0c:6C0OSEaHpjh" resolve="MessageValue" />
+                            <node concept="3cpWs3" id="7aipPVpHbAp" role="37wK5m">
+                              <node concept="Xl_RD" id="7aipPVpHbAq" role="3uHU7w">
+                                <property role="Xl_RC" value="&gt;" />
                               </node>
-                              <node concept="2OqwBi" id="7aipPVpHbAt" role="3uHU7w">
-                                <node concept="2OwXpG" id="7aipPVpHbAu" role="2OqNvi">
-                                  <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                              <node concept="3cpWs3" id="7aipPVpHbAr" role="3uHU7B">
+                                <node concept="Xl_RD" id="7aipPVpHbAs" role="3uHU7B">
+                                  <property role="Xl_RC" value="interpreter failed &lt;" />
                                 </node>
-                                <node concept="37vLTw" id="7aipPVpHbAv" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7aipPVpHbA8" resolve="ex" />
+                                <node concept="2OqwBi" id="7aipPVpHbAt" role="3uHU7w">
+                                  <node concept="2OwXpG" id="7aipPVpHbAu" role="2OqNvi">
+                                    <ref role="2Oxat5" to="2ahs:3Y6fbK1oUMZ" resolve="msg" />
+                                  </node>
+                                  <node concept="37vLTw" id="7aipPVpHbAv" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="7aipPVpHbA8" resolve="ex" />
+                                  </node>
                                 </node>
                               </node>
                             </node>
-                          </node>
-                          <node concept="2OqwBi" id="6C0OSEaInyy" role="37wK5m">
-                            <node concept="37vLTw" id="6C0OSEaIn9x" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7aipPVpHbA8" resolve="ex" />
-                            </node>
-                            <node concept="2OwXpG" id="6C0OSEaIoom" role="2OqNvi">
-                              <ref role="2Oxat5" to="2ahs:2LEfNl_3lOx" resolve="node2" />
+                            <node concept="2OqwBi" id="6C0OSEaInyy" role="37wK5m">
+                              <node concept="37vLTw" id="6C0OSEaIn9x" role="2Oq$k0">
+                                <ref role="3cqZAo" node="7aipPVpHbA8" resolve="ex" />
+                              </node>
+                              <node concept="2OwXpG" id="6C0OSEaIoom" role="2OqNvi">
+                                <ref role="2Oxat5" to="2ahs:2LEfNl_3lOx" resolve="node2" />
+                              </node>
                             </node>
                           </node>
                         </node>
@@ -13082,21 +13571,19 @@
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHbAz" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbA$" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHbA_" role="37vLTx">
-                        <node concept="37vLTw" id="7aipPVpHbAA" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbA8" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAB" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHbAC" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbAD" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHbAC" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbAD" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAE" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgMYoK" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="7aipPVpHbA_" role="37wK5m">
+                          <node concept="37vLTw" id="7aipPVpHbAA" role="2Oq$k0">
+                            <ref role="3cqZAo" node="7aipPVpHbA8" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="7aipPVpHbAB" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -13115,77 +13602,71 @@
                 </node>
                 <node concept="3clFbS" id="7aipPVpHbAI" role="1zc67A">
                   <node concept="3clFbF" id="7aipPVpHbAJ" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbAK" role="3clFbG">
-                      <node concept="3clFbT" id="7aipPVpHbAL" role="37vLTx" />
-                      <node concept="2OqwBi" id="7aipPVpHbAM" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbAN" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAO" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="7aipPVpHbAM" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbAN" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgN38Z" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgN4u6" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHbAP" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbAQ" role="3clFbG">
-                      <node concept="Xl_RD" id="7aipPVpHbAR" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;interpreter failed internally&gt;" />
+                    <node concept="2OqwBi" id="7aipPVpHbAS" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbAT" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="7aipPVpHbAS" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbAT" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbAU" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgN8Ox" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="7aipPVpHbAR" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;interpreter failed internally&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="7aipPVpHbAV" role="3cqZAp">
-                    <node concept="37vLTI" id="7aipPVpHbAW" role="3clFbG">
-                      <node concept="2OqwBi" id="7aipPVpHbBa" role="37vLTJ">
-                        <node concept="37vLTw" id="7aipPVpHbBb" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="7aipPVpHbBc" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
-                      </node>
-                      <node concept="2ShNRf" id="6C0OSEaIqyV" role="37vLTx">
-                        <node concept="1pGfFk" id="6C0OSEaIrbK" role="2ShVmc">
-                          <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                          <node concept="3cpWs3" id="7aipPVpHbAX" role="37wK5m">
-                            <node concept="2OqwBi" id="7aipPVpHbAY" role="3uHU7w">
-                              <node concept="liA8E" id="7aipPVpHbAZ" role="2OqNvi">
-                                <ref role="37wK5l" to="wyt6:~Throwable.getMessage()" resolve="getMessage" />
-                              </node>
-                              <node concept="37vLTw" id="7aipPVpHbB0" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7aipPVpHbAG" resolve="t" />
+                    <node concept="2OqwBi" id="7aipPVpHbBa" role="3clFbG">
+                      <node concept="37vLTw" id="7aipPVpHbBb" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgNeh$" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="2ShNRf" id="6C0OSEaIqyV" role="37wK5m">
+                          <node concept="1pGfFk" id="6C0OSEaIrbK" role="2ShVmc">
+                            <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                            <node concept="3cpWs3" id="7aipPVpHbAX" role="37wK5m">
+                              <node concept="2OqwBi" id="7aipPVpHbAY" role="3uHU7w">
+                                <node concept="liA8E" id="7aipPVpHbAZ" role="2OqNvi">
+                                  <ref role="37wK5l" to="wyt6:~Throwable.getMessage()" resolve="getMessage" />
+                                </node>
+                                <node concept="37vLTw" id="7aipPVpHbB0" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="7aipPVpHbAG" resolve="t" />
+                                </node>
                               </node>
-                            </node>
-                            <node concept="3cpWs3" id="7aipPVpHbB1" role="3uHU7B">
-                              <node concept="3cpWs3" id="7aipPVpHbB2" role="3uHU7B">
-                                <node concept="2OqwBi" id="7aipPVpHbB3" role="3uHU7w">
-                                  <node concept="2OqwBi" id="7aipPVpHbB4" role="2Oq$k0">
-                                    <node concept="37vLTw" id="7aipPVpHbB5" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="7aipPVpHbAG" resolve="t" />
+                              <node concept="3cpWs3" id="7aipPVpHbB1" role="3uHU7B">
+                                <node concept="3cpWs3" id="7aipPVpHbB2" role="3uHU7B">
+                                  <node concept="2OqwBi" id="7aipPVpHbB3" role="3uHU7w">
+                                    <node concept="2OqwBi" id="7aipPVpHbB4" role="2Oq$k0">
+                                      <node concept="37vLTw" id="7aipPVpHbB5" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="7aipPVpHbAG" resolve="t" />
+                                      </node>
+                                      <node concept="liA8E" id="7aipPVpHbB6" role="2OqNvi">
+                                        <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                                      </node>
                                     </node>
-                                    <node concept="liA8E" id="7aipPVpHbB6" role="2OqNvi">
-                                      <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+                                    <node concept="liA8E" id="7aipPVpHbB7" role="2OqNvi">
+                                      <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
                                     </node>
                                   </node>
-                                  <node concept="liA8E" id="7aipPVpHbB7" role="2OqNvi">
-                                    <ref role="37wK5l" to="wyt6:~Class.getName()" resolve="getName" />
+                                  <node concept="Xl_RD" id="7aipPVpHbB8" role="3uHU7B">
+                                    <property role="Xl_RC" value="interpreter failed internally: " />
                                   </node>
                                 </node>
-                                <node concept="Xl_RD" id="7aipPVpHbB8" role="3uHU7B">
-                                  <property role="Xl_RC" value="interpreter failed internally: " />
+                                <node concept="Xl_RD" id="7aipPVpHbB9" role="3uHU7w">
+                                  <property role="Xl_RC" value=" / " />
                                 </node>
                               </node>
-                              <node concept="Xl_RD" id="7aipPVpHbB9" role="3uHU7w">
-                                <property role="Xl_RC" value=" / " />
-                              </node>
                             </node>
                           </node>
                         </node>
@@ -13235,7 +13716,7 @@
                   <node concept="3cpWsn" id="7aipPVpHbzn" role="3cpWs9">
                     <property role="TrG5h" value="rr" />
                     <node concept="3uibUv" id="7aipPVpHbzo" role="1tU5fm">
-                      <ref role="3uigEE" to="pbu6:4Pi6J8Cccqb" resolve="ValueAndTraceAndEnv" />
+                      <ref role="3uigEE" to="pbu6:7LZDtvhtD$G" resolve="IValueAndTraceAndEnv" />
                     </node>
                     <node concept="BsUDl" id="7aipPVpHbzp" role="33vP2m">
                       <ref role="37wK5l" node="7obiejCzVLz" resolve="evalWithTraceAndEnv" />
@@ -13246,50 +13727,46 @@
                 <node concept="3clFbJ" id="7aipPVpHbzr" role="3cqZAp">
                   <node concept="3clFbS" id="7aipPVpHbzs" role="3clFbx">
                     <node concept="3clFbF" id="7aipPVpHbzt" role="3cqZAp">
-                      <node concept="37vLTI" id="7aipPVpHbzu" role="3clFbG">
-                        <node concept="2OqwBi" id="7aipPVpHbzv" role="37vLTx">
-                          <node concept="37vLTw" id="7aipPVpHbzw" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7aipPVpHbzn" resolve="rr" />
-                          </node>
-                          <node concept="2OwXpG" id="7aipPVpHbzx" role="2OqNvi">
-                            <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
-                          </node>
+                      <node concept="2OqwBi" id="7aipPVpHbzy" role="3clFbG">
+                        <node concept="37vLTw" id="7aipPVpHbzz" role="2Oq$k0">
+                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="7aipPVpHbzy" role="37vLTJ">
-                          <node concept="37vLTw" id="7aipPVpHbzz" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="7aipPVpHbz$" role="2OqNvi">
-                            <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                        <node concept="liA8E" id="7LZDtvgLLjL" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                          <node concept="2OqwBi" id="7aipPVpHbzv" role="37wK5m">
+                            <node concept="37vLTw" id="7aipPVpHbzw" role="2Oq$k0">
+                              <ref role="3cqZAo" node="7aipPVpHbzn" resolve="rr" />
+                            </node>
+                            <node concept="liA8E" id="7LZDtvhoTDe" role="2OqNvi">
+                              <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                            </node>
                           </node>
                         </node>
                       </node>
                     </node>
                     <node concept="3clFbF" id="7aipPVpHogF" role="3cqZAp">
-                      <node concept="37vLTI" id="7aipPVpHpXN" role="3clFbG">
-                        <node concept="2OqwBi" id="7aipPVpHp3t" role="37vLTJ">
-                          <node concept="37vLTw" id="7aipPVpHogD" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="7aipPVpHpGl" role="2OqNvi">
-                            <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
-                          </node>
+                      <node concept="2OqwBi" id="7aipPVpHp3t" role="3clFbG">
+                        <node concept="37vLTw" id="7aipPVpHogD" role="2Oq$k0">
+                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="7aipPVpHrHH" role="37vLTx">
-                          <node concept="2OqwBi" id="7aipPVpHrHI" role="2Oq$k0">
-                            <node concept="37vLTw" id="7aipPVpHrHJ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="7aipPVpHbzn" resolve="rr" />
-                            </node>
-                            <node concept="liA8E" id="7aipPVpHrHK" role="2OqNvi">
-                              <ref role="37wK5l" to="pbu6:4Pi6J8CclOV" resolve="env" />
+                        <node concept="liA8E" id="7LZDtvgLSCj" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                          <node concept="2OqwBi" id="7aipPVpHrHH" role="37wK5m">
+                            <node concept="2OqwBi" id="7aipPVpHrHI" role="2Oq$k0">
+                              <node concept="37vLTw" id="7aipPVpHrHJ" role="2Oq$k0">
+                                <ref role="3cqZAo" node="7aipPVpHbzn" resolve="rr" />
+                              </node>
+                              <node concept="liA8E" id="7aipPVpHrHK" role="2OqNvi">
+                                <ref role="37wK5l" to="pbu6:7LZDtvhtDNX" resolve="env" />
+                              </node>
                             </node>
-                          </node>
-                          <node concept="liA8E" id="7aipPVpHrHL" role="2OqNvi">
-                            <ref role="37wK5l" to="33ny:~Map.get(java.lang.Object)" resolve="get" />
-                            <node concept="2OqwBi" id="7aipPVpHrHM" role="37wK5m">
-                              <node concept="13iPFW" id="7aipPVpHrHN" role="2Oq$k0" />
-                              <node concept="3TrEf2" id="7aipPVpHrHO" role="2OqNvi">
-                                <ref role="3Tt5mk" to="av4b:7aipPVpH1LP" resolve="actual" />
+                            <node concept="liA8E" id="7aipPVpHrHL" role="2OqNvi">
+                              <ref role="37wK5l" to="33ny:~Map.get(java.lang.Object)" resolve="get" />
+                              <node concept="2OqwBi" id="7aipPVpHrHM" role="37wK5m">
+                                <node concept="13iPFW" id="7aipPVpHrHN" role="2Oq$k0" />
+                                <node concept="3TrEf2" id="7aipPVpHrHO" role="2OqNvi">
+                                  <ref role="3Tt5mk" to="av4b:7aipPVpH1LP" resolve="actual" />
+                                </node>
                               </node>
                             </node>
                           </node>
@@ -13297,16 +13774,14 @@
                       </node>
                     </node>
                     <node concept="3clFbF" id="7aipPVpJVo4" role="3cqZAp">
-                      <node concept="37vLTI" id="7aipPVpJWBN" role="3clFbG">
-                        <node concept="3clFbT" id="7aipPVpJWPt" role="37vLTx">
-                          <property role="3clFbU" value="true" />
+                      <node concept="2OqwBi" id="7aipPVpJVK1" role="3clFbG">
+                        <node concept="37vLTw" id="7aipPVpJVo2" role="2Oq$k0">
+                          <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="7aipPVpJVK1" role="37vLTJ">
-                          <node concept="37vLTw" id="7aipPVpJVo2" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7aipPVpHbz6" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="7aipPVpJW4V" role="2OqNvi">
-                            <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                        <node concept="liA8E" id="7LZDtvgLXKb" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                          <node concept="3clFbT" id="7LZDtvgLZ46" role="37wK5m">
+                            <property role="3clFbU" value="true" />
                           </node>
                         </node>
                       </node>
@@ -13384,6 +13859,7 @@
     <ref role="13h7C2" to="av4b:5Pgo_AS3Joq" resolve="AssertThatTestItem" />
     <node concept="13i0hz" id="5Pgo_AS57ir" role="13h7CS">
       <property role="TrG5h" value="isStructurallyValid" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="5Pgo_AS57is" role="1B3o_S" />
       <node concept="10P_77" id="5Pgo_AS57it" role="3clF45" />
       <node concept="3clFbS" id="5Pgo_AS57iu" role="3clF47">
@@ -13424,7 +13900,7 @@
                         <node concept="2OqwBi" id="5Pgo_AS5orO" role="3fr31v">
                           <node concept="2OqwBi" id="5Pgo_AS5orP" role="2Oq$k0">
                             <node concept="37vLTw" id="5Pgo_AS5orQ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5Pgo_AS5lRi" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817fO" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="5Pgo_AS5orR" role="2OqNvi" />
                           </node>
@@ -13435,9 +13911,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5Pgo_AS5lRi" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817fO" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5Pgo_AS5lRj" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817fP" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -13494,70 +13970,62 @@
                 </node>
                 <node concept="3clFbS" id="5Pgo_AS66TB" role="1zc67A">
                   <node concept="3clFbF" id="5Pgo_AS66TC" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66TD" role="3clFbG">
-                      <node concept="3clFbT" id="5Pgo_AS66TE" role="37vLTx" />
-                      <node concept="2OqwBi" id="5Pgo_AS66TF" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66TG" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66TH" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66TF" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66TG" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgKwmJ" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgKxcg" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66TI" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66TJ" role="3clFbG">
-                      <node concept="Xl_RD" id="5Pgo_AS66TK" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;constraint failed&gt;" />
+                    <node concept="2OqwBi" id="5Pgo_AS66TL" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66TM" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66TL" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66TM" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66TN" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgK$e$" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="5Pgo_AS66TK" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;constraint failed&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66TO" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66TP" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66TX" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66TY" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66TZ" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66TX" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66TY" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14QCP7" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3YhAT14QDa$" role="37wK5m">
-                          <property role="Xl_RC" value="constraint failed" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QELh" role="37wK5m">
-                          <ref role="3cqZAo" node="5Pgo_AS66T_" resolve="ex" />
+                      <node concept="liA8E" id="7LZDtvgKB8f" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14QCP7" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3YhAT14QDa$" role="37wK5m">
+                            <property role="Xl_RC" value="constraint failed" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QELh" role="37wK5m">
+                            <ref role="3cqZAo" node="5Pgo_AS66T_" resolve="ex" />
+                          </node>
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66U0" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66U1" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66U2" role="37vLTx">
-                        <node concept="37vLTw" id="5Pgo_AS66U3" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66T_" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66U4" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66U5" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66U6" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66U5" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66U6" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66U7" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgKEBa" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="5Pgo_AS66U2" role="37wK5m">
+                          <node concept="37vLTw" id="5Pgo_AS66U3" role="2Oq$k0">
+                            <ref role="3cqZAo" node="5Pgo_AS66T_" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="5Pgo_AS66U4" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -13576,70 +14044,62 @@
                 </node>
                 <node concept="3clFbS" id="5Pgo_AS66Ub" role="1zc67A">
                   <node concept="3clFbF" id="5Pgo_AS66Uc" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66Ud" role="3clFbG">
-                      <node concept="3clFbT" id="5Pgo_AS66Ue" role="37vLTx" />
-                      <node concept="2OqwBi" id="5Pgo_AS66Uf" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66Ug" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Uh" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66Uf" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66Ug" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgKHyz" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgKJ2p" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66Ui" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66Uj" role="3clFbG">
-                      <node concept="Xl_RD" id="5Pgo_AS66Uk" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;invalid value detected&gt;" />
+                    <node concept="2OqwBi" id="5Pgo_AS66Ul" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66Um" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66Ul" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66Um" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Un" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgKLI1" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="5Pgo_AS66Uk" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;invalid value detected&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66Uo" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66Up" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66Ux" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66Uy" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Uz" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66Ux" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66Uy" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14QFOA" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3YhAT14QGa3" role="37wK5m">
-                          <property role="Xl_RC" value="invalid value detected" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QIG1" role="37wK5m">
-                          <ref role="3cqZAo" node="5Pgo_AS66U9" resolve="ex" />
+                      <node concept="liA8E" id="7LZDtvgKP4n" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14QFOA" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3YhAT14QGa3" role="37wK5m">
+                            <property role="Xl_RC" value="invalid value detected" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QIG1" role="37wK5m">
+                            <ref role="3cqZAo" node="5Pgo_AS66U9" resolve="ex" />
+                          </node>
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66U$" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66U_" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66UA" role="37vLTx">
-                        <node concept="37vLTw" id="5Pgo_AS66UB" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66U9" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66UC" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66UD" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66UE" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66UD" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66UE" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66UF" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgKRJg" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="5Pgo_AS66UA" role="37wK5m">
+                          <node concept="37vLTw" id="5Pgo_AS66UB" role="2Oq$k0">
+                            <ref role="3cqZAo" node="5Pgo_AS66U9" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="5Pgo_AS66UC" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -13658,70 +14118,62 @@
                 </node>
                 <node concept="3clFbS" id="5Pgo_AS66UJ" role="1zc67A">
                   <node concept="3clFbF" id="5Pgo_AS66UK" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66UL" role="3clFbG">
-                      <node concept="3clFbT" id="5Pgo_AS66UM" role="37vLTx" />
-                      <node concept="2OqwBi" id="5Pgo_AS66UN" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66UO" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66UP" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66UN" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66UO" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgKVFH" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgKWxY" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66UQ" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66UR" role="3clFbG">
-                      <node concept="Xl_RD" id="5Pgo_AS66US" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;interpreter failed&gt;" />
+                    <node concept="2OqwBi" id="5Pgo_AS66UT" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66UU" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66UT" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66UU" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66UV" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgKYxi" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="5Pgo_AS66US" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;interpreter failed&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66UW" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66UX" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66V5" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66V6" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66V7" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66V5" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66V6" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14QLxK" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3YhAT14QLYl" role="37wK5m">
-                          <property role="Xl_RC" value="interpreter failed" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QMYw" role="37wK5m">
-                          <ref role="3cqZAo" node="5Pgo_AS66UH" resolve="ex" />
+                      <node concept="liA8E" id="7LZDtvgL2c_" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14QLxK" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3YhAT14QLYl" role="37wK5m">
+                            <property role="Xl_RC" value="interpreter failed" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QMYw" role="37wK5m">
+                            <ref role="3cqZAo" node="5Pgo_AS66UH" resolve="ex" />
+                          </node>
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66V8" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66V9" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66Va" role="37vLTx">
-                        <node concept="37vLTw" id="5Pgo_AS66Vb" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66UH" resolve="ex" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Vc" role="2OqNvi">
-                          <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66Vd" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66Ve" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66Vd" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66Ve" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Vf" role="2OqNvi">
-                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                      <node concept="liA8E" id="7LZDtvgL4TZ" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                        <node concept="2OqwBi" id="5Pgo_AS66Va" role="37wK5m">
+                          <node concept="37vLTw" id="5Pgo_AS66Vb" role="2Oq$k0">
+                            <ref role="3cqZAo" node="5Pgo_AS66UH" resolve="ex" />
+                          </node>
+                          <node concept="2OwXpG" id="5Pgo_AS66Vc" role="2OqNvi">
+                            <ref role="2Oxat5" to="2ahs:2jL$v5BnuLX" resolve="failedTrace" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -13740,50 +14192,44 @@
                 </node>
                 <node concept="3clFbS" id="5Pgo_AS66Vj" role="1zc67A">
                   <node concept="3clFbF" id="5Pgo_AS66Vk" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66Vl" role="3clFbG">
-                      <node concept="3clFbT" id="5Pgo_AS66Vm" role="37vLTx" />
-                      <node concept="2OqwBi" id="5Pgo_AS66Vn" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66Vo" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Vp" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66Vn" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66Vo" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                      </node>
+                      <node concept="liA8E" id="7LZDtvgL8Dz" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                        <node concept="3clFbT" id="7LZDtvgL9wc" role="37wK5m" />
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66Vq" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66Vr" role="3clFbG">
-                      <node concept="Xl_RD" id="5Pgo_AS66Vs" role="37vLTx">
-                        <property role="Xl_RC" value="&lt;interpreter failed internally&gt;" />
+                    <node concept="2OqwBi" id="5Pgo_AS66Vt" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66Vu" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="2OqwBi" id="5Pgo_AS66Vt" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66Vu" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66Vv" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                      <node concept="liA8E" id="7LZDtvgLbKO" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                        <node concept="Xl_RD" id="5Pgo_AS66Vs" role="37wK5m">
+                          <property role="Xl_RC" value="&lt;interpreter failed internally&gt;" />
                         </node>
                       </node>
                     </node>
                   </node>
                   <node concept="3clFbF" id="5Pgo_AS66Vw" role="3cqZAp">
-                    <node concept="37vLTI" id="5Pgo_AS66Vx" role="3clFbG">
-                      <node concept="2OqwBi" id="5Pgo_AS66VJ" role="37vLTJ">
-                        <node concept="37vLTw" id="5Pgo_AS66VK" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                        </node>
-                        <node concept="2OwXpG" id="5Pgo_AS66VL" role="2OqNvi">
-                          <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                        </node>
+                    <node concept="2OqwBi" id="5Pgo_AS66VJ" role="3clFbG">
+                      <node concept="37vLTw" id="5Pgo_AS66VK" role="2Oq$k0">
+                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                       </node>
-                      <node concept="BsUDl" id="3YhAT14QNVE" role="37vLTx">
-                        <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
-                        <node concept="Xl_RD" id="3YhAT14QOhc" role="37wK5m">
-                          <property role="Xl_RC" value="interpreter failed internally" />
-                        </node>
-                        <node concept="37vLTw" id="3YhAT14QPn8" role="37wK5m">
-                          <ref role="3cqZAo" node="5Pgo_AS66Vh" resolve="t" />
+                      <node concept="liA8E" id="7LZDtvgLhMH" role="2OqNvi">
+                        <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                        <node concept="BsUDl" id="3YhAT14QNVE" role="37wK5m">
+                          <ref role="37wK5l" node="3YhAT14QasA" resolve="wrapException" />
+                          <node concept="Xl_RD" id="3YhAT14QOhc" role="37wK5m">
+                            <property role="Xl_RC" value="interpreter failed internally" />
+                          </node>
+                          <node concept="37vLTw" id="3YhAT14QPn8" role="37wK5m">
+                            <ref role="3cqZAo" node="5Pgo_AS66Vh" resolve="t" />
+                          </node>
                         </node>
                       </node>
                     </node>
@@ -13820,7 +14266,7 @@
                   <node concept="3cpWsn" id="6vw$0gDuVWW" role="3cpWs9">
                     <property role="TrG5h" value="matcherVat" />
                     <node concept="3uibUv" id="6vw$0gDvFC5" role="1tU5fm">
-                      <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+                      <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
                     </node>
                     <node concept="BsUDl" id="5Pgo_AS6XYp" role="33vP2m">
                       <ref role="37wK5l" node="6vw$0gDuos0" resolve="evaluateMatcher" />
@@ -13830,82 +14276,72 @@
                 <node concept="3clFbJ" id="6vw$0gDvp9s" role="3cqZAp">
                   <node concept="3clFbS" id="6vw$0gDvp9u" role="3clFbx">
                     <node concept="3clFbF" id="6vw$0gDtTbb" role="3cqZAp">
-                      <node concept="37vLTI" id="6vw$0gDtUBb" role="3clFbG">
-                        <node concept="3clFbT" id="6vw$0gDtUGC" role="37vLTx">
-                          <property role="3clFbU" value="false" />
+                      <node concept="2OqwBi" id="6vw$0gDtTOq" role="3clFbG">
+                        <node concept="37vLTw" id="6vw$0gDtTb9" role="2Oq$k0">
+                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="6vw$0gDtTOq" role="37vLTJ">
-                          <node concept="37vLTw" id="6vw$0gDtTb9" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="6vw$0gDtU4N" role="2OqNvi">
-                            <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                          </node>
+                        <node concept="liA8E" id="7LZDtvgJL3E" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                          <node concept="3clFbT" id="7LZDtvgJLRO" role="37wK5m" />
                         </node>
                       </node>
                     </node>
                     <node concept="3clFbF" id="6vw$0gDu7jl" role="3cqZAp">
-                      <node concept="37vLTI" id="6vw$0gDu9xr" role="3clFbG">
-                        <node concept="Xl_RD" id="6vw$0gDu9_Z" role="37vLTx">
-                          <property role="Xl_RC" value="no expectation" />
+                      <node concept="2OqwBi" id="6vw$0gDu81c" role="3clFbG">
+                        <node concept="37vLTw" id="6vw$0gDu7jj" role="2Oq$k0">
+                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                         </node>
-                        <node concept="2OqwBi" id="6vw$0gDu81c" role="37vLTJ">
-                          <node concept="37vLTw" id="6vw$0gDu7jj" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="6vw$0gDu8Gj" role="2OqNvi">
-                            <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                        <node concept="liA8E" id="7LZDtvgJO6m" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                          <node concept="Xl_RD" id="6vw$0gDu9_Z" role="37wK5m">
+                            <property role="Xl_RC" value="no expectation" />
                           </node>
                         </node>
                       </node>
                     </node>
                     <node concept="3clFbF" id="6vw$0gDtW$1" role="3cqZAp">
-                      <node concept="37vLTI" id="6vw$0gDtZk2" role="3clFbG">
-                        <node concept="2OqwBi" id="6vw$0gDtXfb" role="37vLTJ">
-                          <node concept="37vLTw" id="6vw$0gDtWzZ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="6vw$0gDtYhr" role="2OqNvi">
-                            <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                          </node>
+                      <node concept="2OqwBi" id="6vw$0gDtXfb" role="3clFbG">
+                        <node concept="37vLTw" id="6vw$0gDtWzZ" role="2Oq$k0">
+                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                         </node>
-                        <node concept="2ShNRf" id="6C0OSEaHBBq" role="37vLTx">
-                          <node concept="1pGfFk" id="6C0OSEaHCrL" role="2ShVmc">
-                            <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                            <node concept="Xl_RD" id="6vw$0gDugdD" role="37wK5m">
-                              <property role="Xl_RC" value="cannot evaluate test with no expectation" />
+                        <node concept="liA8E" id="7LZDtvgJRG7" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                          <node concept="2ShNRf" id="6C0OSEaHBBq" role="37wK5m">
+                            <node concept="1pGfFk" id="6C0OSEaHCrL" role="2ShVmc">
+                              <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                              <node concept="Xl_RD" id="6vw$0gDugdD" role="37wK5m">
+                                <property role="Xl_RC" value="cannot evaluate test with no expectation" />
+                              </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
                     <node concept="3clFbF" id="6vw$0gDy4ph" role="3cqZAp">
-                      <node concept="37vLTI" id="6vw$0gDy5vn" role="3clFbG">
-                        <node concept="3K4zz7" id="6vw$0gDy7it" role="37vLTx">
-                          <node concept="10Nm6u" id="6vw$0gDy7iE" role="3K4E3e" />
-                          <node concept="2OqwBi" id="6vw$0gDy7Lc" role="3K4GZi">
-                            <node concept="37vLTw" id="6vw$0gDy7D4" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6vw$0gDuVWW" resolve="matcherVat" />
-                            </node>
-                            <node concept="2OwXpG" id="6vw$0gDy7VU" role="2OqNvi">
-                              <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
+                      <node concept="2OqwBi" id="6vw$0gDy4xm" role="3clFbG">
+                        <node concept="37vLTw" id="6vw$0gDy4pf" role="2Oq$k0">
+                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                        </node>
+                        <node concept="liA8E" id="7LZDtvgJVdV" role="2OqNvi">
+                          <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                          <node concept="3K4zz7" id="6vw$0gDy7it" role="37wK5m">
+                            <node concept="10Nm6u" id="6vw$0gDy7iE" role="3K4E3e" />
+                            <node concept="2OqwBi" id="6vw$0gDy7Lc" role="3K4GZi">
+                              <node concept="37vLTw" id="6vw$0gDy7D4" role="2Oq$k0">
+                                <ref role="3cqZAo" node="6vw$0gDuVWW" resolve="matcherVat" />
+                              </node>
+                              <node concept="liA8E" id="7LZDtvhoMyN" role="2OqNvi">
+                                <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                              </node>
                             </node>
-                          </node>
-                          <node concept="3clFbC" id="6vw$0gDy7cj" role="3K4Cdx">
-                            <node concept="10Nm6u" id="6vw$0gDy7cq" role="3uHU7w" />
-                            <node concept="37vLTw" id="6vw$0gDy5Rf" role="3uHU7B">
-                              <ref role="3cqZAo" node="6vw$0gDuVWW" resolve="matcherVat" />
+                            <node concept="3clFbC" id="6vw$0gDy7cj" role="3K4Cdx">
+                              <node concept="10Nm6u" id="6vw$0gDy7cq" role="3uHU7w" />
+                              <node concept="37vLTw" id="6vw$0gDy5Rf" role="3uHU7B">
+                                <ref role="3cqZAo" node="6vw$0gDuVWW" resolve="matcherVat" />
+                              </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="2OqwBi" id="6vw$0gDy4xm" role="37vLTJ">
-                          <node concept="37vLTw" id="6vw$0gDy4pf" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                          </node>
-                          <node concept="2OwXpG" id="6vw$0gDy4HL" role="2OqNvi">
-                            <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
-                          </node>
-                        </node>
                       </node>
                     </node>
                   </node>
@@ -13917,8 +14353,8 @@
                             <node concept="37vLTw" id="6vw$0gDxj_i" role="2Oq$k0">
                               <ref role="3cqZAo" node="6vw$0gDuVWW" resolve="matcherVat" />
                             </node>
-                            <node concept="2OwXpG" id="6vw$0gDxjX_" role="2OqNvi">
-                              <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                            <node concept="liA8E" id="7LZDtvhozc5" role="2OqNvi">
+                              <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                             </node>
                           </node>
                           <node concept="3uibUv" id="PaMsOE3r8x" role="2ZW6by">
@@ -13940,7 +14376,7 @@
                         <node concept="3cpWsn" id="6vw$0gDvHIm" role="3cpWs9">
                           <property role="TrG5h" value="valueVat" />
                           <node concept="3uibUv" id="6vw$0gDvHIn" role="1tU5fm">
-                            <ref role="3uigEE" to="pbu6:7lHetQyBI3r" resolve="ValueAndTrace" />
+                            <ref role="3uigEE" to="pbu6:7LZDtvhnXHQ" resolve="IValueAndTrace" />
                           </node>
                           <node concept="BsUDl" id="5Pgo_AS70Bo" role="33vP2m">
                             <ref role="37wK5l" node="6vw$0gDvi9b" resolve="evaluateValue" />
@@ -13950,82 +14386,72 @@
                       <node concept="3clFbJ" id="6vw$0gDvM53" role="3cqZAp">
                         <node concept="3clFbS" id="6vw$0gDvM55" role="3clFbx">
                           <node concept="3clFbF" id="6vw$0gDvNKf" role="3cqZAp">
-                            <node concept="37vLTI" id="6vw$0gDvPde" role="3clFbG">
-                              <node concept="3clFbT" id="6vw$0gDvPKq" role="37vLTx">
-                                <property role="3clFbU" value="false" />
+                            <node concept="2OqwBi" id="6vw$0gDvNWw" role="3clFbG">
+                              <node concept="37vLTw" id="6vw$0gDvNKd" role="2Oq$k0">
+                                <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                               </node>
-                              <node concept="2OqwBi" id="6vw$0gDvNWw" role="37vLTJ">
-                                <node concept="37vLTw" id="6vw$0gDvNKd" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                </node>
-                                <node concept="2OwXpG" id="6vw$0gDvOcP" role="2OqNvi">
-                                  <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                                </node>
+                              <node concept="liA8E" id="7LZDtvgJYDp" role="2OqNvi">
+                                <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                                <node concept="3clFbT" id="7LZDtvgJZK0" role="37wK5m" />
                               </node>
                             </node>
                           </node>
                           <node concept="3clFbF" id="6vw$0gDvQUm" role="3cqZAp">
-                            <node concept="37vLTI" id="6vw$0gDvS9H" role="3clFbG">
-                              <node concept="Xl_RD" id="6vw$0gDvTfg" role="37vLTx">
-                                <property role="Xl_RC" value="no result" />
+                            <node concept="2OqwBi" id="6vw$0gDvR6B" role="3clFbG">
+                              <node concept="37vLTw" id="6vw$0gDvQUk" role="2Oq$k0">
+                                <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                               </node>
-                              <node concept="2OqwBi" id="6vw$0gDvR6B" role="37vLTJ">
-                                <node concept="37vLTw" id="6vw$0gDvQUk" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                </node>
-                                <node concept="2OwXpG" id="6vw$0gDvRn2" role="2OqNvi">
-                                  <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                              <node concept="liA8E" id="7LZDtvgK2yR" role="2OqNvi">
+                                <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                                <node concept="Xl_RD" id="6vw$0gDvTfg" role="37wK5m">
+                                  <property role="Xl_RC" value="no result" />
                                 </node>
                               </node>
                             </node>
                           </node>
                           <node concept="3clFbF" id="6vw$0gDvUR_" role="3cqZAp">
-                            <node concept="37vLTI" id="6vw$0gDvWN2" role="3clFbG">
-                              <node concept="2OqwBi" id="6vw$0gDvV3Q" role="37vLTJ">
-                                <node concept="37vLTw" id="6vw$0gDvURz" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                </node>
-                                <node concept="2OwXpG" id="6vw$0gDvVM_" role="2OqNvi">
-                                  <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                                </node>
+                            <node concept="2OqwBi" id="6vw$0gDvV3Q" role="3clFbG">
+                              <node concept="37vLTw" id="6vw$0gDvURz" role="2Oq$k0">
+                                <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                               </node>
-                              <node concept="2ShNRf" id="6C0OSEaHDrC" role="37vLTx">
-                                <node concept="1pGfFk" id="6C0OSEaHEfZ" role="2ShVmc">
-                                  <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                                  <node concept="Xl_RD" id="6vw$0gDvWSl" role="37wK5m">
-                                    <property role="Xl_RC" value="cannot evaluate test with no result" />
+                              <node concept="liA8E" id="7LZDtvgK5oU" role="2OqNvi">
+                                <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                                <node concept="2ShNRf" id="6C0OSEaHDrC" role="37wK5m">
+                                  <node concept="1pGfFk" id="6C0OSEaHEfZ" role="2ShVmc">
+                                    <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                                    <node concept="Xl_RD" id="6vw$0gDvWSl" role="37wK5m">
+                                      <property role="Xl_RC" value="cannot evaluate test with no result" />
+                                    </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
                           <node concept="3clFbF" id="6vw$0gDy8u6" role="3cqZAp">
-                            <node concept="37vLTI" id="6vw$0gDy8u7" role="3clFbG">
-                              <node concept="3K4zz7" id="6vw$0gDy8u8" role="37vLTx">
-                                <node concept="10Nm6u" id="6vw$0gDy8u9" role="3K4E3e" />
-                                <node concept="2OqwBi" id="6vw$0gDy8ua" role="3K4GZi">
-                                  <node concept="37vLTw" id="6vw$0gDy8Sx" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
-                                  </node>
-                                  <node concept="2OwXpG" id="6vw$0gDy8uc" role="2OqNvi">
-                                    <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
+                            <node concept="2OqwBi" id="6vw$0gDy8ug" role="3clFbG">
+                              <node concept="37vLTw" id="6vw$0gDy8uh" role="2Oq$k0">
+                                <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                              </node>
+                              <node concept="liA8E" id="7LZDtvgK8U1" role="2OqNvi">
+                                <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                                <node concept="3K4zz7" id="6vw$0gDy8u8" role="37wK5m">
+                                  <node concept="10Nm6u" id="6vw$0gDy8u9" role="3K4E3e" />
+                                  <node concept="2OqwBi" id="6vw$0gDy8ua" role="3K4GZi">
+                                    <node concept="37vLTw" id="6vw$0gDy8Sx" role="2Oq$k0">
+                                      <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
+                                    </node>
+                                    <node concept="liA8E" id="7LZDtvhoNpY" role="2OqNvi">
+                                      <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                                    </node>
                                   </node>
-                                </node>
-                                <node concept="3clFbC" id="6vw$0gDy8ud" role="3K4Cdx">
-                                  <node concept="10Nm6u" id="6vw$0gDy8ue" role="3uHU7w" />
-                                  <node concept="37vLTw" id="6vw$0gDy9hC" role="3uHU7B">
-                                    <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
+                                  <node concept="3clFbC" id="6vw$0gDy8ud" role="3K4Cdx">
+                                    <node concept="10Nm6u" id="6vw$0gDy8ue" role="3uHU7w" />
+                                    <node concept="37vLTw" id="6vw$0gDy9hC" role="3uHU7B">
+                                      <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
+                                    </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="2OqwBi" id="6vw$0gDy8ug" role="37vLTJ">
-                                <node concept="37vLTw" id="6vw$0gDy8uh" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                </node>
-                                <node concept="2OwXpG" id="6vw$0gDy8ui" role="2OqNvi">
-                                  <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
-                                </node>
-                              </node>
                             </node>
                           </node>
                         </node>
@@ -14052,8 +14478,8 @@
                                       <node concept="37vLTw" id="6vw$0gDwcP5" role="2Oq$k0">
                                         <ref role="3cqZAo" node="6vw$0gDuVWW" resolve="matcherVat" />
                                       </node>
-                                      <node concept="2OwXpG" id="6vw$0gDwdEo" role="2OqNvi">
-                                        <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                                      <node concept="liA8E" id="7LZDtvhozPW" role="2OqNvi">
+                                        <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                                       </node>
                                     </node>
                                   </node>
@@ -14070,8 +14496,8 @@
                                   <node concept="37vLTw" id="6vw$0gDwfm2" role="2Oq$k0">
                                     <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
                                   </node>
-                                  <node concept="2OwXpG" id="6vw$0gDwfGs" role="2OqNvi">
-                                    <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+                                  <node concept="liA8E" id="7LZDtvho$vC" role="2OqNvi">
+                                    <ref role="37wK5l" to="pbu6:7LZDtvhogKJ" resolve="getValue" />
                                   </node>
                                 </node>
                               </node>
@@ -14080,16 +14506,14 @@
                             <node concept="3clFbJ" id="5Pgo_AS7cO5" role="3cqZAp">
                               <node concept="3clFbS" id="5Pgo_AS7cO7" role="3clFbx">
                                 <node concept="3clFbF" id="5Pgo_AS7eGv" role="3cqZAp">
-                                  <node concept="37vLTI" id="5Pgo_AS7fH2" role="3clFbG">
-                                    <node concept="3clFbT" id="5Pgo_AS7fIp" role="37vLTx">
-                                      <property role="3clFbU" value="true" />
+                                  <node concept="2OqwBi" id="5Pgo_AS7eOC" role="3clFbG">
+                                    <node concept="37vLTw" id="5Pgo_AS7eGt" role="2Oq$k0">
+                                      <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                                     </node>
-                                    <node concept="2OqwBi" id="5Pgo_AS7eOC" role="37vLTJ">
-                                      <node concept="37vLTw" id="5Pgo_AS7eGt" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                      </node>
-                                      <node concept="2OwXpG" id="5Pgo_AS7fiM" role="2OqNvi">
-                                        <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
+                                    <node concept="liA8E" id="7LZDtvgKc0k" role="2OqNvi">
+                                      <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                                      <node concept="3clFbT" id="7LZDtvgKdga" role="37wK5m">
+                                        <property role="3clFbU" value="true" />
                                       </node>
                                     </node>
                                   </node>
@@ -14109,31 +14533,25 @@
                               <node concept="9aQIb" id="5Pgo_AS7g5E" role="9aQIa">
                                 <node concept="3clFbS" id="5Pgo_AS7g5F" role="9aQI4">
                                   <node concept="3clFbF" id="5Pgo_AS7gUv" role="3cqZAp">
-                                    <node concept="37vLTI" id="5Pgo_AS7i1R" role="3clFbG">
-                                      <node concept="3clFbT" id="5Pgo_AS7i3e" role="37vLTx">
-                                        <property role="3clFbU" value="false" />
+                                    <node concept="2OqwBi" id="5Pgo_AS7h4z" role="3clFbG">
+                                      <node concept="37vLTw" id="5Pgo_AS7gUu" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                                       </node>
-                                      <node concept="2OqwBi" id="5Pgo_AS7h4z" role="37vLTJ">
-                                        <node concept="37vLTw" id="5Pgo_AS7gUu" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                        </node>
-                                        <node concept="2OwXpG" id="5Pgo_AS7hcL" role="2OqNvi">
-                                          <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                                        </node>
+                                      <node concept="liA8E" id="7LZDtvgKfkh" role="2OqNvi">
+                                        <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                                        <node concept="3clFbT" id="7LZDtvgKfWg" role="37wK5m" />
                                       </node>
                                     </node>
                                   </node>
                                   <node concept="3clFbF" id="5Pgo_AS7iKE" role="3cqZAp">
-                                    <node concept="37vLTI" id="5Pgo_AS7jzW" role="3clFbG">
-                                      <node concept="37vLTw" id="5Pgo_AS7jVC" role="37vLTx">
-                                        <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
+                                    <node concept="2OqwBi" id="5Pgo_AS7iSZ" role="3clFbG">
+                                      <node concept="37vLTw" id="5Pgo_AS7iKC" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                                       </node>
-                                      <node concept="2OqwBi" id="5Pgo_AS7iSZ" role="37vLTJ">
-                                        <node concept="37vLTw" id="5Pgo_AS7iKC" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                        </node>
-                                        <node concept="2OwXpG" id="5Pgo_AS7j1d" role="2OqNvi">
-                                          <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                                      <node concept="liA8E" id="7LZDtvgKigd" role="2OqNvi">
+                                        <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                                        <node concept="37vLTw" id="7LZDtvgKiSW" role="37wK5m">
+                                          <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
                                         </node>
                                       </node>
                                     </node>
@@ -14141,49 +14559,47 @@
                                   <node concept="3clFbJ" id="2Q9SoGTc87g" role="3cqZAp">
                                     <node concept="3clFbS" id="2Q9SoGTc87i" role="3clFbx">
                                       <node concept="3clFbF" id="2Q9SoGTc9zr" role="3cqZAp">
-                                        <node concept="37vLTI" id="2Q9SoGTcbWi" role="3clFbG">
-                                          <node concept="2ShNRf" id="2Q9SoGTcceg" role="37vLTx">
-                                            <node concept="1pGfFk" id="2Q9SoGTcDI8" role="2ShVmc">
-                                              <ref role="37wK5l" to="oq0c:4AahbtULJ$q" resolve="MessageValue" />
-                                              <node concept="BsUDl" id="2Q9SoGTcE4L" role="37wK5m">
-                                                <ref role="37wK5l" node="5Pgo_AS7m_e" resolve="formatErrorMessage" />
-                                                <node concept="37vLTw" id="2Q9SoGTcEr$" role="37wK5m">
-                                                  <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
-                                                </node>
-                                                <node concept="37vLTw" id="2Q9SoGTcES$" role="37wK5m">
-                                                  <ref role="3cqZAo" node="6vw$0gDw5_l" resolve="matcher" />
+                                        <node concept="2OqwBi" id="2Q9SoGTca13" role="3clFbG">
+                                          <node concept="37vLTw" id="2Q9SoGTc9zp" role="2Oq$k0">
+                                            <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                                          </node>
+                                          <node concept="liA8E" id="7LZDtvgKkYY" role="2OqNvi">
+                                            <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                                            <node concept="2ShNRf" id="2Q9SoGTcceg" role="37wK5m">
+                                              <node concept="1pGfFk" id="2Q9SoGTcDI8" role="2ShVmc">
+                                                <ref role="37wK5l" to="oq0c:4AahbtULJ$q" resolve="MessageValue" />
+                                                <node concept="BsUDl" id="2Q9SoGTcE4L" role="37wK5m">
+                                                  <ref role="37wK5l" node="5Pgo_AS7m_e" resolve="formatErrorMessage" />
+                                                  <node concept="37vLTw" id="2Q9SoGTcEr$" role="37wK5m">
+                                                    <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
+                                                  </node>
+                                                  <node concept="37vLTw" id="2Q9SoGTcES$" role="37wK5m">
+                                                    <ref role="3cqZAo" node="6vw$0gDw5_l" resolve="matcher" />
+                                                  </node>
                                                 </node>
-                                              </node>
-                                              <node concept="2OqwBi" id="2Q9SoGTcIR4" role="37wK5m">
-                                                <node concept="2OqwBi" id="2Q9SoGTcHOK" role="2Oq$k0">
-                                                  <node concept="1eOMI4" id="2Q9SoGTcFyU" role="2Oq$k0">
-                                                    <node concept="10QFUN" id="2Q9SoGTcFyR" role="1eOMHV">
-                                                      <node concept="3uibUv" id="2Q9SoGTcFV$" role="10QFUM">
-                                                        <ref role="3uigEE" to="vzlu:5Pgo_AS6VnV" resolve="ConstraintFailed" />
-                                                      </node>
-                                                      <node concept="37vLTw" id="2Q9SoGTcHl4" role="10QFUP">
-                                                        <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
+                                                <node concept="2OqwBi" id="2Q9SoGTcIR4" role="37wK5m">
+                                                  <node concept="2OqwBi" id="2Q9SoGTcHOK" role="2Oq$k0">
+                                                    <node concept="1eOMI4" id="2Q9SoGTcFyU" role="2Oq$k0">
+                                                      <node concept="10QFUN" id="2Q9SoGTcFyR" role="1eOMHV">
+                                                        <node concept="3uibUv" id="2Q9SoGTcFV$" role="10QFUM">
+                                                          <ref role="3uigEE" to="vzlu:5Pgo_AS6VnV" resolve="ConstraintFailed" />
+                                                        </node>
+                                                        <node concept="37vLTw" id="2Q9SoGTcHl4" role="10QFUP">
+                                                          <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
+                                                        </node>
                                                       </node>
                                                     </node>
+                                                    <node concept="2OwXpG" id="2Q9SoGTcIl1" role="2OqNvi">
+                                                      <ref role="2Oxat5" to="vzlu:5Pgo_ASlIQD" resolve="msg" />
+                                                    </node>
                                                   </node>
-                                                  <node concept="2OwXpG" id="2Q9SoGTcIl1" role="2OqNvi">
-                                                    <ref role="2Oxat5" to="vzlu:5Pgo_ASlIQD" resolve="msg" />
+                                                  <node concept="liA8E" id="2Q9SoGTcJoG" role="2OqNvi">
+                                                    <ref role="37wK5l" to="oq0c:4AahbtURenE" resolve="getSource" />
                                                   </node>
                                                 </node>
-                                                <node concept="liA8E" id="2Q9SoGTcJoG" role="2OqNvi">
-                                                  <ref role="37wK5l" to="oq0c:4AahbtURenE" resolve="getSource" />
-                                                </node>
                                               </node>
                                             </node>
                                           </node>
-                                          <node concept="2OqwBi" id="2Q9SoGTca13" role="37vLTJ">
-                                            <node concept="37vLTw" id="2Q9SoGTc9zp" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                            </node>
-                                            <node concept="2OwXpG" id="2Q9SoGTca$w" role="2OqNvi">
-                                              <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                                            </node>
-                                          </node>
                                         </node>
                                       </node>
                                     </node>
@@ -14198,25 +14614,23 @@
                                     <node concept="9aQIb" id="2Q9SoGTcKc4" role="9aQIa">
                                       <node concept="3clFbS" id="2Q9SoGTcKc5" role="9aQI4">
                                         <node concept="3clFbF" id="5Pgo_AS7kiX" role="3cqZAp">
-                                          <node concept="37vLTI" id="5Pgo_AS7lJY" role="3clFbG">
-                                            <node concept="2OqwBi" id="5Pgo_AS7kru" role="37vLTJ">
-                                              <node concept="37vLTw" id="5Pgo_AS7kiV" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                              </node>
-                                              <node concept="2OwXpG" id="5Pgo_AS7kUw" role="2OqNvi">
-                                                <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                                              </node>
+                                          <node concept="2OqwBi" id="5Pgo_AS7kru" role="3clFbG">
+                                            <node concept="37vLTw" id="5Pgo_AS7kiV" role="2Oq$k0">
+                                              <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                                             </node>
-                                            <node concept="2ShNRf" id="6C0OSEaHFUJ" role="37vLTx">
-                                              <node concept="1pGfFk" id="6C0OSEaHGIy" role="2ShVmc">
-                                                <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                                                <node concept="BsUDl" id="5Pgo_AS7sYK" role="37wK5m">
-                                                  <ref role="37wK5l" node="5Pgo_AS7m_e" resolve="formatErrorMessage" />
-                                                  <node concept="37vLTw" id="5Pgo_AS7tmT" role="37wK5m">
-                                                    <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
-                                                  </node>
-                                                  <node concept="37vLTw" id="5Pgo_AS7vkf" role="37wK5m">
-                                                    <ref role="3cqZAo" node="6vw$0gDw5_l" resolve="matcher" />
+                                            <node concept="liA8E" id="7LZDtvgKpfk" role="2OqNvi">
+                                              <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                                              <node concept="2ShNRf" id="6C0OSEaHFUJ" role="37wK5m">
+                                                <node concept="1pGfFk" id="6C0OSEaHGIy" role="2ShVmc">
+                                                  <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                                                  <node concept="BsUDl" id="5Pgo_AS7sYK" role="37wK5m">
+                                                    <ref role="37wK5l" node="5Pgo_AS7m_e" resolve="formatErrorMessage" />
+                                                    <node concept="37vLTw" id="5Pgo_AS7tmT" role="37wK5m">
+                                                      <ref role="3cqZAo" node="6vw$0gDvv6e" resolve="value" />
+                                                    </node>
+                                                    <node concept="37vLTw" id="5Pgo_AS7vkf" role="37wK5m">
+                                                      <ref role="3cqZAo" node="6vw$0gDw5_l" resolve="matcher" />
+                                                    </node>
                                                   </node>
                                                 </node>
                                               </node>
@@ -14227,21 +14641,19 @@
                                     </node>
                                   </node>
                                   <node concept="3clFbF" id="6vw$0gDy1AS" role="3cqZAp">
-                                    <node concept="37vLTI" id="6vw$0gDy2Db" role="3clFbG">
-                                      <node concept="2OqwBi" id="6vw$0gDy37U" role="37vLTx">
-                                        <node concept="37vLTw" id="6vw$0gDy30a" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
-                                        </node>
-                                        <node concept="2OwXpG" id="6vw$0gDy3IU" role="2OqNvi">
-                                          <ref role="2Oxat5" to="pbu6:7lHetQyBz4T" resolve="trace" />
-                                        </node>
+                                    <node concept="2OqwBi" id="6vw$0gDy1IX" role="3clFbG">
+                                      <node concept="37vLTw" id="6vw$0gDy1AQ" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                                       </node>
-                                      <node concept="2OqwBi" id="6vw$0gDy1IX" role="37vLTJ">
-                                        <node concept="37vLTw" id="6vw$0gDy1AQ" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                                        </node>
-                                        <node concept="2OwXpG" id="6vw$0gDy1Vq" role="2OqNvi">
-                                          <ref role="2Oxat5" node="7lHetQyBMcY" resolve="trace" />
+                                      <node concept="liA8E" id="7LZDtvgKs5s" role="2OqNvi">
+                                        <ref role="37wK5l" node="7LZDtvgGM7z" resolve="setTrace" />
+                                        <node concept="2OqwBi" id="6vw$0gDy37U" role="37wK5m">
+                                          <node concept="37vLTw" id="6vw$0gDy30a" role="2Oq$k0">
+                                            <ref role="3cqZAo" node="6vw$0gDvHIm" resolve="valueVat" />
+                                          </node>
+                                          <node concept="liA8E" id="7LZDtvhoO3a" role="2OqNvi">
+                                            <ref role="37wK5l" to="pbu6:7LZDtvhogKU" resolve="getTrace" />
+                                          </node>
                                         </node>
                                       </node>
                                     </node>
@@ -14264,50 +14676,42 @@
           <node concept="9aQIb" id="5Pgo_AS7DRv" role="9aQIa">
             <node concept="3clFbS" id="5Pgo_AS7DRw" role="9aQI4">
               <node concept="3clFbF" id="5Pgo_AS7Eru" role="3cqZAp">
-                <node concept="37vLTI" id="5Pgo_AS7Fqn" role="3clFbG">
-                  <node concept="3clFbT" id="5Pgo_AS7FrI" role="37vLTx">
-                    <property role="3clFbU" value="false" />
+                <node concept="2OqwBi" id="5Pgo_AS7EzB" role="3clFbG">
+                  <node concept="37vLTw" id="5Pgo_AS7Ert" role="2Oq$k0">
+                    <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                   </node>
-                  <node concept="2OqwBi" id="5Pgo_AS7EzB" role="37vLTJ">
-                    <node concept="37vLTw" id="5Pgo_AS7Ert" role="2Oq$k0">
-                      <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="5Pgo_AS7F07" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyOIfW" resolve="ok" />
-                    </node>
+                  <node concept="liA8E" id="7LZDtvgLjVY" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgGFoC" resolve="setOk" />
+                    <node concept="3clFbT" id="7LZDtvgLkYp" role="37wK5m" />
                   </node>
                 </node>
               </node>
               <node concept="3clFbF" id="5Pgo_AS7FLx" role="3cqZAp">
-                <node concept="37vLTI" id="5Pgo_AS7H4S" role="3clFbG">
-                  <node concept="Xl_RD" id="5Pgo_AS7H5Z" role="37vLTx">
-                    <property role="Xl_RC" value="&lt;structurally invalid&gt;" />
+                <node concept="2OqwBi" id="5Pgo_AS7FTQ" role="3clFbG">
+                  <node concept="37vLTw" id="5Pgo_AS7FLv" role="2Oq$k0">
+                    <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
                   </node>
-                  <node concept="2OqwBi" id="5Pgo_AS7FTQ" role="37vLTJ">
-                    <node concept="37vLTw" id="5Pgo_AS7FLv" role="2Oq$k0">
-                      <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="5Pgo_AS7K2M" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyOIfp" resolve="actual" />
+                  <node concept="liA8E" id="7LZDtvgLnKq" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgG_$3" resolve="setActual" />
+                    <node concept="Xl_RD" id="5Pgo_AS7H5Z" role="37wK5m">
+                      <property role="Xl_RC" value="&lt;structurally invalid&gt;" />
                     </node>
                   </node>
                 </node>
               </node>
               <node concept="3clFbF" id="5Pgo_AS7KoM" role="3cqZAp">
-                <node concept="37vLTI" id="5Pgo_AS7Mfa" role="3clFbG">
-                  <node concept="2OqwBi" id="5Pgo_AS7Kxj" role="37vLTJ">
-                    <node concept="37vLTw" id="5Pgo_AS7KoK" role="2Oq$k0">
-                      <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-                    </node>
-                    <node concept="2OwXpG" id="5Pgo_AS7L5C" role="2OqNvi">
-                      <ref role="2Oxat5" node="ub9nkyQiZj" resolve="errorMessage" />
-                    </node>
-                  </node>
-                  <node concept="2ShNRf" id="6C0OSEaI4qR" role="37vLTx">
-                    <node concept="1pGfFk" id="6C0OSEaI5kZ" role="2ShVmc">
-                      <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
-                      <node concept="Xl_RD" id="5Pgo_AS7Mgh" role="37wK5m">
-                        <property role="Xl_RC" value="assertion node is structurally invalid" />
+                <node concept="2OqwBi" id="5Pgo_AS7Kxj" role="3clFbG">
+                  <node concept="37vLTw" id="5Pgo_AS7KoK" role="2Oq$k0">
+                    <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
+                  </node>
+                  <node concept="liA8E" id="7LZDtvgLtkJ" role="2OqNvi">
+                    <ref role="37wK5l" node="7LZDtvgGLQm" resolve="setErrorMessage" />
+                    <node concept="2ShNRf" id="6C0OSEaI4qR" role="37wK5m">
+                      <node concept="1pGfFk" id="6C0OSEaI5kZ" role="2ShVmc">
+                        <ref role="37wK5l" to="oq0c:4AahbtULK5l" resolve="MessageValue" />
+                        <node concept="Xl_RD" id="5Pgo_AS7Mgh" role="37wK5m">
+                          <property role="Xl_RC" value="assertion node is structurally invalid" />
+                        </node>
                       </node>
                     </node>
                   </node>
@@ -14327,21 +14731,19 @@
           </node>
         </node>
         <node concept="3clFbF" id="5Pgo_AS66W0" role="3cqZAp">
-          <node concept="37vLTI" id="5Pgo_AS66W1" role="3clFbG">
-            <node concept="3cpWsd" id="5Pgo_AS66W2" role="37vLTx">
-              <node concept="37vLTw" id="5Pgo_AS66W3" role="3uHU7w">
-                <ref role="3cqZAo" node="5Pgo_AS66Tt" resolve="begin" />
-              </node>
-              <node concept="37vLTw" id="5Pgo_AS66W4" role="3uHU7B">
-                <ref role="3cqZAo" node="5Pgo_AS66VX" resolve="end" />
-              </node>
+          <node concept="2OqwBi" id="5Pgo_AS66W5" role="3clFbG">
+            <node concept="37vLTw" id="5Pgo_AS66W6" role="2Oq$k0">
+              <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
             </node>
-            <node concept="2OqwBi" id="5Pgo_AS66W5" role="37vLTJ">
-              <node concept="37vLTw" id="5Pgo_AS66W6" role="2Oq$k0">
-                <ref role="3cqZAo" node="5Pgo_AS66To" resolve="result" />
-              </node>
-              <node concept="2OwXpG" id="5Pgo_AS66W7" role="2OqNvi">
-                <ref role="2Oxat5" node="ub9nkyOIgM" resolve="time" />
+            <node concept="liA8E" id="7LZDtvgLuJp" role="2OqNvi">
+              <ref role="37wK5l" node="7LZDtvgGLwA" resolve="setTime" />
+              <node concept="3cpWsd" id="5Pgo_AS66W2" role="37wK5m">
+                <node concept="37vLTw" id="5Pgo_AS66W3" role="3uHU7w">
+                  <ref role="3cqZAo" node="5Pgo_AS66Tt" resolve="begin" />
+                </node>
+                <node concept="37vLTw" id="5Pgo_AS66W4" role="3uHU7B">
+                  <ref role="3cqZAo" node="5Pgo_AS66VX" resolve="end" />
+                </node>
               </node>
             </node>
           </node>
@@ -14974,6 +15376,7 @@
     </node>
     <node concept="13i0hz" id="1IW19eYFapX" role="13h7CS">
       <property role="TrG5h" value="status" />
+      <property role="13i0it" value="true" />
       <node concept="3Tm1VV" id="1IW19eYFapY" role="1B3o_S" />
       <node concept="17QB3L" id="1IW19eYFapZ" role="3clF45" />
       <node concept="3clFbS" id="1IW19eYFaq0" role="3clF47">
@@ -15031,8 +15434,8 @@
                     </node>
                   </node>
                   <node concept="2ZW3vV" id="1IW19eYFaqu" role="3clFbw">
-                    <node concept="3uibUv" id="1IW19eYFaqv" role="2ZW6by">
-                      <ref role="3uigEE" node="ub9nkyOIeW" resolve="EvalResult" />
+                    <node concept="3uibUv" id="7LZDtvgPpaN" role="2ZW6by">
+                      <ref role="3uigEE" node="7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                     <node concept="37vLTw" id="1IW19eYFaqw" role="2ZW6bz">
                       <ref role="3cqZAo" node="1IW19eYFaqf" resolve="r" />
@@ -15086,5 +15489,171 @@
       </node>
     </node>
   </node>
+  <node concept="3HP615" id="7LZDtvgGNLS">
+    <property role="TrG5h" value="IEvalResult" />
+    <node concept="3clFb_" id="7LZDtvgGPnG" role="jymVt">
+      <property role="TrG5h" value="getActual" />
+      <node concept="3uibUv" id="7LZDtvgGPnH" role="3clF45">
+        <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGPnI" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPnJ" role="3clF47" />
+      <node concept="2AHcQZ" id="7LZDtvgGZSC" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPnP" role="jymVt">
+      <property role="TrG5h" value="setActual" />
+      <node concept="3cqZAl" id="7LZDtvgGPnQ" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPnR" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPnS" role="3clF47" />
+      <node concept="37vLTG" id="7LZDtvgGPnZ" role="3clF46">
+        <property role="TrG5h" value="actual" />
+        <node concept="3uibUv" id="7LZDtvgGPo0" role="1tU5fm">
+          <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgGZZ$" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPo2" role="jymVt">
+      <property role="TrG5h" value="setOk" />
+      <node concept="3clFbS" id="7LZDtvgGPo3" role="3clF47" />
+      <node concept="3Tm1VV" id="7LZDtvgGPoa" role="1B3o_S" />
+      <node concept="3cqZAl" id="7LZDtvgGPob" role="3clF45" />
+      <node concept="37vLTG" id="7LZDtvgGPoc" role="3clF46">
+        <property role="TrG5h" value="ok" />
+        <node concept="10P_77" id="7LZDtvgGPod" role="1tU5fm" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPof" role="jymVt">
+      <property role="TrG5h" value="getTime" />
+      <node concept="3cpWsb" id="7LZDtvgGPog" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPoh" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPoi" role="3clF47" />
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPoo" role="jymVt">
+      <property role="TrG5h" value="setTime" />
+      <node concept="3cqZAl" id="7LZDtvgGPop" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPoq" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPor" role="3clF47" />
+      <node concept="37vLTG" id="7LZDtvgGPoy" role="3clF46">
+        <property role="TrG5h" value="time" />
+        <node concept="3cpWsb" id="7LZDtvgGPoz" role="1tU5fm" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="7LZDtvgPN$2" role="jymVt" />
+    <node concept="3clFb_" id="7LZDtvgPNBR" role="jymVt">
+      <property role="2aFKle" value="false" />
+      <property role="TrG5h" value="getErrorMessage" />
+      <property role="1EzhhJ" value="true" />
+      <node concept="3Tm1VV" id="7LZDtvgPNBT" role="1B3o_S" />
+      <node concept="3uibUv" id="7LZDtvgPNBU" role="3clF45">
+        <ref role="3uigEE" to="oq0c:4AahbtULJtR" resolve="MessageValue" />
+      </node>
+      <node concept="3clFbS" id="7LZDtvgPNBV" role="3clF47" />
+      <node concept="2AHcQZ" id="7LZDtvgPNUC" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPo_" role="jymVt">
+      <property role="TrG5h" value="setErrorMessage" />
+      <node concept="3cqZAl" id="7LZDtvgGPoA" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPoB" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPoC" role="3clF47" />
+      <node concept="37vLTG" id="7LZDtvgGPoJ" role="3clF46">
+        <property role="TrG5h" value="errorMessage" />
+        <node concept="3uibUv" id="7LZDtvgGPoK" role="1tU5fm">
+          <ref role="3uigEE" to="oq0c:4AahbtULJtR" resolve="MessageValue" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgH06G" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPoM" role="jymVt">
+      <property role="TrG5h" value="getTrace" />
+      <node concept="3uibUv" id="7LZDtvgGPoN" role="3clF45">
+        <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGPoO" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPoP" role="3clF47" />
+      <node concept="2AHcQZ" id="7LZDtvgH0AO" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPoV" role="jymVt">
+      <property role="TrG5h" value="setTrace" />
+      <node concept="3cqZAl" id="7LZDtvgGPoW" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPoX" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPoY" role="3clF47" />
+      <node concept="37vLTG" id="7LZDtvgGPp5" role="3clF46">
+        <property role="TrG5h" value="trace" />
+        <node concept="3uibUv" id="7LZDtvgGPp6" role="1tU5fm">
+          <ref role="3uigEE" to="2ahs:7cNsFS_gTK8" resolve="ComputationTrace" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgH0I0" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPp8" role="jymVt">
+      <property role="TrG5h" value="getException" />
+      <node concept="3uibUv" id="7LZDtvgGPp9" role="3clF45">
+        <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGPpa" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPpb" role="3clF47" />
+      <node concept="2AHcQZ" id="7LZDtvgH1e2" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPph" role="jymVt">
+      <property role="TrG5h" value="setException" />
+      <node concept="3cqZAl" id="7LZDtvgGPpi" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPpj" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPpk" role="3clF47" />
+      <node concept="37vLTG" id="7LZDtvgGPpr" role="3clF46">
+        <property role="TrG5h" value="exception" />
+        <node concept="3uibUv" id="7LZDtvgGPps" role="1tU5fm">
+          <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgH1ln" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~NotNull" resolve="NotNull" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPpu" role="jymVt">
+      <property role="TrG5h" value="getCoverage" />
+      <node concept="3uibUv" id="7LZDtvgGPpv" role="3clF45">
+        <ref role="3uigEE" to="2ahs:4_qY3E5ifTh" resolve="ICoverageAnalyzer" />
+      </node>
+      <node concept="3Tm1VV" id="7LZDtvgGPpw" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPpx" role="3clF47" />
+      <node concept="2AHcQZ" id="7LZDtvgGZEC" role="2AJF6D">
+        <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="7LZDtvgGPpB" role="jymVt">
+      <property role="TrG5h" value="setCoverage" />
+      <node concept="3cqZAl" id="7LZDtvgGPpC" role="3clF45" />
+      <node concept="3Tm1VV" id="7LZDtvgGPpD" role="1B3o_S" />
+      <node concept="3clFbS" id="7LZDtvgGPpE" role="3clF47" />
+      <node concept="37vLTG" id="7LZDtvgGPpL" role="3clF46">
+        <property role="TrG5h" value="coverage" />
+        <node concept="3uibUv" id="7LZDtvgGPpM" role="1tU5fm">
+          <ref role="3uigEE" to="2ahs:4_qY3E5ifTh" resolve="ICoverageAnalyzer" />
+        </node>
+        <node concept="2AHcQZ" id="7LZDtvgGZLy" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
+      </node>
+    </node>
+    <node concept="3Tm1VV" id="7LZDtvgGNLT" role="1B3o_S" />
+    <node concept="3uibUv" id="7LZDtvgGNMh" role="3HQHJm">
+      <ref role="3uigEE" to="gdgh:5zG5$Lyex1G" resolve="IResult" />
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/constraints.mps
index 0cee80e48b..3e8758180a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/constraints.mps
@@ -60,7 +60,7 @@
       <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
         <child id="1068581517676" name="expression" index="3cqZAk" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -87,6 +87,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -127,7 +128,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -135,7 +136,6 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
     </language>
@@ -181,7 +181,7 @@
                           <node concept="10Nm6u" id="1F1F0IUZAJD" role="3uHU7w" />
                           <node concept="2OqwBi" id="1F1F0IUZAJE" role="3uHU7B">
                             <node concept="37vLTw" id="1F1F0IUZAJF" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1F1F0IUZAJH" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817fQ" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="1F1F0IUZAJG" role="2OqNvi">
                               <ref role="3Tt5mk" to="4kwy:cJpacq40jC" resolve="optionalName" />
@@ -190,9 +190,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZAJH" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fQ" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZAJI" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fR" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -440,14 +440,14 @@
                             <property role="3cmrfH" value="0" />
                           </node>
                           <node concept="37vLTw" id="GEat54MAOd" role="1LFl5Q">
-                            <ref role="3cqZAo" node="GEat54MAxZ" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817fS" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="GEat54MAxZ" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817fS" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="GEat54MAy0" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817fT" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/editor.mps
index 3002af269a..ce7a7d3587 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/editor.mps
@@ -130,7 +130,7 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -159,7 +159,7 @@
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1165420413719" name="jetbrains.mps.lang.editor.structure.CellMenuPart_Generic_Group" flags="ng" index="1ou48o">
@@ -192,7 +192,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY">
@@ -243,9 +243,6 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
-      <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
-        <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
-      </concept>
       <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
         <child id="1145553007750" name="creator" index="2ShVmc" />
       </concept>
@@ -337,7 +334,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -360,7 +357,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -388,6 +385,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -409,7 +407,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G" />
@@ -502,7 +500,7 @@
       <concept id="4032373061957735279" name="de.slisson.mps.tables.structure.HeaderQuery_InsertNew" flags="ig" index="10boU0" />
       <concept id="1118639624532961312" name="de.slisson.mps.tables.structure.CanCreate_Rows" flags="ng" index="34s9NJ" />
       <concept id="4032373061970539014" name="de.slisson.mps.tables.structure.QueryParameter_EditorContext" flags="ng" index="1frAZD" />
-      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ng" index="1g0I81">
+      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ngI" index="1g0I81">
         <child id="5662204344887343006" name="style" index="1geGt4" />
       </concept>
       <concept id="5662204344885763446" name="de.slisson.mps.tables.structure.TableStyle" flags="ng" index="1g0IQG">
@@ -587,7 +585,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -630,7 +628,6 @@
       <concept id="1227022196108" name="jetbrains.mps.baseLanguage.collections.structure.RemoveAtElementOperation" flags="nn" index="2KedMh">
         <child id="1227022274197" name="index" index="2KewY8" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
@@ -882,7 +879,7 @@
                   <node concept="3cpWsn" id="7aipPVpIgCb" role="3cpWs9">
                     <property role="TrG5h" value="res" />
                     <node concept="3uibUv" id="7aipPVpIgCc" role="1tU5fm">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                     <node concept="1eOMI4" id="7aipPVpIgCd" role="33vP2m">
                       <node concept="10QFUN" id="7aipPVpIgCe" role="1eOMHV">
@@ -893,7 +890,7 @@
                           </node>
                         </node>
                         <node concept="3uibUv" id="7aipPVpIgCi" role="10QFUM">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                         </node>
                       </node>
                     </node>
@@ -1462,8 +1459,8 @@
             <node concept="37vLTw" id="4_qY3E51Kqj" role="2Oq$k0">
               <ref role="3cqZAo" node="4_qY3E51KIr" resolve="res" />
             </node>
-            <node concept="2OwXpG" id="4_qY3E51Kqk" role="2OqNvi">
-              <ref role="2Oxat5" to="xk6s:ub9nkyOIfW" resolve="ok" />
+            <node concept="liA8E" id="7LZDtvgOkp3" role="2OqNvi">
+              <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
             </node>
           </node>
         </node>
@@ -1480,8 +1477,8 @@
               <node concept="37vLTw" id="4_qY3E51Kqr" role="2Oq$k0">
                 <ref role="3cqZAo" node="4_qY3E51KIr" resolve="res" />
               </node>
-              <node concept="2OwXpG" id="4_qY3E51Kqs" role="2OqNvi">
-                <ref role="2Oxat5" to="xk6s:ub9nkyOIfW" resolve="ok" />
+              <node concept="liA8E" id="7LZDtvgOkzj" role="2OqNvi">
+                <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
               </node>
             </node>
           </node>
@@ -1493,7 +1490,7 @@
       <node concept="37vLTG" id="4_qY3E51KIr" role="3clF46">
         <property role="TrG5h" value="res" />
         <node concept="3uibUv" id="4_qY3E51KIq" role="1tU5fm">
-          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
         </node>
       </node>
     </node>
@@ -1822,7 +1819,7 @@
                   <node concept="3cpWsn" id="4_qY3E51XUL" role="3cpWs9">
                     <property role="TrG5h" value="res" />
                     <node concept="3uibUv" id="4_qY3E51XUM" role="1tU5fm">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                     <node concept="1eOMI4" id="4_qY3E51XUN" role="33vP2m">
                       <node concept="10QFUN" id="4_qY3E51XUO" role="1eOMHV">
@@ -1833,7 +1830,7 @@
                           </node>
                         </node>
                         <node concept="3uibUv" id="4_qY3E51XUS" role="10QFUM">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                         </node>
                       </node>
                     </node>
@@ -1960,9 +1957,9 @@
               <node concept="3clFbJ" id="18$bUx5wWne" role="3cqZAp">
                 <node concept="3clFbS" id="18$bUx5wWng" role="3clFbx">
                   <node concept="3cpWs6" id="18$bUx5wWDE" role="3cqZAp">
-                    <node concept="10M0yZ" id="18$bUx5wWN$" role="3cqZAk">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5w_m4" resolve="COVERED_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY1nI" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMz" resolve="COVERED_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -1975,9 +1972,9 @@
                   </node>
                   <node concept="liA8E" id="18$bUx5wTBb" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="18$bUx5wVwP" role="37wK5m">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
+                    <node concept="10M0yZ" id="7LZDtvhY1O8" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -1985,9 +1982,9 @@
               <node concept="3clFbJ" id="18$bUx5wX9c" role="3cqZAp">
                 <node concept="3clFbS" id="18$bUx5wX9d" role="3clFbx">
                   <node concept="3cpWs6" id="18$bUx5wX9e" role="3cqZAp">
-                    <node concept="10M0yZ" id="18$bUx5wX9f" role="3cqZAk">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wD$n" resolve="MISSING_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY2fn" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMM" resolve="MISSING_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2000,9 +1997,9 @@
                   </node>
                   <node concept="liA8E" id="18$bUx5wX9k" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="18$bUx5wX9l" role="37wK5m">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wd8G" resolve="MISSING" />
+                    <node concept="10M0yZ" id="7LZDtvhY2R8" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMm" resolve="MISSING" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2010,9 +2007,9 @@
               <node concept="3clFbJ" id="18$bUx5wXaE" role="3cqZAp">
                 <node concept="3clFbS" id="18$bUx5wXaF" role="3clFbx">
                   <node concept="3cpWs6" id="18$bUx5wXaG" role="3cqZAp">
-                    <node concept="10M0yZ" id="18$bUx5wXaH" role="3cqZAk">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wDQj" resolve="PARTIAL_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY3t_" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJO_" resolve="PARTIAL_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2025,9 +2022,9 @@
                   </node>
                   <node concept="liA8E" id="18$bUx5wXaM" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="18$bUx5wXaN" role="37wK5m">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wdqa" resolve="PARTIAL" />
+                    <node concept="10M0yZ" id="7LZDtvhY3fx" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMq" resolve="PARTIAL" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2534,9 +2531,9 @@
               <node concept="3clFbJ" id="3MHhZL0ul2l" role="3cqZAp">
                 <node concept="3clFbS" id="3MHhZL0ul2m" role="3clFbx">
                   <node concept="3cpWs6" id="3MHhZL0ul2n" role="3cqZAp">
-                    <node concept="10M0yZ" id="3MHhZL0ul2o" role="3cqZAk">
-                      <ref role="3cqZAo" to="pbu6:18$bUx5w_m4" resolve="COVERED_COLOR" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhY7Pa" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMz" resolve="COVERED_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2549,9 +2546,9 @@
                   </node>
                   <node concept="liA8E" id="3MHhZL0ul2t" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="3MHhZL0ul2u" role="37wK5m">
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhY7KT" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2559,9 +2556,9 @@
               <node concept="3clFbJ" id="3MHhZL0ul2v" role="3cqZAp">
                 <node concept="3clFbS" id="3MHhZL0ul2w" role="3clFbx">
                   <node concept="3cpWs6" id="3MHhZL0ul2x" role="3cqZAp">
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-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wD$n" resolve="MISSING_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY8w2" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMM" resolve="MISSING_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
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@@ -2574,9 +2571,9 @@
                   </node>
                   <node concept="liA8E" id="3MHhZL0ul2B" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="3MHhZL0ul2C" role="37wK5m">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wd8G" resolve="MISSING" />
+                    <node concept="10M0yZ" id="7LZDtvhY86h" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMm" resolve="MISSING" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
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@@ -2584,9 +2581,9 @@
               <node concept="3clFbJ" id="3MHhZL0ul2D" role="3cqZAp">
                 <node concept="3clFbS" id="3MHhZL0ul2E" role="3clFbx">
                   <node concept="3cpWs6" id="3MHhZL0ul2F" role="3cqZAp">
-                    <node concept="10M0yZ" id="3MHhZL0ul2G" role="3cqZAk">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wDQj" resolve="PARTIAL_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY8WA" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJO_" resolve="PARTIAL_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2599,9 +2596,9 @@
                   </node>
                   <node concept="liA8E" id="3MHhZL0ul2L" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="3MHhZL0ul2M" role="37wK5m">
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wdqa" resolve="PARTIAL" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhY8Iy" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMq" resolve="PARTIAL" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2726,7 +2723,7 @@
                   <node concept="3cpWsn" id="4e_7uAt7pbp" role="3cpWs9">
                     <property role="TrG5h" value="res" />
                     <node concept="3uibUv" id="4e_7uAt7pbq" role="1tU5fm">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                     <node concept="1eOMI4" id="4e_7uAt7pbr" role="33vP2m">
                       <node concept="10QFUN" id="4e_7uAt7pbs" role="1eOMHV">
@@ -2737,7 +2734,7 @@
                           </node>
                         </node>
                         <node concept="3uibUv" id="4e_7uAt7pbw" role="10QFUM">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                         </node>
                       </node>
                     </node>
@@ -2982,9 +2979,9 @@
               <node concept="3clFbJ" id="5IKJrJHPDoz" role="3cqZAp">
                 <node concept="3clFbS" id="5IKJrJHPDo$" role="3clFbx">
                   <node concept="3cpWs6" id="5IKJrJHPDo_" role="3cqZAp">
-                    <node concept="10M0yZ" id="5IKJrJHPDoA" role="3cqZAk">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5w_m4" resolve="COVERED_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY5Ez" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMz" resolve="COVERED_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -2997,9 +2994,9 @@
                   </node>
                   <node concept="liA8E" id="5IKJrJHPDoF" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="5IKJrJHPDoG" role="37wK5m">
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wb58" resolve="COVERED" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhY5dQ" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMi" resolve="COVERED" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -3007,9 +3004,9 @@
               <node concept="3clFbJ" id="5IKJrJHPDoH" role="3cqZAp">
                 <node concept="3clFbS" id="5IKJrJHPDoI" role="3clFbx">
                   <node concept="3cpWs6" id="5IKJrJHPDoJ" role="3cqZAp">
-                    <node concept="10M0yZ" id="5IKJrJHPDoK" role="3cqZAk">
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wD$n" resolve="MISSING_COLOR" />
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+                    <node concept="10M0yZ" id="7LZDtvhY6vg" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMM" resolve="MISSING_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -3022,9 +3019,9 @@
                   </node>
                   <node concept="liA8E" id="5IKJrJHPDoP" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="5IKJrJHPDoQ" role="37wK5m">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wd8G" resolve="MISSING" />
+                    <node concept="10M0yZ" id="7LZDtvhY65v" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMm" resolve="MISSING" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -3032,9 +3029,9 @@
               <node concept="3clFbJ" id="5IKJrJHPDoR" role="3cqZAp">
                 <node concept="3clFbS" id="5IKJrJHPDoS" role="3clFbx">
                   <node concept="3cpWs6" id="5IKJrJHPDoT" role="3cqZAp">
-                    <node concept="10M0yZ" id="5IKJrJHPDoU" role="3cqZAk">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wDQj" resolve="PARTIAL_COLOR" />
+                    <node concept="10M0yZ" id="7LZDtvhY6Vc" role="3cqZAk">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJO_" resolve="PARTIAL_COLOR" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -3047,9 +3044,9 @@
                   </node>
                   <node concept="liA8E" id="5IKJrJHPDoZ" role="2OqNvi">
                     <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
-                    <node concept="10M0yZ" id="5IKJrJHPDp0" role="37wK5m">
-                      <ref role="1PxDUh" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
-                      <ref role="3cqZAo" to="pbu6:18$bUx5wdqa" resolve="PARTIAL" />
+                    <node concept="10M0yZ" id="7LZDtvhY6zx" role="37wK5m">
+                      <ref role="3cqZAo" to="pbu6:7LZDtvhKJMq" resolve="PARTIAL" />
+                      <ref role="1PxDUh" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
                     </node>
                   </node>
                 </node>
@@ -3151,7 +3148,7 @@
                   <node concept="3cpWsn" id="3kdFyLYhwOD" role="3cpWs9">
                     <property role="TrG5h" value="res" />
                     <node concept="3uibUv" id="3kdFyLYhwOE" role="1tU5fm">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                     <node concept="1eOMI4" id="3kdFyLYhwOF" role="33vP2m">
                       <node concept="10QFUN" id="3kdFyLYhwOG" role="1eOMHV">
@@ -3162,7 +3159,7 @@
                           </node>
                         </node>
                         <node concept="3uibUv" id="3kdFyLYhwOK" role="10QFUM">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                         </node>
                       </node>
                     </node>
@@ -3314,7 +3311,7 @@
                             <node concept="3clFbF" id="7WrYb3e7ac0" role="3cqZAp">
                               <node concept="2OqwBi" id="7WrYb3e7ac1" role="3clFbG">
                                 <node concept="37vLTw" id="7WrYb3e7ac2" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7WrYb3e7ac4" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3Wwk" resolve="it" />
                                 </node>
                                 <node concept="3TrcHB" id="7WrYb3e7ac3" role="2OqNvi">
                                   <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3322,9 +3319,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="7WrYb3e7ac4" role="1bW2Oz">
+                          <node concept="gl6BB" id="EsIH9l3Wwk" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="7WrYb3e7ac5" role="1tU5fm" />
+                            <node concept="2jxLKc" id="EsIH9l3Wwl" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -3355,14 +3352,14 @@
                                   <property role="3cmrfH" value="1" />
                                 </node>
                                 <node concept="37vLTw" id="7WrYb3e7ack" role="1LFl5Q">
-                                  <ref role="3cqZAo" node="7WrYb3e7acl" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3Wwm" resolve="it" />
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="7WrYb3e7acl" role="1bW2Oz">
+                          <node concept="gl6BB" id="EsIH9l3Wwm" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="7WrYb3e7acm" role="1tU5fm" />
+                            <node concept="2jxLKc" id="EsIH9l3Wwn" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -3721,7 +3718,7 @@
                                               </node>
                                               <node concept="2OqwBi" id="1bwJEEf3A$J" role="3uHU7B">
                                                 <node concept="37vLTw" id="1bwJEEf3Al7" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="1bwJEEf3A04" resolve="it" />
+                                                  <ref role="3cqZAo" node="EsIH9l3Wwo" resolve="it" />
                                                 </node>
                                                 <node concept="3TrEf2" id="1bwJEEf3AZv" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="av4b:1bwJEEf2HGO" resolve="argument" />
@@ -3730,9 +3727,9 @@
                                             </node>
                                           </node>
                                         </node>
-                                        <node concept="Rh6nW" id="1bwJEEf3A04" role="1bW2Oz">
+                                        <node concept="gl6BB" id="EsIH9l3Wwo" role="1bW2Oz">
                                           <property role="TrG5h" value="it" />
-                                          <node concept="2jxLKc" id="1bwJEEf3A05" role="1tU5fm" />
+                                          <node concept="2jxLKc" id="EsIH9l3Wwp" role="1tU5fm" />
                                         </node>
                                       </node>
                                     </node>
@@ -3897,7 +3894,7 @@
                                                 </node>
                                                 <node concept="2OqwBi" id="1bwJEEgpA8z" role="3uHU7B">
                                                   <node concept="37vLTw" id="1bwJEEgpA8$" role="2Oq$k0">
-                                                    <ref role="3cqZAo" node="1bwJEEgpA8A" resolve="it" />
+                                                    <ref role="3cqZAo" node="EsIH9l3Wwq" resolve="it" />
                                                   </node>
                                                   <node concept="3TrEf2" id="1bwJEEgpBAR" role="2OqNvi">
                                                     <ref role="3Tt5mk" to="av4b:1bwJEEgpfj2" resolve="out" />
@@ -3906,9 +3903,9 @@
                                               </node>
                                             </node>
                                           </node>
-                                          <node concept="Rh6nW" id="1bwJEEgpA8A" role="1bW2Oz">
+                                          <node concept="gl6BB" id="EsIH9l3Wwq" role="1bW2Oz">
                                             <property role="TrG5h" value="it" />
-                                            <node concept="2jxLKc" id="1bwJEEgpA8B" role="1tU5fm" />
+                                            <node concept="2jxLKc" id="EsIH9l3Wwr" role="1tU5fm" />
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                                         </node>
                                       </node>
@@ -4373,16 +4370,16 @@
                                   </node>
                                   <node concept="2OqwBi" id="7WrYb3e7kzL" role="3uHU7B">
                                     <node concept="37vLTw" id="7WrYb3e7kzM" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="7WrYb3e7kzO" resolve="it" />
+                                      <ref role="3cqZAo" node="EsIH9l3Wws" resolve="it" />
                                     </node>
                                     <node concept="2bSWHS" id="7WrYb3e7kzN" role="2OqNvi" />
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                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="7WrYb3e7kzO" role="1bW2Oz">
+                            <node concept="gl6BB" id="EsIH9l3Wws" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="7WrYb3e7kzP" role="1tU5fm" />
+                              <node concept="2jxLKc" id="EsIH9l3Wwt" role="1tU5fm" />
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                           </node>
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@@ -4405,7 +4402,7 @@
                                 <node concept="1frAZD" id="7WrYb3e7k$0" role="2Oq$k0" />
                                 <node concept="2CJim2" id="7WrYb3e7k$1" role="2OqNvi">
                                   <node concept="37vLTw" id="7WrYb3e7k$2" role="2CJshu">
-                                    <ref role="3cqZAo" node="7WrYb3e7k$k" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l3Wwu" resolve="it" />
                                   </node>
                                   <node concept="2CJsh3" id="7WrYb3e7k$3" role="2CJshi">
                                     <node concept="3EZMnI" id="7WrYb3e7k$4" role="2wV5jI">
@@ -4447,9 +4444,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="7WrYb3e7k$k" role="1bW2Oz">
+                          <node concept="gl6BB" id="EsIH9l3Wwu" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="7WrYb3e7k$l" role="1tU5fm" />
+                            <node concept="2jxLKc" id="EsIH9l3Wwv" role="1tU5fm" />
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                         </node>
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@@ -4667,7 +4664,7 @@
                     <node concept="3cpWsn" id="1vJWYaviPhQ" role="3cpWs9">
                       <property role="TrG5h" value="res" />
                       <node concept="3uibUv" id="1vJWYaviPhR" role="1tU5fm">
-                        <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                        <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                       </node>
                       <node concept="1eOMI4" id="1vJWYaviPhS" role="33vP2m">
                         <node concept="10QFUN" id="1vJWYaviPhT" role="1eOMHV">
@@ -4678,7 +4675,7 @@
                             </node>
                           </node>
                           <node concept="3uibUv" id="1vJWYaviPhX" role="10QFUM">
-                            <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                            <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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                         </node>
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@@ -5107,7 +5104,7 @@
                   <node concept="3cpWsn" id="ub9nkyOOiG" role="3cpWs9">
                     <property role="TrG5h" value="res" />
                     <node concept="3uibUv" id="ub9nkyOOiC" role="1tU5fm">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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                     <node concept="1eOMI4" id="ub9nkyPVw7" role="33vP2m">
                       <node concept="10QFUN" id="ub9nkyPVw8" role="1eOMHV">
@@ -5118,7 +5115,7 @@
                           </node>
                         </node>
                         <node concept="3uibUv" id="ub9nkyPVw3" role="10QFUM">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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@@ -5167,7 +5164,7 @@
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                       <property role="TrG5h" value="res" />
                       <node concept="3uibUv" id="6HHp2Wn5XE1" role="1tU5fm">
-                        <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                        <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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                       <node concept="1eOMI4" id="6HHp2Wn5XE2" role="33vP2m">
                         <node concept="10QFUN" id="6HHp2Wn5XE3" role="1eOMHV">
@@ -5178,7 +5175,7 @@
                             </node>
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                           <node concept="3uibUv" id="6HHp2Wn5XE7" role="10QFUM">
-                            <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                            <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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@@ -5199,8 +5196,8 @@
                           <node concept="37vLTw" id="28$LOSAhtr5" role="2Oq$k0">
                             <ref role="3cqZAo" node="6HHp2Wn5XE0" resolve="res" />
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-                          <node concept="2OwXpG" id="28$LOSAhufk" role="2OqNvi">
-                            <ref role="2Oxat5" to="xk6s:ub9nkyOIfp" resolve="actual" />
+                          <node concept="liA8E" id="7LZDtvgNt_A" role="2OqNvi">
+                            <ref role="37wK5l" to="xk6s:7LZDtvgGPnG" resolve="getActual" />
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@@ -5218,8 +5215,8 @@
                         <node concept="37vLTw" id="6HHp2Wn5XEz" role="2Oq$k0">
                           <ref role="3cqZAo" node="6HHp2Wn5XE0" resolve="res" />
                         </node>
-                        <node concept="2OwXpG" id="6HHp2Wn5XE$" role="2OqNvi">
-                          <ref role="2Oxat5" to="xk6s:ub9nkyOIfp" resolve="actual" />
+                        <node concept="liA8E" id="7LZDtvgNtJU" role="2OqNvi">
+                          <ref role="37wK5l" to="xk6s:7LZDtvgGPnG" resolve="getActual" />
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                       <node concept="liA8E" id="6HHp2Wn5XE_" role="2OqNvi">
@@ -5449,7 +5446,7 @@
                   <node concept="3cpWsn" id="5Pgo_ASpjeN" role="3cpWs9">
                     <property role="TrG5h" value="res" />
                     <node concept="3uibUv" id="5Pgo_ASpjeO" role="1tU5fm">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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                     <node concept="1eOMI4" id="5Pgo_ASpjeP" role="33vP2m">
                       <node concept="10QFUN" id="5Pgo_ASpjeQ" role="1eOMHV">
@@ -5460,7 +5457,7 @@
                           </node>
                         </node>
                         <node concept="3uibUv" id="5Pgo_ASpjeU" role="10QFUM">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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@@ -5565,7 +5562,7 @@
                       <node concept="3cpWsn" id="5Pgo_ASgPrw" role="3cpWs9">
                         <property role="TrG5h" value="res" />
                         <node concept="3uibUv" id="5Pgo_ASgPrx" role="1tU5fm">
-                          <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                          <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                         </node>
                         <node concept="1eOMI4" id="5Pgo_ASgPry" role="33vP2m">
                           <node concept="10QFUN" id="5Pgo_ASgPrz" role="1eOMHV">
@@ -5576,7 +5573,7 @@
                               </node>
                             </node>
                             <node concept="3uibUv" id="5Pgo_ASgPrB" role="10QFUM">
-                              <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                              <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
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                           </node>
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@@ -5590,8 +5587,8 @@
                               <node concept="37vLTw" id="5Pgo_ASgPrG" role="2Oq$k0">
                                 <ref role="3cqZAo" node="5Pgo_ASgPrw" resolve="res" />
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-                              <node concept="2OwXpG" id="5Pgo_ASgPrH" role="2OqNvi">
-                                <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
+                              <node concept="liA8E" id="7LZDtvgOnSI" role="2OqNvi">
+                                <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                               </node>
                             </node>
                             <node concept="liA8E" id="6C0OSEaIvnY" role="2OqNvi">
@@ -5651,7 +5648,7 @@
                     <node concept="3cpWsn" id="5Pgo_ASgPs2" role="3cpWs9">
                       <property role="TrG5h" value="res" />
                       <node concept="3uibUv" id="5Pgo_ASgPs3" role="1tU5fm">
-                        <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                        <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                       </node>
                       <node concept="1eOMI4" id="5Pgo_ASgPs4" role="33vP2m">
                         <node concept="10QFUN" id="5Pgo_ASgPs5" role="1eOMHV">
@@ -5662,7 +5659,7 @@
                             </node>
                           </node>
                           <node concept="3uibUv" id="5Pgo_ASgPs9" role="10QFUM">
-                            <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                            <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                           </node>
                         </node>
                       </node>
@@ -5677,8 +5674,8 @@
                               <node concept="37vLTw" id="5Pgo_ASgPsg" role="2Oq$k0">
                                 <ref role="3cqZAo" node="5Pgo_ASgPs2" resolve="res" />
                               </node>
-                              <node concept="2OwXpG" id="5Pgo_ASgPsh" role="2OqNvi">
-                                <ref role="2Oxat5" to="xk6s:7lHetQyBMcY" resolve="trace" />
+                              <node concept="liA8E" id="7LZDtvgOtlp" role="2OqNvi">
+                                <ref role="37wK5l" to="xk6s:7LZDtvgGPoM" resolve="getTrace" />
                               </node>
                             </node>
                             <node concept="liA8E" id="5Pgo_ASgPsi" role="2OqNvi">
@@ -5694,7 +5691,7 @@
                                 <node concept="3clFbF" id="5Pgo_ASgPsn" role="3cqZAp">
                                   <node concept="2OqwBi" id="5Pgo_ASgPso" role="3clFbG">
                                     <node concept="37vLTw" id="5Pgo_ASgPsp" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="5Pgo_ASgPsr" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817g6" resolve="it" />
                                     </node>
                                     <node concept="liA8E" id="5Pgo_ASgPsq" role="2OqNvi">
                                       <ref role="37wK5l" to="2ahs:4fb2DFB6IMb" resolve="getTargetNode" />
@@ -5702,9 +5699,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="5Pgo_ASgPsr" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817g6" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="5Pgo_ASgPss" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817g7" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -5718,8 +5715,8 @@
                           <node concept="37vLTw" id="5Pgo_ASgPsx" role="2Oq$k0">
                             <ref role="3cqZAo" node="5Pgo_ASgPs2" resolve="res" />
                           </node>
-                          <node concept="2OwXpG" id="5Pgo_ASgPsy" role="2OqNvi">
-                            <ref role="2Oxat5" to="xk6s:7lHetQyBMcY" resolve="trace" />
+                          <node concept="liA8E" id="7LZDtvgOsEC" role="2OqNvi">
+                            <ref role="37wK5l" to="xk6s:7LZDtvgGPoM" resolve="getTrace" />
                           </node>
                         </node>
                       </node>
@@ -5813,7 +5810,7 @@
                 <node concept="3cpWsn" id="5Pgo_ASgPte" role="3cpWs9">
                   <property role="TrG5h" value="res" />
                   <node concept="3uibUv" id="5Pgo_ASgPtf" role="1tU5fm">
-                    <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                    <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                   </node>
                   <node concept="1eOMI4" id="5Pgo_ASgPtg" role="33vP2m">
                     <node concept="10QFUN" id="5Pgo_ASgPth" role="1eOMHV">
@@ -5824,7 +5821,7 @@
                         </node>
                       </node>
                       <node concept="3uibUv" id="5Pgo_ASgPtl" role="10QFUM">
-                        <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                        <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                       </node>
                     </node>
                   </node>
@@ -5838,8 +5835,8 @@
                         <node concept="37vLTw" id="5Pgo_ASgPtr" role="2Oq$k0">
                           <ref role="3cqZAo" node="5Pgo_ASgPte" resolve="res" />
                         </node>
-                        <node concept="2OwXpG" id="5Pgo_ASgPts" role="2OqNvi">
-                          <ref role="2Oxat5" to="xk6s:ub9nkyOIfW" resolve="ok" />
+                        <node concept="liA8E" id="7LZDtvgOjt9" role="2OqNvi">
+                          <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
                         </node>
                       </node>
                     </node>
@@ -5975,7 +5972,7 @@
               <node concept="3cpWsn" id="4AahbtVRZ2d" role="3cpWs9">
                 <property role="TrG5h" value="res" />
                 <node concept="3uibUv" id="4AahbtVRZ2e" role="1tU5fm">
-                  <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                  <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                 </node>
                 <node concept="1eOMI4" id="4AahbtVRZ2f" role="33vP2m">
                   <node concept="10QFUN" id="4AahbtVRZ2g" role="1eOMHV">
@@ -5988,7 +5985,7 @@
                       </node>
                     </node>
                     <node concept="3uibUv" id="4AahbtVRZ2k" role="10QFUM">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                   </node>
                 </node>
@@ -6012,8 +6009,8 @@
                           <node concept="37vLTw" id="4AahbtVRZ2v" role="2Oq$k0">
                             <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                           </node>
-                          <node concept="2OwXpG" id="4AahbtVRZ2w" role="2OqNvi">
-                            <ref role="2Oxat5" to="xk6s:ub9nkyOIgM" resolve="time" />
+                          <node concept="liA8E" id="7LZDtvgNkGb" role="2OqNvi">
+                            <ref role="37wK5l" to="xk6s:7LZDtvgGPof" resolve="getTime" />
                           </node>
                         </node>
                       </node>
@@ -6037,8 +6034,8 @@
                     <node concept="37vLTw" id="4AahbtVRZ2C" role="2Oq$k0">
                       <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                     </node>
-                    <node concept="2OwXpG" id="4AahbtVRZ2D" role="2OqNvi">
-                      <ref role="2Oxat5" to="xk6s:ub9nkyOIfW" resolve="ok" />
+                    <node concept="liA8E" id="7LZDtvgNlz1" role="2OqNvi">
+                      <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
                     </node>
                   </node>
                   <node concept="9aQIb" id="4AahbtVRZ2E" role="9aQIa">
@@ -6055,8 +6052,8 @@
                                   <node concept="37vLTw" id="6QTlKYwYMNF" role="2Oq$k0">
                                     <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                                   </node>
-                                  <node concept="2OwXpG" id="6QTlKYwYMNG" role="2OqNvi">
-                                    <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
+                                  <node concept="liA8E" id="7LZDtvgNnkw" role="2OqNvi">
+                                    <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                                   </node>
                                 </node>
                                 <node concept="3cpWs3" id="6QTlKYwYMNH" role="3uHU7B">
@@ -6084,8 +6081,8 @@
                                   <node concept="37vLTw" id="6QTlKYwZ1_i" role="2Oq$k0">
                                     <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                                   </node>
-                                  <node concept="2OwXpG" id="6QTlKYwZ1_j" role="2OqNvi">
-                                    <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
+                                  <node concept="liA8E" id="7LZDtvgNobc" role="2OqNvi">
+                                    <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                                   </node>
                                 </node>
                               </node>
@@ -6161,8 +6158,8 @@
                             <node concept="37vLTw" id="4AahbtVX0O3" role="2Oq$k0">
                               <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                             </node>
-                            <node concept="2OwXpG" id="4AahbtVX1eO" role="2OqNvi">
-                              <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
+                            <node concept="liA8E" id="7LZDtvgNmr7" role="2OqNvi">
+                              <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                             </node>
                           </node>
                         </node>
@@ -6208,8 +6205,8 @@
                                           <node concept="37vLTw" id="4AahbtVRZ2Z" role="2Oq$k0">
                                             <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                                           </node>
-                                          <node concept="2OwXpG" id="4AahbtVRZ30" role="2OqNvi">
-                                            <ref role="2Oxat5" to="xk6s:ub9nkyOIfp" resolve="actual" />
+                                          <node concept="liA8E" id="7LZDtvgNpUx" role="2OqNvi">
+                                            <ref role="37wK5l" to="xk6s:7LZDtvgGPnG" resolve="getActual" />
                                           </node>
                                         </node>
                                         <node concept="liA8E" id="4AahbtVRZ31" role="2OqNvi">
@@ -6226,8 +6223,8 @@
                                   <node concept="37vLTw" id="4AahbtVRZ35" role="2Oq$k0">
                                     <ref role="3cqZAo" node="4AahbtVRZ2d" resolve="res" />
                                   </node>
-                                  <node concept="2OwXpG" id="4AahbtVRZ36" role="2OqNvi">
-                                    <ref role="2Oxat5" to="xk6s:ub9nkyOIfp" resolve="actual" />
+                                  <node concept="liA8E" id="7LZDtvgNp3p" role="2OqNvi">
+                                    <ref role="37wK5l" to="xk6s:7LZDtvgGPnG" resolve="getActual" />
                                   </node>
                                 </node>
                               </node>
@@ -6453,7 +6450,7 @@
               <node concept="3cpWsn" id="3boFcNpxHZJ" role="3cpWs9">
                 <property role="TrG5h" value="res" />
                 <node concept="3uibUv" id="3boFcNpxHZK" role="1tU5fm">
-                  <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                  <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                 </node>
                 <node concept="1eOMI4" id="3boFcNpxHZL" role="33vP2m">
                   <node concept="10QFUN" id="3boFcNpxHZM" role="1eOMHV">
@@ -6466,7 +6463,7 @@
                       </node>
                     </node>
                     <node concept="3uibUv" id="3boFcNpxHZQ" role="10QFUM">
-                      <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                      <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                     </node>
                   </node>
                 </node>
@@ -6485,8 +6482,8 @@
                         <node concept="37vLTw" id="2LEfNl$XNIf" role="2Oq$k0">
                           <ref role="3cqZAo" node="3boFcNpxHZJ" resolve="res" />
                         </node>
-                        <node concept="2OwXpG" id="2LEfNl$XNIg" role="2OqNvi">
-                          <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
+                        <node concept="liA8E" id="7LZDtvgNrz0" role="2OqNvi">
+                          <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                         </node>
                       </node>
                       <node concept="liA8E" id="2LEfNl$XNIh" role="2OqNvi">
@@ -6526,8 +6523,8 @@
                     <node concept="37vLTw" id="3boFcNpxNGL" role="2Oq$k0">
                       <ref role="3cqZAo" node="3boFcNpxHZJ" resolve="res" />
                     </node>
-                    <node concept="2OwXpG" id="3boFcNpxO8L" role="2OqNvi">
-                      <ref role="2Oxat5" to="xk6s:ub9nkyQiZj" resolve="errorMessage" />
+                    <node concept="liA8E" id="7LZDtvgNrf$" role="2OqNvi">
+                      <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                     </node>
                   </node>
                 </node>
@@ -6714,15 +6711,15 @@
                                 <node concept="3clFbF" id="1gw9pCYi7z0" role="3cqZAp">
                                   <node concept="2OqwBi" id="1gw9pCYi7z1" role="3clFbG">
                                     <node concept="37vLTw" id="1gw9pCYi7z2" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="1gw9pCYi7z4" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817g8" resolve="it" />
                                     </node>
                                     <node concept="I4A8Y" id="1gw9pCYi7z3" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="1gw9pCYi7z4" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817g8" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="1gw9pCYi7z5" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817g9" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -6735,15 +6732,15 @@
                             <node concept="3clFbF" id="1gw9pCYi7za" role="3cqZAp">
                               <node concept="2OqwBi" id="1gw9pCYi7zd" role="3clFbG">
                                 <node concept="37vLTw" id="1gw9pCYi7ze" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1gw9pCYi7zg" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817ga" resolve="it" />
                                 </node>
                                 <node concept="LkI2h" id="1gw9pCYi7zf" role="2OqNvi" />
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1gw9pCYi7zg" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817ga" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="1gw9pCYi7zh" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817gb" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -6758,7 +6755,7 @@
                                   <ref role="3cqZAo" node="1gw9pCYiuTs" resolve="s" />
                                 </node>
                                 <node concept="37vLTw" id="1gw9pCYiy9s" role="3uHU7w">
-                                  <ref role="3cqZAo" node="1gw9pCYiuTu" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817gc" resolve="it" />
                                 </node>
                               </node>
                               <node concept="Xl_RD" id="1gw9pCYkvFU" role="3uHU7w">
@@ -6771,9 +6768,9 @@
                           <property role="TrG5h" value="s" />
                           <node concept="17QB3L" id="1gw9pCYivWQ" role="1tU5fm" />
                         </node>
-                        <node concept="Rh6nW" id="1gw9pCYiuTu" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gc" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="1gw9pCYiuTv" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gd" role="1tU5fm" />
                         </node>
                       </node>
                       <node concept="Xl_RD" id="1gw9pCYivmb" role="1MDeny">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/findUsages.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/findUsages.mps
index 931ec091ca..7083b17a77 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/findUsages.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/findUsages.mps
@@ -48,11 +48,12 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -91,7 +92,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -134,7 +135,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
     </language>
   </registry>
   <node concept="2PqlIr" id="18$bUx5q5RM">
@@ -215,13 +215,13 @@
                     <node concept="3clFbS" id="18$bUx5qi2X" role="1bW5cS">
                       <node concept="1O1abz" id="18$bUx5q6uv" role="3cqZAp">
                         <node concept="37vLTw" id="18$bUx5qizy" role="1O1k6O">
-                          <ref role="3cqZAo" node="18$bUx5qi2Y" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ge" resolve="it" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="18$bUx5qi2Y" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817ge" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="18$bUx5qi2Z" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817gf" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/intentions.mps
index 3bdc8b4e37..92741790fa 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/intentions.mps
@@ -22,7 +22,7 @@
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
     <import index="grbm" ref="b0f8641f-bd77-4421-8425-30d9088a82f7/java:org.apache.commons.lang3.text(org.apache.commons/)" />
-    <import index="gyfg" ref="ecfb9949-7433-4db5-85de-0f84d172e4ce/java:com.google.common.base(de.q60.mps.libs/)" />
+    <import index="gyfg" ref="ecfb9949-7433-4db5-85de-0f84d172e4ce/java:com.google.common.base(de.q60.mps.collections.libs/)" />
     <import index="vs0r" ref="r:f7764ca4-8c75-4049-922b-08516400a727(com.mbeddr.core.base.structure)" implicit="true" />
     <import index="yv47" ref="r:da65683e-ff6f-430d-ab68-32a77df72c93(org.iets3.core.expr.toplevel.structure)" implicit="true" />
   </imports>
@@ -52,9 +52,6 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
-      <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
-        <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
-      </concept>
       <concept id="1083260308424" name="jetbrains.mps.baseLanguage.structure.EnumConstantReference" flags="nn" index="Rm8GO">
         <reference id="1083260308426" name="enumConstantDeclaration" index="Rm8GQ" />
         <reference id="1144432896254" name="enumClass" index="1Px2BO" />
@@ -134,7 +131,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -150,7 +147,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -165,6 +162,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -268,7 +266,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -292,7 +290,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
@@ -455,7 +452,7 @@
                   <node concept="3clFbF" id="ub9nkyQ51e" role="3cqZAp">
                     <node concept="2OqwBi" id="ub9nkyPnC$" role="3clFbG">
                       <node concept="37vLTw" id="ub9nkyPnC_" role="2Oq$k0">
-                        <ref role="3cqZAo" node="ub9nkyPfpk" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817gg" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="ub9nkyQb6k" role="2OqNvi">
                         <ref role="37wK5l" to="gdgh:3R3AIvumrTm" resolve="runManually" />
@@ -464,9 +461,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="ub9nkyPfpk" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817gg" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="ub9nkyPfpl" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817gh" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -883,7 +880,7 @@
                       <node concept="2OqwBi" id="1bwJEEfPJii" role="3clFbG">
                         <node concept="2OqwBi" id="1bwJEEfPIRh" role="2Oq$k0">
                           <node concept="37vLTw" id="1bwJEEfPIFJ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1bwJEEfPIF_" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817gi" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="1bwJEEfPJ10" role="2OqNvi">
                             <ref role="3Tt5mk" to="av4b:1bwJEEfL7oM" resolve="outcome" />
@@ -897,9 +894,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1bwJEEfPIF_" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817gi" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="1bwJEEfPIFA" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817gj" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -910,15 +907,15 @@
                   <node concept="3clFbF" id="1bwJEEfPKHV" role="3cqZAp">
                     <node concept="2OqwBi" id="1bwJEEfPKVl" role="3clFbG">
                       <node concept="37vLTw" id="1bwJEEfPKHU" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1bwJEEfPKxa" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817gk" resolve="it" />
                       </node>
                       <node concept="3YRAZt" id="1bwJEEfPLjc" role="2OqNvi" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1bwJEEfPKxa" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817gk" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1bwJEEfPKxb" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817gl" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -981,7 +978,7 @@
                               <node concept="2OqwBi" id="1bwJEEgu7lf" role="3uHU7B">
                                 <node concept="2OqwBi" id="1bwJEEgu6$P" role="2Oq$k0">
                                   <node concept="37vLTw" id="1bwJEEgu6ot" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1bwJEEgt$EE" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817gm" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="1bwJEEgu6XJ" role="2OqNvi">
                                     <ref role="3Tt5mk" to="av4b:1bwJEEf2HGO" resolve="argument" />
@@ -994,7 +991,7 @@
                               <node concept="2OqwBi" id="1bwJEEgt_Qn" role="3uHU7B">
                                 <node concept="2OqwBi" id="1bwJEEgt$TR" role="2Oq$k0">
                                   <node concept="37vLTw" id="1bwJEEgt$Io" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1bwJEEgt$EE" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817gm" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="1bwJEEgt_3x" role="2OqNvi">
                                     <ref role="3Tt5mk" to="av4b:1bwJEEf2HGO" resolve="argument" />
@@ -1006,7 +1003,7 @@
                                 <node concept="2OqwBi" id="1bwJEEgtSo2" role="3uHU7B">
                                   <node concept="2OqwBi" id="1bwJEEgtRI$" role="2Oq$k0">
                                     <node concept="37vLTw" id="1bwJEEgtRsA" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="1bwJEEgt$EE" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817gm" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="1bwJEEgtS73" role="2OqNvi">
                                       <ref role="3Tt5mk" to="av4b:1bwJEEf2HGO" resolve="argument" />
@@ -1020,9 +1017,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1bwJEEgt$EE" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817gm" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1bwJEEgt$EF" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817gn" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1033,15 +1030,15 @@
                       <node concept="3clFbF" id="1bwJEEgtANN" role="3cqZAp">
                         <node concept="2OqwBi" id="1bwJEEgtAXT" role="3clFbG">
                           <node concept="37vLTw" id="1bwJEEgtANM" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1bwJEEgtALQ" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817go" resolve="it" />
                           </node>
                           <node concept="3YRAZt" id="1bwJEEgtBcn" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1bwJEEgtALQ" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817go" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1bwJEEgtALR" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817gp" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1065,15 +1062,15 @@
                           <node concept="3clFbF" id="1bwJEEgtBlZ" role="3cqZAp">
                             <node concept="2OqwBi" id="1bwJEEgtBm0" role="3clFbG">
                               <node concept="37vLTw" id="1bwJEEgtBm1" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1bwJEEgtBm3" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817gq" resolve="it" />
                               </node>
                               <node concept="3YRAZt" id="1bwJEEgtBm2" role="2OqNvi" />
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="1bwJEEgtBm3" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gq" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="1bwJEEgtBm4" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gr" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1353,7 +1350,7 @@
             </node>
             <node concept="2ZW3vV" id="3FKUaHrUJB0" role="3uHU7w">
               <node concept="3uibUv" id="3FKUaHrUJB1" role="2ZW6by">
-                <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
               </node>
               <node concept="37vLTw" id="3FKUaHrUJB2" role="2ZW6bz">
                 <ref role="3cqZAo" node="3FKUaHrUJAQ" resolve="lastResult" />
@@ -1374,12 +1371,12 @@
                         <ref role="3cqZAo" node="3FKUaHrUJAQ" resolve="lastResult" />
                       </node>
                       <node concept="3uibUv" id="3FKUaHrUJBb" role="10QFUM">
-                        <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+                        <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
                       </node>
                     </node>
                   </node>
-                  <node concept="2OwXpG" id="3FKUaHrUJBc" role="2OqNvi">
-                    <ref role="2Oxat5" to="xk6s:ub9nkyOIfp" resolve="actual" />
+                  <node concept="liA8E" id="7LZDtvgNuhn" role="2OqNvi">
+                    <ref role="37wK5l" to="xk6s:7LZDtvgGPnG" resolve="getActual" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/migration.mps
index 694cd13a7c..9a0eae54e0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/migration.mps
@@ -75,7 +75,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
@@ -84,12 +84,13 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -165,7 +166,7 @@
       <concept id="1228341669568" name="jetbrains.mps.lang.smodel.structure.Node_DetachOperation" flags="nn" index="3YRAZt" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -193,7 +194,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1165530316231" name="jetbrains.mps.baseLanguage.collections.structure.IsEmptyOperation" flags="nn" index="1v1jN8" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -293,7 +293,7 @@
                           <node concept="3clFbF" id="7Z_pmaBujxa" role="3cqZAp">
                             <node concept="2OqwBi" id="7Z_pmaBujxb" role="3clFbG">
                               <node concept="37vLTw" id="7Z_pmaBujxc" role="2Oq$k0">
-                                <ref role="3cqZAo" node="7Z_pmaBujxe" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817gs" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="7Z_pmaBujxd" role="2OqNvi">
                                 <ref role="3Tt5mk" to="tp5g:hHqenIi" resolve="nodeToCheck" />
@@ -301,9 +301,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="7Z_pmaBujxe" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gs" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="7Z_pmaBujxf" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gt" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -482,15 +482,15 @@
                                 <node concept="3clFbF" id="7Z_pmaBAncn" role="3cqZAp">
                                   <node concept="2OqwBi" id="7Z_pmaBAno1" role="3clFbG">
                                     <node concept="37vLTw" id="7Z_pmaBAncm" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="7Z_pmaBAn69" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817gu" resolve="it" />
                                     </node>
                                     <node concept="3YRAZt" id="7Z_pmaBAnXx" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="7Z_pmaBAn69" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817gu" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="7Z_pmaBAn6a" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817gv" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/plugin.mps
index 87685aa30e..fe5348f60e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:1f2c1459-9e84-4a21-8c09-b46a4f624a10(org.iets3.core.expr.tests.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="-1" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="-1" />
     <use id="677f00fb-4488-405e-9885-abb75d472fd1" name="com.mbeddr.mpsutil.contextactions" version="-1" />
@@ -35,7 +35,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -136,7 +136,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -158,7 +158,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -203,7 +203,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/structure.mps
index 2d37786e77..13f9682a34 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/structure.mps
@@ -96,7 +96,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/typesystem.mps
index 56ae37ad90..b383e70a68 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/models/typesystem.mps
@@ -84,7 +84,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -214,7 +214,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/org.iets3.core.expr.tests.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/org.iets3.core.expr.tests.mpl
index bd4875c11a..6a7109e0e3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/org.iets3.core.expr.tests.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tests/org.iets3.core.expr.tests.mpl
@@ -33,11 +33,12 @@
         <dependency reexport="false">f61473f9-130f-42f6-b98d-6c438812c2f6(jetbrains.mps.baseLanguage.unitTest)</dependency>
         <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
         <dependency reexport="false">49808fad-9d41-4b96-83fa-9231640f6b2b(JUnit)</dependency>
+        <dependency reexport="false">63b449db-0918-4a4a-a891-2c430ab133e4(org.junit.junit5)</dependency>
       </dependencies>
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -110,6 +111,7 @@
         <module reference="56959ea0-1a4c-409d-b923-9a5132cecf97(org.iets3.core.expr.tests#543569365052197681)" version="0" />
         <module reference="6effa8ea-ddf9-441a-a29e-80a73b7d0fc7(org.iets3.core.expr.tests.rt)" version="0" />
         <module reference="71934284-d7d1-45ee-a054-8c072591085f(org.iets3.core.expr.toplevel)" version="2" />
+        <module reference="63b449db-0918-4a4a-a891-2c430ab133e4(org.junit.junit5)" version="0" />
       </dependencyVersions>
       <mapping-priorities>
         <mapping-priority-rule kind="strictly_together">
@@ -129,7 +131,6 @@
       </mapping-priorities>
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">71934284-d7d1-45ee-a054-8c072591085f(org.iets3.core.expr.toplevel)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -176,7 +177,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -205,7 +206,7 @@
     <language slang="l:90746344-04fd-4286-97d5-b46ae6a81709:jetbrains.mps.lang.migration" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/intentions.mps
index 73e392cdfd..b042b8142c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/intentions.mps
@@ -23,8 +23,8 @@
     <import index="nu60" ref="r:cfd59c48-ecc8-4b0c-8ae8-6d876c46ebbb(org.iets3.core.expr.toplevel.behavior)" />
     <import index="pq1l" ref="r:93cd1fe8-b296-405c-a6e6-040c940ccfa1(org.iets3.core.expr.toplevel.plugin)" />
     <import index="8wxg" ref="r:7d06857c-251f-4454-ac9c-c398e5200a04(org.iets3.core.expr.base.intentions)" />
-    <import index="dxuu" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing(JDK/)" />
     <import index="bd8o" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.application(MPS.IDEA/)" />
+    <import index="dxuu" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing(JDK/)" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" implicit="true" />
   </imports>
   <registry>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/listeners.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/listeners.mps
index 3080d2c9fe..b066f47c11 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/listeners.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/listeners.mps
@@ -5,7 +5,7 @@
     <use id="309e0004-4976-4416-b947-ec02ae4ecef2" name="com.mbeddr.mpsutil.modellisteners" version="0" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
@@ -35,11 +35,12 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -62,7 +63,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -82,7 +83,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
     </language>
   </registry>
   <node concept="jA7cl" id="4ptnK4jesjN">
@@ -112,15 +112,15 @@
                   <node concept="3clFbF" id="4ptnK4jewHw" role="3cqZAp">
                     <node concept="2OqwBi" id="4ptnK4jewRL" role="3clFbG">
                       <node concept="37vLTw" id="4ptnK4jewHv" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4ptnK4jewHo" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817i8" resolve="it" />
                       </node>
                       <node concept="3YRAZt" id="4ptnK4jex3Q" role="2OqNvi" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4ptnK4jewHo" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817i8" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4ptnK4jewHp" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817i9" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/actions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/actions.mps
index ffaf5202f1..3f7a7eb7b7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/actions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/actions.mps
@@ -75,7 +75,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/behavior.mps
index c9bfea22e1..bbbe088090 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/behavior.mps
@@ -75,7 +75,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -155,7 +155,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -168,7 +168,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -197,6 +197,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -335,7 +336,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -391,7 +392,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
         <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -755,7 +755,7 @@
                             <node concept="3clFbF" id="5fy$GmV4lLS" role="3cqZAp">
                               <node concept="2OqwBi" id="5fy$GmV4lLT" role="3clFbG">
                                 <node concept="37vLTw" id="5fy$GmV4lLU" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5fy$GmV4lLX" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817gw" resolve="it" />
                                 </node>
                                 <node concept="1mIQ4w" id="5fy$GmV4lLV" role="2OqNvi">
                                   <node concept="chp4Y" id="5fy$GmV4lLW" role="cj9EA">
@@ -765,9 +765,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="5fy$GmV4lLX" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817gw" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="5fy$GmV4lLY" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817gx" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -779,7 +779,7 @@
                             <node concept="2OqwBi" id="5fy$GmV50ax" role="3clFbG">
                               <node concept="2OqwBi" id="5fy$GmV4nsi" role="2Oq$k0">
                                 <node concept="37vLTw" id="5fy$GmV4nbN" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5fy$GmV4mWg" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817gy" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5fy$GmV4nFx" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -789,9 +789,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="5fy$GmV4mWg" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gy" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="5fy$GmV4mWh" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gz" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -822,7 +822,7 @@
                         <node concept="2OqwBi" id="3RtoCzi7o4W" role="3clFbG">
                           <node concept="2OqwBi" id="3RtoCzi7l5u" role="2Oq$k0">
                             <node concept="37vLTw" id="13V9Kfd$3Ef" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5fy$GmV4KCk" resolve="constraint" />
+                              <ref role="3cqZAo" node="4z0AnX817gC" resolve="constraint" />
                             </node>
                             <node concept="2Rf3mk" id="3RtoCzi7lBV" role="2OqNvi">
                               <node concept="1xMEDy" id="3RtoCzi7lBX" role="1xVPHs">
@@ -839,7 +839,7 @@
                                 <node concept="3clFbF" id="3RtoCzi7rUn" role="3cqZAp">
                                   <node concept="2OqwBi" id="3RtoCzi7s6G" role="3clFbG">
                                     <node concept="37vLTw" id="3RtoCzi7rUl" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3RtoCzi7rHt" resolve="res" />
+                                      <ref role="3cqZAo" node="4z0AnX817g$" resolve="res" />
                                     </node>
                                     <node concept="1P9Npp" id="3RtoCzi7swc" role="2OqNvi">
                                       <node concept="2pJPEk" id="3RtoCzi7zD3" role="1P9ThW">
@@ -865,9 +865,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3RtoCzi7rHt" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817g$" role="1bW2Oz">
                                 <property role="TrG5h" value="res" />
-                                <node concept="2jxLKc" id="3RtoCzi7rHu" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817g_" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -878,7 +878,7 @@
                         <node concept="2OqwBi" id="3RtoCzidmAs" role="3clFbG">
                           <node concept="2OqwBi" id="3RtoCzidji0" role="2Oq$k0">
                             <node concept="37vLTw" id="13V9Kfd$5aZ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5fy$GmV4KCk" resolve="constraint" />
+                              <ref role="3cqZAo" node="4z0AnX817gC" resolve="constraint" />
                             </node>
                             <node concept="2Rf3mk" id="3RtoCzidjzF" role="2OqNvi">
                               <node concept="1xMEDy" id="3RtoCzidjzH" role="1xVPHs">
@@ -899,7 +899,7 @@
                                     <node concept="2OqwBi" id="3RtoCziduDw" role="33vP2m">
                                       <node concept="2OqwBi" id="3RtoCziduDx" role="2Oq$k0">
                                         <node concept="37vLTw" id="3RtoCziduDy" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3RtoCzidrkZ" resolve="ref" />
+                                          <ref role="3cqZAo" node="4z0AnX817gA" resolve="ref" />
                                         </node>
                                         <node concept="3TrEf2" id="3RtoCziduDz" role="2OqNvi">
                                           <ref role="3Tt5mk" to="zzzn:49WTic8ggq6" resolve="arg" />
@@ -934,7 +934,7 @@
                                 <node concept="3clFbF" id="3RtoCzidr$G" role="3cqZAp">
                                   <node concept="2OqwBi" id="3RtoCzidrLW" role="3clFbG">
                                     <node concept="37vLTw" id="3RtoCzidr$E" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3RtoCzidrkZ" resolve="ref" />
+                                      <ref role="3cqZAo" node="4z0AnX817gA" resolve="ref" />
                                     </node>
                                     <node concept="1P9Npp" id="3RtoCzidsj$" role="2OqNvi">
                                       <node concept="2OqwBi" id="13V9Kfd$i$G" role="1P9ThW">
@@ -955,18 +955,18 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3RtoCzidrkZ" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817gA" role="1bW2Oz">
                                 <property role="TrG5h" value="ref" />
-                                <node concept="2jxLKc" id="3RtoCzidrl0" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817gB" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5fy$GmV4KCk" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817gC" role="1bW2Oz">
                       <property role="TrG5h" value="constraint" />
-                      <node concept="2jxLKc" id="5fy$GmV4KCl" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817gD" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1041,14 +1041,14 @@
                             <node concept="BsUDl" id="74u6qanTSDb" role="3clFbG">
                               <ref role="37wK5l" to="pbu6:1xFBUnx0h1Q" resolve="extractValuesFromExpression" />
                               <node concept="37vLTw" id="74u6qanTT2L" role="37wK5m">
-                                <ref role="3cqZAo" node="74u6qanTSbN" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817gE" resolve="it" />
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="74u6qanTSbN" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gE" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="74u6qanTSbO" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gF" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1223,7 +1223,7 @@
                         <node concept="1pGfFk" id="2nByCcxY9t1" role="2ShVmc">
                           <ref role="37wK5l" to="oq0c:3ni3WidV2MT" resolve="EffectHelper" />
                           <node concept="37vLTw" id="2nByCcxY9_I" role="37wK5m">
-                            <ref role="3cqZAo" node="2nByCcxY0V4" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817gG" resolve="it" />
                           </node>
                         </node>
                       </node>
@@ -1233,9 +1233,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2nByCcxY0V4" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817gG" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2nByCcxY0V5" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817gH" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1303,7 +1303,7 @@
                             <node concept="3clFbF" id="2i_9vDmz_lr" role="3cqZAp">
                               <node concept="2OqwBi" id="2i_9vDmz_$b" role="3clFbG">
                                 <node concept="37vLTw" id="2i_9vDmz_lq" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2i_9vDmz_e2" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817gI" resolve="it" />
                                 </node>
                                 <node concept="1mIQ4w" id="2i_9vDmz_RC" role="2OqNvi">
                                   <node concept="chp4Y" id="2i_9vDmz_Zx" role="cj9EA">
@@ -1313,9 +1313,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="2i_9vDmz_e2" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817gI" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="2i_9vDmz_e3" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817gJ" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1326,7 +1326,7 @@
                           <node concept="3clFbF" id="2i_9vDmzATt" role="3cqZAp">
                             <node concept="2OqwBi" id="2i_9vDmzB9W" role="3clFbG">
                               <node concept="37vLTw" id="2i_9vDmzATs" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2i_9vDmzAI_" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817gK" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="2i_9vDmzBp9" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -1334,9 +1334,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="2i_9vDmzAI_" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gK" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="2i_9vDmzAIA" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gL" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1392,7 +1392,7 @@
                           </node>
                           <node concept="2OqwBi" id="2i_9vDmzLFK" role="33vP2m">
                             <node concept="37vLTw" id="2i_9vDmzLv8" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2i_9vDmzLdD" resolve="c" />
+                              <ref role="3cqZAo" node="4z0AnX817gM" resolve="c" />
                             </node>
                             <node concept="1$rogu" id="2i_9vDmzLWl" role="2OqNvi" />
                           </node>
@@ -1471,9 +1471,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2i_9vDmzLdD" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817gM" role="1bW2Oz">
                       <property role="TrG5h" value="c" />
-                      <node concept="2jxLKc" id="2i_9vDmzLdE" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817gN" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1937,7 +1937,7 @@
                             <node concept="3clFbF" id="74u6qanTb40" role="3cqZAp">
                               <node concept="2OqwBi" id="74u6qanTb41" role="3clFbG">
                                 <node concept="37vLTw" id="74u6qanTb42" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="74u6qanTb45" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817gO" resolve="it" />
                                 </node>
                                 <node concept="1mIQ4w" id="74u6qanTb43" role="2OqNvi">
                                   <node concept="chp4Y" id="74u6qanTb44" role="cj9EA">
@@ -1947,9 +1947,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="74u6qanTb45" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817gO" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="74u6qanTb46" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817gP" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1961,7 +1961,7 @@
                             <node concept="2OqwBi" id="74u6qanTb4b" role="3clFbG">
                               <node concept="2OqwBi" id="74u6qanTb4c" role="2Oq$k0">
                                 <node concept="37vLTw" id="74u6qanTb4d" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="74u6qanTb4g" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817gQ" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="74u6qanTb4e" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -1971,9 +1971,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="74u6qanTb4g" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gQ" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="74u6qanTb4h" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gR" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2004,7 +2004,7 @@
                         <node concept="2OqwBi" id="74u6qanTb4v" role="3clFbG">
                           <node concept="2OqwBi" id="74u6qanTb4w" role="2Oq$k0">
                             <node concept="37vLTw" id="74u6qanTb4x" role="2Oq$k0">
-                              <ref role="3cqZAo" node="74u6qanTb5r" resolve="constraint" />
+                              <ref role="3cqZAo" node="4z0AnX817gW" resolve="constraint" />
                             </node>
                             <node concept="2Rf3mk" id="74u6qanTb4y" role="2OqNvi">
                               <node concept="1xMEDy" id="74u6qanTb4z" role="1xVPHs">
@@ -2021,7 +2021,7 @@
                                 <node concept="3clFbF" id="74u6qanTb4D" role="3cqZAp">
                                   <node concept="2OqwBi" id="74u6qanTb4E" role="3clFbG">
                                     <node concept="37vLTw" id="74u6qanTb4F" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="74u6qanTb4Q" resolve="res" />
+                                      <ref role="3cqZAo" node="4z0AnX817gS" resolve="res" />
                                     </node>
                                     <node concept="1P9Npp" id="74u6qanTb4G" role="2OqNvi">
                                       <node concept="2pJPEk" id="74u6qanTb4H" role="1P9ThW">
@@ -2047,9 +2047,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="74u6qanTb4Q" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817gS" role="1bW2Oz">
                                 <property role="TrG5h" value="res" />
-                                <node concept="2jxLKc" id="74u6qanTb4R" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817gT" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -2060,7 +2060,7 @@
                         <node concept="2OqwBi" id="74u6qanTb4U" role="3clFbG">
                           <node concept="2OqwBi" id="74u6qanTb4V" role="2Oq$k0">
                             <node concept="37vLTw" id="74u6qanTb4W" role="2Oq$k0">
-                              <ref role="3cqZAo" node="74u6qanTb5r" resolve="constraint" />
+                              <ref role="3cqZAo" node="4z0AnX817gW" resolve="constraint" />
                             </node>
                             <node concept="2Rf3mk" id="74u6qanTb4X" role="2OqNvi">
                               <node concept="1xMEDy" id="74u6qanTb4Y" role="1xVPHs">
@@ -2081,7 +2081,7 @@
                                     <node concept="2OqwBi" id="74u6qanTb57" role="33vP2m">
                                       <node concept="2OqwBi" id="74u6qanTb58" role="2Oq$k0">
                                         <node concept="37vLTw" id="74u6qanTb59" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="74u6qanTb5p" resolve="ref" />
+                                          <ref role="3cqZAo" node="4z0AnX817gU" resolve="ref" />
                                         </node>
                                         <node concept="3TrEf2" id="74u6qanTb5a" role="2OqNvi">
                                           <ref role="3Tt5mk" to="zzzn:49WTic8ggq6" resolve="arg" />
@@ -2192,7 +2192,7 @@
                                 <node concept="3clFbF" id="74u6qanTb5e" role="3cqZAp">
                                   <node concept="2OqwBi" id="74u6qanTb5f" role="3clFbG">
                                     <node concept="37vLTw" id="74u6qanTb5g" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="74u6qanTb5p" resolve="ref" />
+                                      <ref role="3cqZAo" node="4z0AnX817gU" resolve="ref" />
                                     </node>
                                     <node concept="1P9Npp" id="74u6qanTb5h" role="2OqNvi">
                                       <node concept="37vLTw" id="74u6qaotX26" role="1P9ThW">
@@ -2202,18 +2202,18 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="74u6qanTb5p" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817gU" role="1bW2Oz">
                                 <property role="TrG5h" value="ref" />
-                                <node concept="2jxLKc" id="74u6qanTb5q" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817gV" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="74u6qanTb5r" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817gW" role="1bW2Oz">
                       <property role="TrG5h" value="constraint" />
-                      <node concept="2jxLKc" id="74u6qanTb5s" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817gX" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2288,14 +2288,14 @@
                             <node concept="BsUDl" id="74u6qanTwH8" role="3clFbG">
                               <ref role="37wK5l" to="pbu6:1xFBUnx0h1Q" resolve="extractValuesFromExpression" />
                               <node concept="37vLTw" id="74u6qanTwRh" role="37wK5m">
-                                <ref role="3cqZAo" node="74u6qanTwxp" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817gY" resolve="it" />
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="74u6qanTwxp" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817gY" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="74u6qanTwxq" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817gZ" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2418,7 +2418,7 @@
                             <node concept="3clFbF" id="74u6qapyDcG" role="3cqZAp">
                               <node concept="2OqwBi" id="74u6qapyDcH" role="3clFbG">
                                 <node concept="37vLTw" id="74u6qapyDcI" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="74u6qapyDcL" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817h0" resolve="it" />
                                 </node>
                                 <node concept="1mIQ4w" id="74u6qapyDcJ" role="2OqNvi">
                                   <node concept="chp4Y" id="74u6qapyDcK" role="cj9EA">
@@ -2428,9 +2428,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="74u6qapyDcL" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817h0" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="74u6qapyDcM" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817h1" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -2441,7 +2441,7 @@
                           <node concept="3clFbF" id="74u6qapyDcQ" role="3cqZAp">
                             <node concept="2OqwBi" id="74u6qapyDcR" role="3clFbG">
                               <node concept="37vLTw" id="74u6qapyDcS" role="2Oq$k0">
-                                <ref role="3cqZAo" node="74u6qapyDcU" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817h2" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="74u6qapyDcT" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -2449,9 +2449,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="74u6qapyDcU" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817h2" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="74u6qapyDcV" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817h3" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2507,7 +2507,7 @@
                           </node>
                           <node concept="2OqwBi" id="74u6qapyDdk" role="33vP2m">
                             <node concept="37vLTw" id="74u6qapyDdl" role="2Oq$k0">
-                              <ref role="3cqZAo" node="74u6qapyDdS" resolve="c" />
+                              <ref role="3cqZAo" node="4z0AnX817h4" resolve="c" />
                             </node>
                             <node concept="1$rogu" id="74u6qapyDdm" role="2OqNvi" />
                           </node>
@@ -2667,9 +2667,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="74u6qapyDdS" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817h4" role="1bW2Oz">
                       <property role="TrG5h" value="c" />
-                      <node concept="2jxLKc" id="74u6qapyDdT" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817h5" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2750,15 +2750,11 @@
       </node>
       <node concept="37vLTG" id="ZYPG76BgMI" role="3clF46">
         <property role="TrG5h" value="expectedType" />
-        <node concept="3Tqbb2" id="ZYPG76BgMJ" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76BgMJ" role="1tU5fm" />
       </node>
       <node concept="37vLTG" id="ZYPG76BgMK" role="3clF46">
         <property role="TrG5h" value="actualType" />
-        <node concept="3Tqbb2" id="ZYPG76BgML" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76BgML" role="1tU5fm" />
       </node>
       <node concept="17QB3L" id="ZYPG76BgMM" role="3clF45" />
     </node>
@@ -3254,7 +3250,7 @@
                   <node concept="3clFbF" id="RIvadv2Ivk" role="3cqZAp">
                     <node concept="2OqwBi" id="RIvadv2IDr" role="3clFbG">
                       <node concept="37vLTw" id="RIvadv2Ivj" role="2Oq$k0">
-                        <ref role="3cqZAo" node="RIvadv2InN" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817h6" resolve="it" />
                       </node>
                       <node concept="3TrEf2" id="2Fd5B1gxdCm" role="2OqNvi">
                         <ref role="3Tt5mk" to="yv47:ub9nkyG$WU" resolve="constant" />
@@ -3262,9 +3258,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="RIvadv2InN" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817h6" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="RIvadv2InO" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817h7" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3857,7 +3853,7 @@
                         <ref role="37wK5l" to="pbu6:lH$PujSMTa" resolve="DefaultConstraintAndError" />
                         <node concept="2OqwBi" id="78hTg1$sDNx" role="37wK5m">
                           <node concept="37vLTw" id="78hTg1$sDE5" role="2Oq$k0">
-                            <ref role="3cqZAo" node="SRvqsNppF0" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817h8" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="78hTg1$sEds" role="2OqNvi">
                             <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -3865,19 +3861,19 @@
                         </node>
                         <node concept="2OqwBi" id="68JOYCcTzlz" role="37wK5m">
                           <node concept="37vLTw" id="68JOYCcTz3q" role="2Oq$k0">
-                            <ref role="3cqZAo" node="SRvqsNppF0" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817h8" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="68JOYCcTzQP" role="2OqNvi">
                             <ref role="3Tt5mk" to="hm2y:5F8uib8hsjE" resolve="err" />
                           </node>
                         </node>
                         <node concept="37vLTw" id="6ItA_x_aJIs" role="37wK5m">
-                          <ref role="3cqZAo" node="SRvqsNppF0" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817h8" resolve="it" />
                         </node>
                         <node concept="2OqwBi" id="78hTg1$sH78" role="37wK5m">
                           <node concept="2OqwBi" id="78hTg1$sGxO" role="2Oq$k0">
                             <node concept="37vLTw" id="78hTg1$sGlN" role="2Oq$k0">
-                              <ref role="3cqZAo" node="SRvqsNppF0" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817h8" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="78hTg1$sGOj" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -3889,7 +3885,7 @@
                         </node>
                         <node concept="2OqwBi" id="lH$PujSIX6" role="37wK5m">
                           <node concept="37vLTw" id="lH$PujSIKz" role="2Oq$k0">
-                            <ref role="3cqZAo" node="SRvqsNppF0" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817h8" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="lH$PujSLcE" role="2OqNvi">
                             <ref role="3TsBF5" to="hm2y:3xthw2gJs74" resolve="warning" />
@@ -3899,9 +3895,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="SRvqsNppF0" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817h8" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="SRvqsNppF1" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817h9" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4153,7 +4149,7 @@
                     <node concept="3clFbF" id="6N7p0lWz3ZK" role="3cqZAp">
                       <node concept="2OqwBi" id="6N7p0lWz48M" role="3clFbG">
                         <node concept="37vLTw" id="6N7p0lWz3ZJ" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6N7p0lWz3Wd" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ha" resolve="it" />
                         </node>
                         <node concept="liA8E" id="6N7p0lWz4jA" role="2OqNvi">
                           <ref role="37wK5l" to="pq1l:6N7p0lWyLeD" resolve="PriorityLevel" />
@@ -4161,9 +4157,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6N7p0lWz3Wd" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ha" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6N7p0lWz3We" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817hb" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="1nlBCl" id="6N7p0lWz4tU" role="2S7zOq" />
@@ -4238,7 +4234,7 @@
                     <node concept="2OqwBi" id="6XnzqFdoNpr" role="3clFbG">
                       <node concept="2OqwBi" id="6XnzqFdoJ4n" role="2Oq$k0">
                         <node concept="37vLTw" id="6XnzqFdoG8u" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6XnzqFdoFPF" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b26E" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="6XnzqFdoMUC" role="2OqNvi">
                           <ref role="37wK5l" to="pbu6:4WLweXm3SW5" resolve="type" />
@@ -4250,9 +4246,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6XnzqFdoFPF" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b26E" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6XnzqFdoFPG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b26F" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4284,7 +4280,7 @@
                   <node concept="3clFbF" id="7D7uZV2j0Y2" role="3cqZAp">
                     <node concept="2OqwBi" id="7D7uZV2j13s" role="3clFbG">
                       <node concept="37vLTw" id="7D7uZV2j0Y1" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7D7uZV2j0Wq" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817hc" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="7D7uZV2j1cn" role="2OqNvi">
                         <node concept="chp4Y" id="7D7uZV2pxe2" role="cj9EA">
@@ -4294,9 +4290,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7D7uZV2j0Wq" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hc" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7D7uZV2j0Wr" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hd" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4699,9 +4695,7 @@
       </node>
       <node concept="37vLTG" id="ZYPG76NAql" role="3clF46">
         <property role="TrG5h" value="actualType" />
-        <node concept="3Tqbb2" id="ZYPG76NAqm" role="1tU5fm">
-          <ref role="ehGHo" to="hm2y:6sdnDbSlaok" resolve="Type" />
-        </node>
+        <node concept="3Tqbb2" id="ZYPG76NAqm" role="1tU5fm" />
       </node>
       <node concept="17QB3L" id="ZYPG76NAqn" role="3clF45" />
     </node>
@@ -4946,7 +4940,7 @@
                             <node concept="3clFbF" id="5ipapt3nmee" role="3cqZAp">
                               <node concept="2OqwBi" id="5ipapt3nmef" role="3clFbG">
                                 <node concept="37vLTw" id="5ipapt3nmeg" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5ipapt3nmei" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817he" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5ipapt3nmeh" role="2OqNvi">
                                   <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -4954,9 +4948,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="5ipapt3nmei" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817he" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="5ipapt3nmej" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817hf" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -5144,14 +5138,14 @@
                         <ref role="3cqZAo" node="5ipapt3zhMK" resolve="expr" />
                       </node>
                       <node concept="37vLTw" id="5ipapt3zvv3" role="3uHU7B">
-                        <ref role="3cqZAo" node="5ipapt3zvrR" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817hg" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5ipapt3zvrR" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hg" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5ipapt3zvrS" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hh" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -5181,7 +5175,7 @@
                     <node concept="2OqwBi" id="5ipapt3z_7x" role="3clFbG">
                       <node concept="2OqwBi" id="5ipapt3zy$6" role="2Oq$k0">
                         <node concept="37vLTw" id="5ipapt3zynQ" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5ipapt3zykA" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hi" resolve="it" />
                         </node>
                         <node concept="2Rf3mk" id="5ipapt3zyGT" role="2OqNvi">
                           <node concept="1xMEDy" id="5ipapt3zyGV" role="1xVPHs">
@@ -5199,9 +5193,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5ipapt3zykA" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hi" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5ipapt3zykB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hj" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -5297,14 +5291,14 @@
                         <ref role="3cqZAo" node="5ipapt3DCea" resolve="expr" />
                       </node>
                       <node concept="37vLTw" id="5ipapt3DCdJ" role="3uHU7B">
-                        <ref role="3cqZAo" node="5ipapt3DCdK" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817hk" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5ipapt3DCdK" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hk" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5ipapt3DCdL" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hl" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -5334,7 +5328,7 @@
                     <node concept="2OqwBi" id="5ipapt3DCdY" role="3clFbG">
                       <node concept="2OqwBi" id="5ipapt3DCdZ" role="2Oq$k0">
                         <node concept="37vLTw" id="5ipapt3DCe0" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5ipapt3DCe6" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hm" resolve="it" />
                         </node>
                         <node concept="2Rf3mk" id="5ipapt3DCe1" role="2OqNvi">
                           <node concept="1xMEDy" id="5ipapt3DCe2" role="1xVPHs">
@@ -5352,9 +5346,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5ipapt3DCe6" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hm" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5ipapt3DCe7" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hn" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -5693,7 +5687,7 @@
                           <ref role="37wK5l" to="pbu6:lH$PujSMTa" resolve="DefaultConstraintAndError" />
                           <node concept="2OqwBi" id="3aPPYyxBZm5" role="37wK5m">
                             <node concept="37vLTw" id="3aPPYyxBZm6" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3aPPYyxBZmm" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ho" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="3aPPYyxBZm7" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -5701,19 +5695,19 @@
                           </node>
                           <node concept="2OqwBi" id="68JOYCcTAT1" role="37wK5m">
                             <node concept="37vLTw" id="68JOYCcTAvG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3aPPYyxBZmm" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ho" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="68JOYCcTB$z" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:5F8uib8hsjE" resolve="err" />
                             </node>
                           </node>
                           <node concept="37vLTw" id="3aPPYyxBZm8" role="37wK5m">
-                            <ref role="3cqZAo" node="3aPPYyxBZmm" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817ho" resolve="it" />
                           </node>
                           <node concept="2OqwBi" id="3aPPYyxBZma" role="37wK5m">
                             <node concept="2OqwBi" id="3aPPYyxBZmb" role="2Oq$k0">
                               <node concept="37vLTw" id="3aPPYyxBZmc" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3aPPYyxBZmm" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817ho" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="3aPPYyxBZmd" role="2OqNvi">
                                 <ref role="3Tt5mk" to="hm2y:KaZMgy4Ilu" resolve="expr" />
@@ -5725,7 +5719,7 @@
                           </node>
                           <node concept="2OqwBi" id="48O0oIkAOyO" role="37wK5m">
                             <node concept="37vLTw" id="48O0oIkAOi5" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3aPPYyxBZmm" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ho" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="48O0oIkAQ$X" role="2OqNvi">
                               <ref role="3TsBF5" to="hm2y:3xthw2gJs74" resolve="warning" />
@@ -5735,9 +5729,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="3aPPYyxBZmm" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ho" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="3aPPYyxBZmn" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817hp" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -6462,7 +6456,7 @@
                     <node concept="3clFbF" id="7S4tmubDufQ" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubDutv" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubDufP" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubDu2z" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hq" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubDyP8" role="2OqNvi">
                           <ref role="37wK5l" node="7S4tmubDuM6" resolve="renderReadable" />
@@ -6470,9 +6464,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubDu2z" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817hq" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubDu2$" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817hr" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -6615,7 +6609,7 @@
                   <node concept="3clFbF" id="olugnm0XaB" role="3cqZAp">
                     <node concept="2OqwBi" id="olugnm0XAO" role="3clFbG">
                       <node concept="37vLTw" id="olugnm0XaA" role="2Oq$k0">
-                        <ref role="3cqZAo" node="olugnm0X0I" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817hs" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="olugnm10lK" role="2OqNvi">
                         <ref role="37wK5l" node="olugnm0Egc" resolve="effectiveLiterals" />
@@ -6623,9 +6617,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="olugnm0X0I" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hs" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="olugnm0X0J" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817ht" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -7071,7 +7065,7 @@
                     <node concept="3fqX7Q" id="58eyHuUh9bN" role="3clFbG">
                       <node concept="2OqwBi" id="58eyHuUh9uF" role="3fr31v">
                         <node concept="37vLTw" id="58eyHuUh9dR" role="2Oq$k0">
-                          <ref role="3cqZAo" node="58eyHuUh93F" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hu" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="58eyHuUh9Wm" role="2OqNvi">
                           <node concept="chp4Y" id="58eyHuUha9I" role="cj9EA">
@@ -7082,9 +7076,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="58eyHuUh93F" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hu" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="58eyHuUh93G" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hv" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -7250,7 +7244,7 @@
                       <node concept="2OqwBi" id="6JZACDWH7OS" role="3clFbG">
                         <node concept="2OqwBi" id="6JZACDWH6va" role="2Oq$k0">
                           <node concept="37vLTw" id="6JZACDWH6b9" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6JZACDWH5Xo" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hw" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="4WLweXm4piJ" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:4WLweXm3SW5" resolve="type" />
@@ -7264,9 +7258,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6JZACDWH5Xo" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817hw" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6JZACDWH5Xp" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817hx" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -7282,7 +7276,7 @@
                         </node>
                         <node concept="2OqwBi" id="6JZACDWGX$E" role="1m5AlR">
                           <node concept="37vLTw" id="6JZACDWGX$F" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6JZACDWGX$G" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hy" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="4WLweXm4qig" role="2OqNvi">
                             <ref role="37wK5l" to="pbu6:4WLweXm3SW5" resolve="type" />
@@ -7295,9 +7289,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6JZACDWGX$G" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hy" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6JZACDWGX$H" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hz" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -7628,15 +7622,15 @@
                         <ref role="37wK5l" to="wcxw:7YnpPzFReKN" resolve="isCommentedOut" />
                         <ref role="1Pybhc" to="wcxw:5FzO4t9gN3W" resolve="CommentUtil" />
                         <node concept="37vLTw" id="230lIJTGhZ" role="37wK5m">
-                          <ref role="3cqZAo" node="230lIJTFuY" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817h$" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="230lIJTFuY" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817h$" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="230lIJTFuZ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817h_" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -8056,7 +8050,7 @@
                           <ref role="2pIpSl" to="yv47:67Y8mp$DNs9" resolve="literal" />
                           <node concept="36biLy" id="_kNv2PYfKV" role="28nt2d">
                             <node concept="37vLTw" id="_kNv2PYqM4" role="36biLW">
-                              <ref role="3cqZAo" node="_kNv2PYekW" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817hA" resolve="it" />
                             </node>
                           </node>
                         </node>
@@ -8064,9 +8058,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="_kNv2PYekW" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hA" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="_kNv2PYekX" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hB" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -8320,7 +8314,7 @@
                     <node concept="3clFbF" id="7S4tmubDlG$" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubDlVx" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubDlGz" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubDlGs" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hC" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubDp$5" role="2OqNvi">
                           <ref role="37wK5l" node="7S4tmubDmlH" resolve="renderReadable" />
@@ -8328,9 +8322,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubDlGs" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817hC" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubDlGt" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817hD" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -8376,7 +8370,7 @@
                       <node concept="3clFbF" id="7cphKbLzN4t" role="3cqZAp">
                         <node concept="2OqwBi" id="7cphKbLzNlu" role="3clFbG">
                           <node concept="37vLTw" id="7cphKbLzN4s" role="2Oq$k0">
-                            <ref role="3cqZAo" node="7cphKbLzMTp" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hE" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="7cphKbLzNE0" role="2OqNvi">
                             <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -8384,9 +8378,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="7cphKbLzMTp" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817hE" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="7cphKbLzMTq" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817hF" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -8434,7 +8428,7 @@
                     <node concept="2OqwBi" id="1Ic1PAvP8J" role="3clFbG">
                       <node concept="2OqwBi" id="1Ic1PAvNpc" role="2Oq$k0">
                         <node concept="37vLTw" id="1Ic1PAvN93" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1Ic1PAvMZc" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hG" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="1Ic1PAvNG_" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -8449,9 +8443,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1Ic1PAvMZc" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hG" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1Ic1PAvMZd" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hH" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -8795,11 +8789,11 @@
                               <node concept="3clFbF" id="4ptnK4jbG2i" role="3cqZAp">
                                 <node concept="3clFbC" id="4ptnK4jbG2j" role="3clFbG">
                                   <node concept="37vLTw" id="4ptnK4jbPG1" role="3uHU7w">
-                                    <ref role="3cqZAo" node="4ptnK4jbNro" resolve="mand" />
+                                    <ref role="3cqZAo" node="4z0AnX817hK" resolve="mand" />
                                   </node>
                                   <node concept="2OqwBi" id="4ptnK4jbG2l" role="3uHU7B">
                                     <node concept="37vLTw" id="4ptnK4jbG2m" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4ptnK4jbG2o" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817hI" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="4ptnK4jbG2n" role="2OqNvi">
                                       <ref role="3Tt5mk" to="yv47:4ptnK4jbqZQ" resolve="field" />
@@ -8808,9 +8802,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="4ptnK4jbG2o" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817hI" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="4ptnK4jbG2p" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817hJ" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -8818,9 +8812,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4ptnK4jbNro" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hK" role="1bW2Oz">
                   <property role="TrG5h" value="mand" />
-                  <node concept="2jxLKc" id="4ptnK4jbNrp" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hL" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -8888,7 +8882,7 @@
                               <ref role="cht4Q" to="hm2y:4WLweXm3SVw" resolve="ITypeable" />
                             </node>
                             <node concept="37vLTw" id="7oamhfs0PLq" role="1m5AlR">
-                              <ref role="3cqZAo" node="4ptnK4jbwIL" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817hM" resolve="it" />
                             </node>
                           </node>
                           <node concept="2qgKlT" id="7oamhfs0V3t" role="2OqNvi">
@@ -8897,7 +8891,7 @@
                         </node>
                         <node concept="2OqwBi" id="7oamhfs0NiT" role="3K4Cdx">
                           <node concept="37vLTw" id="7oamhfs0MGe" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4ptnK4jbwIL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hM" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="7oamhfs0OWt" role="2OqNvi">
                             <node concept="chp4Y" id="7oamhfs0P9k" role="cj9EA">
@@ -8907,7 +8901,7 @@
                         </node>
                         <node concept="2OqwBi" id="7oamhfs0MlF" role="3K4GZi">
                           <node concept="37vLTw" id="7oamhfs0MlG" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4ptnK4jbwIL" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hM" resolve="it" />
                           </node>
                           <node concept="3JvlWi" id="7oamhfs0MlH" role="2OqNvi" />
                         </node>
@@ -8929,9 +8923,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4ptnK4jbwIL" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817hM" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4ptnK4jbwIM" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817hN" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -9094,7 +9088,7 @@
                     <node concept="3clFbF" id="7S4tmubD4HZ" role="3cqZAp">
                       <node concept="2OqwBi" id="7S4tmubD4UY" role="3clFbG">
                         <node concept="37vLTw" id="7S4tmubD4HY" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7S4tmubD4HR" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817hO" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="7S4tmubD5al" role="2OqNvi">
                           <ref role="37wK5l" node="7S4tmubD2lA" resolve="renderReadable" />
@@ -9102,9 +9096,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7S4tmubD4HR" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817hO" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7S4tmubD4HS" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817hP" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/constraints.mps
index c3837eb52c..ee12d145f7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/constraints.mps
@@ -98,7 +98,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -162,6 +162,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -243,7 +244,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -262,7 +263,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -400,7 +400,7 @@
                       <node concept="3clFbF" id="1F1F0IUZBpP" role="3cqZAp">
                         <node concept="2OqwBi" id="1F1F0IUZBpQ" role="3clFbG">
                           <node concept="37vLTw" id="1F1F0IUZBpR" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1F1F0IUZBpT" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hQ" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="1F1F0IUZBpS" role="2OqNvi">
                             <ref role="3TsBF5" to="zzzn:2uR5X5azvjH" resolve="ext" />
@@ -408,9 +408,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZBpT" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817hQ" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZBpU" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817hR" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -468,7 +468,7 @@
                                 <node concept="2OqwBi" id="3Q$zA1CCeTG" role="2Oq$k0">
                                   <node concept="2OqwBi" id="3Q$zA1CCeTH" role="2Oq$k0">
                                     <node concept="37vLTw" id="3Q$zA1CCeTI" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="1F1F0IUZB_0" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817hS" resolve="it" />
                                     </node>
                                     <node concept="3Tsc0h" id="3Q$zA1CCeTJ" role="2OqNvi">
                                       <ref role="3TtcxE" to="zzzn:49WTic8eSCZ" resolve="args" />
@@ -493,9 +493,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZB_0" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817hS" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZB_1" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817hT" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -821,14 +821,14 @@
                             <ref role="3cqZAo" node="1F1F0IUZB1w" resolve="td" />
                           </node>
                           <node concept="37vLTw" id="1F1F0IUZB8q" role="3uHU7B">
-                            <ref role="3cqZAo" node="1F1F0IUZB8r" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817hU" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1F1F0IUZB8r" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817hU" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1F1F0IUZB8s" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817hV" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1040,7 +1040,7 @@
                         <node concept="3fqX7Q" id="MIkgqljJgy" role="3clFbG">
                           <node concept="2OqwBi" id="MIkgqljJg$" role="3fr31v">
                             <node concept="37vLTw" id="MIkgqljJg_" role="2Oq$k0">
-                              <ref role="3cqZAo" node="MIkgqljHBx" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817hW" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="MIkgqljJgA" role="2OqNvi">
                               <ref role="37wK5l" to="nu60:MIkgqljGnG" resolve="hasItsOwnType" />
@@ -1049,9 +1049,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="MIkgqljHBx" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817hW" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="MIkgqljHBy" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817hX" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1373,7 +1373,7 @@
                           <node concept="3clFbF" id="4zsmO3KsRvU" role="3cqZAp">
                             <node concept="2OqwBi" id="4zsmO3KsRvV" role="3clFbG">
                               <node concept="37vLTw" id="4zsmO3KsRvW" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4zsmO3KsRvY" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817hY" resolve="it" />
                               </node>
                               <node concept="2qgKlT" id="4zsmO3KsRvX" role="2OqNvi">
                                 <ref role="37wK5l" to="nu60:olugnm0Egc" resolve="effectiveLiterals" />
@@ -1381,9 +1381,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="4zsmO3KsRvY" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817hY" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="4zsmO3KsRvZ" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817hZ" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1426,7 +1426,7 @@
                                 <node concept="3fqX7Q" id="4zsmO3KsWES" role="3clFbG">
                                   <node concept="2OqwBi" id="4zsmO3KsWET" role="3fr31v">
                                     <node concept="37vLTw" id="4zsmO3KsWEU" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="4zsmO3KsWEW" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817i0" resolve="it" />
                                     </node>
                                     <node concept="3TrcHB" id="4zsmO3KsWEV" role="2OqNvi">
                                       <ref role="3TsBF5" to="yv47:67Y8mp$M9cx" resolve="qualified" />
@@ -1435,9 +1435,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="4zsmO3KsWEW" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817i0" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="4zsmO3KsWEX" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817i1" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -1448,7 +1448,7 @@
                             <node concept="3clFbF" id="4zsmO3KsWF1" role="3cqZAp">
                               <node concept="2OqwBi" id="4zsmO3KsWF2" role="3clFbG">
                                 <node concept="37vLTw" id="4zsmO3KsWF3" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4zsmO3KsWF5" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817i2" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="4zsmO3KsWF4" role="2OqNvi">
                                   <ref role="37wK5l" to="nu60:olugnm0Egc" resolve="effectiveLiterals" />
@@ -1456,9 +1456,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="4zsmO3KsWF5" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817i2" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="4zsmO3KsWF6" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817i3" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -2038,7 +2038,7 @@
                       <node concept="3clFbF" id="4zsmO3KwfuR" role="3cqZAp">
                         <node concept="2OqwBi" id="4zsmO3KwfWp" role="3clFbG">
                           <node concept="37vLTw" id="4zsmO3KwfuQ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4zsmO3Kwfoj" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817i4" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="4zsmO3Kwgv7" role="2OqNvi">
                             <ref role="3TsBF5" to="yv47:67Y8mp$M9cx" resolve="qualified" />
@@ -2046,9 +2046,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4zsmO3Kwfoj" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817i4" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4zsmO3Kwfok" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817i5" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2167,7 +2167,7 @@
                         <node concept="2OqwBi" id="6XnzqFdpaOD" role="3clFbG">
                           <node concept="2OqwBi" id="6XnzqFdp93E" role="2Oq$k0">
                             <node concept="37vLTw" id="6XnzqFdp8B8" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6XnzqFdp8hj" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b26C" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="6XnzqFdpau1" role="2OqNvi">
                               <ref role="37wK5l" to="pbu6:4WLweXm3SW5" resolve="type" />
@@ -2179,9 +2179,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6XnzqFdp8hj" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1b26C" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6XnzqFdp8hk" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1b26D" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/editor.mps
index 59a2a06141..92541ccc35 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/editor.mps
@@ -2,15 +2,15 @@
 <model ref="r:1d6bd88a-7393-4b32-b0e6-2d8b3094776e(org.iets3.core.expr.toplevel.editor)">
   <persistence version="9" />
   <languages>
-    <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="14" />
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="2" />
-    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
+    <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="-1" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
+    <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="-1" />
+    <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
     <use id="3bdedd09-792a-4e15-a4db-83970df3ee86" name="de.itemis.mps.editor.collapsible" version="-1" />
     <use id="1919c723-b60b-4592-9318-9ce96d91da44" name="de.itemis.mps.editor.celllayout" version="-1" />
-    <use id="120e1c9d-4e27-4478-b2af-b2c3bd3850b0" name="com.mbeddr.mpsutil.editor.querylist" version="0" />
-    <use id="774bf8a0-62e5-41e1-af63-f4812e60e48b" name="jetbrains.mps.baseLanguage.checkedDots" version="0" />
+    <use id="120e1c9d-4e27-4478-b2af-b2c3bd3850b0" name="com.mbeddr.mpsutil.editor.querylist" version="-1" />
+    <use id="774bf8a0-62e5-41e1-af63-f4812e60e48b" name="jetbrains.mps.baseLanguage.checkedDots" version="-1" />
     <use id="13744753-c81f-424a-9c1b-cf8943bf4e86" name="jetbrains.mps.lang.sharedConcepts" version="0" />
     <devkit ref="fbc25dd2-5da4-483a-8b19-70928e1b62d7(jetbrains.mps.devkit.general-purpose)" />
   </languages>
@@ -62,7 +62,7 @@
       <concept id="1402906326895675325" name="jetbrains.mps.lang.editor.structure.CellActionMap_FunctionParm_selectedNode" flags="nn" index="0IXxy" />
       <concept id="5991739802479784074" name="jetbrains.mps.lang.editor.structure.MenuTypeNamed" flags="ng" index="22hDWg" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -105,7 +105,7 @@
       <concept id="1237385578942" name="jetbrains.mps.lang.editor.structure.IndentLayoutOnNewLineStyleClassItem" flags="ln" index="pVoyu" />
       <concept id="1233148810477" name="jetbrains.mps.lang.editor.structure.InlineStyleDeclaration" flags="ng" index="tppnM" />
       <concept id="1177327570013" name="jetbrains.mps.lang.editor.structure.QueryFunction_SubstituteMenu_Substitute" flags="in" index="ucgPf" />
-      <concept id="8478191136883534237" name="jetbrains.mps.lang.editor.structure.IExtensibleSubstituteMenuPart" flags="ng" index="upBLQ">
+      <concept id="8478191136883534237" name="jetbrains.mps.lang.editor.structure.IExtensibleSubstituteMenuPart" flags="ngI" index="upBLQ">
         <child id="8478191136883534238" name="features" index="upBLP" />
       </concept>
       <concept id="7991857262589831666" name="jetbrains.mps.lang.editor.structure.ConceptFunctionParameter_prevNode" flags="nn" index="uCyS$" />
@@ -197,15 +197,15 @@
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
       <concept id="4647688914602775700" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_TransformationMenu_targetNode" flags="ng" index="X5bN_" />
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
       <concept id="1630016958697286851" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_parameterObject" flags="ng" index="2ZBlsa" />
-      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ng" index="2ZBHr6">
+      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ngI" index="2ZBHr6">
         <child id="1630016958697057552" name="parameterType" index="2ZBHrp" />
       </concept>
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
@@ -258,7 +258,7 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="772883491827578824" name="jetbrains.mps.lang.editor.structure.CompletionCustomization_CustomizeFunction" flags="ig" index="3lBaaS" />
@@ -296,12 +296,12 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
-      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ng" index="1FNN41">
+      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ngI" index="1FNN41">
         <child id="843003353410424960" name="outputConceptReference" index="1FNMel" />
       </concept>
       <concept id="843003353410421233" name="jetbrains.mps.lang.editor.structure.OptionalConceptReference" flags="ng" index="1FNNb$">
@@ -315,7 +315,7 @@
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
       <concept id="5624877018226900666" name="jetbrains.mps.lang.editor.structure.TransformationMenu" flags="ng" index="3ICUPy" />
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="6419604448124516209" name="jetbrains.mps.lang.editor.structure.QueryFunction_IsMethodCurrent" flags="in" index="3LVrda" />
@@ -366,7 +366,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -482,7 +482,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -500,7 +500,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -529,6 +529,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -550,7 +551,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G">
@@ -565,7 +566,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -681,7 +682,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -728,7 +729,6 @@
         <child id="1235573187520" name="singletonValue" index="2HTEbv" />
       </concept>
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -3685,7 +3685,7 @@
                       <node concept="17R0WA" id="4jf2Bbg3WnS" role="3uHU7w">
                         <node concept="2OqwBi" id="LBlPJUzjy0" role="3uHU7B">
                           <node concept="37vLTw" id="2BHiRxgmtw8" role="2Oq$k0">
-                            <ref role="3cqZAo" node="LBlPJUzjy9" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817i6" resolve="it" />
                           </node>
                           <node concept="2NL2c5" id="4jf2Bbg3VqC" role="2OqNvi" />
                         </node>
@@ -3700,7 +3700,7 @@
                         </node>
                         <node concept="2OqwBi" id="LBlPJUzjy4" role="3uHU7B">
                           <node concept="37vLTw" id="2BHiRxglFWd" role="2Oq$k0">
-                            <ref role="3cqZAo" node="LBlPJUzjy9" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817i6" resolve="it" />
                           </node>
                           <node concept="1mfA1w" id="LBlPJUzjy6" role="2OqNvi" />
                         </node>
@@ -3708,9 +3708,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="LBlPJUzjy9" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817i6" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1P4c1XrzTlB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817i7" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/plugin.mps
index 4acc15ecf7..78bf1fde4e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/plugin.mps
@@ -57,7 +57,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -115,7 +115,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ" />
@@ -185,7 +185,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -208,7 +208,7 @@
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -250,6 +250,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -324,7 +325,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -383,7 +384,6 @@
       <concept id="1201306600024" name="jetbrains.mps.baseLanguage.collections.structure.ContainsKeyOperation" flags="nn" index="2Nt0df">
         <child id="1201654602639" name="key" index="38cxEo" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -1586,7 +1586,7 @@
                         <node concept="3clFbF" id="2nByCcxYwJH" role="3cqZAp">
                           <node concept="2OqwBi" id="2nByCcxYwJI" role="3clFbG">
                             <node concept="37vLTw" id="2nByCcxYwJJ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2nByCcxYwJL" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817is" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="2nByCcxYwJK" role="2OqNvi">
                               <ref role="37wK5l" to="nu60:2nByCcxXVT$" resolve="allArgsPure" />
@@ -1594,9 +1594,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2nByCcxYwJL" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817is" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2nByCcxYwJM" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817it" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2343,7 +2343,7 @@
                               <ref role="37wK5l" node="1yE6u6GpNIK" resolve="getInstance" />
                               <ref role="1Pybhc" node="365yA_OO5FT" resolve="EnumLiteral" />
                               <node concept="37vLTw" id="1yE6u6Gqan3" role="37wK5m">
-                                <ref role="3cqZAo" node="1yE6u6GoxYv" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1b26y" resolve="it" />
                               </node>
                               <node concept="37vLTw" id="1yE6u6GqjFV" role="37wK5m">
                                 <ref role="3cqZAo" node="1yE6u6Gpw5X" resolve="context" />
@@ -2353,9 +2353,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1yE6u6GoxYv" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1b26y" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1yE6u6GoxYw" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1b26z" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2373,24 +2373,24 @@
                         <node concept="3clFbF" id="1yE6u6Gr7FS" role="3cqZAp">
                           <node concept="2OqwBi" id="1yE6u6Gr8iZ" role="3clFbG">
                             <node concept="37vLTw" id="1yE6u6Gr7FR" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1yE6u6GqSGj" resolve="a" />
+                              <ref role="3cqZAo" node="2FZhxW1b26$" resolve="a" />
                             </node>
                             <node concept="liA8E" id="1yE6u6GramL" role="2OqNvi">
                               <ref role="37wK5l" node="365yA_OO6AK" resolve="compareTo" />
                               <node concept="37vLTw" id="1yE6u6Grbnq" role="37wK5m">
-                                <ref role="3cqZAo" node="1yE6u6GqSGl" resolve="b" />
+                                <ref role="3cqZAo" node="2FZhxW1b26A" resolve="b" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1yE6u6GqSGj" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1b26$" role="1bW2Oz">
                         <property role="TrG5h" value="a" />
-                        <node concept="2jxLKc" id="1yE6u6GqSGk" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1b26_" role="1tU5fm" />
                       </node>
-                      <node concept="Rh6nW" id="1yE6u6GqSGl" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1b26A" role="1bW2Oz">
                         <property role="TrG5h" value="b" />
-                        <node concept="2jxLKc" id="1yE6u6GqSGm" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1b26B" role="1tU5fm" />
                       </node>
                     </node>
                     <node concept="1nlBCl" id="1yE6u6GqSGn" role="2Dq5b$">
@@ -2842,7 +2842,7 @@
                                 <ref role="37wK5l" node="7_$HJtBvdxi" resolve="getValueByName" />
                                 <node concept="2OqwBi" id="3IFv_upIB2u" role="37wK5m">
                                   <node concept="37vLTw" id="3IFv_upIB2v" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3IFv_upIB2O" resolve="mapping" />
+                                    <ref role="3cqZAo" node="79LXaAamJAG" resolve="mapping" />
                                   </node>
                                   <node concept="3AY5_j" id="3IFv_upIB2w" role="2OqNvi" />
                                 </node>
@@ -2885,7 +2885,7 @@
                             <node concept="3cpWs3" id="3IFv_upIB2J" role="3uHU7B">
                               <node concept="2OqwBi" id="3IFv_upIB2K" role="3uHU7B">
                                 <node concept="37vLTw" id="3IFv_upIB2L" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3IFv_upIB2O" resolve="mapping" />
+                                  <ref role="3cqZAo" node="79LXaAamJAG" resolve="mapping" />
                                 </node>
                                 <node concept="3AY5_j" id="3IFv_upIB2M" role="2OqNvi" />
                               </node>
@@ -2896,9 +2896,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3IFv_upIB2O" role="1bW2Oz">
+                      <node concept="gl6BB" id="79LXaAamJAG" role="1bW2Oz">
                         <property role="TrG5h" value="mapping" />
-                        <node concept="2jxLKc" id="3IFv_upIB2P" role="1tU5fm" />
+                        <node concept="2jxLKc" id="79LXaAamJAH" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3034,7 +3034,7 @@
                           <node concept="3clFbF" id="763_liNzGKY" role="3cqZAp">
                             <node concept="2OqwBi" id="763_liNzGKZ" role="3clFbG">
                               <node concept="37vLTw" id="763_liNzGL0" role="2Oq$k0">
-                                <ref role="3cqZAo" node="763_liNzGL2" resolve="it" />
+                                <ref role="3cqZAo" node="79LXaAamJAI" resolve="it" />
                               </node>
                               <node concept="liA8E" id="763_liNzGL1" role="2OqNvi">
                                 <ref role="37wK5l" node="763_liNzEd1" resolve="getPriority" />
@@ -3042,9 +3042,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="763_liNzGL2" role="1bW2Oz">
+                        <node concept="gl6BB" id="79LXaAamJAI" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="763_liNzGL3" role="1tU5fm" />
+                          <node concept="2jxLKc" id="79LXaAamJAJ" role="1tU5fm" />
                         </node>
                       </node>
                       <node concept="1nlBCl" id="763_liNzGL4" role="2S7zOq">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/structure.mps
index 85b22ff0f8..1f4af6864a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/structure.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="-1" />
-    <use id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure" version="9" />
+    <use id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure" version="-1" />
     <devkit ref="78434eb8-b0e5-444b-850d-e7c4ad2da9ab(jetbrains.mps.devkit.aspect.structure)" />
   </languages>
   <imports>
@@ -71,7 +71,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -610,17 +610,17 @@
       <property role="IQ2ns" value="7061117989422575348" />
       <ref role="20lvS9" node="67Y8mp$DMVh" resolve="EnumLiteral" />
     </node>
+    <node concept="1TJgyi" id="67Y8mp$M9cx" role="1TKVEl">
+      <property role="TrG5h" value="qualified" />
+      <property role="IQ2nx" value="7061117989424763681" />
+      <ref role="AX2Wp" to="tpck:fKAQMTB" resolve="boolean" />
+    </node>
     <node concept="1TJgyj" id="6PMVc5H_jOd" role="1TKVEi">
       <property role="IQ2ns" value="7886626212990500109" />
       <property role="20lmBu" value="fLJjDmT/aggregation" />
       <property role="20kJfa" value="order" />
       <ref role="20lvS9" node="wlV$3kt3Ry" resolve="AbstractEnumSortOrder" />
     </node>
-    <node concept="1TJgyi" id="67Y8mp$M9cx" role="1TKVEl">
-      <property role="TrG5h" value="qualified" />
-      <property role="IQ2nx" value="7061117989424763681" />
-      <ref role="AX2Wp" to="tpck:fKAQMTB" resolve="boolean" />
-    </node>
   </node>
   <node concept="1TIwiD" id="67Y8mp$DMVh">
     <property role="3GE5qa" value="enum" />
@@ -1282,11 +1282,12 @@
       <ref role="20lvS9" node="xu7xcKdQCB" resolve="IRecordMember" />
     </node>
   </node>
-  <node concept="1TIwiD" id="6PMVc5H_jNZ">
-    <property role="EcuMT" value="7886626212990500095" />
+  <node concept="1TIwiD" id="6PMVc5H_jO5">
+    <property role="EcuMT" value="7886626212990500101" />
     <property role="3GE5qa" value="enum" />
-    <property role="TrG5h" value="EnumSortByLiteral" />
-    <property role="34LRSv" value="by literal" />
+    <property role="TrG5h" value="EnumSortByDeclaration" />
+    <property role="34LRSv" value="by declaration" />
+    <property role="R4oN_" value="order by occurence within declaration " />
     <ref role="1TJDcQ" node="wlV$3kt3Ry" resolve="AbstractEnumSortOrder" />
   </node>
   <node concept="1TIwiD" id="6PMVc5H_jO2">
@@ -1296,19 +1297,18 @@
     <property role="34LRSv" value="by value" />
     <ref role="1TJDcQ" node="wlV$3kt3Ry" resolve="AbstractEnumSortOrder" />
   </node>
-  <node concept="1TIwiD" id="6PMVc5H_jO5">
-    <property role="EcuMT" value="7886626212990500101" />
-    <property role="3GE5qa" value="enum" />
-    <property role="TrG5h" value="EnumSortByDeclaration" />
-    <property role="34LRSv" value="by declaration" />
-    <property role="R4oN_" value="order by occurence within declaration " />
-    <ref role="1TJDcQ" node="wlV$3kt3Ry" resolve="AbstractEnumSortOrder" />
-  </node>
   <node concept="1TIwiD" id="wlV$3kt3Ry">
     <property role="TrG5h" value="AbstractEnumSortOrder" />
     <property role="3GE5qa" value="enum" />
     <property role="EcuMT" value="7886626212990500094" />
     <property role="R5$K7" value="true" />
   </node>
+  <node concept="1TIwiD" id="6PMVc5H_jNZ">
+    <property role="EcuMT" value="7886626212990500095" />
+    <property role="3GE5qa" value="enum" />
+    <property role="TrG5h" value="EnumSortByLiteral" />
+    <property role="34LRSv" value="by literal" />
+    <ref role="1TJDcQ" node="wlV$3kt3Ry" resolve="AbstractEnumSortOrder" />
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/typesystem.mps
index ef8626d2d9..b2a81ee140 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/typesystem.mps
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:8023e40c-26d4-4543-bd46-2ec2c03f861f(org.iets3.core.expr.toplevel.typesystem)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="2" />
@@ -105,7 +106,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -137,6 +138,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -333,7 +335,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -371,7 +373,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -437,7 +438,7 @@
                     </node>
                     <node concept="2OqwBi" id="ub9nkyP0HI" role="3uHU7B">
                       <node concept="37vLTw" id="ub9nkyP0Dp" role="2Oq$k0">
-                        <ref role="3cqZAo" node="ub9nkyP0$l" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817ia" resolve="it" />
                       </node>
                       <node concept="3TrEf2" id="ub9nkyP0OT" role="2OqNvi">
                         <ref role="3Tt5mk" to="zzzn:49WTic8gvyC" resolve="function" />
@@ -446,9 +447,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="ub9nkyP0$l" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817ia" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="ub9nkyP0$m" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817ib" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -605,7 +606,7 @@
                               </node>
                               <node concept="2OqwBi" id="1bwJEEfjwbm" role="3uHU7B">
                                 <node concept="37vLTw" id="1bwJEEfjwbn" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1bwJEEfjwbp" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817ic" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="1bwJEEfjwbo" role="2OqNvi">
                                   <ref role="3Tt5mk" to="zzzn:49WTic8ggq6" resolve="arg" />
@@ -614,9 +615,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="1bwJEEfjwbp" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817ic" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="1bwJEEfjwbq" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817id" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -736,12 +737,12 @@
           </node>
         </node>
         <node concept="3y3z36" id="49WTic8gyr6" role="3clFbw">
-          <node concept="37vLTw" id="3eH6BL4eAN2" role="3uHU7w">
-            <ref role="3cqZAo" node="3eH6BL4eAMS" resolve="expectedSize" />
-          </node>
           <node concept="37vLTw" id="3eH6BL4eAWw" role="3uHU7B">
             <ref role="3cqZAo" node="3eH6BL4eAWq" resolve="actualSize" />
           </node>
+          <node concept="37vLTw" id="3eH6BL4eAN2" role="3uHU7w">
+            <ref role="3cqZAo" node="3eH6BL4eAMS" resolve="expectedSize" />
+          </node>
         </node>
         <node concept="9aQIb" id="49WTic8gDnv" role="9aQIa">
           <node concept="3clFbS" id="49WTic8gDnw" role="9aQI4">
@@ -1075,12 +1076,12 @@
                   </node>
                 </node>
                 <node concept="3y3z36" id="7D7uZV2o8Jt" role="3clFbw">
-                  <node concept="37vLTw" id="3eH6BL4eF4s" role="3uHU7w">
-                    <ref role="3cqZAo" node="3eH6BL4eF4o" resolve="expectedSize" />
-                  </node>
                   <node concept="37vLTw" id="3eH6BL4eG1G" role="3uHU7B">
                     <ref role="3cqZAo" node="3eH6BL4eG1C" resolve="actualSize" />
                   </node>
+                  <node concept="37vLTw" id="3eH6BL4eF4s" role="3uHU7w">
+                    <ref role="3cqZAo" node="3eH6BL4eF4o" resolve="expectedSize" />
+                  </node>
                 </node>
                 <node concept="9aQIb" id="7D7uZV2p37r" role="9aQIa">
                   <node concept="3clFbS" id="7D7uZV2p37s" role="9aQI4">
@@ -1173,12 +1174,12 @@
                         </node>
                       </node>
                       <node concept="3eOVzh" id="7D7uZV2p3fj" role="1Dwp0S">
-                        <node concept="37vLTw" id="3eH6BL4eG1H" role="3uHU7w">
-                          <ref role="3cqZAo" node="3eH6BL4eG1C" resolve="actualSize" />
-                        </node>
                         <node concept="37vLTw" id="7D7uZV2p38T" role="3uHU7B">
                           <ref role="3cqZAo" node="7D7uZV2p38e" resolve="i" />
                         </node>
+                        <node concept="37vLTw" id="3eH6BL4eG1H" role="3uHU7w">
+                          <ref role="3cqZAo" node="3eH6BL4eG1C" resolve="actualSize" />
+                        </node>
                       </node>
                       <node concept="3uNrnE" id="7D7uZV2p54a" role="1Dwrff">
                         <node concept="37vLTw" id="7D7uZV2p54c" role="2$L3a6">
@@ -1875,7 +1876,7 @@
                             <node concept="2OqwBi" id="3eH6BL4B3CR" role="3clFbG">
                               <node concept="2OqwBi" id="3eH6BL4B3CS" role="2Oq$k0">
                                 <node concept="37vLTw" id="3eH6BL4B3CT" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3eH6BL4B3CW" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3X1T" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="3eH6BL4B3CU" role="2OqNvi">
                                   <ref role="3Tt5mk" to="yv47:3Y6fbK15FM4" resolve="value" />
@@ -1885,9 +1886,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="3eH6BL4B3CW" role="1bW2Oz">
+                        <node concept="gl6BB" id="EsIH9l3X1T" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="3eH6BL4B3CX" role="1tU5fm" />
+                          <node concept="2jxLKc" id="EsIH9l3X1U" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1904,7 +1905,7 @@
                             <node concept="2OqwBi" id="3eH6BL4B3D2" role="1m5AlR">
                               <node concept="2OqwBi" id="3eH6BL4B3D3" role="2Oq$k0">
                                 <node concept="37vLTw" id="3eH6BL4B3D4" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3eH6BL4B3D7" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3X1V" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="3eH6BL4B3D5" role="2OqNvi">
                                   <ref role="3Tt5mk" to="yv47:3Y6fbK15FM4" resolve="value" />
@@ -1915,9 +1916,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3eH6BL4B3D7" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l3X1V" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3eH6BL4B3D8" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l3X1W" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2332,6 +2333,9 @@
         <node concept="3clFbS" id="RIvadv3a$u" role="3clFbx">
           <node concept="2MkqsV" id="RIvadv3hzr" role="3cqZAp">
             <node concept="3cpWs3" id="RIvadv3hLX" role="2MkJ7o">
+              <node concept="Xl_RD" id="RIvadv3hzE" role="3uHU7B">
+                <property role="Xl_RC" value="cycle between elements detected: " />
+              </node>
               <node concept="2OqwBi" id="3eH6BL4et7_" role="3uHU7w">
                 <node concept="2OqwBi" id="3eH6BL4er3C" role="2Oq$k0">
                   <node concept="37vLTw" id="RIvadv3hMj" role="2Oq$k0">
@@ -2343,7 +2347,7 @@
                         <node concept="3clFbF" id="3eH6BL4es0x" role="3cqZAp">
                           <node concept="2OqwBi" id="3eH6BL4esnG" role="3clFbG">
                             <node concept="37vLTw" id="3eH6BL4es0w" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3eH6BL4erUQ" resolve="it" />
+                              <ref role="3cqZAo" node="EsIH9l3X1X" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="3eH6BL4esML" role="2OqNvi">
                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2351,9 +2355,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3eH6BL4erUQ" role="1bW2Oz">
+                      <node concept="gl6BB" id="EsIH9l3X1X" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3eH6BL4erUR" role="1tU5fm" />
+                        <node concept="2jxLKc" id="EsIH9l3X1Y" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2364,9 +2368,6 @@
                   </node>
                 </node>
               </node>
-              <node concept="Xl_RD" id="RIvadv3hzE" role="3uHU7B">
-                <property role="Xl_RC" value="cycle between elements detected: " />
-              </node>
             </node>
             <node concept="1YBJjd" id="2Fd5B1gx_s7" role="1urrMF">
               <ref role="1YBMHb" node="2Fd5B1gx$72" resolve="constant" />
@@ -3956,7 +3957,7 @@
                           </node>
                           <node concept="2OqwBi" id="5YygIlc4ohm" role="3uHU7B">
                             <node concept="37vLTw" id="5YygIlc4sRW" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5YygIlc4sIv" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ik" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="5YygIlc4tqN" role="2OqNvi">
                               <ref role="3Tt5mk" to="yv47:SRvqsNmWci" resolve="member" />
@@ -3965,9 +3966,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5YygIlc4sIv" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817ik" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5YygIlc4sIw" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817il" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -3977,7 +3978,7 @@
                   <node concept="3clFbS" id="5YygIlc4u7j" role="1bW5cS">
                     <node concept="2MkqsV" id="5YygIlc4uam" role="3cqZAp">
                       <node concept="37vLTw" id="5YygIlc4vqf" role="1urrMF">
-                        <ref role="3cqZAo" node="5YygIlc4u7k" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817im" resolve="it" />
                       </node>
                       <node concept="2YIFZM" id="3eH6BL4eyl3" role="2MkJ7o">
                         <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...)" resolve="format" />
@@ -3996,9 +3997,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5YygIlc4u7k" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817im" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5YygIlc4u7l" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817in" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4261,7 +4262,7 @@
                   <ref role="JncvD" to="hm2y:7halHeUzscN" resolve="PrimitiveLiteral" />
                   <node concept="2OqwBi" id="Y$AzCx8nqC" role="JncvB">
                     <node concept="37vLTw" id="Y$AzCx8ndN" role="2Oq$k0">
-                      <ref role="3cqZAo" node="Y$AzCx8eUg" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817io" resolve="it" />
                     </node>
                     <node concept="3TrEf2" id="Y$AzCx8nH7" role="2OqNvi">
                       <ref role="3Tt5mk" to="yv47:3Y6fbK15FM4" resolve="value" />
@@ -4356,7 +4357,7 @@
                   <ref role="JncvD" to="yv47:67Y8mp$DNr5" resolve="EnumLiteralRef" />
                   <node concept="2OqwBi" id="Y$AzCx8zn5" role="JncvB">
                     <node concept="37vLTw" id="Y$AzCx8z89" role="2Oq$k0">
-                      <ref role="3cqZAo" node="Y$AzCx8eUg" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817io" resolve="it" />
                     </node>
                     <node concept="3TrEf2" id="Y$AzCx8zFa" role="2OqNvi">
                       <ref role="3Tt5mk" to="yv47:3Y6fbK15FM4" resolve="value" />
@@ -4399,9 +4400,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="Y$AzCx8eUg" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817io" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="Y$AzCx8eUh" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817ip" role="1tU5fm" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/org.iets3.core.expr.toplevel.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/org.iets3.core.expr.toplevel.mpl
index 08eb187914..844aa1c8f2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/org.iets3.core.expr.toplevel.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/org.iets3.core.expr.toplevel.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -34,6 +33,7 @@
     <dependency reexport="false">3f233e7f-b8a6-46d2-a57f-795d56775243(Annotations)</dependency>
     <dependency reexport="false">24c96a96-b7a1-4f30-82da-0f8e279a2661(de.itemis.mps.editor.celllayout.styles)</dependency>
     <dependency reexport="false">52a8c4c0-f4b0-4243-bf00-9dfac3472876(org.iets3.core.expr.simpleTypes.runtime)</dependency>
+    <dependency reexport="false">98b3b6eb-9d60-4e29-9afb-762ac8948292(jetbrains.mps.ide.refactoring.platform)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:677f00fb-4488-405e-9885-abb75d472fd1:com.mbeddr.mpsutil.contextactions" version="0" />
@@ -48,7 +48,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -77,7 +77,7 @@
     <language slang="l:90746344-04fd-4286-97d5-b46ae6a81709:jetbrains.mps.lang.migration" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
@@ -126,6 +126,7 @@
     <module reference="23865718-e2ed-41b5-a132-0da1d04e266d(jetbrains.mps.ide.httpsupport.manager)" version="0" />
     <module reference="ae6d8005-36be-4cb6-945b-8c8cfc033c51(jetbrains.mps.ide.httpsupport.runtime)" version="0" />
     <module reference="8d29d73f-ed99-4652-ae0a-083cdfe53c34(jetbrains.mps.ide.platform)" version="0" />
+    <module reference="98b3b6eb-9d60-4e29-9afb-762ac8948292(jetbrains.mps.ide.refactoring.platform)" version="0" />
     <module reference="2d3c70e9-aab2-4870-8d8d-6036800e4103(jetbrains.mps.kernel)" version="0" />
     <module reference="d936855b-48da-4812-a8a0-2bfddd633ac5(jetbrains.mps.lang.behavior.api)" version="0" />
     <module reference="ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)" version="0" />
@@ -135,7 +136,6 @@
     <module reference="7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)" version="1" />
     <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
-    <module reference="8fe4c62a-2020-4ff4-8eda-f322a55bdc9f(jetbrains.mps.refactoring.runtime)" version="0" />
     <module reference="db8bd035-3f51-41d8-8fed-954c202d18be(org.iets3.analysis.base)" version="1" />
     <module reference="7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)" version="0" />
     <module reference="cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)" version="4" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/editor.mps
index ee9ff5368a..537fc33b6c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/editor.mps
@@ -2,12 +2,12 @@
 <model ref="r:e2d5029d-edd9-44e0-9764-dc3ac8433eaf(org.iets3.core.expr.tracing.editor)">
   <persistence version="9" />
   <languages>
-    <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="14" />
-    <use id="b8bb702e-43ed-4090-a902-d180d3e5f292" name="de.slisson.mps.conditionalEditor" version="0" />
-    <use id="1919c723-b60b-4592-9318-9ce96d91da44" name="de.itemis.mps.editor.celllayout" version="0" />
-    <use id="b33d119e-196d-4497-977c-5c167b21fe33" name="com.mbeddr.mpsutil.framecell" version="0" />
-    <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
+    <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="-1" />
+    <use id="b8bb702e-43ed-4090-a902-d180d3e5f292" name="de.slisson.mps.conditionalEditor" version="-1" />
+    <use id="1919c723-b60b-4592-9318-9ce96d91da44" name="de.itemis.mps.editor.celllayout" version="-1" />
+    <use id="b33d119e-196d-4497-977c-5c167b21fe33" name="com.mbeddr.mpsutil.framecell" version="-1" />
+    <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="-1" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
   </languages>
   <imports>
@@ -107,7 +107,7 @@
         <child id="1106270802874" name="cellLayout" index="2iSdaV" />
         <child id="1073389446424" name="childCellModel" index="3EZMnx" />
       </concept>
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1225898583838" name="jetbrains.mps.lang.editor.structure.ReadOnlyModelAccessor" flags="ng" index="1HfYo3">
@@ -243,7 +243,7 @@
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -263,7 +263,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1208890769693" name="jetbrains.mps.baseLanguage.structure.ArrayLengthOperation" flags="nn" index="1Rwk04" />
@@ -275,13 +275,14 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
       </concept>
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769149993" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodCallOperation" flags="nn" index="2XshWL">
@@ -316,7 +317,7 @@
       <concept id="1138055754698" name="jetbrains.mps.lang.smodel.structure.SNodeType" flags="in" index="3Tqbb2" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -341,7 +342,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
     </language>
   </registry>
@@ -1902,7 +1902,7 @@
                           <node concept="2OqwBi" id="5U8d23QlPI5" role="3uHU7B">
                             <node concept="2JrnkZ" id="5U8d23QlPof" role="2Oq$k0">
                               <node concept="37vLTw" id="5U8d23QlO$8" role="2JrQYb">
-                                <ref role="3cqZAo" node="5U8d23QlOnh" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817iu" resolve="it" />
                               </node>
                             </node>
                             <node concept="liA8E" id="5U8d23QlQhh" role="2OqNvi">
@@ -1916,9 +1916,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5U8d23QlOnh" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817iu" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5U8d23QlOni" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817iv" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/structure.mps
index fb06d644de..277a63e5a1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/structure.mps
@@ -25,7 +25,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/util.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/util.mps
index 5dec99ae0a..b4e7c185af 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/util.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/models/util.mps
@@ -86,7 +86,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -106,7 +106,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -121,7 +121,7 @@
       <concept id="1138055754698" name="jetbrains.mps.lang.smodel.structure.SNodeType" flags="in" index="3Tqbb2" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/org.iets3.core.expr.tracing.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/org.iets3.core.expr.tracing.mpl
index eef1e88856..10ef82a30c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/org.iets3.core.expr.tracing.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.tracing/org.iets3.core.expr.tracing.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -29,7 +28,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -48,7 +47,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/generator/templates/org.iets3.core.expr.typetags.bindingtime.generator.templates@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/generator/templates/org.iets3.core.expr.typetags.bindingtime.generator.templates@generator.mps
index 586d0c6ff4..11eeb5fc98 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/generator/templates/org.iets3.core.expr.typetags.bindingtime.generator.templates@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/generator/templates/org.iets3.core.expr.typetags.bindingtime.generator.templates@generator.mps
@@ -12,7 +12,7 @@
       <concept id="1095416546421" name="jetbrains.mps.lang.generator.structure.MappingConfiguration" flags="ig" index="bUwia" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.behavior.mps
index ea589e1ede..70cac5b98f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.behavior.mps
@@ -92,7 +92,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -101,7 +101,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -143,7 +143,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.editor.mps
index b4375d34e7..a818c95329 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.editor.mps
@@ -16,7 +16,7 @@
   <registry>
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -31,7 +31,7 @@
       <concept id="1078939183254" name="jetbrains.mps.lang.editor.structure.CellModel_Component" flags="sg" stub="3162947552742194261" index="PMmxH">
         <reference id="1078939183255" name="editorComponent" index="PMmxG" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -90,7 +90,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -124,7 +124,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.structure.mps
index f4b7f93e99..bf8d0b5574 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.structure.mps
@@ -49,7 +49,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.typesystem.mps
index 1cb2569352..7183d78595 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/models/org.iets3.core.expr.typetags.bindingtime.typesystem.mps
@@ -88,7 +88,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -164,7 +164,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/org.iets3.core.expr.typetags.bindingtime.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/org.iets3.core.expr.typetags.bindingtime.mpl
index dcffa00739..116a78a8a4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/org.iets3.core.expr.typetags.bindingtime.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.bindingtime/org.iets3.core.expr.typetags.bindingtime.mpl
@@ -27,7 +27,7 @@
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -93,7 +93,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -106,7 +105,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/generator/template/main@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/generator/template/main@generator.mps
index 88e11e9246..5bce7ada54 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/generator/template/main@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/generator/template/main@generator.mps
@@ -57,7 +57,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/behavior.mps
index bca9de3919..19688871f2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/behavior.mps
@@ -102,7 +102,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -115,7 +115,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -165,7 +165,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/editor.mps
index afce6d603c..03b8b3ff55 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/editor.mps
@@ -45,7 +45,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/plugin.mps
index c4b1405a50..a54a81f2da 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:d37e6782-feb5-44db-8a75-c73d548549ac(org.iets3.core.expr.typetags.lib.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
   </languages>
   <imports />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/structure.mps
index 51cad8b687..e396c40b9f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/structure.mps
@@ -39,7 +39,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/typesystem.mps
index 2f58f806fb..77acd9e52d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/models/org/iets3/core/expr/typetags/lib/typesystem.mps
@@ -53,12 +53,13 @@
       <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
         <child id="1068581517676" name="expression" index="3cqZAk" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -108,6 +109,7 @@
         <child id="1174660783413" name="leftExpression" index="1ZfhK$" />
         <child id="1174660783414" name="rightExpression" index="1ZfhKB" />
       </concept>
+      <concept id="1174663118805" name="jetbrains.mps.lang.typesystem.structure.CreateLessThanInequationStatement" flags="nn" index="1ZobV4" />
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
       <concept id="1177026924588" name="jetbrains.mps.lang.smodel.structure.RefConcept_Reference" flags="nn" index="chp4Y">
@@ -131,7 +133,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -139,32 +141,31 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
     </language>
   </registry>
   <node concept="1YbPZF" id="1xEzHAktRKd">
     <property role="TrG5h" value="typeof_TaintExpression" />
     <node concept="3clFbS" id="1xEzHAktRKe" role="18ibNy">
-      <node concept="1Z5TYs" id="6KxoTHgIOLy" role="3cqZAp">
-        <node concept="mw_s8" id="6KxoTHgIPW8" role="1ZfhKB">
-          <node concept="2YIFZM" id="5wDe8wA6zrO" role="mwGJk">
-            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
-            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
-          </node>
-        </node>
-        <node concept="mw_s8" id="6KxoTHgIOL_" role="1ZfhK$">
-          <node concept="1Z2H0r" id="6KxoTHgIOv9" role="mwGJk">
-            <node concept="2OqwBi" id="6KxoTHgIO$H" role="1Z2MuG">
-              <node concept="1YBJjd" id="6KxoTHgIOxQ" role="2Oq$k0">
+      <node concept="1ZobV4" id="hTGlT9G23K" role="3cqZAp">
+        <node concept="mw_s8" id="hTGlT9G23O" role="1ZfhK$">
+          <node concept="1Z2H0r" id="hTGlT9G23P" role="mwGJk">
+            <node concept="2OqwBi" id="hTGlT9G23Q" role="1Z2MuG">
+              <node concept="1YBJjd" id="hTGlT9G23R" role="2Oq$k0">
                 <ref role="1YBMHb" node="1xEzHAktRKg" resolve="expression" />
               </node>
-              <node concept="3TrEf2" id="6KxoTHgIOHD" role="2OqNvi">
+              <node concept="3TrEf2" id="hTGlT9G23S" role="2OqNvi">
                 <ref role="3Tt5mk" to="hm2y:4rZeNQ6NgXF" resolve="expr" />
               </node>
             </node>
           </node>
         </node>
+        <node concept="mw_s8" id="hTGlT9G23M" role="1ZfhKB">
+          <node concept="2YIFZM" id="hTGlT9G23N" role="mwGJk">
+            <ref role="37wK5l" to="xfg9:2Qbt$1tTQdA" resolve="createStringType" />
+            <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
+          </node>
+        </node>
       </node>
       <node concept="3clFbF" id="4HxogODQupC" role="3cqZAp">
         <node concept="2YIFZM" id="6n8rWbyNXo7" role="3clFbG">
@@ -354,7 +355,7 @@
                             <node concept="2OqwBi" id="sflsE7pzXW" role="3clFbG">
                               <node concept="2OqwBi" id="sflsE7pzXX" role="2Oq$k0">
                                 <node concept="37vLTw" id="sflsE7pzXY" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="sflsE7pzY2" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817ix" resolve="it" />
                                 </node>
                                 <node concept="3TrcHB" id="sflsE7pzXZ" role="2OqNvi">
                                   <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -369,9 +370,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="sflsE7pzY2" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817ix" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="sflsE7pzY3" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817iy" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/org.iets3.core.expr.typetags.lib.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/org.iets3.core.expr.typetags.lib.mpl
index db6a32d1a0..be9cfe9f44 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/org.iets3.core.expr.typetags.lib.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.lib/org.iets3.core.expr.typetags.lib.mpl
@@ -34,7 +34,7 @@
         <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -95,7 +95,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">71934284-d7d1-45ee-a054-8c072591085f(org.iets3.core.expr.toplevel)</dependency>
@@ -105,7 +104,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -124,7 +123,7 @@
     <language slang="l:18bc6592-03a6-4e29-a83a-7ff23bde13ba:jetbrains.mps.lang.editor" version="14" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.behavior.mps
index 8adf12e8d6..70eab2cfd1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.behavior.mps
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:720d563d-1633-46b3-a98e-08d2fde4c4a8(org.iets3.core.expr.typetags.physunits.behavior)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -130,7 +131,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -195,7 +196,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ">
@@ -281,7 +282,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -316,7 +317,7 @@
       <concept id="1184952934362" name="jetbrains.mps.baseLanguage.structure.DimensionExpression" flags="nn" index="3$GHV9">
         <child id="1184953288404" name="expression" index="3$I4v7" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -385,6 +386,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
         <child id="1235746996653" name="function" index="2SgG2M" />
         <child id="1235747002942" name="parameter" index="2SgHGx" />
@@ -424,7 +426,7 @@
       <concept id="2068944020170241612" name="jetbrains.mps.baseLanguage.javadoc.structure.ClassifierDocComment" flags="ng" index="3UR2Jj" />
     </language>
     <language id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation">
-      <concept id="1196350785110" name="jetbrains.mps.lang.quotation.structure.AbstractAntiquotation" flags="ng" index="2c44t0">
+      <concept id="1196350785110" name="jetbrains.mps.lang.quotation.structure.AbstractAntiquotation" flags="ngI" index="2c44t0">
         <child id="1196350785111" name="expression" index="2c44t1" />
       </concept>
       <concept id="1196350785112" name="jetbrains.mps.lang.quotation.structure.Antiquotation" flags="ng" index="2c44te" />
@@ -594,7 +596,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -667,7 +669,6 @@
       <concept id="1201306600024" name="jetbrains.mps.baseLanguage.collections.structure.ContainsKeyOperation" flags="nn" index="2Nt0df">
         <child id="1201654602639" name="key" index="38cxEo" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -1770,7 +1771,7 @@
                   <node concept="3clFbF" id="RIvadv2Ivk" role="3cqZAp">
                     <node concept="2OqwBi" id="RIvadv2IDr" role="3clFbG">
                       <node concept="37vLTw" id="RIvadv2Ivj" role="2Oq$k0">
-                        <ref role="3cqZAo" node="RIvadv2InN" resolve="it" />
+                        <ref role="3cqZAo" node="2FZhxW1aEap" resolve="it" />
                       </node>
                       <node concept="3TrEf2" id="2Fd5B1gxdCm" role="2OqNvi">
                         <ref role="3Tt5mk" to="i3ya:7eOyx9r3qFW" resolve="unit" />
@@ -1778,9 +1779,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="RIvadv2InN" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEap" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="RIvadv2InO" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEaq" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2161,7 +2162,7 @@
                               <ref role="2pIpSl" to="i3ya:7eOyx9r3qFW" resolve="unit" />
                               <node concept="36biLy" id="69ocqYc5szD" role="28nt2d">
                                 <node concept="37vLTw" id="69ocqYc5s$I" role="36biLW">
-                                  <ref role="3cqZAo" node="76ZhK6XVzgl" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1aEar" resolve="it" />
                                 </node>
                               </node>
                             </node>
@@ -2171,9 +2172,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="76ZhK6XVzgl" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEar" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="76ZhK6XVzgm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEas" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2802,7 +2803,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="4HbwYNVzatK" role="37wK5m">
                                       <node concept="37vLTw" id="4HbwYNVza4w" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="1r5D2UzTnnv" resolve="it" />
+                                        <ref role="3cqZAo" node="2bNJU1c5wwE" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="4HbwYNVzaW7" role="2OqNvi">
                                         <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -2813,9 +2814,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="1r5D2UzTnnv" role="1bW2Oz">
+                          <node concept="gl6BB" id="2bNJU1c5wwE" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="1r5D2UzTnnw" role="1tU5fm" />
+                            <node concept="2jxLKc" id="2bNJU1c5wwF" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -3802,7 +3803,7 @@
                   <node concept="3clFbF" id="7UgeC20_Fvo" role="3cqZAp">
                     <node concept="2OqwBi" id="7UgeC20_Fvp" role="3clFbG">
                       <node concept="37vLTw" id="7UgeC20_Fvq" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7UgeC20_Fvv" resolve="it" />
+                        <ref role="3cqZAo" node="2FZhxW1aEax" resolve="it" />
                       </node>
                       <node concept="1P9Npp" id="7UgeC20_Fvr" role="2OqNvi">
                         <node concept="2OqwBi" id="7UgeC20_Fvs" role="1P9ThW">
@@ -3815,9 +3816,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7UgeC20_Fvv" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEax" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7UgeC20_Fvw" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEay" role="1tU5fm" />
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               </node>
             </node>
@@ -5053,7 +5054,7 @@
                           </node>
                           <node concept="2OqwBi" id="ONy71DZREh" role="3uHU7B">
                             <node concept="37vLTw" id="2Ux6GHgYxsb" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2Ux6GHgYw2N" resolve="it" />
+                              <ref role="3cqZAo" node="79LXaAamK$0" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="ONy71DZSNf" role="2OqNvi">
                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -5062,9 +5063,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2Ux6GHgYw2N" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamK$0" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2Ux6GHgYw2O" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamK$1" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -5441,14 +5442,14 @@
                         <node concept="1rXfSq" id="3M4aPu_2GB9" role="3clFbG">
                           <ref role="37wK5l" node="3M4aPu_2pcA" resolve="isIntegerType" />
                           <node concept="37vLTw" id="3M4aPu_2GQ9" role="37wK5m">
-                            <ref role="3cqZAo" node="3M4aPu_2GnG" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwG" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3M4aPu_2GnG" role="1bW2Oz">
+                    <node concept="gl6BB" id="2bNJU1c5wwG" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3M4aPu_2GnH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2bNJU1c5wwH" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -6663,6 +6664,9 @@
                       <ref role="3cqZAo" node="3$KQaHcb8YT" resolve="exponent" />
                     </node>
                     <node concept="3EllGN" id="cJMP7syJm6" role="37vLTJ">
+                      <node concept="37vLTw" id="cJMP7syEl8" role="3ElQJh">
+                        <ref role="3cqZAo" node="3$KQaHcbl4m" resolve="result" />
+                      </node>
                       <node concept="2ShNRf" id="4Jy96U_ZR7$" role="3ElVtu">
                         <node concept="1pGfFk" id="4Jy96U_ZW7D" role="2ShVmc">
                           <property role="373rjd" value="true" />
@@ -6682,9 +6686,6 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="37vLTw" id="cJMP7syEl8" role="3ElQJh">
-                        <ref role="3cqZAo" node="3$KQaHcbl4m" resolve="result" />
-                      </node>
                     </node>
                   </node>
                 </node>
@@ -7490,6 +7491,14 @@
                 </node>
               </node>
               <node concept="2OqwBi" id="5dSoB2LTeVE" role="3clFbw">
+                <node concept="3EllGN" id="5rl0a66_s71" role="2Oq$k0">
+                  <node concept="37vLTw" id="5rl0a66_xYg" role="3ElVtu">
+                    <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
+                  </node>
+                  <node concept="37vLTw" id="5rl0a66_$a8" role="3ElQJh">
+                    <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
+                  </node>
+                </node>
                 <node concept="liA8E" id="5dSoB2LTf7s" role="2OqNvi">
                   <ref role="37wK5l" to="xfg9:5dSoB2LRAhY" resolve="equals" />
                   <node concept="2OqwBi" id="5dSoB2LTffZ" role="37wK5m">
@@ -7504,40 +7513,32 @@
                     </node>
                   </node>
                 </node>
-                <node concept="3EllGN" id="5rl0a66_s71" role="2Oq$k0">
-                  <node concept="37vLTw" id="5rl0a66_xYg" role="3ElVtu">
-                    <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
-                  </node>
-                  <node concept="37vLTw" id="5rl0a66_$a8" role="3ElQJh">
-                    <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
-                  </node>
-                </node>
               </node>
               <node concept="9aQIb" id="5rl0a66_s74" role="9aQIa">
                 <node concept="3clFbS" id="5rl0a66_s75" role="9aQI4">
                   <node concept="3clFbF" id="5rl0a66_s76" role="3cqZAp">
                     <node concept="37vLTI" id="5dSoB2LTg85" role="3clFbG">
                       <node concept="3EllGN" id="5dSoB2LTg87" role="37vLTJ">
-                        <node concept="37vLTw" id="5dSoB2LTg89" role="3ElQJh">
-                          <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
-                        </node>
                         <node concept="37vLTw" id="5dSoB2LTg88" role="3ElVtu">
                           <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
                         </node>
+                        <node concept="37vLTw" id="5dSoB2LTg89" role="3ElQJh">
+                          <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
+                        </node>
                       </node>
                       <node concept="2OqwBi" id="5dSoB2LTgST" role="37vLTx">
-                        <node concept="liA8E" id="5dSoB2LThc1" role="2OqNvi">
-                          <ref role="37wK5l" to="xfg9:5dSoB2LNdUE" resolve="add" />
-                          <node concept="37vLTw" id="5dSoB2LThiu" role="37wK5m">
-                            <ref role="3cqZAo" node="5rl0a66_s0a" resolve="exponent" />
-                          </node>
-                        </node>
                         <node concept="3EllGN" id="5dSoB2LTgLF" role="2Oq$k0">
+                          <node concept="37vLTw" id="5dSoB2LTgPR" role="3ElVtu">
+                            <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
+                          </node>
                           <node concept="37vLTw" id="5dSoB2LTgbL" role="3ElQJh">
                             <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
                           </node>
-                          <node concept="37vLTw" id="5dSoB2LTgPR" role="3ElVtu">
-                            <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
+                        </node>
+                        <node concept="liA8E" id="5dSoB2LThc1" role="2OqNvi">
+                          <ref role="37wK5l" to="xfg9:5dSoB2LNdUE" resolve="add" />
+                          <node concept="37vLTw" id="5dSoB2LThiu" role="37wK5m">
+                            <ref role="3cqZAo" node="5rl0a66_s0a" resolve="exponent" />
                           </node>
                         </node>
                       </node>
@@ -7547,6 +7548,16 @@
               </node>
             </node>
           </node>
+          <node concept="2OqwBi" id="5rl0a66_s7e" role="3clFbw">
+            <node concept="37vLTw" id="5rl0a66_tVr" role="2Oq$k0">
+              <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
+            </node>
+            <node concept="2Nt0df" id="5rl0a66_s7g" role="2OqNvi">
+              <node concept="37vLTw" id="5rl0a66_xYv" role="38cxEo">
+                <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
+              </node>
+            </node>
+          </node>
           <node concept="3eNFk2" id="5rl0a66_s7i" role="3eNLev">
             <node concept="3clFbS" id="5rl0a66_s7j" role="3eOfB_">
               <node concept="3clFbF" id="5rl0a66_s7k" role="3cqZAp">
@@ -7574,16 +7585,6 @@
               </node>
             </node>
           </node>
-          <node concept="2OqwBi" id="5rl0a66_s7e" role="3clFbw">
-            <node concept="37vLTw" id="5rl0a66_tVr" role="2Oq$k0">
-              <ref role="3cqZAo" node="5rl0a66_rO4" resolve="mapping" />
-            </node>
-            <node concept="2Nt0df" id="5rl0a66_s7g" role="2OqNvi">
-              <node concept="37vLTw" id="5rl0a66_xYv" role="38cxEo">
-                <ref role="3cqZAo" node="5rl0a66_rX9" resolve="key" />
-              </node>
-            </node>
-          </node>
         </node>
         <node concept="3cpWs6" id="5rl0a66_s7x" role="3cqZAp">
           <node concept="37vLTw" id="5rl0a66_F6a" role="3cqZAk">
@@ -8372,12 +8373,12 @@
                       </node>
                     </node>
                     <node concept="3EllGN" id="26hWC1HwWIU" role="37vLTJ">
-                      <node concept="2GrUjf" id="4Jy96U_VWer" role="3ElVtu">
-                        <ref role="2Gs0qQ" node="15ThpXbB$8L" resolve="key" />
-                      </node>
                       <node concept="37vLTw" id="15ThpXbB_aM" role="3ElQJh">
                         <ref role="3cqZAo" node="sYoQOgUORo" resolve="leftNonMatched" />
                       </node>
+                      <node concept="2GrUjf" id="4Jy96U_VWer" role="3ElVtu">
+                        <ref role="2Gs0qQ" node="15ThpXbB$8L" resolve="key" />
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -8598,12 +8599,12 @@
                             </node>
                           </node>
                           <node concept="3EllGN" id="2RfL3oOtVcf" role="37vLTJ">
-                            <node concept="37vLTw" id="2RfL3oOtUXu" role="3ElQJh">
-                              <ref role="3cqZAo" node="sYoQOgURZr" resolve="rightNonMatched" />
-                            </node>
                             <node concept="2GrUjf" id="2RfL3oOtVfJ" role="3ElVtu">
                               <ref role="2Gs0qQ" node="4jkbLB5XZzF" resolve="key" />
                             </node>
+                            <node concept="37vLTw" id="2RfL3oOtUXu" role="3ElQJh">
+                              <ref role="3cqZAo" node="sYoQOgURZr" resolve="rightNonMatched" />
+                            </node>
                           </node>
                         </node>
                       </node>
@@ -8645,12 +8646,12 @@
                             </node>
                           </node>
                           <node concept="3EllGN" id="2RfL3oOu2YA" role="37vLTJ">
-                            <node concept="37vLTw" id="2RfL3oOu2JV" role="3ElQJh">
-                              <ref role="3cqZAo" node="sYoQOgUORo" resolve="leftNonMatched" />
-                            </node>
                             <node concept="2GrUjf" id="2RfL3oOu30V" role="3ElVtu">
                               <ref role="2Gs0qQ" node="4jkbLB5XZzF" resolve="key" />
                             </node>
+                            <node concept="37vLTw" id="2RfL3oOu2JV" role="3ElQJh">
+                              <ref role="3cqZAo" node="sYoQOgUORo" resolve="leftNonMatched" />
+                            </node>
                           </node>
                         </node>
                       </node>
@@ -8667,16 +8668,6 @@
                 </node>
               </node>
               <node concept="1Wc70l" id="26hWC1HxeKG" role="3clFbw">
-                <node concept="2OqwBi" id="sYoQOgV5Yb" role="3uHU7B">
-                  <node concept="37vLTw" id="26hWC1Hxe7I" role="2Oq$k0">
-                    <ref role="3cqZAo" node="sYoQOgUORo" resolve="leftNonMatched" />
-                  </node>
-                  <node concept="2Nt0df" id="sYoQOgV7kz" role="2OqNvi">
-                    <node concept="2GrUjf" id="sYoQOgV7mU" role="38cxEo">
-                      <ref role="2Gs0qQ" node="4jkbLB5XZzF" resolve="key" />
-                    </node>
-                  </node>
-                </node>
                 <node concept="2OqwBi" id="26hWC1HxfJD" role="3uHU7w">
                   <node concept="37vLTw" id="26hWC1HxfaP" role="2Oq$k0">
                     <ref role="3cqZAo" node="sYoQOgURZr" resolve="rightNonMatched" />
@@ -8687,6 +8678,16 @@
                     </node>
                   </node>
                 </node>
+                <node concept="2OqwBi" id="sYoQOgV5Yb" role="3uHU7B">
+                  <node concept="37vLTw" id="26hWC1Hxe7I" role="2Oq$k0">
+                    <ref role="3cqZAo" node="sYoQOgUORo" resolve="leftNonMatched" />
+                  </node>
+                  <node concept="2Nt0df" id="sYoQOgV7kz" role="2OqNvi">
+                    <node concept="2GrUjf" id="sYoQOgV7mU" role="38cxEo">
+                      <ref role="2Gs0qQ" node="4jkbLB5XZzF" resolve="key" />
+                    </node>
+                  </node>
+                </node>
               </node>
             </node>
           </node>
@@ -8724,7 +8725,7 @@
                       <node concept="3clFbF" id="5sKgdctSk0y" role="3cqZAp">
                         <node concept="2OqwBi" id="5sKgdctSkC7" role="3clFbG">
                           <node concept="37vLTw" id="5sKgdctSk0x" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5sKgdctSgiV" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwI" resolve="it" />
                           </node>
                           <node concept="liA8E" id="6O1cltdHCOP" role="2OqNvi">
                             <ref role="37wK5l" node="6O1cltdz00K" resolve="getKey" />
@@ -8732,9 +8733,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5sKgdctSgiV" role="1bW2Oz">
+                    <node concept="gl6BB" id="2bNJU1c5wwI" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5sKgdctSgiW" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2bNJU1c5wwJ" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -8755,7 +8756,7 @@
                       <node concept="3clFbF" id="5sKgdctSZp4" role="3cqZAp">
                         <node concept="2OqwBi" id="5sKgdctT0oL" role="3clFbG">
                           <node concept="37vLTw" id="5sKgdctSZp3" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5sKgdctSVqP" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwK" resolve="it" />
                           </node>
                           <node concept="liA8E" id="6O1cltdHKLw" role="2OqNvi">
                             <ref role="37wK5l" node="6O1cltdz00K" resolve="getKey" />
@@ -8763,9 +8764,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5sKgdctSVqP" role="1bW2Oz">
+                    <node concept="gl6BB" id="2bNJU1c5wwK" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5sKgdctSVqQ" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2bNJU1c5wwL" role="1tU5fm" />
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                   </node>
                 </node>
@@ -8867,7 +8868,7 @@
                       <node concept="2OqwBi" id="3htFKtcjhWD" role="37vLTx">
                         <node concept="2OqwBi" id="3htFKtcjhqW" role="2Oq$k0">
                           <node concept="37vLTw" id="3htFKtcjh8W" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3htFKtciTSF" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwM" resolve="it" />
                           </node>
                           <node concept="3AV6Ez" id="3htFKtcjhEi" role="2OqNvi" />
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@@ -8878,7 +8879,7 @@
                       <node concept="3EllGN" id="3htFKtcjeJQ" role="37vLTJ">
                         <node concept="2OqwBi" id="3htFKtcjffF" role="3ElVtu">
                           <node concept="37vLTw" id="3htFKtcjeYq" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3htFKtciTSF" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwM" resolve="it" />
                           </node>
                           <node concept="3AY5_j" id="3htFKtcjfp7" role="2OqNvi" />
                         </node>
@@ -8889,9 +8890,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3htFKtciTSF" role="1bW2Oz">
+                <node concept="gl6BB" id="2bNJU1c5wwM" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3htFKtciTSG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2bNJU1c5wwN" role="1tU5fm" />
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@@ -8989,7 +8990,7 @@
                       <node concept="2OqwBi" id="3_6XMtDwUCl" role="33vP2m">
                         <node concept="2OqwBi" id="3_6XMtDwUCm" role="2Oq$k0">
                           <node concept="37vLTw" id="3_6XMtDwUCn" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6q$NxWeXtSa" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwO" resolve="it" />
                           </node>
                           <node concept="3AY5_j" id="3_6XMtDwUCo" role="2OqNvi" />
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@@ -9062,7 +9063,7 @@
                       <node concept="2OqwBi" id="6q$NxWeXxCB" role="37vLTx">
                         <node concept="2OqwBi" id="6q$NxWeXwHl" role="2Oq$k0">
                           <node concept="37vLTw" id="6q$NxWeXwbz" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6q$NxWeXtSa" resolve="it" />
+                            <ref role="3cqZAo" node="2bNJU1c5wwO" resolve="it" />
                           </node>
                           <node concept="3AV6Ez" id="6q$NxWeXx6R" role="2OqNvi" />
                         </node>
@@ -9090,9 +9091,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6q$NxWeXtSa" role="1bW2Oz">
+                <node concept="gl6BB" id="2bNJU1c5wwO" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6q$NxWeXtSb" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2bNJU1c5wwP" role="1tU5fm" />
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               </node>
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@@ -10458,7 +10459,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="6rBnJAoiEb8" role="1m5AlR">
                                         <node concept="37vLTw" id="6rBnJAoiEb9" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6rBnJAoiEbs" resolve="it" />
+                                          <ref role="3cqZAo" node="2bNJU1c5wwS" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="6rBnJAoiEba" role="2OqNvi">
                                           <ref role="3Tt5mk" to="i3ya:7eOyx9r3qFW" resolve="unit" />
@@ -10471,7 +10472,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="6rBnJAoiEbc" role="3uHU7B">
                                     <node concept="37vLTw" id="6rBnJAoiEbd" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="6rBnJAoiEbf" resolve="siUnit" />
+                                      <ref role="3cqZAo" node="2bNJU1c5wwQ" resolve="siUnit" />
                                     </node>
                                     <node concept="3TrEf2" id="6rBnJAoiEbe" role="2OqNvi">
                                       <ref role="3Tt5mk" to="i3ya:1KUmgSFpwWq" resolve="quantity" />
@@ -10480,9 +10481,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6rBnJAoiEbf" role="1bW2Oz">
+                            <node concept="gl6BB" id="2bNJU1c5wwQ" role="1bW2Oz">
                               <property role="TrG5h" value="siUnit" />
-                              <node concept="2jxLKc" id="6rBnJAoiEbg" role="1tU5fm" />
+                              <node concept="2jxLKc" id="2bNJU1c5wwR" role="1tU5fm" />
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                           </node>
                         </node>
@@ -10498,7 +10499,7 @@
                           </node>
                           <node concept="2OqwBi" id="6rBnJAoiEbm" role="37vLTJ">
                             <node concept="37vLTw" id="6rBnJAoiEbn" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6rBnJAoiEbs" resolve="it" />
+                              <ref role="3cqZAo" node="2bNJU1c5wwS" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="6rBnJAoiEbo" role="2OqNvi">
                               <ref role="3Tt5mk" to="i3ya:7eOyx9r3qFW" resolve="unit" />
@@ -10515,9 +10516,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="6rBnJAoiEbs" role="1bW2Oz">
+                <node concept="gl6BB" id="2bNJU1c5wwS" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6rBnJAoiEbt" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2bNJU1c5wwT" role="1tU5fm" />
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@@ -10769,9 +10770,6 @@
                     <ref role="cht4Q" to="i3ya:7eOyx9r3kR5" resolve="UnitReference" />
                   </node>
                   <node concept="2OqwBi" id="1bJsYf5dRhO" role="1m5AlR">
-                    <node concept="2qgKlT" id="6q45UTyyij0" role="2OqNvi">
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                     <node concept="2YIFZM" id="1bJsYf5dGTt" role="2Oq$k0">
                       <ref role="37wK5l" node="5pSqQr$AdB$" resolve="getSpecification" />
                       <ref role="1Pybhc" node="4jkbLB5RJZL" resolve="UnitConversionUtil" />
@@ -10779,6 +10777,9 @@
                         <ref role="3cqZAo" node="5X7HQPSJuZi" resolve="sourceType" />
                       </node>
                     </node>
+                    <node concept="2qgKlT" id="6q45UTyyij0" role="2OqNvi">
+                      <ref role="37wK5l" node="6q45UTytEvW" resolve="getExpression" />
+                    </node>
                   </node>
                 </node>
               </node>
@@ -11371,7 +11372,7 @@
                             <node concept="10Nm6u" id="3wrpJuqIyvo" role="3uHU7w" />
                             <node concept="2OqwBi" id="3wrpJuqIxOd" role="3uHU7B">
                               <node concept="37vLTw" id="3wrpJuqIxFy" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3wrpJuqItKJ" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1aEaJ" resolve="it" />
                               </node>
                               <node concept="I4A8Y" id="3wrpJuqIy20" role="2OqNvi" />
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@@ -11383,7 +11384,7 @@
                             <node concept="2OqwBi" id="3wrpJuqI$lv" role="3uHU7B">
                               <node concept="2OqwBi" id="3wrpJuqIufH" role="2Oq$k0">
                                 <node concept="37vLTw" id="3wrpJuqItWf" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3wrpJuqItKJ" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1aEaJ" resolve="it" />
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                                 <node concept="2qgKlT" id="3wrpJuqIuJK" role="2OqNvi">
                                   <ref role="37wK5l" node="1wGuEUvYk55" resolve="getConversionRule" />
@@ -11397,9 +11398,9 @@
                         </node>
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-                    <node concept="Rh6nW" id="3wrpJuqItKJ" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEaJ" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3wrpJuqItKK" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEaK" role="1tU5fm" />
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@@ -11423,7 +11424,7 @@
                           <node concept="2OqwBi" id="3wrpJuqIR_E" role="3clFbG">
                             <node concept="2OqwBi" id="3wrpJuqIQ29" role="2Oq$k0">
                               <node concept="37vLTw" id="3wrpJuqIPzl" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3wrpJuqIPiw" resolve="a" />
+                                <ref role="3cqZAo" node="2FZhxW1aEaL" resolve="a" />
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                               <node concept="2qgKlT" id="3wrpJuqIR2J" role="2OqNvi">
                                 <ref role="37wK5l" node="1wGuEUvYk55" resolve="getConversionRule" />
@@ -11435,13 +11436,13 @@
                           </node>
                         </node>
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-                      <node concept="Rh6nW" id="3wrpJuqIPiw" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1aEaL" role="1bW2Oz">
                         <property role="TrG5h" value="a" />
-                        <node concept="2jxLKc" id="3wrpJuqIPix" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1aEaM" role="1tU5fm" />
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-                      <node concept="Rh6nW" id="3wrpJuqIPiy" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1aEaN" role="1bW2Oz">
                         <property role="TrG5h" value="b" />
-                        <node concept="2jxLKc" id="3wrpJuqIPiz" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1aEaO" role="1tU5fm" />
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                     </node>
                     <node concept="1nlBCl" id="3wrpJuqIPi$" role="2Dq5b$">
@@ -11471,16 +11472,16 @@
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                             <node concept="2OqwBi" id="3wrpJuqxTtt" role="3uHU7B">
                               <node concept="37vLTw" id="3wrpJuqxTe2" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3wrpJuqxT74" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1aEaP" resolve="it" />
                               </node>
                               <node concept="I4A8Y" id="3wrpJuqxTUP" role="2OqNvi" />
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3wrpJuqxT74" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1aEaP" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3wrpJuqxT75" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1aEaQ" role="1tU5fm" />
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                     </node>
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@@ -11748,7 +11749,7 @@
                   <node concept="3clFbF" id="73cP8DpvTxk" role="3cqZAp">
                     <node concept="2OqwBi" id="73cP8DpvTxl" role="3clFbG">
                       <node concept="37vLTw" id="73cP8DpvTxm" role="2Oq$k0">
-                        <ref role="3cqZAo" node="73cP8DpvTxo" resolve="it" />
+                        <ref role="3cqZAo" node="2FZhxW1aEaR" resolve="it" />
                       </node>
                       <node concept="3TrEf2" id="73cP8DpvTxn" role="2OqNvi">
                         <ref role="3Tt5mk" to="i3ya:7athFveyRoc" resolve="quantity" />
@@ -11756,9 +11757,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="73cP8DpvTxo" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEaR" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="73cP8DpvTxp" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEaS" role="1tU5fm" />
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               </node>
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@@ -16893,7 +16894,7 @@
                       </node>
                       <node concept="2OqwBi" id="tQsiKfehvF" role="3uHU7B">
                         <node concept="37vLTw" id="tQsiKfehbZ" role="2Oq$k0">
-                          <ref role="3cqZAo" node="tQsiKfegnl" resolve="it" />
+                          <ref role="3cqZAo" node="79LXaAamK$6" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="tQsiKfeiD_" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -16902,9 +16903,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="tQsiKfegnl" role="1bW2Oz">
+                <node concept="gl6BB" id="79LXaAamK$6" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="tQsiKfegnm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="79LXaAamK$7" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -16966,7 +16967,7 @@
                       </node>
                       <node concept="2OqwBi" id="tQsiKfeyeM" role="3uHU7B">
                         <node concept="37vLTw" id="tQsiKfexMw" role="2Oq$k0">
-                          <ref role="3cqZAo" node="tQsiKfewZT" resolve="it" />
+                          <ref role="3cqZAo" node="79LXaAamK$8" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="tQsiKfezFM" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -16975,9 +16976,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="tQsiKfewZT" role="1bW2Oz">
+                <node concept="gl6BB" id="79LXaAamK$8" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="tQsiKfewZU" role="1tU5fm" />
+                  <node concept="2jxLKc" id="79LXaAamK$9" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -17089,7 +17090,7 @@
                       </node>
                       <node concept="2OqwBi" id="54sIvFygomy" role="3uHU7B">
                         <node concept="37vLTw" id="54sIvFygomz" role="2Oq$k0">
-                          <ref role="3cqZAo" node="54sIvFygom_" resolve="it" />
+                          <ref role="3cqZAo" node="79LXaAamK$a" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="54sIvFygom$" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -17098,9 +17099,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="54sIvFygom_" role="1bW2Oz">
+                <node concept="gl6BB" id="79LXaAamK$a" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="54sIvFygomA" role="1tU5fm" />
+                  <node concept="2jxLKc" id="79LXaAamK$b" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -17139,7 +17140,7 @@
                       </node>
                       <node concept="2OqwBi" id="3aO3kN33_Lx" role="3uHU7B">
                         <node concept="37vLTw" id="3aO3kN33_Ly" role="2Oq$k0">
-                          <ref role="3cqZAo" node="3aO3kN33_L$" resolve="it" />
+                          <ref role="3cqZAo" node="79LXaAamK$c" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="3aO3kN33_Lz" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -17148,9 +17149,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3aO3kN33_L$" role="1bW2Oz">
+                <node concept="gl6BB" id="79LXaAamK$c" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3aO3kN33_L_" role="1tU5fm" />
+                  <node concept="2jxLKc" id="79LXaAamK$d" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -17409,7 +17410,7 @@
             <node concept="2ShNRf" id="2hjX6q5dNeG" role="33vP2m">
               <node concept="2Jqq0_" id="2hjX6q5dNeH" role="2ShVmc">
                 <node concept="3Tqbb2" id="2hjX6q5dNeI" role="HW$YZ">
-                  <ref role="ehGHo" to="i3ya:7eOyx9r3jsZ" resolve="Unit" />
+                  <ref role="ehGHo" to="i3ya:7eOyx9r3k3e" resolve="IUnit" />
                 </node>
               </node>
             </node>
@@ -17524,7 +17525,7 @@
                       </node>
                       <node concept="2OqwBi" id="3xM68GM_oRa" role="3uHU7B">
                         <node concept="37vLTw" id="3xM68GM_oRb" role="2Oq$k0">
-                          <ref role="3cqZAo" node="3xM68GM_oRd" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1aEaT" resolve="it" />
                         </node>
                         <node concept="3TrcHB" id="3xM68GM_oRc" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -17533,9 +17534,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3xM68GM_oRd" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEaT" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3xM68GM_oRe" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEaU" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -18571,7 +18572,7 @@
                               <ref role="2pIpSl" to="i3ya:7athFveyRoc" resolve="quantity" />
                               <node concept="36biLy" id="3MkNnsWZpqC" role="28nt2d">
                                 <node concept="37vLTw" id="3MkNnsWZpst" role="36biLW">
-                                  <ref role="3cqZAo" node="3MkNnsWZ9Oy" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1aEaV" resolve="it" />
                                 </node>
                               </node>
                             </node>
@@ -18581,9 +18582,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3MkNnsWZ9Oy" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEaV" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3MkNnsWZ9Oz" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEaW" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -18934,7 +18935,7 @@
                       <node concept="2OqwBi" id="38e9cZkc7x_" role="3clFbG">
                         <node concept="2OqwBi" id="38e9cZkc5j2" role="2Oq$k0">
                           <node concept="37vLTw" id="38e9cZkc4aY" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6RONOaU4vFq" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamK$e" resolve="it" />
                           </node>
                           <node concept="3AY5_j" id="38e9cZkc6hj" role="2OqNvi" />
                         </node>
@@ -18947,9 +18948,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6RONOaU4vFq" role="1bW2Oz">
+                  <node concept="gl6BB" id="79LXaAamK$e" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6RONOaU4vFr" role="1tU5fm" />
+                    <node concept="2jxLKc" id="79LXaAamK$f" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -19037,7 +19038,7 @@
                               <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
                               <node concept="2OqwBi" id="3$mGz_zFpCF" role="37wK5m">
                                 <node concept="37vLTw" id="3$mGz_zFpCG" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3$mGz_zFpCI" resolve="it" />
+                                  <ref role="3cqZAo" node="79LXaAamK$g" resolve="it" />
                                 </node>
                                 <node concept="3AY5_j" id="3$mGz_zFpCH" role="2OqNvi" />
                               </node>
@@ -19045,9 +19046,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3$mGz_zFpCI" role="1bW2Oz">
+                      <node concept="gl6BB" id="79LXaAamK$g" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3$mGz_zFpCJ" role="1tU5fm" />
+                        <node concept="2jxLKc" id="79LXaAamK$h" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -19059,7 +19060,7 @@
                         <node concept="2OqwBi" id="3$mGz_zFwtn" role="3clFbG">
                           <node concept="2OqwBi" id="3$mGz_zFtQn" role="2Oq$k0">
                             <node concept="37vLTw" id="3$mGz_zFtaO" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3$mGz_zFs5d" resolve="a" />
+                              <ref role="3cqZAo" node="79LXaAamK$i" resolve="a" />
                             </node>
                             <node concept="3AY5_j" id="3$mGz_zFv3q" role="2OqNvi" />
                           </node>
@@ -19069,13 +19070,13 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3$mGz_zFs5d" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamK$i" role="1bW2Oz">
                       <property role="TrG5h" value="a" />
-                      <node concept="2jxLKc" id="3$mGz_zFs5e" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamK$j" role="1tU5fm" />
                     </node>
-                    <node concept="Rh6nW" id="3$mGz_zFs5f" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamK$k" role="1bW2Oz">
                       <property role="TrG5h" value="b" />
-                      <node concept="2jxLKc" id="3$mGz_zFs5g" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamK$l" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="3$mGz_zFs5h" role="2Dq5b$">
@@ -22786,13 +22787,13 @@
                           <ref role="37wK5l" to="wyt6:~String.replace(java.lang.CharSequence,java.lang.CharSequence)" resolve="replace" />
                           <node concept="2OqwBi" id="WySbq1MLQ$" role="37wK5m">
                             <node concept="37vLTw" id="WySbq1MKp8" role="2Oq$k0">
-                              <ref role="3cqZAo" node="WySbq1MC1K" resolve="it" />
+                              <ref role="3cqZAo" node="79LXaAamK$m" resolve="it" />
                             </node>
                             <node concept="3AY5_j" id="WySbq1MNn3" role="2OqNvi" />
                           </node>
                           <node concept="2OqwBi" id="WySbq1MRps" role="37wK5m">
                             <node concept="37vLTw" id="WySbq1MPZI" role="2Oq$k0">
-                              <ref role="3cqZAo" node="WySbq1MC1K" resolve="it" />
+                              <ref role="3cqZAo" node="79LXaAamK$m" resolve="it" />
                             </node>
                             <node concept="3AV6Ez" id="WySbq1MT57" role="2OqNvi" />
                           </node>
@@ -22804,9 +22805,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="WySbq1MC1K" role="1bW2Oz">
+                <node concept="gl6BB" id="79LXaAamK$m" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="WySbq1MC1L" role="1tU5fm" />
+                  <node concept="2jxLKc" id="79LXaAamK$n" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.constraints.mps
index 3799e3d06c..e3b7f80621 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.constraints.mps
@@ -92,7 +92,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -183,7 +183,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.editor.mps
index 6a04ee907c..6db4318022 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.editor.mps
@@ -55,7 +55,7 @@
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
       <concept id="1402906326895675325" name="jetbrains.mps.lang.editor.structure.CellActionMap_FunctionParm_selectedNode" flags="nn" index="0IXxy" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -92,7 +92,7 @@
       </concept>
       <concept id="1177327274449" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_pattern" flags="nn" index="ub8z3" />
       <concept id="1177327570013" name="jetbrains.mps.lang.editor.structure.QueryFunction_SubstituteMenu_Substitute" flags="in" index="ucgPf" />
-      <concept id="8478191136883534237" name="jetbrains.mps.lang.editor.structure.IExtensibleSubstituteMenuPart" flags="ng" index="upBLQ">
+      <concept id="8478191136883534237" name="jetbrains.mps.lang.editor.structure.IExtensibleSubstituteMenuPart" flags="ngI" index="upBLQ">
         <child id="8478191136883534238" name="features" index="upBLP" />
       </concept>
       <concept id="1177335944525" name="jetbrains.mps.lang.editor.structure.QueryFunction_SubstituteMenu_SubstituteString" flags="in" index="uGdhv" />
@@ -157,15 +157,15 @@
       <concept id="1186414860679" name="jetbrains.mps.lang.editor.structure.EditableStyleClassItem" flags="ln" index="VPxyj" />
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
       <concept id="1186414949600" name="jetbrains.mps.lang.editor.structure.AutoDeletableStyleClassItem" flags="ln" index="VPRnO" />
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
       <concept id="1630016958697286851" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_parameterObject" flags="ng" index="2ZBlsa" />
-      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ng" index="2ZBHr6">
+      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ngI" index="2ZBHr6">
         <child id="1630016958697057552" name="parameterType" index="2ZBHrp" />
       </concept>
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
@@ -220,7 +220,7 @@
         <property id="1225456424731" name="value" index="1iTho6" />
       </concept>
       <concept id="3622263992595020489" name="jetbrains.mps.lang.editor.structure.SubstituteMenuItem_DescriptionText_Operation" flags="ng" index="3j5asx" />
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
       <concept id="3622263992592371436" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_SubstituteMenu_WrappedItem" flags="ng" index="3jrdc4" />
@@ -228,7 +228,7 @@
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="2906093235281475560" name="jetbrains.mps.lang.editor.structure.SpellCheckStyle" flags="lg" index="1liFee" />
@@ -256,7 +256,7 @@
         <property id="1140114345053" name="allowEmptyText" index="1O74Pk" />
         <reference id="1140103550593" name="relationDeclaration" index="1NtTu8" />
       </concept>
-      <concept id="7991336459489871999" name="jetbrains.mps.lang.editor.structure.IOutputConceptSubstituteMenuPart" flags="ng" index="3EoQpk">
+      <concept id="7991336459489871999" name="jetbrains.mps.lang.editor.structure.IOutputConceptSubstituteMenuPart" flags="ngI" index="3EoQpk">
         <reference id="7991336459489872009" name="outputConcept" index="3EoQqy" />
       </concept>
       <concept id="1073389214265" name="jetbrains.mps.lang.editor.structure.EditorCellModel" flags="ng" index="3EYTF0">
@@ -273,12 +273,12 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
-      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ng" index="1FNN41">
+      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ngI" index="1FNN41">
         <child id="843003353410424960" name="outputConceptReference" index="1FNMel" />
       </concept>
       <concept id="843003353410421233" name="jetbrains.mps.lang.editor.structure.OptionalConceptReference" flags="ng" index="1FNNb$">
@@ -297,7 +297,7 @@
       </concept>
       <concept id="7985135009827365938" name="jetbrains.mps.lang.editor.structure.TransformationMenuPart_Placeholder" flags="ng" index="1IAO7e" />
       <concept id="5624877018226900666" name="jetbrains.mps.lang.editor.structure.TransformationMenu" flags="ng" index="3ICUPy" />
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="5624877018228264944" name="jetbrains.mps.lang.editor.structure.TransformationMenuContribution" flags="ng" index="3INDKC">
@@ -371,7 +371,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -422,7 +422,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -435,7 +435,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -475,7 +475,7 @@
         <child id="6856661361479798957" name="actions" index="130p63" />
         <child id="6856661361479732085" name="cell" index="130CDr" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G">
@@ -632,7 +632,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.intentions.mps
index 5c61306dad..4edadafd9d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.intentions.mps
@@ -81,7 +81,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -167,7 +167,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.plugin.mps
index 0f2f6d65c6..2cb7073049 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.plugin.mps
@@ -257,6 +257,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -382,7 +383,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -451,7 +451,7 @@
                           <ref role="37wK5l" to="rppw:5pSqQr$AdB$" resolve="getSpecification" />
                           <ref role="1Pybhc" to="rppw:4jkbLB5RJZL" resolve="UnitConversionUtil" />
                           <node concept="37vLTw" id="2rzAw9UY1SP" role="37wK5m">
-                            <ref role="3cqZAo" node="2rzAw9UY1T2" resolve="typeWithUnit" />
+                            <ref role="3cqZAo" node="2FZhxW1aEb5" resolve="typeWithUnit" />
                           </node>
                         </node>
                       </node>
@@ -486,15 +486,15 @@
                           <ref role="3cqZAo" node="2rzAw9UY1SR" resolve="unitSpecInMap" />
                         </node>
                         <node concept="37vLTw" id="2rzAw9UY1T1" role="37wK5m">
-                          <ref role="3cqZAo" node="2rzAw9UY1T2" resolve="typeWithUnit" />
+                          <ref role="3cqZAo" node="2FZhxW1aEb5" resolve="typeWithUnit" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2rzAw9UY1T2" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEb5" role="1bW2Oz">
                   <property role="TrG5h" value="typeWithUnit" />
-                  <node concept="2jxLKc" id="2rzAw9UY1T3" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEb6" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -629,7 +629,7 @@
                       <node concept="3clFbF" id="69hlyJ6g7p0" role="3cqZAp">
                         <node concept="2OqwBi" id="69hlyJ6g7p1" role="3clFbG">
                           <node concept="37vLTw" id="69hlyJ6g7p2" role="2Oq$k0">
-                            <ref role="3cqZAo" node="69hlyJ6g7p4" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1aEb7" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="69hlyJ6hZY8" role="2OqNvi">
                             <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -637,9 +637,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="69hlyJ6g7p4" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEb7" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="69hlyJ6g7p5" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEb8" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1247,7 +1247,7 @@
                       <node concept="3clFbF" id="4qv99IrBJ43" role="3cqZAp">
                         <node concept="2OqwBi" id="4qv99IrBJ44" role="3clFbG">
                           <node concept="37vLTw" id="4qv99IrBJ45" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4qv99IrBJ47" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1aEb9" resolve="it" />
                           </node>
                           <node concept="liA8E" id="4qv99IrBJ46" role="2OqNvi">
                             <ref role="37wK5l" node="26cjRACVSeU" resolve="getPriorityLevel" />
@@ -1255,9 +1255,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4qv99IrBJ47" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEb9" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4qv99IrBJ48" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEba" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="4qv99IrBJ49" role="2S7zOq">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.structure.mps
index db49490048..11a5e16936 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.structure.mps
@@ -71,7 +71,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.typesystem.mps
index d273b4893d..452694288b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/models/org.iets3.core.expr.typetags.physunits.typesystem.mps
@@ -2,7 +2,7 @@
 <model ref="r:d4f1532d-fc5c-419f-84ee-daef42867c8e(org.iets3.core.expr.typetags.physunits.typesystem)">
   <persistence version="9" />
   <languages>
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -41,9 +41,9 @@
     <import index="wyuk" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.components(MPS.Core/)" />
     <import index="u78q" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.typesystem.inference(MPS.Core/)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
+    <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" />
     <import index="s2qo" ref="r:ab4665d9-6baf-4005-b8e4-87240839fe18(org.iets3.core.expr.math.interpreter.plugin)" />
     <import index="1cgy" ref="b804a851-ecf0-4ad4-a0af-ae720b39191a/java:ch.obermuhlner.math.big(org.iets3.core.expr.math.interpreter/)" />
-    <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" />
   </imports>
   <registry>
     <language id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples">
@@ -276,6 +276,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -601,7 +602,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1240217271293" name="jetbrains.mps.baseLanguage.collections.structure.LinkedHashSetCreator" flags="nn" index="32HrFt" />
@@ -1088,13 +1088,13 @@
                     <property role="Xl_RC" value="the specifier's type is already covered" />
                   </node>
                   <node concept="37vLTw" id="1wGuEUwrs0w" role="1urrMF">
-                    <ref role="3cqZAo" node="1wGuEUwrqnn" resolve="it" />
+                    <ref role="3cqZAo" node="2FZhxW1aEbb" resolve="it" />
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="1wGuEUwrqnn" role="1bW2Oz">
+              <node concept="gl6BB" id="2FZhxW1aEbb" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="1wGuEUwrqno" role="1tU5fm" />
+                <node concept="2jxLKc" id="2FZhxW1aEbc" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -1283,7 +1283,7 @@
                                   <node concept="3y3z36" id="6FK1Pb8udWl" role="3uHU7B">
                                     <node concept="2OqwBi" id="6FK1Pb8udWm" role="3uHU7B">
                                       <node concept="37vLTw" id="6FK1Pb8udWn" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="6FK1Pb8uaUA" resolve="it" />
+                                        <ref role="3cqZAo" node="2FZhxW1aEbd" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="5Q6EZP5PnyX" role="2OqNvi">
                                         <ref role="3Tt5mk" to="i3ya:7i1yFLkslE5" resolve="exponent" />
@@ -1298,7 +1298,7 @@
                                     <node concept="2OqwBi" id="6FK1Pb8udWg" role="3uHU7B">
                                       <node concept="2OqwBi" id="6FK1Pb8udWh" role="2Oq$k0">
                                         <node concept="37vLTw" id="6FK1Pb8udWi" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6FK1Pb8uaUA" resolve="it" />
+                                          <ref role="3cqZAo" node="2FZhxW1aEbd" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="5Q6EZP5PlXD" role="2OqNvi">
                                           <ref role="3Tt5mk" to="i3ya:7i1yFLkslE5" resolve="exponent" />
@@ -1312,9 +1312,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6FK1Pb8uaUA" role="1bW2Oz">
+                            <node concept="gl6BB" id="2FZhxW1aEbd" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="6FK1Pb8uaUB" role="1tU5fm" />
+                              <node concept="2jxLKc" id="2FZhxW1aEbe" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -3153,15 +3153,15 @@
                         <node concept="3clFbF" id="77FPJvcTsNH" role="3cqZAp">
                           <node concept="2OqwBi" id="77FPJvcTv70" role="3clFbG">
                             <node concept="37vLTw" id="77FPJvcTsNG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="77FPJvcTsaj" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1aEbf" resolve="it" />
                             </node>
                             <node concept="1$rogu" id="77FPJvcTvAz" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="77FPJvcTsaj" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1aEbf" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="77FPJvcTsak" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1aEbg" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3637,7 +3637,7 @@
                             <node concept="10Nm6u" id="3wrpJuuu_VK" role="3uHU7w" />
                             <node concept="2OqwBi" id="3wrpJuuuwn_" role="3uHU7B">
                               <node concept="37vLTw" id="3wrpJuuuvaa" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3wrpJuurTe1" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1aEbh" resolve="it" />
                               </node>
                               <node concept="I4A8Y" id="3wrpJuuuxAj" role="2OqNvi" />
                             </node>
@@ -3646,7 +3646,7 @@
                             <node concept="2OqwBi" id="3wrpJuutP23" role="3fr31v">
                               <node concept="2OqwBi" id="3wrpJuutP24" role="2Oq$k0">
                                 <node concept="37vLTw" id="3wrpJuutP25" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3wrpJuurTe1" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1aEbh" resolve="it" />
                                 </node>
                                 <node concept="2Xjw5R" id="3wrpJuutP26" role="2OqNvi">
                                   <node concept="1xMEDy" id="3wrpJuutP27" role="1xVPHs">
@@ -3664,9 +3664,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3wrpJuurTe1" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEbh" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3wrpJuurTe2" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEbi" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -4838,12 +4838,12 @@
                       <ref role="ehGHo" to="i3ya:VmEWGR2Mzb" resolve="ConversionRule" />
                     </node>
                     <node concept="2OqwBi" id="14E_CIO1rx0" role="33vP2m">
-                      <node concept="2qgKlT" id="14E_CIO1rx2" role="2OqNvi">
-                        <ref role="37wK5l" to="rppw:1wGuEUvYk55" resolve="getConversionRule" />
-                      </node>
                       <node concept="37vLTw" id="14E_CIO1rx1" role="2Oq$k0">
                         <ref role="3cqZAo" node="124bbdDBCIf" resolve="finalConversionSpecifier" />
                       </node>
+                      <node concept="2qgKlT" id="14E_CIO1rx2" role="2OqNvi">
+                        <ref role="37wK5l" to="rppw:1wGuEUvYk55" resolve="getConversionRule" />
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -5653,7 +5653,7 @@
                       <node concept="3clFbF" id="77FPJvcIdAw" role="3cqZAp">
                         <node concept="2OqwBi" id="77FPJvcIdAx" role="3clFbG">
                           <node concept="37vLTw" id="77FPJvcIdAy" role="2Oq$k0">
-                            <ref role="3cqZAo" node="77FPJvcIdAU" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1aEbj" resolve="it" />
                           </node>
                           <node concept="1P9Npp" id="77FPJvcIdAz" role="2OqNvi">
                             <node concept="37vLTw" id="77FPJvcIdA$" role="1P9ThW">
@@ -5676,7 +5676,7 @@
                         <node concept="3clFbF" id="77FPJvcIdAN" role="3cqZAp">
                           <node concept="2OqwBi" id="77FPJvcIdAO" role="3clFbG">
                             <node concept="37vLTw" id="77FPJvcIdAP" role="2Oq$k0">
-                              <ref role="3cqZAo" node="77FPJvcIdAU" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1aEbj" resolve="it" />
                             </node>
                             <node concept="1P9Npp" id="77FPJvcIdAQ" role="2OqNvi">
                               <node concept="2OqwBi" id="77FPJvcIdAR" role="1P9ThW">
@@ -5692,9 +5692,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="77FPJvcIdAU" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEbj" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="77FPJvcIdAV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEbk" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -6876,7 +6876,7 @@
                                 <node concept="3clFbF" id="7zq8U7uEKMa" role="3cqZAp">
                                   <node concept="2OqwBi" id="7zq8U7uELdM" role="3clFbG">
                                     <node concept="37vLTw" id="7zq8U7uEKM9" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="7zq8U7uEK6b" resolve="it" />
+                                      <ref role="3cqZAo" node="79LXaAamK$o" resolve="it" />
                                     </node>
                                     <node concept="1mIQ4w" id="7zq8U7uEM1i" role="2OqNvi">
                                       <node concept="chp4Y" id="7zq8U7uEMCw" role="cj9EA">
@@ -6886,9 +6886,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="7zq8U7uEK6b" role="1bW2Oz">
+                              <node concept="gl6BB" id="79LXaAamK$o" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="7zq8U7uEK6c" role="1tU5fm" />
+                                <node concept="2jxLKc" id="79LXaAamK$p" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -6908,7 +6908,7 @@
                             <node concept="3clFbF" id="7zq8U7uw_aO" role="3cqZAp">
                               <node concept="2OqwBi" id="7zq8U7uA5m3" role="3clFbG">
                                 <node concept="37vLTw" id="7zq8U7uA4Bl" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="7zq8U7uwcZr" resolve="it" />
+                                  <ref role="3cqZAo" node="79LXaAamK$q" resolve="it" />
                                 </node>
                                 <node concept="1P9Npp" id="7zq8U7uA65k" role="2OqNvi">
                                   <node concept="1rXfSq" id="7zq8U7xL7pJ" role="1P9ThW">
@@ -6920,7 +6920,7 @@
                                       <node concept="2qgKlT" id="7zq8U7uxqQd" role="2OqNvi">
                                         <ref role="37wK5l" to="rppw:15KrVXSDEu7" resolve="mkPower" />
                                         <node concept="37vLTw" id="7zq8U7uxQEQ" role="37wK5m">
-                                          <ref role="3cqZAo" node="7zq8U7uwcZr" resolve="it" />
+                                          <ref role="3cqZAo" node="79LXaAamK$q" resolve="it" />
                                         </node>
                                         <node concept="2OqwBi" id="7zq8U7uIu2Q" role="37wK5m">
                                           <node concept="37vLTw" id="7zq8U7uItq6" role="2Oq$k0">
@@ -6937,9 +6937,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="7zq8U7uwcZr" role="1bW2Oz">
+                          <node concept="gl6BB" id="79LXaAamK$q" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="7zq8U7uwcZs" role="1tU5fm" />
+                            <node concept="2jxLKc" id="79LXaAamK$r" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -7095,7 +7095,7 @@
                             <node concept="2OqwBi" id="6Yx4TURH9tV" role="33vP2m">
                               <node concept="2OqwBi" id="6Yx4TURH9tW" role="2Oq$k0">
                                 <node concept="37vLTw" id="6Yx4TURH9tX" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="45a4DYZIBHN" resolve="it" />
+                                  <ref role="3cqZAo" node="79LXaAamK$s" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="6Yx4TURH9tY" role="2OqNvi">
                                   <ref role="37wK5l" to="rppw:1JynhuWs9Jp" resolve="getBase" />
@@ -7136,9 +7136,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="45a4DYZIBHN" role="1bW2Oz">
+                      <node concept="gl6BB" id="79LXaAamK$s" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="45a4DYZIBHO" role="1tU5fm" />
+                        <node concept="2jxLKc" id="79LXaAamK$t" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -8026,7 +8026,7 @@
                                   <node concept="2OqwBi" id="6Yx4TURHfCw" role="33vP2m">
                                     <node concept="2OqwBi" id="6Yx4TURHfCx" role="2Oq$k0">
                                       <node concept="37vLTw" id="6Yx4TURHfCy" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="45a4DYZHCDP" resolve="it" />
+                                        <ref role="3cqZAo" node="2FZhxW1aEbn" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="6Yx4TURHfCz" role="2OqNvi">
                                         <ref role="37wK5l" to="rppw:1JynhuWs9Jp" resolve="getBase" />
@@ -8067,9 +8067,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="45a4DYZHCDP" role="1bW2Oz">
+                            <node concept="gl6BB" id="2FZhxW1aEbn" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="45a4DYZHCDQ" role="1tU5fm" />
+                              <node concept="2jxLKc" id="2FZhxW1aEbo" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -8460,10 +8460,10 @@
                           <node concept="liA8E" id="2NJGAccyQl5" role="2OqNvi">
                             <ref role="37wK5l" to="33ny:~Comparator.compare(java.lang.Object,java.lang.Object)" resolve="compare" />
                             <node concept="37vLTw" id="2NJGAccyQl6" role="37wK5m">
-                              <ref role="3cqZAo" node="2NJGAccyQl8" resolve="a" />
+                              <ref role="3cqZAo" node="2FZhxW1aEbt" resolve="a" />
                             </node>
                             <node concept="37vLTw" id="2NJGAccyQl7" role="37wK5m">
-                              <ref role="3cqZAo" node="2NJGAccyQla" resolve="b" />
+                              <ref role="3cqZAo" node="2FZhxW1aEbv" resolve="b" />
                             </node>
                           </node>
                           <node concept="2OqwBi" id="HeBpG1Zds" role="2Oq$k0">
@@ -8478,13 +8478,13 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2NJGAccyQl8" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEbt" role="1bW2Oz">
                       <property role="TrG5h" value="a" />
-                      <node concept="2jxLKc" id="2NJGAccyQl9" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEbu" role="1tU5fm" />
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-                    <node concept="Rh6nW" id="2NJGAccyQla" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEbv" role="1bW2Oz">
                       <property role="TrG5h" value="b" />
-                      <node concept="2jxLKc" id="2NJGAccyQlb" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEbw" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="2NJGAccyQlc" role="2Dq5b$">
@@ -8521,14 +8521,14 @@
                         <node concept="1rXfSq" id="3wB0OGQ4yhj" role="3clFbG">
                           <ref role="37wK5l" node="3wB0OGPVsUA" resolve="getOriginalNode" />
                           <node concept="37vLTw" id="3wB0OGQ4yhk" role="37wK5m">
-                            <ref role="3cqZAo" node="3wB0OGQ4yhl" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1aEbx" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3wB0OGQ4yhl" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1aEbx" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3wB0OGQ4yhm" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1aEby" role="1tU5fm" />
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                   </node>
                 </node>
@@ -9803,7 +9803,7 @@
                                 <ref role="37wK5l" to="rppw:5nqK_jUbSe6" resolve="getManager" />
                                 <ref role="1Pybhc" to="rppw:6RONOaUjvHi" resolve="GlobalUnitPrefixManager" />
                                 <node concept="37vLTw" id="6qKRejV5HkW" role="37wK5m">
-                                  <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                 </node>
                               </node>
                               <node concept="liA8E" id="6qKRejUUMTl" role="2OqNvi">
@@ -9816,15 +9816,15 @@
                                   <node concept="3clFbF" id="6qKRejUUQpq" role="3cqZAp">
                                     <node concept="2OqwBi" id="6qKRejUUQYG" role="3clFbG">
                                       <node concept="37vLTw" id="6qKRejUUQpp" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="6qKRejUUQ6U" resolve="it" />
+                                        <ref role="3cqZAo" node="EsIH9l3XNW" resolve="it" />
                                       </node>
                                       <node concept="3AY5_j" id="6qKRejUURyh" role="2OqNvi" />
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="6qKRejUUQ6U" role="1bW2Oz">
+                                <node concept="gl6BB" id="EsIH9l3XNW" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="6qKRejUUQ6V" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="EsIH9l3XNX" role="1tU5fm" />
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                               </node>
                             </node>
@@ -9860,7 +9860,7 @@
                                           <ref role="2pIpSl" to="i3ya:7eOyx9r3qFW" resolve="unit" />
                                           <node concept="36biLy" id="6qKRejUYnq4" role="28nt2d">
                                             <node concept="37vLTw" id="6qKRejV4Cxt" role="36biLW">
-                                              <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                              <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                             </node>
                                           </node>
                                         </node>
@@ -9868,7 +9868,7 @@
                                           <ref role="2pJxcJ" to="i3ya:7Bmg9OopAyq" resolve="prefix" />
                                           <node concept="WxPPo" id="6qKRejUYnq7" role="28ntcv">
                                             <node concept="37vLTw" id="6qKRejUYnq8" role="WxPPp">
-                                              <ref role="3cqZAo" node="6qKRejUYnqi" resolve="prefix" />
+                                              <ref role="3cqZAo" node="EsIH9l3XNY" resolve="prefix" />
                                             </node>
                                           </node>
                                         </node>
@@ -9876,9 +9876,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="6qKRejUYnqi" role="1bW2Oz">
+                                <node concept="gl6BB" id="EsIH9l3XNY" role="1bW2Oz">
                                   <property role="TrG5h" value="prefix" />
-                                  <node concept="2jxLKc" id="6qKRejUYnqj" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="EsIH9l3XNZ" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -9896,7 +9896,7 @@
                                 <ref role="1YBMHb" node="7Bmg9Oo9mUn" resolve="unit" />
                               </node>
                               <node concept="37vLTw" id="70JbBCf868n" role="3uHU7B">
-                                <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                               </node>
                             </node>
                             <node concept="1eOMI4" id="6qKRejUUII$" role="3uHU7w">
@@ -9904,7 +9904,7 @@
                                 <node concept="17R0WA" id="70JbBCeOWgK" role="3uHU7B">
                                   <node concept="2OqwBi" id="70JbBCeOUM9" role="3uHU7B">
                                     <node concept="37vLTw" id="70JbBCeOU_L" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                      <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                     </node>
                                     <node concept="2qgKlT" id="70JbBCeOV14" role="2OqNvi">
                                       <ref role="37wK5l" to="hwgx:4yaQL1YaUNL" resolve="getQualifiedName" />
@@ -9923,7 +9923,7 @@
                                   <node concept="1Wc70l" id="3V2fk_bJjTP" role="1eOMHV">
                                     <node concept="2OqwBi" id="3V2fk_bJlr5" role="3uHU7B">
                                       <node concept="37vLTw" id="3V2fk_bJksn" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                        <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="3V2fk_bJmuY" role="2OqNvi">
                                         <ref role="37wK5l" to="rppw:2hbaSyAVW8s" resolve="hasScaling" />
@@ -9948,7 +9948,7 @@
                                                 </node>
                                                 <node concept="2OqwBi" id="6qKRejUYe2x" role="3uHU7B">
                                                   <node concept="37vLTw" id="6qKRejUYbUO" role="2Oq$k0">
-                                                    <ref role="3cqZAo" node="6qKRejUV70J" resolve="reference" />
+                                                    <ref role="3cqZAo" node="EsIH9l3XO0" resolve="reference" />
                                                   </node>
                                                   <node concept="3TrcHB" id="6qKRejUYeF$" role="2OqNvi">
                                                     <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -9957,9 +9957,9 @@
                                               </node>
                                             </node>
                                           </node>
-                                          <node concept="Rh6nW" id="6qKRejUV70J" role="1bW2Oz">
+                                          <node concept="gl6BB" id="EsIH9l3XO0" role="1bW2Oz">
                                             <property role="TrG5h" value="reference" />
-                                            <node concept="2jxLKc" id="6qKRejUV70K" role="1tU5fm" />
+                                            <node concept="2jxLKc" id="EsIH9l3XO1" role="1tU5fm" />
                                           </node>
                                         </node>
                                       </node>
@@ -9980,7 +9980,7 @@
                         </node>
                         <node concept="2OqwBi" id="70JbBCeOR6S" role="3uHU7B">
                           <node concept="37vLTw" id="70JbBCeOQBd" role="2Oq$k0">
-                            <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                            <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                           </node>
                           <node concept="2Rxl7S" id="70JbBCeORRT" role="2OqNvi" />
                         </node>
@@ -9994,7 +9994,7 @@
                                   <ref role="1YBMHb" node="7Bmg9Oo9mUn" resolve="unit" />
                                 </node>
                                 <node concept="37vLTw" id="4iGVAJE7atb" role="3uHU7B">
-                                  <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                  <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                 </node>
                               </node>
                               <node concept="1eOMI4" id="4iGVAJE7atc" role="3uHU7w">
@@ -10002,7 +10002,7 @@
                                   <node concept="17R0WA" id="4iGVAJE7ate" role="3uHU7B">
                                     <node concept="2OqwBi" id="4iGVAJE7atf" role="3uHU7B">
                                       <node concept="37vLTw" id="4iGVAJE7atg" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                        <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                       </node>
                                       <node concept="3TrcHB" id="4iGVAJE7ath" role="2OqNvi">
                                         <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -10021,7 +10021,7 @@
                                     <node concept="1Wc70l" id="4iGVAJE7hfi" role="1eOMHV">
                                       <node concept="2OqwBi" id="4iGVAJE7fug" role="3uHU7B">
                                         <node concept="37vLTw" id="4iGVAJE7eHV" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="EsE2hyhpwH" resolve="it" />
+                                          <ref role="3cqZAo" node="EsIH9l3XO4" resolve="it" />
                                         </node>
                                         <node concept="2qgKlT" id="4iGVAJE7gu$" role="2OqNvi">
                                           <ref role="37wK5l" to="rppw:2hbaSyAVW8s" resolve="hasScaling" />
@@ -10046,7 +10046,7 @@
                                                   </node>
                                                   <node concept="2OqwBi" id="4iGVAJE7atv" role="3uHU7B">
                                                     <node concept="37vLTw" id="4iGVAJE7atw" role="2Oq$k0">
-                                                      <ref role="3cqZAo" node="4iGVAJE7aty" resolve="reference" />
+                                                      <ref role="3cqZAo" node="EsIH9l3XO2" resolve="reference" />
                                                     </node>
                                                     <node concept="3TrcHB" id="4iGVAJE7atx" role="2OqNvi">
                                                       <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -10055,9 +10055,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="4iGVAJE7aty" role="1bW2Oz">
+                                            <node concept="gl6BB" id="EsIH9l3XO2" role="1bW2Oz">
                                               <property role="TrG5h" value="reference" />
-                                              <node concept="2jxLKc" id="4iGVAJE7atz" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="EsIH9l3XO3" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -10072,9 +10072,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="EsE2hyhpwH" role="1bW2Oz">
+                  <node concept="gl6BB" id="EsIH9l3XO4" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="EsE2hyhpwI" role="1tU5fm" />
+                    <node concept="2jxLKc" id="EsIH9l3XO5" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10098,9 +10098,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4iGVAJE8JWN" role="1bW2Oz">
+                <node concept="gl6BB" id="EsIH9l3XO6" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4iGVAJE8JWO" role="1tU5fm" />
+                  <node concept="2jxLKc" id="EsIH9l3XO7" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10129,7 +10129,7 @@
                     </node>
                     <node concept="2OqwBi" id="3eH6BL4f4yT" role="37wK5m">
                       <node concept="37vLTw" id="3eH6BL4f3vG" role="2Oq$k0">
-                        <ref role="3cqZAo" node="EsE2hyhvJ4" resolve="it" />
+                        <ref role="3cqZAo" node="EsIH9l3XO8" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="3eH6BL4f6Ht" role="2OqNvi">
                         <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -10138,9 +10138,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="EsE2hyhvJ4" role="1bW2Oz">
+              <node concept="gl6BB" id="EsIH9l3XO8" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="EsE2hyhvJ5" role="1tU5fm" />
+                <node concept="2jxLKc" id="EsIH9l3XO9" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -12396,9 +12396,6 @@
                     <ref role="3uigEE" to="rppw:2hbaSyB0HRN" resolve="AbstractUnitPrefix" />
                   </node>
                   <node concept="2OqwBi" id="1eut2uTTmMn" role="33vP2m">
-                    <node concept="37vLTw" id="ijdpu3bl3R" role="2Oq$k0">
-                      <ref role="3cqZAo" node="ijdpu3bl3M" resolve="manager" />
-                    </node>
                     <node concept="liA8E" id="1eut2uTTmMs" role="2OqNvi">
                       <ref role="37wK5l" to="rppw:6RONOaU4oEU" resolve="findPrefix" />
                       <node concept="2OqwBi" id="1eut2uTTmMt" role="37wK5m">
@@ -12410,6 +12407,9 @@
                         </node>
                       </node>
                     </node>
+                    <node concept="37vLTw" id="ijdpu3bl3R" role="2Oq$k0">
+                      <ref role="3cqZAo" node="ijdpu3bl3M" resolve="manager" />
+                    </node>
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/org.iets3.core.expr.typetags.physunits.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/org.iets3.core.expr.typetags.physunits.mpl
index ff141003f1..73a0e03b69 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/org.iets3.core.expr.typetags.physunits.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.physunits/org.iets3.core.expr.typetags.physunits.mpl
@@ -6,12 +6,11 @@
     </modelRoot>
   </models>
   <facets>
-    <facet type="java">
+    <facet type="java" compile="mps" classes="mps" ext="yes">
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">6fadc44e-69c2-4a4a-9d16-7ebf5f8d3ba0(org.iets3.core.expr.math)</dependency>
@@ -53,7 +52,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:5dc5fc0d-37ef-4782-8192-8b5ce1f69f80:jetbrains.mps.baseLanguage.extensionMethods" version="0" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
@@ -81,7 +80,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.behavior.mps
index d015407c66..fabf449203 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.behavior.mps
@@ -87,7 +87,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -95,7 +95,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -106,6 +106,7 @@
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -162,7 +163,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -173,7 +174,6 @@
       <concept id="1151689724996" name="jetbrains.mps.baseLanguage.collections.structure.SequenceType" flags="in" index="A3Dl8">
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1165525191778" name="jetbrains.mps.baseLanguage.collections.structure.GetFirstOperation" flags="nn" index="1uHKPH" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
     </language>
@@ -361,7 +361,7 @@
                                 <ref role="2pIpSl" to="a0oj:71Zj$i0ct2e" resolve="quantity" />
                                 <node concept="36biLy" id="76ZhK6XZ3Iq" role="28nt2d">
                                   <node concept="37vLTw" id="76ZhK6XZ3IR" role="36biLW">
-                                    <ref role="3cqZAo" node="76ZhK6XVzgl" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817iz" resolve="it" />
                                   </node>
                                 </node>
                               </node>
@@ -372,9 +372,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="76ZhK6XVzgl" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817iz" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="76ZhK6XVzgm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817i$" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.editor.mps
index c3fe3a462a..8ac5aa5575 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.editor.mps
@@ -20,7 +20,7 @@
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
       <concept id="5991739802479784074" name="jetbrains.mps.lang.editor.structure.MenuTypeNamed" flags="ng" index="22hDWg" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -77,10 +77,10 @@
       <concept id="1164996492011" name="jetbrains.mps.lang.editor.structure.CellMenuPart_ReferentPrimary" flags="ng" index="ZcVJ$">
         <child id="6918029743851332884" name="matchingText" index="1NQq9M" />
       </concept>
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -98,10 +98,10 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="3982520150125052579" name="jetbrains.mps.lang.editor.structure.QueryFunction_AttributeStyleParameter" flags="ig" index="3sjG9q" />
@@ -126,7 +126,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY">
@@ -134,14 +134,14 @@
         <child id="16410578721629643" name="emptyCellModel" index="2ruayu" />
       </concept>
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
-      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ng" index="1FNN41">
+      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ngI" index="1FNN41">
         <child id="843003353410424960" name="outputConceptReference" index="1FNMel" />
       </concept>
       <concept id="843003353410421233" name="jetbrains.mps.lang.editor.structure.OptionalConceptReference" flags="ng" index="1FNNb$">
         <reference id="843003353410421234" name="concept" index="1FNNbB" />
       </concept>
       <concept id="5624877018226900666" name="jetbrains.mps.lang.editor.structure.TransformationMenu" flags="ng" index="3ICUPy" />
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="6684862045052272180" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_SubstituteMenu_NodeToWrap" flags="ng" index="3N4pyC" />
@@ -246,7 +246,7 @@
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -327,7 +327,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.structure.mps
index 9892030482..1172f07200 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.structure.mps
@@ -35,7 +35,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.typesystem.mps
index f216c124a0..b94023d928 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/models/org.iets3.core.expr.typetags.units.quantity.typesystem.mps
@@ -10,7 +10,7 @@
     <import index="hm2y" ref="r:66e07cb4-a4b0-4bf3-a36d-5e9ed1ff1bd3(org.iets3.core.expr.base.structure)" />
     <import index="w1hl" ref="r:04b74a30-84ff-4d44-89e3-8084278f9c79(org.iets3.core.expr.typetags.structure)" />
     <import index="qlm2" ref="r:c0482758-b46b-48c3-8482-fa4a3115b53b(org.iets3.core.expr.typetags.behavior)" />
-    <import index="a0oj" ref="r:7add344e-59b0-49a5-a0a7-0e0dc1798815(org.iets3.core.expr.typetags.units.dimensions.structure)" />
+    <import index="a0oj" ref="r:7add344e-59b0-49a5-a0a7-0e0dc1798815(org.iets3.core.expr.typetags.units.quantity.structure)" />
     <import index="b0gq" ref="r:1eb914ff-b91c-4cbc-93c6-3ecde7821894(org.iets3.core.expr.typetags.units.structure)" />
   </imports>
   <registry>
@@ -71,7 +71,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -134,7 +134,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/org.iets3.core.expr.typetags.units.quantity.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/org.iets3.core.expr.typetags.units.quantity.mpl
index 033032ecd4..db3d0ce808 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/org.iets3.core.expr.typetags.units.quantity.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units.quantity/org.iets3.core.expr.typetags.units.quantity.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">5186c6ce-428c-4f09-a9df-73d9e86c27d3(org.iets3.core.expr.typetags)</dependency>
     <dependency reexport="false">cb91a38e-738a-4811-a96d-448d08f526fa(org.iets3.core.expr.typetags.units)</dependency>
@@ -28,7 +27,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/behavior.mps
index c5dbae59cb..486fc2078d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/behavior.mps
@@ -5,7 +5,7 @@
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="760a0a8c-eabb-4521-8bfd-65db761a9ba3" name="jetbrains.mps.baseLanguage.logging" version="-1" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
@@ -83,7 +83,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -196,7 +196,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -219,7 +219,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -242,6 +242,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -393,7 +394,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -453,7 +454,6 @@
       <concept id="1201306600024" name="jetbrains.mps.baseLanguage.collections.structure.ContainsKeyOperation" flags="nn" index="2Nt0df">
         <child id="1201654602639" name="key" index="38cxEo" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -1440,7 +1440,7 @@
                   <node concept="3clFbF" id="RIvadv2Ivk" role="3cqZAp">
                     <node concept="2OqwBi" id="RIvadv2IDr" role="3clFbG">
                       <node concept="37vLTw" id="RIvadv2Ivj" role="2Oq$k0">
-                        <ref role="3cqZAo" node="RIvadv2InN" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817iA" resolve="it" />
                       </node>
                       <node concept="3TrEf2" id="2Fd5B1gxdCm" role="2OqNvi">
                         <ref role="3Tt5mk" to="b0gq:7eOyx9r3qFW" resolve="unit" />
@@ -1448,9 +1448,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="RIvadv2InN" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817iA" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="RIvadv2InO" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817iB" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1722,7 +1722,7 @@
                                 <ref role="2pIpSl" to="b0gq:7eOyx9r3qFW" resolve="unit" />
                                 <node concept="36biLy" id="76ZhK6XZ3Iq" role="28nt2d">
                                   <node concept="37vLTw" id="76ZhK6XZ3IR" role="36biLW">
-                                    <ref role="3cqZAo" node="76ZhK6XVzgl" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817iC" resolve="it" />
                                   </node>
                                 </node>
                               </node>
@@ -1733,9 +1733,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="76ZhK6XVzgl" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817iC" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="76ZhK6XVzgm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817iD" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2087,7 +2087,7 @@
                                           <node concept="2OqwBi" id="49jLf4T7o5E" role="3uHU7B">
                                             <node concept="2OqwBi" id="49jLf4T7ia7" role="2Oq$k0">
                                               <node concept="37vLTw" id="49jLf4T7hsJ" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="5sKgdctVKP4" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817iE" resolve="it" />
                                               </node>
                                               <node concept="2Rxl7S" id="49jLf4T7n0Z" role="2OqNvi" />
                                             </node>
@@ -2098,7 +2098,7 @@
                                         </node>
                                         <node concept="2OqwBi" id="5sKgdctVOj_" role="3uHU7w">
                                           <node concept="37vLTw" id="5sKgdctVL$D" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="5sKgdctVKP4" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817iE" resolve="it" />
                                           </node>
                                           <node concept="3TrcHB" id="5sKgdctVQyp" role="2OqNvi">
                                             <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -2107,9 +2107,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="5sKgdctVKP4" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817iE" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="5sKgdctVKP5" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817iF" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -3059,7 +3059,7 @@
                   <node concept="3clFbF" id="7UgeC20_Fvo" role="3cqZAp">
                     <node concept="2OqwBi" id="7UgeC20_Fvp" role="3clFbG">
                       <node concept="37vLTw" id="7UgeC20_Fvq" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7UgeC20_Fvv" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817iG" resolve="it" />
                       </node>
                       <node concept="1P9Npp" id="7UgeC20_Fvr" role="2OqNvi">
                         <node concept="2OqwBi" id="7UgeC20_Fvs" role="1P9ThW">
@@ -3072,9 +3072,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7UgeC20_Fvv" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817iG" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7UgeC20_Fvw" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817iH" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4158,7 +4158,7 @@
                       <node concept="2OqwBi" id="4DRdDUoCUJf" role="3clFbG">
                         <node concept="2OqwBi" id="4DRdDUoCTgo" role="2Oq$k0">
                           <node concept="37vLTw" id="4DRdDUoCT8W" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4DRdDUoCT4u" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iI" resolve="it" />
                           </node>
                           <node concept="3TrcHB" id="4DRdDUoCU6$" role="2OqNvi">
                             <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -4173,9 +4173,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4DRdDUoCT4u" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817iI" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4DRdDUoCT4v" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817iJ" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4280,14 +4280,14 @@
                             <ref role="3cqZAo" node="4DRdDUoCGZE" resolve="nounit" />
                           </node>
                           <node concept="37vLTw" id="2Ux6GHgYxsb" role="3uHU7B">
-                            <ref role="3cqZAo" node="2Ux6GHgYw2N" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iK" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2Ux6GHgYw2N" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817iK" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2Ux6GHgYw2O" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817iL" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -4622,14 +4622,14 @@
                         <node concept="1rXfSq" id="3M4aPu_2GB9" role="3clFbG">
                           <ref role="37wK5l" node="3M4aPu_2pcA" resolve="isIntegerType" />
                           <node concept="37vLTw" id="3M4aPu_2GQ9" role="37wK5m">
-                            <ref role="3cqZAo" node="3M4aPu_2GnG" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iM" resolve="it" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3M4aPu_2GnG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817iM" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3M4aPu_2GnH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817iN" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -7625,7 +7625,7 @@
                       <node concept="3clFbF" id="5sKgdctSk0y" role="3cqZAp">
                         <node concept="2OqwBi" id="5sKgdctSkC7" role="3clFbG">
                           <node concept="37vLTw" id="5sKgdctSk0x" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5sKgdctSgiV" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iO" resolve="it" />
                           </node>
                           <node concept="2OwXpG" id="5sKgdctSl$e" role="2OqNvi">
                             <ref role="2Oxat5" node="5dSoB2LOIpJ" resolve="unit" />
@@ -7633,9 +7633,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5sKgdctSgiV" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817iO" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="5sKgdctSgiW" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817iP" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -7654,7 +7654,7 @@
                         <node concept="3clFbF" id="5sKgdctSZp4" role="3cqZAp">
                           <node concept="2OqwBi" id="5sKgdctT0oL" role="3clFbG">
                             <node concept="37vLTw" id="5sKgdctSZp3" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5sKgdctSVqP" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817iQ" resolve="it" />
                             </node>
                             <node concept="2OwXpG" id="5sKgdctT4Gr" role="2OqNvi">
                               <ref role="2Oxat5" node="5dSoB2LOIpJ" resolve="unit" />
@@ -7662,9 +7662,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="5sKgdctSVqP" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817iQ" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="5sKgdctSVqQ" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817iR" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -7761,7 +7761,7 @@
                       <node concept="2OqwBi" id="3htFKtcjhWD" role="37vLTx">
                         <node concept="2OqwBi" id="3htFKtcjhqW" role="2Oq$k0">
                           <node concept="37vLTw" id="3htFKtcjh8W" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3htFKtciTSF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iS" resolve="it" />
                           </node>
                           <node concept="3AV6Ez" id="3htFKtcjhEi" role="2OqNvi" />
                         </node>
@@ -7772,7 +7772,7 @@
                       <node concept="3EllGN" id="3htFKtcjeJQ" role="37vLTJ">
                         <node concept="2OqwBi" id="3htFKtcjffF" role="3ElVtu">
                           <node concept="37vLTw" id="3htFKtcjeYq" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3htFKtciTSF" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iS" resolve="it" />
                           </node>
                           <node concept="3AY5_j" id="3htFKtcjfp7" role="2OqNvi" />
                         </node>
@@ -7783,9 +7783,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3htFKtciTSF" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817iS" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3htFKtciTSG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817iT" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -7880,7 +7880,7 @@
                       <node concept="2OqwBi" id="6q$NxWeXxCB" role="37vLTx">
                         <node concept="2OqwBi" id="6q$NxWeXwHl" role="2Oq$k0">
                           <node concept="37vLTw" id="6q$NxWeXwbz" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6q$NxWeXtSa" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iU" resolve="it" />
                           </node>
                           <node concept="3AV6Ez" id="6q$NxWeXx6R" role="2OqNvi" />
                         </node>
@@ -7894,7 +7894,7 @@
                       <node concept="3EllGN" id="6q$NxWeXutC" role="37vLTJ">
                         <node concept="2OqwBi" id="6q$NxWeXvj4" role="3ElVtu">
                           <node concept="37vLTw" id="6q$NxWeXuIe" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6q$NxWeXtSa" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817iU" resolve="it" />
                           </node>
                           <node concept="3AY5_j" id="6q$NxWeXvG3" role="2OqNvi" />
                         </node>
@@ -7905,9 +7905,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6q$NxWeXtSa" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817iU" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6q$NxWeXtSb" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817iV" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/constraints.mps
index 87dd129936..e98408bc2a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/constraints.mps
@@ -69,7 +69,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -156,7 +156,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/editor.mps
index 7a8e093697..f71b75625f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/editor.mps
@@ -31,7 +31,7 @@
       <concept id="1402906326895675325" name="jetbrains.mps.lang.editor.structure.CellActionMap_FunctionParm_selectedNode" flags="nn" index="0IXxy" />
       <concept id="5991739802479784074" name="jetbrains.mps.lang.editor.structure.MenuTypeNamed" flags="ng" index="22hDWg" />
       <concept id="5991739802479784073" name="jetbrains.mps.lang.editor.structure.MenuTypeDefault" flags="ng" index="22hDWj" />
-      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ng" index="22mbnS">
+      <concept id="2000375450116454183" name="jetbrains.mps.lang.editor.structure.ISubstituteMenu" flags="ngI" index="22mbnS">
         <child id="414384289274416996" name="parts" index="3ft7WO" />
       </concept>
       <concept id="2000375450116423800" name="jetbrains.mps.lang.editor.structure.SubstituteMenu" flags="ng" index="22mcaB" />
@@ -117,10 +117,10 @@
       <concept id="1164996492011" name="jetbrains.mps.lang.editor.structure.CellMenuPart_ReferentPrimary" flags="ng" index="ZcVJ$">
         <child id="6918029743851332884" name="matchingText" index="1NQq9M" />
       </concept>
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -152,14 +152,14 @@
       <concept id="1225456267680" name="jetbrains.mps.lang.editor.structure.RGBColor" flags="ng" index="1iSF2X">
         <property id="1225456424731" name="value" index="1iTho6" />
       </concept>
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
       <concept id="7597241200646296619" name="jetbrains.mps.lang.editor.structure.QueryFunction_SNode" flags="in" index="3k4GqP" />
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="3982520150125052579" name="jetbrains.mps.lang.editor.structure.QueryFunction_AttributeStyleParameter" flags="ig" index="3sjG9q" />
@@ -188,7 +188,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY">
@@ -196,7 +196,7 @@
         <child id="16410578721629643" name="emptyCellModel" index="2ruayu" />
       </concept>
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR" />
-      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ng" index="1FNN41">
+      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ngI" index="1FNN41">
         <child id="843003353410424960" name="outputConceptReference" index="1FNMel" />
       </concept>
       <concept id="843003353410421233" name="jetbrains.mps.lang.editor.structure.OptionalConceptReference" flags="ng" index="1FNNb$">
@@ -209,7 +209,7 @@
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
       <concept id="5624877018226900666" name="jetbrains.mps.lang.editor.structure.TransformationMenu" flags="ng" index="3ICUPy" />
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="6684862045052272180" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_SubstituteMenu_NodeToWrap" flags="ng" index="3N4pyC" />
@@ -321,7 +321,7 @@
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -340,7 +340,7 @@
       <concept id="8207263695490893775" name="com.mbeddr.mpsutil.grammarcells.structure.CellBasedRule" flags="ng" index="2ElW$n">
         <child id="8207263695490893799" name="symbols" index="2ElW$Z" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839203705" name="com.mbeddr.mpsutil.grammarcells.structure.FlagCell" flags="sg" stub="1984422498400729024" index="1kHk_G">
@@ -435,7 +435,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/intentions.mps
index ae7afb1e2a..8cc23840b3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/intentions.mps
@@ -74,7 +74,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.migration.mps
index 5c32533a65..6c575c96f3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.migration.mps
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:00045955-9409-4c08-901b-5694dc479158(org.iets3.core.expr.typetags.units.migration)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="90746344-04fd-4286-97d5-b46ae6a81709" name="jetbrains.mps.lang.migration" version="-1" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="-1" />
@@ -87,7 +88,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -101,7 +102,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -117,6 +118,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -195,7 +197,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -249,7 +251,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1197683403723" name="jetbrains.mps.baseLanguage.collections.structure.MapType" flags="in" index="3rvAFt">
@@ -2195,7 +2196,7 @@
                             <node concept="2OqwBi" id="3slXa_gMfyB" role="3clFbG">
                               <node concept="2OqwBi" id="3slXa_gMdFc" role="2Oq$k0">
                                 <node concept="37vLTw" id="3slXa_gMd5q" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="3slXa_gMcJe" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817jc" resolve="it" />
                                 </node>
                                 <node concept="2yIwOk" id="3slXa_gMeJR" role="2OqNvi" />
                               </node>
@@ -2207,9 +2208,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="3slXa_gMcJe" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817jc" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="3slXa_gMcJf" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817jd" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2265,7 +2266,7 @@
                             <node concept="2OqwBi" id="6Z6cUqSMRQ_" role="3uHU7w">
                               <node concept="2OqwBi" id="6Z6cUqSMQwj" role="2Oq$k0">
                                 <node concept="37vLTw" id="6Z6cUqSMQ3Q" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="6Z6cUqSMLbc" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817je" resolve="it" />
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                                 <node concept="3TrEf2" id="6Z6cUqSMRlx" role="2OqNvi">
                                   <ref role="3Tt5mk" to="b0gq:1KUmgSFpwWq" resolve="dimension" />
@@ -2276,7 +2277,7 @@
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                               <node concept="2OqwBi" id="6Z6cUqSMLWz" role="2Oq$k0">
                                 <node concept="37vLTw" id="6Z6cUqSMLss" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="6Z6cUqSMLbc" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817je" resolve="it" />
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                                 <node concept="3TrcHB" id="6Z6cUqSMMJw" role="2OqNvi">
                                   <ref role="3TsBF5" to="b0gq:7eOyx9r3jQ8" resolve="description" />
@@ -2287,9 +2288,9 @@
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-                      <node concept="Rh6nW" id="6Z6cUqSMLbc" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817je" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6Z6cUqSMLbd" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817jf" role="1tU5fm" />
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                     </node>
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@@ -2309,13 +2310,13 @@
                           <node concept="1Ls8ON" id="1KUmgSFqlsm" role="33vP2m">
                             <node concept="2OqwBi" id="1KUmgSFqlsn" role="1Lso8e">
                               <node concept="37vLTw" id="1KUmgSFqlso" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1KUmgSFqiQH" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817jg" resolve="it" />
                               </node>
                               <node concept="1mfA1w" id="1KUmgSFqlsp" role="2OqNvi" />
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                             <node concept="2OqwBi" id="1KUmgSFqlsq" role="1Lso8e">
                               <node concept="37vLTw" id="1KUmgSFqlsr" role="2Oq$k0">
-                                <ref role="3cqZAo" node="1KUmgSFqiQH" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817jg" resolve="it" />
                               </node>
                               <node concept="2NL2c5" id="1KUmgSFqlss" role="2OqNvi" />
                             </node>
@@ -2368,15 +2369,15 @@
                           </node>
                           <node concept="TSZUe" id="1KUmgSFqzzD" role="2OqNvi">
                             <node concept="37vLTw" id="1KUmgSFqzN0" role="25WWJ7">
-                              <ref role="3cqZAo" node="1KUmgSFqiQH" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817jg" resolve="it" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1KUmgSFqiQH" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817jg" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1KUmgSFqiQI" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817jh" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2418,7 +2419,7 @@
                         <node concept="2OqwBi" id="1KUmgSFqKE$" role="3clFbG">
                           <node concept="2OqwBi" id="1KUmgSFqFXA" role="2Oq$k0">
                             <node concept="37vLTw" id="1KUmgSFqFAk" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1KUmgSFqCAe" resolve="parentAndUnits" />
+                              <ref role="3cqZAo" node="4z0AnX817jo" resolve="parentAndUnits" />
                             </node>
                             <node concept="3AV6Ez" id="1KUmgSFqGlQ" role="2OqNvi" />
                           </node>
@@ -2439,7 +2440,7 @@
                                         <node concept="3EllGN" id="1KUmgSFr0hz" role="37vLTJ">
                                           <node concept="2OqwBi" id="1KUmgSFr0h$" role="3ElVtu">
                                             <node concept="37vLTw" id="1KUmgSFr0h_" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="1KUmgSFqP61" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817ji" resolve="it" />
                                             </node>
                                             <node concept="3TrcHB" id="1KUmgSFr0hA" role="2OqNvi">
                                               <ref role="3TsBF5" to="b0gq:7eOyx9r3jQ8" resolve="description" />
@@ -2457,7 +2458,7 @@
                                     <node concept="3EllGN" id="1KUmgSFqQBi" role="3uHU7B">
                                       <node concept="2OqwBi" id="1KUmgSFqS_H" role="3ElVtu">
                                         <node concept="37vLTw" id="1KUmgSFqRv7" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="1KUmgSFqP61" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817ji" resolve="it" />
                                         </node>
                                         <node concept="3TrcHB" id="1KUmgSFqU8V" role="2OqNvi">
                                           <ref role="3TsBF5" to="b0gq:7eOyx9r3jQ8" resolve="description" />
@@ -2474,7 +2475,7 @@
                                     <node concept="3EllGN" id="1KUmgSFr59t" role="2Oq$k0">
                                       <node concept="2OqwBi" id="1KUmgSFr59u" role="3ElVtu">
                                         <node concept="37vLTw" id="1KUmgSFr59v" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="1KUmgSFqP61" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817ji" resolve="it" />
                                         </node>
                                         <node concept="3TrcHB" id="1KUmgSFr59w" role="2OqNvi">
                                           <ref role="3TsBF5" to="b0gq:7eOyx9r3jQ8" resolve="description" />
@@ -2486,15 +2487,15 @@
                                     </node>
                                     <node concept="TSZUe" id="1KUmgSFrefL" role="2OqNvi">
                                       <node concept="37vLTw" id="1KUmgSFrezJ" role="25WWJ7">
-                                        <ref role="3cqZAo" node="1KUmgSFqP61" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817ji" resolve="it" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="1KUmgSFqP61" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817ji" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="1KUmgSFqP62" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817jj" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -2522,7 +2523,7 @@
                                           <node concept="WxPPo" id="1KUmgSFrlpn" role="28ntcv">
                                             <node concept="2OqwBi" id="1KUmgSFrlpo" role="WxPPp">
                                               <node concept="37vLTw" id="1KUmgSFrlpp" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="1KUmgSFrhp0" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817jm" resolve="it" />
                                               </node>
                                               <node concept="3AY5_j" id="1KUmgSFrlpq" role="2OqNvi" />
                                             </node>
@@ -2536,7 +2537,7 @@
                                   <node concept="2OqwBi" id="1KUmgSFrsEp" role="3clFbG">
                                     <node concept="2OqwBi" id="1KUmgSFro8I" role="2Oq$k0">
                                       <node concept="37vLTw" id="1KUmgSFrnH3" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="1KUmgSFrhp0" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817jm" resolve="it" />
                                       </node>
                                       <node concept="3AV6Ez" id="1KUmgSFroM8" role="2OqNvi" />
                                     </node>
@@ -2550,7 +2551,7 @@
                                               </node>
                                               <node concept="2OqwBi" id="1KUmgSFryyy" role="37vLTJ">
                                                 <node concept="37vLTw" id="1KUmgSFrxOw" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="1KUmgSFrxmZ" resolve="it" />
+                                                  <ref role="3cqZAo" node="4z0AnX817jk" resolve="it" />
                                                 </node>
                                                 <node concept="3TrEf2" id="1KUmgSFrzIL" role="2OqNvi">
                                                   <ref role="3Tt5mk" to="b0gq:1KUmgSFpwWq" resolve="dimension" />
@@ -2559,9 +2560,9 @@
                                             </node>
                                           </node>
                                         </node>
-                                        <node concept="Rh6nW" id="1KUmgSFrxmZ" role="1bW2Oz">
+                                        <node concept="gl6BB" id="4z0AnX817jk" role="1bW2Oz">
                                           <property role="TrG5h" value="it" />
-                                          <node concept="2jxLKc" id="1KUmgSFrxn0" role="1tU5fm" />
+                                          <node concept="2jxLKc" id="4z0AnX817jl" role="1tU5fm" />
                                         </node>
                                       </node>
                                     </node>
@@ -2577,7 +2578,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="1KUmgSFrDIM" role="1LFl5Q">
                                         <node concept="37vLTw" id="1KUmgSFrDIN" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="1KUmgSFqCAe" resolve="parentAndUnits" />
+                                          <ref role="3cqZAo" node="4z0AnX817jo" resolve="parentAndUnits" />
                                         </node>
                                         <node concept="3AY5_j" id="1KUmgSFrDIO" role="2OqNvi" />
                                       </node>
@@ -2593,7 +2594,7 @@
                                     <node concept="1LFfDK" id="1KUmgSFrHdZ" role="33vP2m">
                                       <node concept="2OqwBi" id="1KUmgSFrHe0" role="1LFl5Q">
                                         <node concept="37vLTw" id="1KUmgSFrHe1" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="1KUmgSFqCAe" resolve="parentAndUnits" />
+                                          <ref role="3cqZAo" node="4z0AnX817jo" resolve="parentAndUnits" />
                                         </node>
                                         <node concept="3AY5_j" id="1KUmgSFrHe2" role="2OqNvi" />
                                       </node>
@@ -2622,9 +2623,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="1KUmgSFrhp0" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817jm" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="1KUmgSFrhp1" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817jn" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -2632,9 +2633,9 @@
                       </node>
                       <node concept="3clFbH" id="1KUmgSFqCOv" role="3cqZAp" />
                     </node>
-                    <node concept="Rh6nW" id="1KUmgSFqCAe" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817jo" role="1bW2Oz">
                       <property role="TrG5h" value="parentAndUnits" />
-                      <node concept="2jxLKc" id="1KUmgSFqCAf" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817jp" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2653,7 +2654,7 @@
                           <node concept="2OqwBi" id="6Z6cUqSN5Dy" role="3clFbG">
                             <node concept="2OqwBi" id="6Z6cUqSN4u8" role="2Oq$k0">
                               <node concept="37vLTw" id="6Z6cUqSN48h" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6Z6cUqSN40Y" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817jq" resolve="it" />
                               </node>
                               <node concept="3TrcHB" id="6Z6cUqSN582" role="2OqNvi">
                                 <ref role="3TsBF5" to="b0gq:7eOyx9r3jQ8" resolve="description" />
@@ -2663,9 +2664,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="6Z6cUqSN40Y" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817jq" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6Z6cUqSN40Z" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817jr" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2678,7 +2679,7 @@
                           <node concept="10Nm6u" id="6Z6cUqSN8e$" role="37vLTx" />
                           <node concept="2OqwBi" id="6Z6cUqSN71A" role="37vLTJ">
                             <node concept="37vLTw" id="6Z6cUqSN6IG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6Z6cUqSN6Dx" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817js" resolve="it" />
                             </node>
                             <node concept="3TrcHB" id="6Z6cUqSN7I8" role="2OqNvi">
                               <ref role="3TsBF5" to="b0gq:7eOyx9r3jQ8" resolve="description" />
@@ -2687,9 +2688,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6Z6cUqSN6Dx" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817js" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6Z6cUqSN6Dy" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817jt" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.plugin.mps
index f166bea406..bc14789031 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/org.iets3.core.expr.typetags.units.plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="c9d137c4-3259-44f8-80ff-33ab2b506ee4" name="jetbrains.mps.lang.util.order" version="0" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="2" />
@@ -101,7 +101,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -160,7 +160,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -221,7 +221,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -240,7 +240,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -281,6 +281,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
         <child id="1235746996653" name="function" index="2SgG2M" />
         <child id="1235747002942" name="parameter" index="2SgHGx" />
@@ -498,7 +499,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -554,7 +555,6 @@
       <concept id="1201306600024" name="jetbrains.mps.baseLanguage.collections.structure.ContainsKeyOperation" flags="nn" index="2Nt0df">
         <child id="1201654602639" name="key" index="38cxEo" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -657,14 +657,14 @@
                         <ref role="37wK5l" node="1JTgXSYRK0d" resolve="hasSingleUnitSpecificationTag" />
                         <ref role="1Pybhc" node="7WxTcH$fNQY" resolve="UnitTypeHelper" />
                         <node concept="37vLTw" id="7WxTcH$fRMh" role="37wK5m">
-                          <ref role="3cqZAo" node="2rzAw9UVwe9" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ju" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2rzAw9UVwe9" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ju" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2rzAw9UVwea" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817jv" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -687,14 +687,14 @@
                         <ref role="37wK5l" to="65nr:1JTgXSYRK0d" resolve="hasSingleUnitSpecificationTag" />
                         <ref role="1Pybhc" to="65nr:7WxTcH$fNQY" resolve="PhysUnitTypeHelper" />
                         <node concept="37vLTw" id="6qexOA4T36i" role="37wK5m">
-                          <ref role="3cqZAo" node="6qexOA4T36j" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3up" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6qexOA4T36j" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3up" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6qexOA4T36k" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3uq" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -725,14 +725,14 @@
                               <ref role="37wK5l" node="1JTgXSYRK0d" resolve="hasSingleUnitSpecificationTag" />
                               <ref role="1Pybhc" node="7WxTcH$fNQY" resolve="UnitTypeHelper" />
                               <node concept="37vLTw" id="7WxTcH$fVCh" role="37wK5m">
-                                <ref role="3cqZAo" node="2rzAw9UW39_" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1b3ur" resolve="it" />
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="2rzAw9UW39_" role="1bW2Oz">
+                        <node concept="gl6BB" id="2FZhxW1b3ur" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="2rzAw9UW39A" role="1tU5fm" />
+                          <node concept="2jxLKc" id="2FZhxW1b3us" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -746,14 +746,14 @@
                               <ref role="cht4Q" to="w1hl:1xEzHAktP2Q" resolve="TaggedType" />
                             </node>
                             <node concept="37vLTw" id="2rzAw9UW39H" role="1m5AlR">
-                              <ref role="3cqZAo" node="2rzAw9UW39I" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3ut" resolve="it" />
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2rzAw9UW39I" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1b3ut" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2rzAw9UW39J" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1b3uu" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -987,15 +987,15 @@
                                   <ref role="37wK5l" node="1JTgXSYRK0d" resolve="hasSingleUnitSpecificationTag" />
                                   <ref role="1Pybhc" node="7WxTcH$fNQY" resolve="UnitTypeHelper" />
                                   <node concept="37vLTw" id="66PK8Syl9ws" role="37wK5m">
-                                    <ref role="3cqZAo" node="2rzAw9UZA6B" resolve="it" />
+                                    <ref role="3cqZAo" node="2FZhxW1b3uv" resolve="it" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="2rzAw9UZA6B" role="1bW2Oz">
+                          <node concept="gl6BB" id="2FZhxW1b3uv" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="2rzAw9UZA6C" role="1tU5fm" />
+                            <node concept="2jxLKc" id="2FZhxW1b3uw" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1219,14 +1219,14 @@
                                 <ref role="37wK5l" to="65nr:1JTgXSYRK0d" resolve="hasSingleUnitSpecificationTag" />
                                 <ref role="1Pybhc" to="65nr:7WxTcH$fNQY" resolve="PhysUnitTypeHelper" />
                                 <node concept="37vLTw" id="6qexOA4Unr8" role="37wK5m">
-                                  <ref role="3cqZAo" node="6qexOA4Unr9" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3ux" resolve="it" />
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="6qexOA4Unr9" role="1bW2Oz">
+                          <node concept="gl6BB" id="2FZhxW1b3ux" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="6qexOA4Unra" role="1tU5fm" />
+                            <node concept="2jxLKc" id="2FZhxW1b3uy" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1240,14 +1240,14 @@
                                 <ref role="cht4Q" to="w1hl:1xEzHAktP2Q" resolve="TaggedType" />
                               </node>
                               <node concept="37vLTw" id="6qexOA4Unrh" role="1m5AlR">
-                                <ref role="3cqZAo" node="6qexOA4Unri" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1b3uz" resolve="it" />
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="6qexOA4Unri" role="1bW2Oz">
+                        <node concept="gl6BB" id="2FZhxW1b3uz" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="6qexOA4Unrj" role="1tU5fm" />
+                          <node concept="2jxLKc" id="2FZhxW1b3u$" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1481,15 +1481,15 @@
                                     <ref role="37wK5l" to="65nr:1JTgXSYRK0d" resolve="hasSingleUnitSpecificationTag" />
                                     <ref role="1Pybhc" to="65nr:7WxTcH$fNQY" resolve="PhysUnitTypeHelper" />
                                     <node concept="37vLTw" id="6qexOA4UnsO" role="37wK5m">
-                                      <ref role="3cqZAo" node="6qexOA4UnsP" resolve="it" />
+                                      <ref role="3cqZAo" node="2FZhxW1b3u_" resolve="it" />
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6qexOA4UnsP" role="1bW2Oz">
+                            <node concept="gl6BB" id="2FZhxW1b3u_" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="6qexOA4UnsQ" role="1tU5fm" />
+                              <node concept="2jxLKc" id="2FZhxW1b3uA" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -1809,7 +1809,7 @@
                         <ref role="37wK5l" to="dntf:5pSqQr$AdB$" resolve="getUnitSpecification" />
                         <ref role="1Pybhc" to="dntf:4jkbLB5RJZL" resolve="UnitConversionUtil" />
                         <node concept="37vLTw" id="2rzAw9UY1SP" role="37wK5m">
-                          <ref role="3cqZAo" node="2rzAw9UY1T2" resolve="typeWithUnit" />
+                          <ref role="3cqZAo" node="4z0AnX817jA" resolve="typeWithUnit" />
                         </node>
                       </node>
                     </node>
@@ -1843,15 +1843,15 @@
                           <ref role="3cqZAo" node="2rzAw9UY1SR" resolve="unitSpecInMap" />
                         </node>
                         <node concept="37vLTw" id="2rzAw9UY1T1" role="37wK5m">
-                          <ref role="3cqZAo" node="2rzAw9UY1T2" resolve="typeWithUnit" />
+                          <ref role="3cqZAo" node="4z0AnX817jA" resolve="typeWithUnit" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2rzAw9UY1T2" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jA" role="1bW2Oz">
                   <property role="TrG5h" value="typeWithUnit" />
-                  <node concept="2jxLKc" id="2rzAw9UY1T3" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jB" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1986,7 +1986,7 @@
                       <node concept="3clFbF" id="69hlyJ6g7p0" role="3cqZAp">
                         <node concept="2OqwBi" id="69hlyJ6g7p1" role="3clFbG">
                           <node concept="37vLTw" id="69hlyJ6g7p2" role="2Oq$k0">
-                            <ref role="3cqZAo" node="69hlyJ6g7p4" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817jC" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="69hlyJ6hZY8" role="2OqNvi">
                             <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -1994,9 +1994,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="69hlyJ6g7p4" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817jC" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="69hlyJ6g7p5" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817jD" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -2282,7 +2282,7 @@
                       <node concept="3clFbF" id="4qv99IrBJ43" role="3cqZAp">
                         <node concept="2OqwBi" id="4qv99IrBJ44" role="3clFbG">
                           <node concept="37vLTw" id="4qv99IrBJ45" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4qv99IrBJ47" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817jE" resolve="it" />
                           </node>
                           <node concept="liA8E" id="4qv99IrBJ46" role="2OqNvi">
                             <ref role="37wK5l" node="26cjRACVSeU" resolve="getPriorityLevel" />
@@ -2290,9 +2290,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4qv99IrBJ47" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817jE" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4qv99IrBJ48" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817jF" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="4qv99IrBJ49" role="2S7zOq">
@@ -2446,15 +2446,15 @@
                       <node concept="liA8E" id="3jMXg0an41g" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0alKuM" resolve="replaceQuantity" />
                         <node concept="37vLTw" id="36kPvG55S2x" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55REi" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vj" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55REi" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vj" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55REj" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vk" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2482,15 +2482,15 @@
                       <node concept="liA8E" id="1FkCRmSNSnR" role="2OqNvi">
                         <ref role="37wK5l" node="1FkCRmSKLLm" resolve="replaceQuantitySpecification" />
                         <node concept="37vLTw" id="1FkCRmSNSyv" role="37wK5m">
-                          <ref role="3cqZAo" node="1FkCRmSJRiA" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vl" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1FkCRmSJRiA" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vl" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1FkCRmSJRiB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vm" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2518,15 +2518,15 @@
                       <node concept="liA8E" id="1FkCRmSaJS5" role="2OqNvi">
                         <ref role="37wK5l" node="1FkCRmS2pPu" resolve="replaceQuantityReference" />
                         <node concept="37vLTw" id="1FkCRmSaK1w" role="37wK5m">
-                          <ref role="3cqZAo" node="1FkCRmSaIEl" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vn" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1FkCRmSaIEl" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vn" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1FkCRmSaIEm" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vo" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2551,7 +2551,7 @@
                       <node concept="liA8E" id="3jMXg0aoFOf" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0anx3K" resolve="replaceUnit" />
                         <node concept="37vLTw" id="36kPvG55WAw" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55Trz" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vp" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uu56" role="2Oq$k0">
@@ -2560,9 +2560,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55Trz" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vp" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55Tr$" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vq" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2591,16 +2591,16 @@
                         </node>
                         <node concept="2OqwBi" id="4ElwYTj7BiG" role="3uHU7B">
                           <node concept="37vLTw" id="36kPvG55Xur" role="2Oq$k0">
-                            <ref role="3cqZAo" node="36kPvG55Xgg" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1b3vr" resolve="it" />
                           </node>
                           <node concept="2NL2c5" id="4ElwYTj7Bpb" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="36kPvG55Xgg" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3vr" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="36kPvG55Xgh" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3vs" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2613,7 +2613,7 @@
                       <node concept="liA8E" id="3jMXg0asAYe" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0ar78V" resolve="replaceUnitSpecification" />
                         <node concept="37vLTw" id="36kPvG55YRw" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55T_K" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vt" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uuhQ" role="2Oq$k0">
@@ -2622,9 +2622,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55T_K" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vt" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55T_L" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vu" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2649,7 +2649,7 @@
                       <node concept="liA8E" id="3jMXg0auYVf" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0at8kg" resolve="replaceUnitReferences" />
                         <node concept="37vLTw" id="36kPvG55Y$T" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55TRj" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vv" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uuwV" role="2Oq$k0">
@@ -2658,9 +2658,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55TRj" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vv" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55TRk" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vw" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2685,7 +2685,7 @@
                       <node concept="liA8E" id="3jMXg0awCjY" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0avzao" resolve="replaceConversionRule" />
                         <node concept="37vLTw" id="36kPvG55YLM" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55U9A" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vx" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uuHg" role="2Oq$k0">
@@ -2694,9 +2694,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55U9A" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vx" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55U9B" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vy" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2721,7 +2721,7 @@
                       <node concept="liA8E" id="3jMXg0ayKVs" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0axcHR" resolve="replaceValExpression" />
                         <node concept="37vLTw" id="36kPvG55ZtB" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55UsD" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vz" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uuTo" role="2Oq$k0">
@@ -2730,9 +2730,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55UsD" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vz" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55UsE" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3v$" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2757,7 +2757,7 @@
                       <node concept="liA8E" id="3jMXg0a_13R" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0azfIr" resolve="replaceConvertExpression" />
                         <node concept="37vLTw" id="36kPvG560hg" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55UKs" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3v_" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uv53" role="2Oq$k0">
@@ -2766,9 +2766,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55UKs" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3v_" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55UKt" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vA" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2793,7 +2793,7 @@
                       <node concept="liA8E" id="3jMXg0aBUrE" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0a_OzZ" resolve="replaceConvertToTarget" />
                         <node concept="37vLTw" id="36kPvG560WS" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55V4Z" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vB" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uvg1" role="2Oq$k0">
@@ -2802,9 +2802,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55V4Z" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vB" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55V50" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vC" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2829,7 +2829,7 @@
                       <node concept="liA8E" id="3jMXg0aE3Ix" role="2OqNvi">
                         <ref role="37wK5l" node="3jMXg0aCw9V" resolve="replaceStripUnitExpression" />
                         <node concept="37vLTw" id="36kPvG561DB" role="37wK5m">
-                          <ref role="3cqZAo" node="36kPvG55VpF" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vD" resolve="it" />
                         </node>
                       </node>
                       <node concept="37vLTw" id="2hjX6q6uvr6" role="2Oq$k0">
@@ -2838,9 +2838,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="36kPvG55VpF" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vD" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="36kPvG55VpG" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vE" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2865,7 +2865,7 @@
                       <node concept="2OqwBi" id="2qDVhi7t2tV" role="3clFbG">
                         <node concept="2OqwBi" id="2qDVhi7t1Ic" role="2Oq$k0">
                           <node concept="37vLTw" id="2qDVhi7t1u_" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2qDVhi7t1gX" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1b3vF" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="2qDVhi7t29n" role="2OqNvi">
                             <ref role="3Tt5mk" to="tp3r:76efOMRCfEl" resolve="target" />
@@ -2879,9 +2879,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2qDVhi7t1gX" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3vF" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2qDVhi7t1gY" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3vG" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2897,15 +2897,15 @@
                       <node concept="liA8E" id="2qDVhi7t45R" role="2OqNvi">
                         <ref role="37wK5l" node="2qDVhi7pSQ9" resolve="replaceUnitNodeBuilderRef" />
                         <node concept="37vLTw" id="2qDVhi7t4fM" role="37wK5m">
-                          <ref role="3cqZAo" node="2qDVhi7t3i6" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vH" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2qDVhi7t3i6" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vH" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2qDVhi7t3i7" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vI" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2937,7 +2937,7 @@
                             <node concept="2OqwBi" id="5dNVOCFiBOe" role="2Oq$k0">
                               <node concept="2OqwBi" id="5dNVOCFiB9Y" role="2Oq$k0">
                                 <node concept="37vLTw" id="5dNVOCFiAYz" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5dNVOCFi$4z" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3vJ" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5dNVOCFiBkf" role="2OqNvi">
                                   <ref role="3Tt5mk" to="tp3r:4IP40Bi2KaL" resolve="concept" />
@@ -2951,9 +2951,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5dNVOCFi$4z" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3vJ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5dNVOCFi$4$" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3vK" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2969,15 +2969,15 @@
                       <node concept="liA8E" id="5dNVOCFi$4F" role="2OqNvi">
                         <ref role="37wK5l" node="5dNVOCFd8Ot" resolve="replaceNodeBuilder" />
                         <node concept="37vLTw" id="5dNVOCFi$4G" role="37wK5m">
-                          <ref role="3cqZAo" node="5dNVOCFi$4H" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vL" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5dNVOCFi$4H" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vL" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5dNVOCFi$4I" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vM" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3019,7 +3019,7 @@
                         </node>
                         <node concept="2OqwBi" id="5dNVOCFktuE" role="3uHU7B">
                           <node concept="37vLTw" id="5dNVOCFktex" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5dNVOCFkt1E" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1b3vN" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="5dNVOCFku9b" role="2OqNvi">
                             <ref role="3Tt5mk" to="tp3r:4IP40Bi38Ss" resolve="link" />
@@ -3028,9 +3028,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5dNVOCFkt1E" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3vN" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5dNVOCFkt1F" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3vO" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -3064,7 +3064,7 @@
                       </node>
                       <node concept="2OqwBi" id="5dNVOCFkyP_" role="37vLTJ">
                         <node concept="37vLTw" id="5dNVOCFky$j" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5dNVOCFkvUX" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3vP" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="5dNVOCFkzuE" role="2OqNvi">
                           <ref role="3Tt5mk" to="tp3r:4IP40Bi38Ss" resolve="link" />
@@ -3073,9 +3073,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5dNVOCFkvUX" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3vP" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5dNVOCFkvUY" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3vQ" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3487,7 +3487,7 @@
                                     <node concept="17R0WA" id="3jMXg07o0Td" role="3clFbG">
                                       <node concept="2OqwBi" id="3jMXg07o0Te" role="3uHU7w">
                                         <node concept="37vLTw" id="3jMXg07o0Tf" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3jMXg07mt1V" resolve="oldQuantity" />
+                                          <ref role="3cqZAo" node="79LXaAamL2M" resolve="oldQuantity" />
                                         </node>
                                         <node concept="3TrcHB" id="3jMXg07o0Tg" role="2OqNvi">
                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3495,7 +3495,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="3jMXg07o0Th" role="3uHU7B">
                                         <node concept="37vLTw" id="3jMXg07o0Ti" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3jMXg07o0Tk" resolve="it" />
+                                          <ref role="3cqZAo" node="79LXaAamL2K" resolve="it" />
                                         </node>
                                         <node concept="3TrcHB" id="3jMXg07o0Tj" role="2OqNvi">
                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3504,9 +3504,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="3jMXg07o0Tk" role="1bW2Oz">
+                                <node concept="gl6BB" id="79LXaAamL2K" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="3jMXg07o0Tl" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="79LXaAamL2L" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -3521,7 +3521,7 @@
                           <node concept="3EllGN" id="3jMXg07oDeh" role="37vLTJ">
                             <node concept="2OqwBi" id="38e9cZqsEr5" role="3ElVtu">
                               <node concept="37vLTw" id="3jMXg07oL0r" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3jMXg07mt1V" resolve="oldQuantity" />
+                                <ref role="3cqZAo" node="79LXaAamL2M" resolve="oldQuantity" />
                               </node>
                               <node concept="iZEcu" id="38e9cZqsUH2" role="2OqNvi" />
                             </node>
@@ -3532,9 +3532,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3jMXg07mt1V" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL2M" role="1bW2Oz">
                       <property role="TrG5h" value="oldQuantity" />
-                      <node concept="2jxLKc" id="3jMXg07mt1W" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL2N" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -3726,7 +3726,7 @@
                                           <node concept="2OqwBi" id="3$mGz_zFpCC" role="3clFbG">
                                             <node concept="2OqwBi" id="38e9cZrNlV6" role="2Oq$k0">
                                               <node concept="37vLTw" id="3$mGz_zFpCD" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="3jMXg07pg6h" resolve="oldUnit" />
+                                                <ref role="3cqZAo" node="79LXaAamL2Y" resolve="oldUnit" />
                                               </node>
                                               <node concept="3TrcHB" id="38e9cZrNBE1" role="2OqNvi">
                                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3736,7 +3736,7 @@
                                               <ref role="37wK5l" to="wyt6:~String.startsWith(java.lang.String)" resolve="startsWith" />
                                               <node concept="2OqwBi" id="3$mGz_zFpCF" role="37wK5m">
                                                 <node concept="37vLTw" id="3$mGz_zFpCG" role="2Oq$k0">
-                                                  <ref role="3cqZAo" node="3$mGz_zFpCI" resolve="it" />
+                                                  <ref role="3cqZAo" node="79LXaAamL2O" resolve="it" />
                                                 </node>
                                                 <node concept="3AY5_j" id="3$mGz_zFpCH" role="2OqNvi" />
                                               </node>
@@ -3744,9 +3744,9 @@
                                           </node>
                                         </node>
                                       </node>
-                                      <node concept="Rh6nW" id="3$mGz_zFpCI" role="1bW2Oz">
+                                      <node concept="gl6BB" id="79LXaAamL2O" role="1bW2Oz">
                                         <property role="TrG5h" value="it" />
-                                        <node concept="2jxLKc" id="3$mGz_zFpCJ" role="1tU5fm" />
+                                        <node concept="2jxLKc" id="79LXaAamL2P" role="1tU5fm" />
                                       </node>
                                     </node>
                                   </node>
@@ -3767,7 +3767,7 @@
                                         <node concept="2OqwBi" id="3$mGz_zFwtn" role="3clFbG">
                                           <node concept="2OqwBi" id="3$mGz_zFtQn" role="2Oq$k0">
                                             <node concept="37vLTw" id="3$mGz_zFtaO" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="3$mGz_zFs5d" resolve="a" />
+                                              <ref role="3cqZAo" node="79LXaAamL2Q" resolve="a" />
                                             </node>
                                             <node concept="3AY5_j" id="3$mGz_zFv3q" role="2OqNvi" />
                                           </node>
@@ -3777,13 +3777,13 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="3$mGz_zFs5d" role="1bW2Oz">
+                                    <node concept="gl6BB" id="79LXaAamL2Q" role="1bW2Oz">
                                       <property role="TrG5h" value="a" />
-                                      <node concept="2jxLKc" id="3$mGz_zFs5e" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="79LXaAamL2R" role="1tU5fm" />
                                     </node>
-                                    <node concept="Rh6nW" id="3$mGz_zFs5f" role="1bW2Oz">
+                                    <node concept="gl6BB" id="79LXaAamL2S" role="1bW2Oz">
                                       <property role="TrG5h" value="b" />
-                                      <node concept="2jxLKc" id="3$mGz_zFs5g" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="79LXaAamL2T" role="1tU5fm" />
                                     </node>
                                   </node>
                                   <node concept="1nlBCl" id="3$mGz_zFs5h" role="2Dq5b$">
@@ -3834,7 +3834,7 @@
                           <node concept="2OqwBi" id="1nMzDp6FoiM" role="2Oq$k0">
                             <node concept="2OqwBi" id="1nMzDp6EQfK" role="2Oq$k0">
                               <node concept="37vLTw" id="1nMzDp6EFB_" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3jMXg07pg6h" resolve="oldUnit" />
+                                <ref role="3cqZAo" node="79LXaAamL2Y" resolve="oldUnit" />
                               </node>
                               <node concept="3TrcHB" id="1nMzDp6F5cm" role="2OqNvi">
                                 <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3885,7 +3885,7 @@
                                       <node concept="17QB3L" id="38e9cZrOBzt" role="1tU5fm" />
                                       <node concept="2OqwBi" id="38e9cZrPu7c" role="33vP2m">
                                         <node concept="37vLTw" id="38e9cZrPf0c" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3jMXg07pg6h" resolve="oldUnit" />
+                                          <ref role="3cqZAo" node="79LXaAamL2Y" resolve="oldUnit" />
                                         </node>
                                         <node concept="3TrcHB" id="38e9cZrPJkU" role="2OqNvi">
                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3965,7 +3965,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="38e9cZrZ8_r" role="3uHU7B">
                                         <node concept="37vLTw" id="38e9cZrZ8_s" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3jMXg07pg69" resolve="it" />
+                                          <ref role="3cqZAo" node="79LXaAamL2U" resolve="it" />
                                         </node>
                                         <node concept="3TrcHB" id="38e9cZrZ8_t" role="2OqNvi">
                                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -3974,9 +3974,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="3jMXg07pg69" role="1bW2Oz">
+                                <node concept="gl6BB" id="79LXaAamL2U" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="3jMXg07pg6a" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="79LXaAamL2V" role="1tU5fm" />
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                               </node>
                             </node>
@@ -4024,7 +4024,7 @@
                                         <node concept="17R0WA" id="1a2DxsCyAc4" role="3cqZAk">
                                           <node concept="2OqwBi" id="1a2DxsCzDbQ" role="3uHU7w">
                                             <node concept="37vLTw" id="1a2DxsCyAc5" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="3jMXg07pg6h" resolve="oldUnit" />
+                                              <ref role="3cqZAo" node="79LXaAamL2Y" resolve="oldUnit" />
                                             </node>
                                             <node concept="3TrcHB" id="1a2DxsCzTHA" role="2OqNvi">
                                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -4032,7 +4032,7 @@
                                           </node>
                                           <node concept="2OqwBi" id="1a2DxsCyAc6" role="3uHU7B">
                                             <node concept="37vLTw" id="1a2DxsCyAc7" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="1a2DxsCyAc9" resolve="it" />
+                                              <ref role="3cqZAo" node="79LXaAamL2W" resolve="it" />
                                             </node>
                                             <node concept="3TrcHB" id="1a2DxsCyAc8" role="2OqNvi">
                                               <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -4041,9 +4041,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="1a2DxsCyAc9" role="1bW2Oz">
+                                    <node concept="gl6BB" id="79LXaAamL2W" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="1a2DxsCyAca" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="79LXaAamL2X" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -4092,7 +4092,7 @@
                           <node concept="3EllGN" id="3jMXg07pg6e" role="37vLTJ">
                             <node concept="2OqwBi" id="38e9cZqGz0k" role="3ElVtu">
                               <node concept="37vLTw" id="3jMXg07pg6f" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3jMXg07pg6h" resolve="oldUnit" />
+                                <ref role="3cqZAo" node="79LXaAamL2Y" resolve="oldUnit" />
                               </node>
                               <node concept="iZEcu" id="38e9cZqGQ6M" role="2OqNvi" />
                             </node>
@@ -4103,9 +4103,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="3jMXg07pg6h" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL2Y" role="1bW2Oz">
                       <property role="TrG5h" value="oldUnit" />
-                      <node concept="2jxLKc" id="3jMXg07pg6i" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL2Z" role="1tU5fm" />
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                   </node>
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@@ -4934,15 +4934,15 @@
                       <node concept="3clFbF" id="3k7PGpWLBxM" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWLBxN" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWLBxO" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWLBxQ" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL30" resolve="it" />
                           </node>
                           <node concept="1$rogu" id="3k7PGpWLBxP" role="2OqNvi" />
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-                    <node concept="Rh6nW" id="3k7PGpWLBxQ" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL30" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3k7PGpWLBxR" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL31" role="1tU5fm" />
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@@ -5178,15 +5178,15 @@
                       <node concept="3clFbF" id="3k7PGpWMcgu" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWMcgv" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWMcgw" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWMcgy" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL32" resolve="it" />
                           </node>
                           <node concept="1$rogu" id="3k7PGpWMcgx" role="2OqNvi" />
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-                    <node concept="Rh6nW" id="3k7PGpWMcgy" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL32" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3k7PGpWMcgz" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL33" role="1tU5fm" />
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@@ -5587,15 +5587,15 @@
                       <node concept="3clFbF" id="3k7PGpWMCpP" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWMCpQ" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWMCpR" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWMCpT" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL34" resolve="it" />
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                           <node concept="1$rogu" id="3k7PGpWMCpS" role="2OqNvi" />
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-                    <node concept="Rh6nW" id="3k7PGpWMCpT" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL34" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3k7PGpWMCpU" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL35" role="1tU5fm" />
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@@ -5785,15 +5785,15 @@
                       <node concept="3clFbF" id="3k7PGpWN5eM" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWN5eN" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWN5eO" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWN5eQ" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL36" resolve="it" />
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                           <node concept="1$rogu" id="3k7PGpWN5eP" role="2OqNvi" />
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-                    <node concept="Rh6nW" id="3k7PGpWN5eQ" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL36" role="1bW2Oz">
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-                      <node concept="2jxLKc" id="3k7PGpWN5eR" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL37" role="1tU5fm" />
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@@ -6240,15 +6240,15 @@
                       <node concept="3clFbF" id="3k7PGpWNuUf" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWNuUg" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWNuUh" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWNuUj" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL38" resolve="it" />
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                           <node concept="1$rogu" id="3k7PGpWNuUi" role="2OqNvi" />
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-                    <node concept="Rh6nW" id="3k7PGpWNuUj" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL38" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3k7PGpWNuUk" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL39" role="1tU5fm" />
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@@ -6557,15 +6557,15 @@
                       <node concept="3clFbF" id="3k7PGpWNZKF" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWNZKG" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWNZKH" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWNZKJ" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL3a" resolve="it" />
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                           <node concept="1$rogu" id="3k7PGpWNZKI" role="2OqNvi" />
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-                    <node concept="Rh6nW" id="3k7PGpWNZKJ" role="1bW2Oz">
+                    <node concept="gl6BB" id="79LXaAamL3a" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="3k7PGpWNZKK" role="1tU5fm" />
+                      <node concept="2jxLKc" id="79LXaAamL3b" role="1tU5fm" />
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@@ -7154,7 +7154,7 @@
                                       <node concept="36biLy" id="4ElwYTjaR90" role="28nt2d">
                                         <node concept="2OqwBi" id="4ElwYTjaR91" role="36biLW">
                                           <node concept="37vLTw" id="4ElwYTjaR92" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="4ElwYTjaR9k" resolve="it" />
+                                            <ref role="3cqZAo" node="79LXaAamL3e" resolve="it" />
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                                           <node concept="3TrEf2" id="4ElwYTjaR93" role="2OqNvi">
                                             <ref role="3Tt5mk" to="b0gq:1wGuEUvVzW5" resolve="expression" />
@@ -7167,7 +7167,7 @@
                                       <node concept="36biLy" id="4ElwYTjaR95" role="28nt2d">
                                         <node concept="2OqwBi" id="4ElwYTjaR96" role="36biLW">
                                           <node concept="37vLTw" id="4ElwYTjaR97" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="4ElwYTjaR9k" resolve="it" />
+                                            <ref role="3cqZAo" node="79LXaAamL3e" resolve="it" />
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                                           <node concept="3TrEf2" id="4ElwYTjaR98" role="2OqNvi">
                                             <ref role="3Tt5mk" to="b0gq:1wGuEUwcwId" resolve="type" />
@@ -7193,7 +7193,7 @@
                                   <node concept="2OqwBi" id="3k7PGpW_P6V" role="25WWJ7">
                                     <node concept="2OqwBi" id="4ElwYTjaR9f" role="2Oq$k0">
                                       <node concept="37vLTw" id="4ElwYTjaR9g" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="4ElwYTjaR9k" resolve="it" />
+                                        <ref role="3cqZAo" node="79LXaAamL3e" resolve="it" />
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                                       <node concept="3Tsc0h" id="4ElwYTjaR9h" role="2OqNvi">
                                         <ref role="3TtcxE" to="tpck:4uZwTti3__2" resolve="smodelAttribute" />
@@ -7205,15 +7205,15 @@
                                           <node concept="3clFbF" id="3k7PGpWAxpo" role="3cqZAp">
                                             <node concept="2OqwBi" id="3k7PGpWAJw1" role="3clFbG">
                                               <node concept="37vLTw" id="3k7PGpWAxpn" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="3k7PGpWAegr" resolve="it" />
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                                               <node concept="1$rogu" id="3k7PGpWB4F7" role="2OqNvi" />
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-                                        <node concept="Rh6nW" id="3k7PGpWAegr" role="1bW2Oz">
+                                        <node concept="gl6BB" id="79LXaAamL3c" role="1bW2Oz">
                                           <property role="TrG5h" value="it" />
-                                          <node concept="2jxLKc" id="3k7PGpWAegs" role="1tU5fm" />
+                                          <node concept="2jxLKc" id="79LXaAamL3d" role="1tU5fm" />
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@@ -7227,9 +7227,9 @@
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-                          <node concept="Rh6nW" id="4ElwYTjaR9k" role="1bW2Oz">
+                          <node concept="gl6BB" id="79LXaAamL3e" role="1bW2Oz">
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+                            <node concept="2jxLKc" id="79LXaAamL3f" role="1tU5fm" />
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@@ -7266,15 +7266,15 @@
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                         <node concept="2OqwBi" id="3k7PGpWCbUF" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWBXm3" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWBHZz" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL3g" resolve="it" />
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@@ -7426,15 +7426,15 @@
                           <node concept="3clFbF" id="3k7PGpWDoZr" role="3cqZAp">
                             <node concept="2OqwBi" id="3k7PGpWDzxt" role="3clFbG">
                               <node concept="37vLTw" id="3k7PGpWDoZq" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3k7PGpWDa06" resolve="it" />
+                                <ref role="3cqZAo" node="79LXaAamL3i" resolve="it" />
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-                        <node concept="Rh6nW" id="3k7PGpWDa06" role="1bW2Oz">
+                        <node concept="gl6BB" id="79LXaAamL3i" role="1bW2Oz">
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+                          <node concept="2jxLKc" id="79LXaAamL3j" role="1tU5fm" />
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@@ -7568,15 +7568,15 @@
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                         <node concept="2OqwBi" id="3k7PGpWEXeT" role="3clFbG">
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-                            <ref role="3cqZAo" node="3k7PGpWEoRi" resolve="it" />
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@@ -7891,15 +7891,15 @@
                           <node concept="3clFbF" id="3k7PGpWFZ5E" role="3cqZAp">
                             <node concept="2OqwBi" id="3k7PGpWGdmS" role="3clFbG">
                               <node concept="37vLTw" id="3k7PGpWFZ5D" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3k7PGpWFMM0" resolve="it" />
+                                <ref role="3cqZAo" node="79LXaAamL3m" resolve="it" />
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                               <node concept="1$rogu" id="3k7PGpWGump" role="2OqNvi" />
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-                        <node concept="Rh6nW" id="3k7PGpWFMM0" role="1bW2Oz">
+                        <node concept="gl6BB" id="79LXaAamL3m" role="1bW2Oz">
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-                          <node concept="2jxLKc" id="3k7PGpWFMM1" role="1tU5fm" />
+                          <node concept="2jxLKc" id="79LXaAamL3n" role="1tU5fm" />
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@@ -8153,15 +8153,15 @@
                       <node concept="3clFbF" id="3k7PGpWHigK" role="3cqZAp">
                         <node concept="2OqwBi" id="3k7PGpWHtzb" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWHigJ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWH6Zs" resolve="it" />
+                            <ref role="3cqZAo" node="79LXaAamL3o" resolve="it" />
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@@ -8384,15 +8384,15 @@
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                         <node concept="2OqwBi" id="3k7PGpWIJgh" role="3clFbG">
                           <node concept="37vLTw" id="3k7PGpWIvsX" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3k7PGpWIeGM" resolve="it" />
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@@ -8491,15 +8491,15 @@
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                         <node concept="2OqwBi" id="3k7PGpWK1LG" role="3clFbG">
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-                            <ref role="3cqZAo" node="3k7PGpWJBPc" resolve="it" />
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@@ -8600,15 +8600,15 @@
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                         <node concept="2OqwBi" id="3k7PGpWKJ4X" role="3clFbG">
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-                            <ref role="3cqZAo" node="3k7PGpWKJ50" resolve="it" />
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@@ -8721,15 +8721,15 @@
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@@ -8919,7 +8919,7 @@
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                           <node concept="37vLTw" id="38e9cZqxmTw" role="2Oq$k0">
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@@ -8968,9 +8968,9 @@
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@@ -8993,7 +8993,7 @@
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@@ -9045,9 +9045,9 @@
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@@ -9069,7 +9069,7 @@
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                       <node concept="2OqwBi" id="1nMzDp7qXtB" role="33vP2m">
                         <node concept="37vLTw" id="1nMzDp7qXtC" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2hjX6q6_yHi" resolve="it" />
+                          <ref role="3cqZAo" node="79LXaAamL3A" resolve="it" />
                         </node>
                         <node concept="3AY5_j" id="1nMzDp7qXtD" role="2OqNvi" />
                       </node>
@@ -9112,9 +9112,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2hjX6q6_yHi" role="1bW2Oz">
+                <node concept="gl6BB" id="79LXaAamL3A" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2hjX6q6_yHj" role="1tU5fm" />
+                  <node concept="2jxLKc" id="79LXaAamL3B" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10318,7 +10318,7 @@
                           <node concept="2OqwBi" id="2qDVhi7xqjT" role="37wK5m">
                             <node concept="2OqwBi" id="2qDVhi7xp5t" role="2Oq$k0">
                               <node concept="37vLTw" id="2qDVhi7xoPQ" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2qDVhi7xoCd" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1b3uB" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="2qDVhi7xpwA" role="2OqNvi">
                                 <ref role="3Tt5mk" to="tp25:1Bs_61$ngwB" resolve="modelRef" />
@@ -10332,9 +10332,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2qDVhi7xoCd" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3uB" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2qDVhi7xoCe" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3uC" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10345,7 +10345,7 @@
                   <node concept="3clFbF" id="2qDVhi7xsSp" role="3cqZAp">
                     <node concept="2OqwBi" id="2qDVhi7xxD1" role="3clFbG">
                       <node concept="37vLTw" id="2qDVhi7xxoF" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2qDVhi7xsGp" resolve="it" />
+                        <ref role="3cqZAo" node="2FZhxW1b3uD" resolve="it" />
                       </node>
                       <node concept="1P9Npp" id="2qDVhi7xxQK" role="2OqNvi">
                         <node concept="2c44tf" id="2qDVhi7xyKB" role="1P9ThW">
@@ -10362,9 +10362,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2qDVhi7xsGp" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3uD" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2qDVhi7xsGq" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3uE" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10396,7 +10396,7 @@
                             <node concept="2OqwBi" id="2qDVhi7XGkO" role="2Oq$k0">
                               <node concept="2OqwBi" id="2qDVhi7XGkP" role="2Oq$k0">
                                 <node concept="37vLTw" id="2qDVhi7XGkQ" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2qDVhi7IS4Q" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3uF" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="2qDVhi7XGkR" role="2OqNvi">
                                   <ref role="3Tt5mk" to="tp25:2iMJRNxweHl" resolve="conceptDeclaration" />
@@ -10410,9 +10410,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2qDVhi7IS4Q" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3uF" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2qDVhi7IS4R" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3uG" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10424,7 +10424,7 @@
                     <node concept="37vLTI" id="2qDVhi7Kcl9" role="3clFbG">
                       <node concept="2OqwBi" id="2qDVhi7J0He" role="37vLTJ">
                         <node concept="37vLTw" id="2qDVhi7J0px" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2qDVhi7IWC6" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uH" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="2qDVhi7J1hQ" role="2OqNvi">
                           <ref role="3Tt5mk" to="tp25:2iMJRNxweHl" resolve="conceptDeclaration" />
@@ -10438,7 +10438,7 @@
                           <ref role="37wK5l" node="2qDVhi7I1E$" resolve="getNewConcept" />
                           <node concept="2OqwBi" id="2qDVhi86Lnr" role="37wK5m">
                             <node concept="37vLTw" id="2qDVhi86Lns" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2qDVhi7IWC6" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3uH" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="2qDVhi86Lnt" role="2OqNvi">
                               <ref role="3Tt5mk" to="tp25:2iMJRNxweHl" resolve="conceptDeclaration" />
@@ -10456,15 +10456,15 @@
                       <node concept="liA8E" id="2qDVhi7Ma1g" role="2OqNvi">
                         <ref role="37wK5l" node="2qDVhi7NWiJ" resolve="addMissingDepencyToStructureModel" />
                         <node concept="37vLTw" id="2qDVhi7Ma9U" role="37wK5m">
-                          <ref role="3cqZAo" node="2qDVhi7IWC6" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uH" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2qDVhi7IWC6" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3uH" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2qDVhi7IWC7" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3uI" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10496,7 +10496,7 @@
                             <node concept="2OqwBi" id="2qDVhi7PGSl" role="2Oq$k0">
                               <node concept="2OqwBi" id="2qDVhi7PFZH" role="2Oq$k0">
                                 <node concept="37vLTw" id="2qDVhi7PFKR" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2qDVhi7PFrJ" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3uJ" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="2qDVhi7PGrb" role="2OqNvi">
                                   <ref role="3Tt5mk" to="tp25:h8cht0$" resolve="conceptDeclaration" />
@@ -10510,9 +10510,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2qDVhi7PFrJ" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3uJ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2qDVhi7PFrK" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3uK" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10524,7 +10524,7 @@
                     <node concept="37vLTI" id="2qDVhi7PJnp" role="3clFbG">
                       <node concept="2OqwBi" id="2qDVhi7PJny" role="37vLTJ">
                         <node concept="37vLTw" id="2qDVhi7PJnz" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2qDVhi7PJi7" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uL" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="2qDVhi7PJn$" role="2OqNvi">
                           <ref role="3Tt5mk" to="tp25:h8cht0$" resolve="conceptDeclaration" />
@@ -10538,7 +10538,7 @@
                           <ref role="37wK5l" node="2qDVhi7I1E$" resolve="getNewConcept" />
                           <node concept="2OqwBi" id="2qDVhi86LTo" role="37wK5m">
                             <node concept="37vLTw" id="2qDVhi86LTp" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2qDVhi7PJi7" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3uL" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="2qDVhi86LTq" role="2OqNvi">
                               <ref role="3Tt5mk" to="tp25:h8cht0$" resolve="conceptDeclaration" />
@@ -10556,15 +10556,15 @@
                       <node concept="liA8E" id="2qDVhi7PJnC" role="2OqNvi">
                         <ref role="37wK5l" node="2qDVhi7NWiJ" resolve="addMissingDepencyToStructureModel" />
                         <node concept="37vLTw" id="2qDVhi7PJnD" role="37wK5m">
-                          <ref role="3cqZAo" node="2qDVhi7PJi7" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uL" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2qDVhi7PJi7" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3uL" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2qDVhi7PJi8" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3uM" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10596,7 +10596,7 @@
                             <node concept="2OqwBi" id="2qDVhi7QoSg" role="2Oq$k0">
                               <node concept="2OqwBi" id="2qDVhi7Qncw" role="2Oq$k0">
                                 <node concept="37vLTw" id="2qDVhi7QmUz" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2qDVhi7QmDz" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3uN" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="2qDVhi7QnGO" role="2OqNvi">
                                   <ref role="3Tt5mk" to="tp25:g$ehGDh" resolve="concept" />
@@ -10610,9 +10610,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2qDVhi7QmDz" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3uN" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2qDVhi7QmD$" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3uO" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10624,7 +10624,7 @@
                     <node concept="37vLTI" id="2qDVhi7QrvW" role="3clFbG">
                       <node concept="2OqwBi" id="2qDVhi7Qrw5" role="37vLTJ">
                         <node concept="37vLTw" id="2qDVhi7Qrw6" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2qDVhi7Qrod" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uP" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="2qDVhi7Qrw7" role="2OqNvi">
                           <ref role="3Tt5mk" to="tp25:g$ehGDh" resolve="concept" />
@@ -10638,7 +10638,7 @@
                           <ref role="37wK5l" node="2qDVhi7I1E$" resolve="getNewConcept" />
                           <node concept="2OqwBi" id="2qDVhi86MFc" role="37wK5m">
                             <node concept="37vLTw" id="2qDVhi86MFd" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2qDVhi7Qrod" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3uP" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="2qDVhi86MFe" role="2OqNvi">
                               <ref role="3Tt5mk" to="tp25:g$ehGDh" resolve="concept" />
@@ -10656,15 +10656,15 @@
                       <node concept="liA8E" id="2qDVhi7Qrwb" role="2OqNvi">
                         <ref role="37wK5l" node="2qDVhi7NWiJ" resolve="addMissingDepencyToStructureModel" />
                         <node concept="37vLTw" id="2qDVhi7Qrwc" role="37wK5m">
-                          <ref role="3cqZAo" node="2qDVhi7Qrod" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uP" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2qDVhi7Qrod" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3uP" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2qDVhi7Qroe" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3uQ" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10688,7 +10688,7 @@
                     <node concept="2OqwBi" id="2qDVhi80zbL" role="3clFbG">
                       <node concept="2OqwBi" id="2qDVhi80zbM" role="2Oq$k0">
                         <node concept="37vLTw" id="2qDVhi80zbN" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2qDVhi80zc3" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uT" resolve="it" />
                         </node>
                         <node concept="3Tsc0h" id="2qDVhi80zbO" role="2OqNvi">
                           <ref role="3TtcxE" to="tpce:6_fwX53_MKe" resolve="attributed" />
@@ -10705,7 +10705,7 @@
                                   <node concept="2OqwBi" id="2qDVhi80D$G" role="2Oq$k0">
                                     <node concept="2OqwBi" id="2qDVhi80D$H" role="2Oq$k0">
                                       <node concept="37vLTw" id="2qDVhi80D$I" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="2qDVhi80$p0" resolve="it" />
+                                        <ref role="3cqZAo" node="2FZhxW1b3uR" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="2qDVhi80D$J" role="2OqNvi">
                                         <ref role="3Tt5mk" to="tpce:5g5Zgd9qGMp" resolve="concept" />
@@ -10729,7 +10729,7 @@
                                         <ref role="37wK5l" node="2qDVhi7I1E$" resolve="getNewConcept" />
                                         <node concept="2OqwBi" id="2qDVhi86OHP" role="37wK5m">
                                           <node concept="37vLTw" id="2qDVhi86OsL" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="2qDVhi80$p0" resolve="it" />
+                                            <ref role="3cqZAo" node="2FZhxW1b3uR" resolve="it" />
                                           </node>
                                           <node concept="3TrEf2" id="2qDVhi86Pjr" role="2OqNvi">
                                             <ref role="3Tt5mk" to="tpce:5g5Zgd9qGMp" resolve="concept" />
@@ -10739,7 +10739,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="2qDVhi80_EE" role="37vLTJ">
                                       <node concept="37vLTw" id="2qDVhi80_m2" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="2qDVhi80$p0" resolve="it" />
+                                        <ref role="3cqZAo" node="2FZhxW1b3uR" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="2qDVhi80Bya" role="2OqNvi">
                                         <ref role="3Tt5mk" to="tpce:5g5Zgd9qGMp" resolve="concept" />
@@ -10761,18 +10761,18 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="2qDVhi80$p0" role="1bW2Oz">
+                          <node concept="gl6BB" id="2FZhxW1b3uR" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="2qDVhi80$p1" role="1tU5fm" />
+                            <node concept="2jxLKc" id="2FZhxW1b3uS" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2qDVhi80zc3" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3uT" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2qDVhi80zc4" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3uU" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10804,7 +10804,7 @@
                             <node concept="2OqwBi" id="5dNVOCF7iDZ" role="2Oq$k0">
                               <node concept="2OqwBi" id="5dNVOCF7hFc" role="2Oq$k0">
                                 <node concept="37vLTw" id="5dNVOCF7hoI" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5dNVOCF7hbo" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3uV" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="5dNVOCF7icR" role="2OqNvi">
                                   <ref role="3Tt5mk" to="tpf8:h03gUQu" resolve="applicableConcept" />
@@ -10818,9 +10818,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5dNVOCF7hbo" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3uV" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5dNVOCF7hbp" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3uW" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10838,7 +10838,7 @@
                           <ref role="37wK5l" node="2qDVhi7I1E$" resolve="getNewConcept" />
                           <node concept="2OqwBi" id="5dNVOCF7Vrm" role="37wK5m">
                             <node concept="37vLTw" id="5dNVOCF7Vrn" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5dNVOCF7kY9" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3uX" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="5dNVOCF7Vro" role="2OqNvi">
                               <ref role="3Tt5mk" to="tpf8:h03gUQu" resolve="applicableConcept" />
@@ -10848,7 +10848,7 @@
                       </node>
                       <node concept="2OqwBi" id="5dNVOCF7lNP" role="37vLTJ">
                         <node concept="37vLTw" id="5dNVOCF7lxU" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5dNVOCF7kY9" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3uX" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="5dNVOCF7nOh" role="2OqNvi">
                           <ref role="3Tt5mk" to="tpf8:h03gUQu" resolve="applicableConcept" />
@@ -10857,9 +10857,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5dNVOCF7kY9" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3uX" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5dNVOCF7kYa" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3uY" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -10891,7 +10891,7 @@
                             <node concept="2OqwBi" id="1FkCRmRWM9W" role="2Oq$k0">
                               <node concept="2OqwBi" id="1FkCRmRWLeQ" role="2Oq$k0">
                                 <node concept="37vLTw" id="1FkCRmRWKV2" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1FkCRmRWFgD" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3uZ" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="1FkCRmRWLGw" role="2OqNvi">
                                   <ref role="3Tt5mk" to="vs0r:DubiFAXDKB" resolve="chunk" />
@@ -10905,9 +10905,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1FkCRmRWFgD" role="1bW2Oz">
+                  <node concept="gl6BB" id="2FZhxW1b3uZ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="1FkCRmRWFgE" role="1tU5fm" />
+                    <node concept="2jxLKc" id="2FZhxW1b3v0" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -10919,7 +10919,7 @@
                     <node concept="37vLTI" id="1FkCRmRWP8o" role="3clFbG">
                       <node concept="2OqwBi" id="1FkCRmRWO$B" role="37vLTJ">
                         <node concept="37vLTw" id="1FkCRmRWOue" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1FkCRmRWOhO" resolve="it" />
+                          <ref role="3cqZAo" node="2FZhxW1b3v1" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="1FkCRmRWOOL" role="2OqNvi">
                           <ref role="3Tt5mk" to="vs0r:DubiFAXDKB" resolve="chunk" />
@@ -10940,9 +10940,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1FkCRmRWOhO" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1b3v1" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1FkCRmRWOhP" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1b3v2" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -11050,7 +11050,7 @@
                             <node concept="3clFbF" id="4ElwYTiL3dN" role="3cqZAp">
                               <node concept="2OqwBi" id="4ElwYTiL59b" role="3clFbG">
                                 <node concept="37vLTw" id="4ElwYTiL3dM" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4ElwYTiL1KA" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3vR" resolve="it" />
                                 </node>
                                 <node concept="AQDAd" id="4ElwYTiL7u_" role="2OqNvi">
                                   <ref role="37wK5l" node="4ElwYTiIGKX" resolve="toOldConversionSpecifier" />
@@ -11058,9 +11058,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="4ElwYTiL1KA" role="1bW2Oz">
+                          <node concept="gl6BB" id="2FZhxW1b3vR" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="4ElwYTiL1KB" role="1tU5fm" />
+                            <node concept="2jxLKc" id="2FZhxW1b3vS" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -12269,7 +12269,7 @@
                               <ref role="cht4Q" to="i3ya:7eOyx9r3kR5" resolve="UnitReference" />
                             </node>
                             <node concept="37vLTw" id="4ElwYTiVmyw" role="1m5AlR">
-                              <ref role="3cqZAo" node="4ElwYTiVlD0" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3vT" resolve="it" />
                             </node>
                           </node>
                           <node concept="AQDAd" id="4ElwYTiVpUh" role="2OqNvi">
@@ -12278,9 +12278,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4ElwYTiVlD0" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1b3vT" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4ElwYTiVlD1" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1b3vU" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/structure.mps
index d760c0b4fc..0619f261e3 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/structure.mps
@@ -58,7 +58,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -152,9 +152,6 @@
     <node concept="PrWs8" id="4CUqBF4xMRo" role="PzmwI">
       <ref role="PrY4T" to="vs0r:1rXJcsmD0fG" resolve="IRequiresConfigItem" />
     </node>
-    <node concept="PrWs8" id="1th9LVE9Up9" role="PzmwI">
-      <ref role="PrY4T" to="tpck:2WmWrdnSpX2" resolve="ICanSuppressErrors" />
-    </node>
     <node concept="1TJgyj" id="7eOyx9r3qFY" role="1TKVEi">
       <property role="20lmBu" value="fLJjDmT/aggregation" />
       <property role="20kJfa" value="exponent" />
@@ -170,6 +167,9 @@
     <node concept="RPilO" id="7cBI1LfYpmP" role="lGtFl">
       <ref role="RPilL" node="7eOyx9r3qFW" resolve="unit" />
     </node>
+    <node concept="PrWs8" id="1th9LVE9Up9" role="PzmwI">
+      <ref role="PrY4T" to="tpck:2WmWrdnSpX2" resolve="ICanSuppressErrors" />
+    </node>
   </node>
   <node concept="1TIwiD" id="3j3yk3guAAl">
     <property role="3GE5qa" value="definition.exponent" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/typesystem.mps
index 9318ad18be..1f83ee6b56 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/models/typesystem.mps
@@ -2,7 +2,7 @@
 <model ref="r:bf3cd5a0-eefc-4fd9-b3a6-b57643c9d80c(org.iets3.core.expr.typetags.units.typesystem)">
   <persistence version="9" />
   <languages>
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -60,7 +60,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -153,7 +153,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -177,7 +177,7 @@
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -207,6 +207,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -413,7 +414,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -453,7 +454,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
@@ -927,13 +927,13 @@
                     <property role="Xl_RC" value="The specifier's type is already covered" />
                   </node>
                   <node concept="37vLTw" id="1wGuEUwrs0w" role="1urrMF">
-                    <ref role="3cqZAo" node="1wGuEUwrqnn" resolve="it" />
+                    <ref role="3cqZAo" node="4z0AnX817iW" resolve="it" />
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="1wGuEUwrqnn" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817iW" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="1wGuEUwrqno" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817iX" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -1119,7 +1119,7 @@
                                   <node concept="3y3z36" id="6FK1Pb8udWl" role="3uHU7B">
                                     <node concept="2OqwBi" id="6FK1Pb8udWm" role="3uHU7B">
                                       <node concept="37vLTw" id="6FK1Pb8udWn" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="6FK1Pb8uaUA" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817iY" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="5Q6EZP5PnyX" role="2OqNvi">
                                         <ref role="3Tt5mk" to="b0gq:7eOyx9r3qFY" resolve="exponent" />
@@ -1134,7 +1134,7 @@
                                     <node concept="2OqwBi" id="6FK1Pb8udWg" role="3uHU7B">
                                       <node concept="2OqwBi" id="6FK1Pb8udWh" role="2Oq$k0">
                                         <node concept="37vLTw" id="6FK1Pb8udWi" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6FK1Pb8uaUA" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817iY" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="5Q6EZP5PlXD" role="2OqNvi">
                                           <ref role="3Tt5mk" to="b0gq:7eOyx9r3qFY" resolve="exponent" />
@@ -1148,9 +1148,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="6FK1Pb8uaUA" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817iY" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="6FK1Pb8uaUB" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817iZ" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2784,15 +2784,15 @@
                         <node concept="3clFbF" id="77FPJvcTsNH" role="3cqZAp">
                           <node concept="2OqwBi" id="77FPJvcTv70" role="3clFbG">
                             <node concept="37vLTw" id="77FPJvcTsNG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="77FPJvcTsaj" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817j0" resolve="it" />
                             </node>
                             <node concept="1$rogu" id="77FPJvcTvAz" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="77FPJvcTsaj" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817j0" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="77FPJvcTsak" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817j1" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -4569,7 +4569,7 @@
                       <node concept="3clFbF" id="77FPJvcIdAw" role="3cqZAp">
                         <node concept="2OqwBi" id="77FPJvcIdAx" role="3clFbG">
                           <node concept="37vLTw" id="77FPJvcIdAy" role="2Oq$k0">
-                            <ref role="3cqZAo" node="77FPJvcIdAU" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817j2" resolve="it" />
                           </node>
                           <node concept="1P9Npp" id="77FPJvcIdAz" role="2OqNvi">
                             <node concept="37vLTw" id="77FPJvcIdA$" role="1P9ThW">
@@ -4592,7 +4592,7 @@
                         <node concept="3clFbF" id="77FPJvcIdAN" role="3cqZAp">
                           <node concept="2OqwBi" id="77FPJvcIdAO" role="3clFbG">
                             <node concept="37vLTw" id="77FPJvcIdAP" role="2Oq$k0">
-                              <ref role="3cqZAo" node="77FPJvcIdAU" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817j2" resolve="it" />
                             </node>
                             <node concept="1P9Npp" id="77FPJvcIdAQ" role="2OqNvi">
                               <node concept="2OqwBi" id="77FPJvcIdAR" role="1P9ThW">
@@ -4608,9 +4608,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="77FPJvcIdAU" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817j2" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="77FPJvcIdAV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817j3" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4960,7 +4960,7 @@
                       <node concept="3clFbF" id="4CJErGj9uEg" role="3cqZAp">
                         <node concept="2OqwBi" id="4CJErGj9uEh" role="3clFbG">
                           <node concept="37vLTw" id="4CJErGj9uEi" role="2Oq$k0">
-                            <ref role="3cqZAo" node="4CJErGj9uEl" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817j4" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="4CJErGj9uEj" role="2OqNvi">
                             <node concept="chp4Y" id="4CJErGj9uEk" role="cj9EA">
@@ -4970,9 +4970,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4CJErGj9uEl" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817j4" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4CJErGj9uEm" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817j5" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -4986,14 +4986,14 @@
                           <ref role="cht4Q" to="b0gq:7eOyx9r3k4t" resolve="UnitSpecification" />
                         </node>
                         <node concept="37vLTw" id="4CJErGj9uEt" role="1m5AlR">
-                          <ref role="3cqZAo" node="4CJErGj9uEu" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817j6" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="4CJErGj9uEu" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817j6" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="4CJErGj9uEv" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817j7" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -5036,7 +5036,7 @@
                     <node concept="2OqwBi" id="4CJErGj9uEL" role="3clFbG">
                       <node concept="2OqwBi" id="4CJErGj9uEM" role="2Oq$k0">
                         <node concept="37vLTw" id="4CJErGj9uEN" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4CJErGj9uEY" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ja" resolve="it" />
                         </node>
                         <node concept="3Tsc0h" id="4CJErGj9uEO" role="2OqNvi">
                           <ref role="3TtcxE" to="b0gq:7eOyx9r3qG3" resolve="components" />
@@ -5053,7 +5053,7 @@
                                 </node>
                                 <node concept="2OqwBi" id="4CJErGj9uET" role="1m5AlR">
                                   <node concept="37vLTw" id="4CJErGj9uEU" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="4CJErGj9uEW" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817j8" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="4CJErGj9uEV" role="2OqNvi">
                                     <ref role="3Tt5mk" to="b0gq:7eOyx9r3qFW" resolve="unit" />
@@ -5062,18 +5062,18 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="4CJErGj9uEW" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817j8" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="4CJErGj9uEX" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817j9" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4CJErGj9uEY" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ja" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4CJErGj9uEZ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jb" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/org.iets3.core.expr.typetags.units.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/org.iets3.core.expr.typetags.units.mpl
index bff5677543..352e4d8b9f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/org.iets3.core.expr.typetags.units.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags.units/org.iets3.core.expr.typetags.units.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
     <dependency reexport="false">6fadc44e-69c2-4a4a-9d16-7ebf5f8d3ba0(org.iets3.core.expr.math)</dependency>
@@ -47,7 +46,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:5dc5fc0d-37ef-4782-8192-8b5ce1f69f80:jetbrains.mps.baseLanguage.extensionMethods" version="0" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
@@ -78,7 +77,7 @@
     <language slang="l:90746344-04fd-4286-97d5-b46ae6a81709:jetbrains.mps.lang.migration" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/generator/template/main@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/generator/template/main@generator.mps
index 35d3e4231e..4679c01ee2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/generator/template/main@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/generator/template/main@generator.mps
@@ -58,7 +58,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/behavior.mps
index 4e23f971f0..72ad092ba8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/behavior.mps
@@ -7,7 +7,7 @@
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="2" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
@@ -162,7 +162,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -186,7 +186,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -202,6 +202,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -297,7 +298,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -332,7 +333,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
@@ -757,7 +757,7 @@
                         <node concept="3clFbF" id="4HxogODR9T7" role="3cqZAp">
                           <node concept="2OqwBi" id="4HxogODR9Xl" role="3clFbG">
                             <node concept="37vLTw" id="4HxogODR9T6" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4HxogODR9Ol" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817jG" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="4HxogODRa6r" role="2OqNvi">
                               <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -765,9 +765,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="4HxogODR9Ol" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817jG" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="4HxogODR9Om" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817jH" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1022,15 +1022,15 @@
                             <node concept="2qgKlT" id="y1JIvsa_1r" role="2OqNvi">
                               <ref role="37wK5l" node="4HxogODPWaJ" resolve="isSameAs" />
                               <node concept="37vLTw" id="y1JIvsa_1s" role="37wK5m">
-                                <ref role="3cqZAo" node="y1JIvsa_1t" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1b3$0" resolve="it" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="y1JIvsa_1t" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1b3$0" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="y1JIvsa_1u" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1b3$1" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -1582,6 +1582,9 @@
         </node>
       </node>
     </node>
+    <node concept="13hLZK" id="4HxogODTmV_" role="13h7CW">
+      <node concept="3clFbS" id="4HxogODTmVA" role="2VODD2" />
+    </node>
     <node concept="13i0hz" id="3wrpJuuH6pN" role="13h7CS">
       <property role="13i0it" value="true" />
       <property role="TrG5h" value="requireBraces" />
@@ -1593,9 +1596,6 @@
         </node>
       </node>
     </node>
-    <node concept="13hLZK" id="4HxogODTmV_" role="13h7CW">
-      <node concept="3clFbS" id="4HxogODTmVA" role="2VODD2" />
-    </node>
   </node>
   <node concept="13h7C7" id="1RcasK0UAiV">
     <property role="3GE5qa" value="modifier" />
@@ -2061,7 +2061,7 @@
                         <node concept="3clFbF" id="2Ux6GHgZEJU" role="3cqZAp">
                           <node concept="2OqwBi" id="2Ux6GHgZEJV" role="3clFbG">
                             <node concept="37vLTw" id="2Ux6GHgZEJW" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2Ux6GHgZEJY" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817jI" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="2Ux6GHgZEJX" role="2OqNvi">
                               <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -2069,9 +2069,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2Ux6GHgZEJY" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817jI" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2Ux6GHgZEJZ" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817jJ" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/constraints.mps
index 0ac8148ca5..9b35d38de2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/constraints.mps
@@ -37,7 +37,7 @@
       <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
         <child id="1068581517676" name="expression" index="3cqZAk" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/editor.mps
index 74b7f1d5ea..b8d5e591e6 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/editor.mps
@@ -76,15 +76,15 @@
       </concept>
       <concept id="1186414860679" name="jetbrains.mps.lang.editor.structure.EditableStyleClassItem" flags="ln" index="VPxyj" />
       <concept id="1186414949600" name="jetbrains.mps.lang.editor.structure.AutoDeletableStyleClassItem" flags="ln" index="VPRnO" />
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
       <concept id="1630016958697286851" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_parameterObject" flags="ng" index="2ZBlsa" />
-      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ng" index="2ZBHr6">
+      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ngI" index="2ZBHr6">
         <child id="1630016958697057552" name="parameterType" index="2ZBHrp" />
       </concept>
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
@@ -107,7 +107,7 @@
       </concept>
       <concept id="1139535439104" name="jetbrains.mps.lang.editor.structure.CellActionMap_ExecuteFunction" flags="in" index="1hAIg9" />
       <concept id="5692353713941573329" name="jetbrains.mps.lang.editor.structure.QueryFunction_TransformationMenu_ActionLabelText" flags="ig" index="1hCUdq" />
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
       <concept id="7580468736840446506" name="jetbrains.mps.lang.editor.structure.ConceptFunctionParameter_model" flags="nn" index="1rpKSd" />
@@ -127,14 +127,14 @@
       <concept id="1073389577006" name="jetbrains.mps.lang.editor.structure.CellModel_Constant" flags="sn" stub="3610246225209162225" index="3F0ifn">
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
       <concept id="1073390211982" name="jetbrains.mps.lang.editor.structure.CellModel_RefNodeList" flags="sg" stub="2794558372793454595" index="3F2HdR">
         <reference id="1173177718857" name="elementActionMap" index="APP_o" />
       </concept>
-      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ng" index="1FNN41">
+      <concept id="843003353410421268" name="jetbrains.mps.lang.editor.structure.IOutputConceptTransformationMenuPart" flags="ngI" index="1FNN41">
         <child id="843003353410424960" name="outputConceptReference" index="1FNMel" />
       </concept>
       <concept id="843003353410421233" name="jetbrains.mps.lang.editor.structure.OptionalConceptReference" flags="ng" index="1FNNb$">
@@ -145,7 +145,7 @@
         <child id="4233361609415240998" name="part" index="1GhOri" />
         <child id="4233361609415241000" name="parameterQuery" index="1GhOrs" />
       </concept>
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="5624877018228264944" name="jetbrains.mps.lang.editor.structure.TransformationMenuContribution" flags="ng" index="3INDKC">
@@ -239,7 +239,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -254,6 +254,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -343,7 +344,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -369,7 +370,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -682,7 +682,7 @@
                             <node concept="2OqwBi" id="5dNVOCG2Sb4" role="3clFbG">
                               <node concept="2OqwBi" id="5dNVOCG2R_j" role="2Oq$k0">
                                 <node concept="37vLTw" id="5dNVOCG2RnU" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5dNVOCG2Rhd" resolve="it" />
+                                  <ref role="3cqZAo" node="2FZhxW1b3$2" resolve="it" />
                                 </node>
                                 <node concept="2yIwOk" id="5dNVOCG2RQm" role="2OqNvi" />
                               </node>
@@ -692,9 +692,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="5dNVOCG2Rhd" role="1bW2Oz">
+                        <node concept="gl6BB" id="2FZhxW1b3$2" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="5dNVOCG2Rhe" role="1tU5fm" />
+                          <node concept="2jxLKc" id="2FZhxW1b3$3" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -743,7 +743,6 @@
   <node concept="24kQdi" id="2Ux6GHgZDR6">
     <ref role="1XX52x" to="w1hl:2Ux6GHgZDQF" resolve="TaggedExpression" />
     <node concept="3EZMnI" id="Fhq44ej0LB" role="2wV5jI">
-      <node concept="2iRfu4" id="Fhq44ej0LC" role="2iSdaV" />
       <node concept="3EZMnI" id="7eOyx9r3D2r" role="3EZMnx">
         <node concept="3F0ifn" id="3wrpJuuGygQ" role="3EZMnx">
           <property role="3F0ifm" value="[" />
@@ -766,7 +765,7 @@
                         <node concept="3clFbF" id="3wrpJuuHbuB" role="3cqZAp">
                           <node concept="2OqwBi" id="3wrpJuuHbFL" role="3clFbG">
                             <node concept="37vLTw" id="3wrpJuuHbuA" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3wrpJuuHbu1" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3$4" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="3wrpJuuHc1m" role="2OqNvi">
                               <ref role="37wK5l" to="qlm2:3wrpJuuH6pN" resolve="requireBraces" />
@@ -774,9 +773,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3wrpJuuHbu1" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1b3$4" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3wrpJuuHbu2" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1b3$5" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -809,7 +808,7 @@
                         <node concept="3clFbF" id="3wrpJuuHcdu" role="3cqZAp">
                           <node concept="2OqwBi" id="3wrpJuuHcdv" role="3clFbG">
                             <node concept="37vLTw" id="3wrpJuuHcdw" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3wrpJuuHcdy" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1b3$6" resolve="it" />
                             </node>
                             <node concept="2qgKlT" id="3wrpJuuHcdx" role="2OqNvi">
                               <ref role="37wK5l" to="qlm2:3wrpJuuH6pN" resolve="requireBraces" />
@@ -817,9 +816,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="3wrpJuuHcdy" role="1bW2Oz">
+                      <node concept="gl6BB" id="2FZhxW1b3$6" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="3wrpJuuHcdz" role="1tU5fm" />
+                        <node concept="2jxLKc" id="2FZhxW1b3$7" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -932,6 +931,7 @@
           <property role="VOm3f" value="true" />
         </node>
       </node>
+      <node concept="2iRfu4" id="Fhq44ej0LC" role="2iSdaV" />
     </node>
   </node>
   <node concept="3INDKC" id="3cUcim$6q3Z">
@@ -989,12 +989,12 @@
             </node>
             <node concept="3cpWs6" id="3cUcim$6q4O" role="3cqZAp">
               <node concept="1Wc70l" id="3cUcim$6q4P" role="3cqZAk">
-                <node concept="37vLTw" id="3cUcim$6q4R" role="3uHU7B">
-                  <ref role="3cqZAo" node="3cUcim$6q4e" resolve="c1" />
-                </node>
                 <node concept="37vLTw" id="3cUcim$6q4Q" role="3uHU7w">
                   <ref role="3cqZAo" node="3cUcim$6q4p" resolve="c2" />
                 </node>
+                <node concept="37vLTw" id="3cUcim$6q4R" role="3uHU7B">
+                  <ref role="3cqZAo" node="3cUcim$6q4e" resolve="c1" />
+                </node>
               </node>
             </node>
           </node>
@@ -1053,31 +1053,19 @@
                     <node concept="1bVj0M" id="76ZhK6Y0HRa" role="23t8la">
                       <node concept="3clFbS" id="76ZhK6Y0HRb" role="1bW5cS">
                         <node concept="3clFbF" id="76ZhK6Y0I6v" role="3cqZAp">
-                          <node concept="1Wc70l" id="42$mjgeIlD5" role="3clFbG">
-                            <node concept="2OqwBi" id="42$mjgeInc2" role="3uHU7w">
-                              <node concept="37vLTw" id="42$mjgeImN7" role="2Oq$k0">
-                                <ref role="3cqZAo" node="76ZhK6Y0HRc" resolve="it" />
-                              </node>
-                              <node concept="2qgKlT" id="42$mjgeIoDp" role="2OqNvi">
-                                <ref role="37wK5l" to="qlm2:42$mjgeIjbE" resolve="canSubstitute" />
-                                <node concept="7Obwk" id="42$mjgeIAqs" role="37wK5m" />
-                              </node>
+                          <node concept="2OqwBi" id="76ZhK6Y0IqU" role="3clFbG">
+                            <node concept="37vLTw" id="76ZhK6Y0I6u" role="2Oq$k0">
+                              <ref role="3cqZAo" node="4z0AnX817jK" resolve="it" />
                             </node>
-                            <node concept="2OqwBi" id="52qjO8IsL34" role="3uHU7B">
-                              <node concept="37vLTw" id="52qjO8IsKtT" role="2Oq$k0">
-                                <ref role="3cqZAo" node="76ZhK6Y0HRc" resolve="it" />
-                              </node>
-                              <node concept="2qgKlT" id="52qjO8IsM8r" role="2OqNvi">
-                                <ref role="37wK5l" to="qlm2:52qjO8Ir6jN" resolve="canTagExpression" />
-                                <node concept="7Obwk" id="52qjO8IsMt_" role="37wK5m" />
-                              </node>
+                            <node concept="2qgKlT" id="76ZhK6Y0J$O" role="2OqNvi">
+                              <ref role="37wK5l" to="qlm2:2Ux6GHgZEiG" resolve="canTagExpression" />
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="76ZhK6Y0HRc" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817jK" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="76ZhK6Y0HRd" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817jL" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/structure.mps
index e18f8a7143..4ee74b3374 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/structure.mps
@@ -44,7 +44,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/typesystem.mps
index bcfa26a485..593c6846a8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/models/org/iets3/core/expr/typetags/typesystem.mps
@@ -2,7 +2,7 @@
 <model ref="r:42a3bc53-29b1-44d6-9767-7c921cef7ba0(org.iets3.core.expr.typetags.typesystem)">
   <persistence version="9" />
   <languages>
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="2" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -40,7 +40,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -125,7 +125,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -145,7 +145,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -296,7 +296,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/org.iets3.core.expr.typetags.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/org.iets3.core.expr.typetags.mpl
index 1afe911872..d8205f42ad 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/org.iets3.core.expr.typetags.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.typetags/org.iets3.core.expr.typetags.mpl
@@ -34,7 +34,7 @@
         <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -94,7 +94,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
@@ -112,7 +111,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/behavior.mps
index e3c89d808c..0449d25b9c 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/behavior.mps
@@ -74,7 +74,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -155,7 +155,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -172,7 +172,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5497648299878491908" name="jetbrains.mps.baseLanguage.structure.BaseVariableReference" flags="nn" index="1M0zk4">
@@ -186,6 +186,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -324,7 +325,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -366,7 +367,6 @@
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
       <concept id="1235566831861" name="jetbrains.mps.baseLanguage.collections.structure.AllOperation" flags="nn" index="2HxqBE" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
@@ -497,7 +497,7 @@
                         </node>
                         <node concept="2OqwBi" id="6kR0qIbwYQB" role="3uHU7B">
                           <node concept="37vLTw" id="6kR0qIbwYMW" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6kR0qIbwYik" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817jN" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="6kR0qIbwYYo" role="2OqNvi">
                             <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -507,7 +507,7 @@
                       <node concept="3clFbC" id="6kR0qIbwYB$" role="3uHU7B">
                         <node concept="2OqwBi" id="6kR0qIbwYoL" role="3uHU7B">
                           <node concept="37vLTw" id="6kR0qIbwYlj" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6kR0qIbwYik" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817jN" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="6kR0qIbwYuJ" role="2OqNvi">
                             <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -520,9 +520,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="6kR0qIbwYik" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jN" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6kR0qIbwYil" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jO" role="1tU5fm" />
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               </node>
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@@ -745,7 +745,7 @@
                         <node concept="2OqwBi" id="29Y5P9UXY6D" role="3clFbG">
                           <node concept="2OqwBi" id="4bJfPIwJanO" role="2Oq$k0">
                             <node concept="37vLTw" id="4bJfPIwJanP" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4bJfPIwJanS" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817jP" resolve="it" />
                             </node>
                             <node concept="3Tsc0h" id="29Y5P9UXUqa" role="2OqNvi">
                               <ref role="3TtcxE" to="kfo3:3DYDRw0K4cg" resolve="expressions" />
@@ -755,9 +755,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="4bJfPIwJanS" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817jP" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="4bJfPIwJanT" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817jQ" role="1tU5fm" />
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@@ -778,7 +778,7 @@
                     <node concept="2OqwBi" id="29Y5P9UXOGa" role="3clFbG">
                       <node concept="2OqwBi" id="4bJfPIwJ7B0" role="2Oq$k0">
                         <node concept="37vLTw" id="4bJfPIwJ7B1" role="2Oq$k0">
-                          <ref role="3cqZAo" node="4bJfPIwJ7B4" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817jR" resolve="it" />
                         </node>
                         <node concept="3Tsc0h" id="29Y5P9UXPSa" role="2OqNvi">
                           <ref role="3TtcxE" to="kfo3:3DYDRw0K4cg" resolve="expressions" />
@@ -788,9 +788,9 @@
                     </node>
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-                <node concept="Rh6nW" id="4bJfPIwJ7B4" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jR" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4bJfPIwJ7B5" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jS" role="1tU5fm" />
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@@ -2403,7 +2403,7 @@
                   <node concept="3clFbF" id="22hm_0$bc4v" role="3cqZAp">
                     <node concept="2OqwBi" id="22hm_0$bc7I" role="3clFbG">
                       <node concept="37vLTw" id="22hm_0$bc4u" role="2Oq$k0">
-                        <ref role="3cqZAo" node="22hm_0$bc2E" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817jT" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="22hm_0$bcc8" role="2OqNvi">
                         <ref role="37wK5l" node="22hm_0$b7pE" resolve="isLeaf" />
@@ -2411,9 +2411,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="22hm_0$bc2E" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jT" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="22hm_0$bc2F" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jU" role="1tU5fm" />
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@@ -2943,7 +2943,7 @@
                   <node concept="3clFbF" id="4u1MGlrMpGh" role="3cqZAp">
                     <node concept="2OqwBi" id="4u1MGlrMq29" role="3clFbG">
                       <node concept="37vLTw" id="4u1MGlrMpLY" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4u1MGlrMp$L" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817jV" resolve="it" />
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                       <node concept="1mIQ4w" id="4u1MGlrMqm6" role="2OqNvi">
                         <node concept="chp4Y" id="4u1MGlrMqxO" role="cj9EA">
@@ -2953,9 +2953,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="4u1MGlrMp$L" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jV" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4u1MGlrMp$M" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jW" role="1tU5fm" />
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@@ -3004,7 +3004,7 @@
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                       <node concept="2OqwBi" id="38udS81rzW_" role="3uHU7B">
                         <node concept="37vLTw" id="38udS81rzIU" role="2Oq$k0">
-                          <ref role="3cqZAo" node="38udS81rzCH" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817jX" resolve="it" />
                         </node>
                         <node concept="3TrEf2" id="38udS81r$fI" role="2OqNvi">
                           <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -3013,9 +3013,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="38udS81rzCH" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jX" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="38udS81rzCI" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817jY" role="1tU5fm" />
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@@ -3052,7 +3052,7 @@
                   <node concept="3clFbF" id="38udS81rG63" role="3cqZAp">
                     <node concept="2OqwBi" id="38udS81rGmv" role="3clFbG">
                       <node concept="37vLTw" id="38udS81rG62" role="2Oq$k0">
-                        <ref role="3cqZAo" node="38udS81rFWR" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817jZ" resolve="it" />
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                       <node concept="3Tsc0h" id="38udS81rG_a" role="2OqNvi">
                         <ref role="3TtcxE" to="kfo3:8XWEtdYkjo" resolve="exprs" />
@@ -3060,9 +3060,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="38udS81rFWR" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817jZ" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="38udS81rFWS" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817k0" role="1tU5fm" />
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               </node>
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@@ -3222,11 +3222,11 @@
                               <node concept="3clFbF" id="42T9ieTOAUy" role="3cqZAp">
                                 <node concept="3clFbC" id="42T9ieTOBIq" role="3clFbG">
                                   <node concept="37vLTw" id="42T9ieTOCJW" role="3uHU7w">
-                                    <ref role="3cqZAo" node="42T9ieTOzgL" resolve="res" />
+                                    <ref role="3cqZAo" node="4z0AnX817k3" resolve="res" />
                                   </node>
                                   <node concept="2OqwBi" id="42T9ieTOB9N" role="3uHU7B">
                                     <node concept="37vLTw" id="42T9ieTOAUx" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="42T9ieTOAUl" resolve="content" />
+                                      <ref role="3cqZAo" node="4z0AnX817k1" resolve="content" />
                                     </node>
                                     <node concept="3TrEf2" id="42T9ieTOBsa" role="2OqNvi">
                                       <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -3235,18 +3235,18 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="42T9ieTOAUl" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817k1" role="1bW2Oz">
                               <property role="TrG5h" value="content" />
-                              <node concept="2jxLKc" id="42T9ieTOAUm" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817k2" role="1tU5fm" />
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                         </node>
                       </node>
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-                  <node concept="Rh6nW" id="42T9ieTOzgL" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817k3" role="1bW2Oz">
                     <property role="TrG5h" value="res" />
-                    <node concept="2jxLKc" id="42T9ieTOzgM" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817k4" role="1tU5fm" />
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@@ -3281,7 +3281,7 @@
                       <node concept="2OqwBi" id="8XWEteuTUL" role="2Oq$k0">
                         <node concept="2OqwBi" id="8XWEteuTUM" role="2Oq$k0">
                           <node concept="37vLTw" id="8XWEteuTUN" role="2Oq$k0">
-                            <ref role="3cqZAo" node="8XWEteuTUR" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817k5" resolve="it" />
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                           <node concept="3TrEf2" id="8XWEteuTUO" role="2OqNvi">
                             <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -3295,9 +3295,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="8XWEteuTUR" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817k5" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="8XWEteuTUS" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817k6" role="1tU5fm" />
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@@ -3329,7 +3329,7 @@
                     <node concept="3clFbF" id="2s2qa7R56uh" role="3cqZAp">
                       <node concept="2OqwBi" id="2s2qa7R56ui" role="3clFbG">
                         <node concept="37vLTw" id="2s2qa7R56uj" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2s2qa7R56ul" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817k7" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="2s2qa7R56uk" role="2OqNvi">
                           <ref role="37wK5l" node="LvU0bhwLPQ" resolve="createComparisonExpression" />
@@ -3337,9 +3337,9 @@
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-                  <node concept="Rh6nW" id="2s2qa7R56ul" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817k7" role="1bW2Oz">
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-                    <node concept="2jxLKc" id="2s2qa7R56um" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817k8" role="1tU5fm" />
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@@ -3369,7 +3369,7 @@
                       <node concept="2OqwBi" id="3V7UZBYHOo" role="3clFbG">
                         <node concept="2OqwBi" id="3V7UZBYFHq" role="2Oq$k0">
                           <node concept="37vLTw" id="3V7UZBYFxK" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3V7UZBYFro" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817k9" resolve="it" />
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                           <node concept="3Tsc0h" id="3V7UZBYFRV" role="2OqNvi">
                             <ref role="3TtcxE" to="kfo3:8XWEtdYkjo" resolve="exprs" />
@@ -3379,9 +3379,9 @@
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-                  <node concept="Rh6nW" id="3V7UZBYFro" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817k9" role="1bW2Oz">
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-                    <node concept="2jxLKc" id="3V7UZBYFrp" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817ka" role="1tU5fm" />
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@@ -3692,7 +3692,7 @@
                         <node concept="3fqX7Q" id="3V7UZBJ2W6" role="3clFbG">
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                             <node concept="37vLTw" id="3V7UZBJ2W8" role="2Oq$k0">
-                              <ref role="3cqZAo" node="3V7UZBJ2Wb" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817kb" resolve="it" />
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                             <node concept="1mIQ4w" id="3V7UZBJ2W9" role="2OqNvi">
                               <node concept="chp4Y" id="3V7UZBJ2Wa" role="cj9EA">
@@ -3703,9 +3703,9 @@
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+                    <node concept="gl6BB" id="4z0AnX817kb" role="1bW2Oz">
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+                      <node concept="2jxLKc" id="4z0AnX817kc" role="1tU5fm" />
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@@ -3956,7 +3956,7 @@
                         <node concept="3fqX7Q" id="3V7UZBIXpd" role="3clFbG">
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                               <node concept="chp4Y" id="3V7UZBIZb5" role="cj9EA">
@@ -3967,9 +3967,9 @@
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@@ -4670,7 +4670,7 @@
                         <node concept="2OqwBi" id="3xi1F8SDsq8" role="3clFbG">
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@@ -4680,7 +4680,7 @@
                                 <node concept="Jncv_" id="3xi1F8SDxWY" role="3cqZAp">
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                                   <node concept="37vLTw" id="3xi1F8SDzpl" role="JncvB">
-                                    <ref role="3cqZAo" node="3xi1F8SDuj7" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817kf" resolve="it" />
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                                     <node concept="3cpWs6" id="3xi1F8SDBGQ" role="3cqZAp">
@@ -4708,18 +4708,18 @@
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+                                <node concept="2jxLKc" id="4z0AnX817kg" role="1tU5fm" />
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@@ -4884,7 +4884,7 @@
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@@ -4892,9 +4892,9 @@
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@@ -5515,7 +5515,7 @@
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                           <node concept="37vLTw" id="Nuz63e$N8P" role="2Oq$k0">
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@@ -5524,9 +5524,9 @@
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                   </node>
-                  <node concept="Rh6nW" id="Nuz63e$N8R" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817kl" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="Nuz63e$N8S" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817km" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/constraints.mps
index 15ebec4fb3..025f4cdea2 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/constraints.mps
@@ -56,7 +56,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -138,7 +138,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/editor.mps
index 74e72302aa..9fa75cea3f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/editor.mps
@@ -1,13 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:da55d8c4-8189-4ee0-9cbe-92f7143eed21(org.iets3.core.expr.util.editor)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="14" />
     <use id="9d69e719-78c8-4286-90db-fb19c107d049" name="com.mbeddr.mpsutil.grammarcells" version="2" />
     <use id="7e450f4e-1ac3-41ef-a851-4598161bdb94" name="de.slisson.mps.tables" version="0" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
     <use id="c73b17af-16a1-4490-8072-8a84937c5206" name="com.mbeddr.mpsutil.treenotation" version="0" />
@@ -103,7 +104,7 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -126,7 +127,7 @@
       <concept id="1225456267680" name="jetbrains.mps.lang.editor.structure.RGBColor" flags="ng" index="1iSF2X">
         <property id="1225456424731" name="value" index="1iTho6" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1223387125302" name="jetbrains.mps.lang.editor.structure.QueryFunction_Boolean" flags="in" index="3nzxsE" />
@@ -157,7 +158,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -273,7 +274,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -298,6 +299,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -310,7 +312,7 @@
       <concept id="5083944728298846680" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell" flags="ng" index="_tjkj">
         <child id="5083944728298846681" name="option" index="_tjki" />
       </concept>
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
       <concept id="7363578995839435357" name="com.mbeddr.mpsutil.grammarcells.structure.WrapperCell" flags="ng" index="1kIj98">
@@ -440,7 +442,7 @@
       <concept id="4032373061957737357" name="de.slisson.mps.tables.structure.Parameter_Index" flags="ng" index="10bopy" />
       <concept id="4032373061957735279" name="de.slisson.mps.tables.structure.HeaderQuery_InsertNew" flags="ig" index="10boU0" />
       <concept id="4032373061970539014" name="de.slisson.mps.tables.structure.QueryParameter_EditorContext" flags="ng" index="1frAZD" />
-      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ng" index="1g0I81">
+      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ngI" index="1g0I81">
         <child id="5662204344887343006" name="style" index="1geGt4" />
       </concept>
       <concept id="5662204344885763446" name="de.slisson.mps.tables.structure.TableStyle" flags="ng" index="1g0IQG">
@@ -535,7 +537,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -556,7 +558,6 @@
       </concept>
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1235566831861" name="jetbrains.mps.baseLanguage.collections.structure.AllOperation" flags="nn" index="2HxqBE" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -846,7 +847,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="3DYDRw0Kc2Y" role="3uHU7B">
                                       <node concept="37vLTw" id="3DYDRw0KbYQ" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="3DYDRw0KbWL" resolve="it" />
+                                        <ref role="3cqZAo" node="EsIH9l3YB5" resolve="it" />
                                       </node>
                                       <node concept="3TrEf2" id="3DYDRw0Ke$o" role="2OqNvi">
                                         <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -855,9 +856,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3DYDRw0KbWL" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l3YB5" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="3DYDRw0KbWM" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l3YB6" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -868,15 +869,15 @@
                               <node concept="3clFbF" id="3DYDRw0Kf6$" role="3cqZAp">
                                 <node concept="2OqwBi" id="3DYDRw0KfbO" role="3clFbG">
                                   <node concept="37vLTw" id="3DYDRw0Kf6z" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3DYDRw0Kf1u" resolve="it" />
+                                    <ref role="3cqZAo" node="EsIH9l3YB7" resolve="it" />
                                   </node>
                                   <node concept="3YRAZt" id="3DYDRw0KfkK" role="2OqNvi" />
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="3DYDRw0Kf1u" role="1bW2Oz">
+                            <node concept="gl6BB" id="EsIH9l3YB7" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="3DYDRw0Kf1v" role="1tU5fm" />
+                              <node concept="2jxLKc" id="EsIH9l3YB8" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -984,7 +985,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="3DYDRw0Kg7G" role="3uHU7B">
                                         <node concept="37vLTw" id="3DYDRw0Kg7H" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3DYDRw0Kg7J" resolve="it" />
+                                          <ref role="3cqZAo" node="EsIH9l3YB9" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="3DYDRw0KgRh" role="2OqNvi">
                                           <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -993,9 +994,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="3DYDRw0Kg7J" role="1bW2Oz">
+                                <node concept="gl6BB" id="EsIH9l3YB9" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="3DYDRw0Kg7K" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="EsIH9l3YBa" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -1006,15 +1007,15 @@
                                 <node concept="3clFbF" id="3DYDRw0Kg7O" role="3cqZAp">
                                   <node concept="2OqwBi" id="3DYDRw0Kg7P" role="3clFbG">
                                     <node concept="37vLTw" id="3DYDRw0Kg7Q" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3DYDRw0Kg7S" resolve="it" />
+                                      <ref role="3cqZAo" node="EsIH9l3YBb" resolve="it" />
                                     </node>
                                     <node concept="3YRAZt" id="3DYDRw0Kg7R" role="2OqNvi" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3DYDRw0Kg7S" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l3YBb" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="3DYDRw0Kg7T" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l3YBc" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1132,7 +1133,7 @@
                                     <node concept="3clFbC" id="3DYDRw0KsTi" role="3uHU7w">
                                       <node concept="2OqwBi" id="3DYDRw0KsnG" role="3uHU7B">
                                         <node concept="37vLTw" id="3DYDRw0KsfP" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3DYDRw0Krsw" resolve="it" />
+                                          <ref role="3cqZAo" node="EsIH9l3YBd" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="3DYDRw0Kswo" role="2OqNvi">
                                           <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -1145,7 +1146,7 @@
                                     <node concept="3clFbC" id="3DYDRw0KrWr" role="3uHU7B">
                                       <node concept="2OqwBi" id="3DYDRw0KrCH" role="3uHU7B">
                                         <node concept="37vLTw" id="3DYDRw0Kryx" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3DYDRw0Krsw" resolve="it" />
+                                          <ref role="3cqZAo" node="EsIH9l3YBd" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="3DYDRw0KrM3" role="2OqNvi">
                                           <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -1158,9 +1159,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3DYDRw0Krsw" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l3YBd" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="3DYDRw0Krsx" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l3YBe" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1237,7 +1238,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="5yPljRYe7LG" role="3uHU7B">
                                               <node concept="37vLTw" id="5yPljRYe7LH" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="5yPljRYe7LO" resolve="it" />
+                                                <ref role="3cqZAo" node="EsIH9l3YBf" resolve="it" />
                                               </node>
                                               <node concept="3TrEf2" id="5yPljRYe7LI" role="2OqNvi">
                                                 <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -1247,7 +1248,7 @@
                                           <node concept="17R0WA" id="5yPljRYe7LJ" role="3uHU7B">
                                             <node concept="2OqwBi" id="5yPljRYe7LK" role="3uHU7B">
                                               <node concept="37vLTw" id="5yPljRYe7LL" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="5yPljRYe7LO" resolve="it" />
+                                                <ref role="3cqZAo" node="EsIH9l3YBf" resolve="it" />
                                               </node>
                                               <node concept="3TrEf2" id="5yPljRYe7LM" role="2OqNvi">
                                                 <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -1260,9 +1261,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="5yPljRYe7LO" role="1bW2Oz">
+                                    <node concept="gl6BB" id="EsIH9l3YBf" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="5yPljRYe7LP" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="EsIH9l3YBg" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -1825,7 +1826,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="3IFXLmixUlA" role="3uHU7B">
                                     <node concept="37vLTw" id="3IFXLmixUgE" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="3IFXLmixUb_" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817kz" resolve="it" />
                                     </node>
                                     <node concept="3TrcHB" id="3IFXLmixUDu" role="2OqNvi">
                                       <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -1834,9 +1835,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="3IFXLmixUb_" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817kz" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="3IFXLmixUbA" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817k$" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2495,7 +2496,7 @@
                             </node>
                             <node concept="2OqwBi" id="4_sn_QHl$rY" role="3uHU7B">
                               <node concept="37vLTw" id="4_sn_QHl$by" role="2Oq$k0">
-                                <ref role="3cqZAo" node="4_sn_QHl$29" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817k_" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="4_sn_QHl$CV" role="2OqNvi">
                                 <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -2504,9 +2505,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="4_sn_QHl$29" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817k_" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="4_sn_QHl$2a" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817kA" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -2599,7 +2600,7 @@
                                 <node concept="17R0WA" id="5yPljRY6LW_" role="3clFbG">
                                   <node concept="2OqwBi" id="5yPljRY6LWA" role="3uHU7B">
                                     <node concept="37vLTw" id="5yPljRY6LWB" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="5yPljRY6LWE" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817kB" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="5yPljRY6LWC" role="2OqNvi">
                                       <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -2611,9 +2612,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5yPljRY6LWE" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817kB" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="5yPljRY6LWF" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817kC" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2903,7 +2904,7 @@
                         <node concept="3clFbF" id="Nuz63fmUld" role="3cqZAp">
                           <node concept="2OqwBi" id="Nuz63fmUGc" role="3clFbG">
                             <node concept="37vLTw" id="Nuz63fmUlc" role="2Oq$k0">
-                              <ref role="3cqZAo" node="Nuz63fmTZJ" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817kD" resolve="it" />
                             </node>
                             <node concept="1mIQ4w" id="Nuz63fmVrT" role="2OqNvi">
                               <node concept="chp4Y" id="Nuz63fn2xe" role="cj9EA">
@@ -2913,9 +2914,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="Nuz63fmTZJ" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817kD" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="Nuz63fmTZK" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817kE" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3633,7 +3634,7 @@
                                     <node concept="2OqwBi" id="7WrYb3epqj3" role="2Oq$k0">
                                       <node concept="2OqwBi" id="7WrYb3epqj4" role="2Oq$k0">
                                         <node concept="37vLTw" id="7WrYb3epqj5" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="7WrYb3epqjr" resolve="row" />
+                                          <ref role="3cqZAo" node="EsIH9l3YBl" resolve="row" />
                                         </node>
                                         <node concept="3Tsc0h" id="7WrYb3epqj6" role="2OqNvi">
                                           <ref role="3TtcxE" to="kfo3:8XWEtdYkjq" resolve="contents" />
@@ -3649,7 +3650,7 @@
                                                 </node>
                                                 <node concept="2OqwBi" id="7WrYb3epqjd" role="3uHU7B">
                                                   <node concept="37vLTw" id="7WrYb3epqje" role="2Oq$k0">
-                                                    <ref role="3cqZAo" node="7WrYb3epqjg" resolve="c" />
+                                                    <ref role="3cqZAo" node="EsIH9l3YBh" resolve="c" />
                                                   </node>
                                                   <node concept="3TrEf2" id="7WrYb3epqjf" role="2OqNvi">
                                                     <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -3658,9 +3659,9 @@
                                               </node>
                                             </node>
                                           </node>
-                                          <node concept="Rh6nW" id="7WrYb3epqjg" role="1bW2Oz">
+                                          <node concept="gl6BB" id="EsIH9l3YBh" role="1bW2Oz">
                                             <property role="TrG5h" value="c" />
-                                            <node concept="2jxLKc" id="7WrYb3epqjh" role="1tU5fm" />
+                                            <node concept="2jxLKc" id="EsIH9l3YBi" role="1tU5fm" />
                                           </node>
                                         </node>
                                       </node>
@@ -3671,24 +3672,24 @@
                                           <node concept="3clFbF" id="7WrYb3epqjl" role="3cqZAp">
                                             <node concept="2OqwBi" id="7WrYb3epqjm" role="3clFbG">
                                               <node concept="37vLTw" id="7WrYb3epqjn" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="7WrYb3epqjp" resolve="c" />
+                                                <ref role="3cqZAo" node="EsIH9l3YBj" resolve="c" />
                                               </node>
                                               <node concept="3YRAZt" id="7WrYb3epqjo" role="2OqNvi" />
                                             </node>
                                           </node>
                                         </node>
-                                        <node concept="Rh6nW" id="7WrYb3epqjp" role="1bW2Oz">
+                                        <node concept="gl6BB" id="EsIH9l3YBj" role="1bW2Oz">
                                           <property role="TrG5h" value="c" />
-                                          <node concept="2jxLKc" id="7WrYb3epqjq" role="1tU5fm" />
+                                          <node concept="2jxLKc" id="EsIH9l3YBk" role="1tU5fm" />
                                         </node>
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="7WrYb3epqjr" role="1bW2Oz">
+                              <node concept="gl6BB" id="EsIH9l3YBl" role="1bW2Oz">
                                 <property role="TrG5h" value="row" />
-                                <node concept="2jxLKc" id="7WrYb3epqjs" role="1tU5fm" />
+                                <node concept="2jxLKc" id="EsIH9l3YBm" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/intentions.mps
index 736d5b5497..135a44c8e8 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/intentions.mps
@@ -131,7 +131,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -153,7 +153,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -175,6 +175,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -303,7 +304,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -328,7 +329,6 @@
       </concept>
       <concept id="1235566831861" name="jetbrains.mps.baseLanguage.collections.structure.AllOperation" flags="nn" index="2HxqBE" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
@@ -662,7 +662,7 @@
                     </node>
                     <node concept="2OqwBi" id="5crSXLEcpc" role="2GsD0m">
                       <node concept="37vLTw" id="5crSXLEbvT" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7Oac05Ij7Wu" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817kL" resolve="it" />
                       </node>
                       <node concept="3Tsc0h" id="5crSXLEhU1" role="2OqNvi">
                         <ref role="3TtcxE" to="kfo3:3DYDRw0K4cg" resolve="expressions" />
@@ -714,9 +714,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7Oac05Ij7Wu" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817kL" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7Oac05Ij7Wv" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817kM" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -754,7 +754,7 @@
                     </node>
                     <node concept="2OqwBi" id="5crSXLETXB" role="2GsD0m">
                       <node concept="37vLTw" id="5crSXLETXC" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7Oac05IjcnA" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817kN" resolve="it" />
                       </node>
                       <node concept="3Tsc0h" id="5crSXLETXD" role="2OqNvi">
                         <ref role="3TtcxE" to="kfo3:3DYDRw0K4cg" resolve="expressions" />
@@ -807,9 +807,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="7Oac05IjcnA" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817kN" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7Oac05IjcnB" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817kO" role="1tU5fm" />
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               </node>
             </node>
@@ -847,7 +847,7 @@
                     </node>
                     <node concept="2OqwBi" id="5crSXLEWz$" role="2GsD0m">
                       <node concept="37vLTw" id="5crSXLEWz_" role="2Oq$k0">
-                        <ref role="3cqZAo" node="7Oac05Ijh7v" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817kP" resolve="it" />
                       </node>
                       <node concept="3Tsc0h" id="5crSXLEWzA" role="2OqNvi">
                         <ref role="3TtcxE" to="kfo3:3DYDRw0K4cg" resolve="expressions" />
@@ -910,7 +910,7 @@
                                     <node concept="2OqwBi" id="7Oac05IjGq8" role="25WWJ7">
                                       <node concept="2OqwBi" id="7Oac05IjFYu" role="2Oq$k0">
                                         <node concept="37vLTw" id="7Oac05IjFPu" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="7Oac05Ijh7v" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817kP" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="7Oac05IjGdE" role="2OqNvi">
                                           <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -938,7 +938,7 @@
                                     <node concept="2OqwBi" id="7Oac05IjKo5" role="25WWJ7">
                                       <node concept="2OqwBi" id="7Oac05IjKo6" role="2Oq$k0">
                                         <node concept="37vLTw" id="7Oac05IjKo7" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="7Oac05Ijh7v" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817kP" resolve="it" />
                                         </node>
                                         <node concept="3TrEf2" id="7Oac05IjLgw" role="2OqNvi">
                                           <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -956,9 +956,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="7Oac05Ijh7v" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817kP" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="7Oac05Ijh7w" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817kQ" role="1tU5fm" />
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               </node>
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@@ -2045,7 +2045,7 @@
                             </node>
                             <node concept="2OqwBi" id="6vi7U_pxVL5" role="3uHU7B">
                               <node concept="37vLTw" id="6vi7U_pxV$E" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6vi7U_pxV3f" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817kR" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="6vi7U_pxVVN" role="2OqNvi">
                                 <ref role="3Tt5mk" to="kfo3:8XWEtdYkmU" resolve="col" />
@@ -2054,9 +2054,9 @@
                           </node>
                         </node>
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-                      <node concept="Rh6nW" id="6vi7U_pxV3f" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817kR" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6vi7U_pxV3g" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817kS" role="1tU5fm" />
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@@ -2067,15 +2067,15 @@
                       <node concept="3clFbF" id="6vi7U_pycwt" role="3cqZAp">
                         <node concept="2OqwBi" id="6vi7U_pycD_" role="3clFbG">
                           <node concept="37vLTw" id="6vi7U_pycws" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6vi7U_pycwi" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817kT" resolve="it" />
                           </node>
                           <node concept="3YRAZt" id="6vi7U_pycW8" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6vi7U_pycwi" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817kT" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6vi7U_pycwj" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817kU" role="1tU5fm" />
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@@ -2282,7 +2282,7 @@
                         </node>
                         <node concept="2OqwBi" id="6vi7U_pwPFX" role="3uHU7B">
                           <node concept="37vLTw" id="6vi7U_pwPFY" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6vi7U_pwPG0" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817kV" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="6vi7U_pwRVM" role="2OqNvi">
                             <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -2291,9 +2291,9 @@
                       </node>
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-                  <node concept="Rh6nW" id="6vi7U_pwPG0" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817kV" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6vi7U_pwPG1" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817kW" role="1tU5fm" />
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@@ -2304,15 +2304,15 @@
                   <node concept="3clFbF" id="6vi7U_pwPG5" role="3cqZAp">
                     <node concept="2OqwBi" id="6vi7U_pwPG6" role="3clFbG">
                       <node concept="37vLTw" id="6vi7U_pwPG7" role="2Oq$k0">
-                        <ref role="3cqZAo" node="6vi7U_pwPG9" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817kX" resolve="it" />
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                       <node concept="3YRAZt" id="6vi7U_pwPG8" role="2OqNvi" />
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                   </node>
                 </node>
-                <node concept="Rh6nW" id="6vi7U_pwPG9" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817kX" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6vi7U_pwPGa" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817kY" role="1tU5fm" />
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               </node>
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@@ -2517,7 +2517,7 @@
                         </node>
                         <node concept="2OqwBi" id="6vi7U_pwzRg" role="3uHU7B">
                           <node concept="37vLTw" id="6vi7U_pwzCL" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6vi7U_pwzvR" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817kZ" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="6vi7U_pw$9M" role="2OqNvi">
                             <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -2526,9 +2526,9 @@
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-                  <node concept="Rh6nW" id="6vi7U_pwzvR" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817kZ" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6vi7U_pwzvS" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817l0" role="1tU5fm" />
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@@ -2539,15 +2539,15 @@
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-                        <ref role="3cqZAo" node="6vi7U_pwNBp" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817l1" resolve="it" />
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                       <node concept="3YRAZt" id="6vi7U_pwOf9" role="2OqNvi" />
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-                <node concept="Rh6nW" id="6vi7U_pwNBp" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817l1" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6vi7U_pwNBq" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817l2" role="1tU5fm" />
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@@ -4180,7 +4180,7 @@
                                             </node>
                                             <node concept="2OqwBi" id="1bYFVysIU$1" role="1m5AlR">
                                               <node concept="37vLTw" id="1bYFVysIU6E" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="1bYFVysIvDj" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817l3" resolve="it" />
                                               </node>
                                               <node concept="3TrEf2" id="1bYFVysIVkF" role="2OqNvi">
                                                 <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpI" resolve="when" />
@@ -4211,7 +4211,7 @@
                                       <node concept="36biLy" id="1bYFVysJ05h" role="36be1Z">
                                         <node concept="2OqwBi" id="1bYFVysJ0Y9" role="36biLW">
                                           <node concept="37vLTw" id="1bYFVysJ0vn" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="1bYFVysIvDj" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817l3" resolve="it" />
                                           </node>
                                           <node concept="3TrEf2" id="1bYFVysJ1Jm" role="2OqNvi">
                                             <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpK" resolve="then" />
@@ -4229,9 +4229,9 @@
                     </node>
                   </node>
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-                <node concept="Rh6nW" id="1bYFVysIvDj" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817l3" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1bYFVysIvDk" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817l4" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -4276,7 +4276,7 @@
                     <node concept="3clFbF" id="1bYFVysHxOW" role="3cqZAp">
                       <node concept="2OqwBi" id="1bYFVysHxOX" role="3clFbG">
                         <node concept="37vLTw" id="1bYFVysHxOY" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1bYFVysHxP1" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817l5" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="1bYFVysHxOZ" role="2OqNvi">
                           <node concept="chp4Y" id="1bYFVysHxP0" role="cj9EA">
@@ -4286,9 +4286,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1bYFVysHxP1" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817l5" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="1bYFVysHxP2" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817l6" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -4343,27 +4343,27 @@
                       <node concept="3clFbF" id="1bYFVysHV3B" role="3cqZAp">
                         <node concept="3K4zz7" id="1bYFVysHV3C" role="3clFbG">
                           <node concept="37vLTw" id="1bYFVysHV3D" role="3K4E3e">
-                            <ref role="3cqZAo" node="1bYFVysHV3I" resolve="a" />
+                            <ref role="3cqZAo" node="4z0AnX817l7" resolve="a" />
                           </node>
                           <node concept="10Nm6u" id="1bYFVysHV3E" role="3K4GZi" />
                           <node concept="13dIca" id="1bYFVysHV3F" role="3K4Cdx">
                             <node concept="37vLTw" id="1bYFVysHV3G" role="3uHU7w">
-                              <ref role="3cqZAo" node="1bYFVysHV3K" resolve="b" />
+                              <ref role="3cqZAo" node="4z0AnX817l9" resolve="b" />
                             </node>
                             <node concept="37vLTw" id="1bYFVysHV3H" role="3uHU7B">
-                              <ref role="3cqZAo" node="1bYFVysHV3I" resolve="a" />
+                              <ref role="3cqZAo" node="4z0AnX817l7" resolve="a" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1bYFVysHV3I" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817l7" role="1bW2Oz">
                       <property role="TrG5h" value="a" />
-                      <node concept="2jxLKc" id="1bYFVysHV3J" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817l8" role="1tU5fm" />
                     </node>
-                    <node concept="Rh6nW" id="1bYFVysHV3K" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817l9" role="1bW2Oz">
                       <property role="TrG5h" value="b" />
-                      <node concept="2jxLKc" id="1bYFVysHV3L" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817la" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/migration.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/migration.mps
index 03a866b3d8..9403816a17 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/migration.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/migration.mps
@@ -29,7 +29,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/plugin.mps
index c3a582ceff..50c67f9202 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:8df617af-5f5f-45a6-8691-2aa535b4748e(org.iets3.core.expr.util.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="-1" />
   </languages>
   <imports />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/structure.mps
index a082e33a4a..a6a63c0b98 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/structure.mps
@@ -2,8 +2,8 @@
 <model ref="r:6bb59b1e-6116-48ad-b11d-2641d4f6b6a1(org.iets3.core.expr.util.structure)">
   <persistence version="9" />
   <languages>
-    <use id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure" version="9" />
-    <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="2" />
+    <use id="c72da2b9-7cce-4447-8389-f407dc1158b7" name="jetbrains.mps.lang.structure" version="-1" />
+    <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="-1" />
     <devkit ref="78434eb8-b0e5-444b-850d-e7c4ad2da9ab(jetbrains.mps.devkit.aspect.structure)" />
   </languages>
   <imports>
@@ -58,7 +58,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/typesystem.mps
index 659e7a4a1c..1b5b6944fe 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/models/typesystem.mps
@@ -86,7 +86,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -106,6 +106,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -259,7 +260,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -288,7 +289,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -566,7 +566,7 @@
                                 </node>
                                 <node concept="2OqwBi" id="3DYDRw0NDNU" role="3uHU7B">
                                   <node concept="37vLTw" id="3DYDRw0NDHw" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3DYDRw0NDbr" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817lb" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="3DYDRw0NDUG" role="2OqNvi">
                                     <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -576,7 +576,7 @@
                               <node concept="3clFbC" id="3DYDRw0NDyp" role="3uHU7B">
                                 <node concept="2OqwBi" id="3DYDRw0NDhw" role="3uHU7B">
                                   <node concept="37vLTw" id="3DYDRw0NDdz" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3DYDRw0NDbr" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817lb" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="3DYDRw0NDqX" role="2OqNvi">
                                     <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -589,9 +589,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="3DYDRw0NDbr" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817lb" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="3DYDRw0NDbs" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817lc" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -1128,7 +1128,7 @@
                     <node concept="3clFbF" id="wW2kvILYjh" role="3cqZAp">
                       <node concept="2OqwBi" id="wW2kvILYnd" role="3clFbG">
                         <node concept="37vLTw" id="wW2kvILYjg" role="2Oq$k0">
-                          <ref role="3cqZAo" node="wW2kvILYhd" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817ld" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="wW2kvILYt8" role="2OqNvi">
                           <ref role="37wK5l" to="wthy:22hm_0$b7pE" resolve="isLeaf" />
@@ -1136,9 +1136,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="wW2kvILYhd" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ld" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="wW2kvILYhe" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817le" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1297,7 +1297,7 @@
                 <node concept="3clFbF" id="8XWEtejDgz" role="3cqZAp">
                   <node concept="2OqwBi" id="8XWEtejDrJ" role="3clFbG">
                     <node concept="37vLTw" id="8XWEtejDgy" role="2Oq$k0">
-                      <ref role="3cqZAo" node="8XWEtejDd7" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817lf" resolve="it" />
                     </node>
                     <node concept="1mIQ4w" id="8XWEtejDAq" role="2OqNvi">
                       <node concept="chp4Y" id="8XWEtejDHK" role="cj9EA">
@@ -1307,9 +1307,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="8XWEtejDd7" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817lf" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="8XWEtejDd8" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817lg" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -1751,15 +1751,15 @@
                       <node concept="3clFbF" id="6OunYCf2NN$" role="3cqZAp">
                         <node concept="2OqwBi" id="6OunYCf2NXm" role="3clFbG">
                           <node concept="37vLTw" id="6OunYCf2NNz" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6OunYCf2NHZ" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817lh" resolve="it" />
                           </node>
                           <node concept="2yIwOk" id="6OunYCf2Oc3" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6OunYCf2NHZ" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817lh" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6OunYCf2NI0" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817li" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1837,7 +1837,7 @@
                     <node concept="3clFbF" id="5aYM8itbLEg" role="3cqZAp">
                       <node concept="2OqwBi" id="5aYM8itbLSL" role="3clFbG">
                         <node concept="37vLTw" id="5aYM8itbLEf" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5aYM8itbL$o" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817lj" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="5aYM8itbNfB" role="2OqNvi">
                           <ref role="37wK5l" to="wthy:3V7UZBYyZ4" resolve="isDefault" />
@@ -1845,9 +1845,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="5aYM8itbL$o" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817lj" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="5aYM8itbL$p" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817lk" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -2053,7 +2053,7 @@
                                   <ref role="2pIpSl" to="kfo3:7EKPeISC$Mj" resolve="col" />
                                   <node concept="36biLy" id="7EKPeISCZcK" role="28nt2d">
                                     <node concept="37vLTw" id="7EKPeISCZcL" role="36biLW">
-                                      <ref role="3cqZAo" node="7EKPeISCZcM" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817ll" resolve="it" />
                                     </node>
                                   </node>
                                 </node>
@@ -2061,9 +2061,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="7EKPeISCZcM" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817ll" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="7EKPeISCZcN" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817lm" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/org.iets3.core.expr.util.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/org.iets3.core.expr.util.mpl
index 1a62dff406..4217e09d3b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/org.iets3.core.expr.util.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.expr.util/org.iets3.core.expr.util.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)</dependency>
@@ -48,7 +47,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -73,7 +72,7 @@
     <language slang="l:9882f4ad-1955-46fe-8269-94189e5dbbf2:jetbrains.mps.lang.migration.util" version="0" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:b3551702-269c-4f05-ba61-58060cef4292:jetbrains.mps.lang.rulesAndMessages" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/models/org/iets3/core/plugin/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/models/org/iets3/core/plugin/plugin.mps
index 73b4183d54..4e504fca5e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/models/org/iets3/core/plugin/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/models/org/iets3/core/plugin/plugin.mps
@@ -4,7 +4,7 @@
   <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="-1" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="1f1b4a81-113d-4b88-9b67-2bae3e4f8128" name="com.mbeddr.mpsutil.projectview" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="11" />
     <use id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers" version="-1" />
@@ -46,6 +46,7 @@
       <concept id="1203071646776" name="jetbrains.mps.lang.plugin.structure.ActionDeclaration" flags="ng" index="sE7Ow">
         <property id="1207149998849" name="isAlwaysVisible" index="fJN8o" />
         <property id="1205250923097" name="caption" index="2uzpH1" />
+        <property id="4692598989365753297" name="updateInBackground" index="1rBW0U" />
         <property id="997079742910640235" name="fillActionContext" index="1teQrl" />
         <child id="1203083196627" name="updateBlock" index="tmbBb" />
         <child id="1203083461638" name="executeFunction" index="tncku" />
@@ -219,6 +220,7 @@
       <concept id="8974276187400348177" name="jetbrains.mps.lang.access.structure.ExecuteCommandStatement" flags="nn" index="1QHqEO" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -325,7 +327,6 @@
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162935959151" name="jetbrains.mps.baseLanguage.collections.structure.GetSizeOperation" flags="nn" index="34oBXx" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -451,7 +452,7 @@
                     <node concept="3clFbF" id="6LfBX8Yg$Ya" role="3cqZAp">
                       <node concept="2OqwBi" id="6LfBX8Yg$Yb" role="3clFbG">
                         <node concept="37vLTw" id="6LfBX8Yg$Yc" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6LfBX8Yg$Ye" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817mg" resolve="it" />
                         </node>
                         <node concept="liA8E" id="6LfBX8Yg$Yd" role="2OqNvi">
                           <ref role="37wK5l" to="lui2:~SModule.getModels()" resolve="getModels" />
@@ -459,9 +460,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6LfBX8Yg$Ye" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817mg" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6LfBX8Yg$Yf" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817mh" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -480,7 +481,7 @@
                     <node concept="2OqwBi" id="6LfBX8YgEuh" role="3clFbG">
                       <node concept="2OqwBi" id="6LfBX8YgAau" role="2Oq$k0">
                         <node concept="37vLTw" id="6LfBX8YgA7J" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6LfBX8Yg_YX" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817mi" resolve="it" />
                         </node>
                         <node concept="2RRcyG" id="6LfBX8YgAdn" role="2OqNvi">
                           <node concept="chp4Y" id="aofgSPMowO" role="3MHsoP">
@@ -492,9 +493,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6LfBX8Yg_YX" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mi" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6LfBX8Yg_YY" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mj" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -854,7 +855,7 @@
                                   <node concept="1Wc70l" id="4bmM0avMJp7" role="3clFbG">
                                     <node concept="2OqwBi" id="4bmM0avMJCU" role="3uHU7w">
                                       <node concept="37vLTw" id="4bmM0avMJwc" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="4bmM0avMIWp" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817mk" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="4bmM0avMJQa" role="2OqNvi">
                                         <ref role="37wK5l" to="gdgh:3R3AIvumwpv" resolve="readyToRunManually" />
@@ -862,7 +863,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="4bmM0avMJ3w" role="3uHU7B">
                                       <node concept="37vLTw" id="4bmM0avMIZE" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="4bmM0avMIWp" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817mk" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="4bmM0avMJeK" role="2OqNvi">
                                         <ref role="37wK5l" to="gdgh:3R3AIvumAZH" resolve="mustBeRunManually" />
@@ -871,9 +872,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="4bmM0avMIWp" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817mk" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="4bmM0avMIWq" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817ml" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -996,6 +997,7 @@
     <property role="2uzpH1" value="Run/Evaluate/Check All in Model Manually" />
     <property role="3GE5qa" value="view" />
     <property role="1teQrl" value="true" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="3HmE5WaYae3" role="tncku">
       <node concept="3clFbS" id="3HmE5WaYae4" role="2VODD2">
         <node concept="3cpWs8" id="3HmE5WaYmi_" role="3cqZAp">
@@ -1111,7 +1113,7 @@
                                   <node concept="1Wc70l" id="3HmE5WaYaes" role="3clFbG">
                                     <node concept="2OqwBi" id="3HmE5WaYaet" role="3uHU7w">
                                       <node concept="37vLTw" id="3HmE5WaYaeu" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="3HmE5WaYaez" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817mm" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="3HmE5WaYaev" role="2OqNvi">
                                         <ref role="37wK5l" to="gdgh:3R3AIvumwpv" resolve="readyToRunManually" />
@@ -1119,7 +1121,7 @@
                                     </node>
                                     <node concept="2OqwBi" id="3HmE5WaYaew" role="3uHU7B">
                                       <node concept="37vLTw" id="3HmE5WaYaex" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="3HmE5WaYaez" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817mm" resolve="it" />
                                       </node>
                                       <node concept="2qgKlT" id="3HmE5WaYaey" role="2OqNvi">
                                         <ref role="37wK5l" to="gdgh:3R3AIvumAZH" resolve="mustBeRunManually" />
@@ -1128,9 +1130,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="3HmE5WaYaez" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817mm" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="3HmE5WaYae$" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817mn" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -1396,7 +1398,7 @@
                     <node concept="1Wc70l" id="TuTPrvRwMB" role="3clFbG">
                       <node concept="2OqwBi" id="TuTPrvRxja" role="3uHU7w">
                         <node concept="37vLTw" id="TuTPrvRx4I" role="2Oq$k0">
-                          <ref role="3cqZAo" node="TuTPrvRv5a" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817mo" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="TuTPrvRxBV" role="2OqNvi">
                           <ref role="37wK5l" to="gdgh:3R3AIvumwpv" resolve="readyToRunManually" />
@@ -1404,7 +1406,7 @@
                       </node>
                       <node concept="2OqwBi" id="TuTPrvRvHM" role="3uHU7B">
                         <node concept="37vLTw" id="TuTPrvRvus" role="2Oq$k0">
-                          <ref role="3cqZAo" node="TuTPrvRv5a" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817mo" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="TuTPrvRwjm" role="2OqNvi">
                           <ref role="37wK5l" to="gdgh:3R3AIvumAZH" resolve="mustBeRunManually" />
@@ -1413,9 +1415,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="TuTPrvRv5a" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mo" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="TuTPrvRv5b" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mp" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/org.iets3.core.plugin.msd b/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/org.iets3.core.plugin.msd
index 0b2720c071..09bc0a3654 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/org.iets3.core.plugin.msd
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.plugin/org.iets3.core.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.plugin" uuid="07e2118e-763f-4d93-8ae6-23cf5ede3d59" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.plugin" uuid="07e2118e-763f-4d93-8ae6-23cf5ede3d59" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)</dependency>
     <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
@@ -26,11 +25,11 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:63650c59-16c8-498a-99c8-005c7ee9515d:jetbrains.mps.lang.access" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/behavior.mps
index 3cf8ed9dc7..5e879090e7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/behavior.mps
@@ -45,11 +45,11 @@
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -77,7 +77,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/structure.mps
index b994a86518..e81b45e3c4 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/models/org/iets3/core/trace/test/structure.mps
@@ -20,7 +20,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/org.iets3.core.trace.test.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/org.iets3.core.trace.test.mpl
index 95277f5e0f..bfd8a3ffe0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/org.iets3.core.trace.test.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace.sandbox/org.iets3.core.trace.test.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
   </dependencies>
@@ -19,7 +18,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/behavior.mps
index 4e4b1804af..59c204a0a0 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/behavior.mps
@@ -87,7 +87,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
@@ -97,7 +97,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -138,7 +138,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/constraints.mps
index aa69cfbfeb..3719902f5d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/constraints.mps
@@ -31,7 +31,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/findUsages.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/findUsages.mps
index c2804fdba9..2118ec6351 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/findUsages.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/findUsages.mps
@@ -40,11 +40,12 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -68,7 +69,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -98,7 +99,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
     </language>
   </registry>
   <node concept="2PqlIr" id="1Sur9ckOV6J">
@@ -137,7 +137,7 @@
                     <node concept="2OqwBi" id="1Sur9ckR4jc" role="1O1k6O">
                       <node concept="2OqwBi" id="1Sur9ckQjUd" role="2Oq$k0">
                         <node concept="37vLTw" id="1Sur9ckP0Tr" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1Sur9ckP0$e" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817lo" resolve="it" />
                         </node>
                         <node concept="2Xjw5R" id="1Sur9ckQk6t" role="2OqNvi">
                           <node concept="1xMEDy" id="1Sur9ckQk6v" role="1xVPHs">
@@ -153,9 +153,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1Sur9ckP0$e" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817lo" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1Sur9ckP0$f" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817lp" role="1tU5fm" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/plugin.mps
index 5870f35766..279711e2ac 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/plugin.mps
@@ -4,9 +4,9 @@
   <languages>
     <use id="f159adf4-3c93-40f9-9c5a-1f245a8697af" name="jetbrains.mps.lang.aspect" version="2" />
     <use id="696c1165-4a59-463b-bc5d-902caab85dd0" name="jetbrains.mps.make.facet" version="0" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <devkit ref="2677cb18-f558-4e33-bc38-a5139cee06dc(jetbrains.mps.devkit.language-design)" />
@@ -83,7 +83,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -102,7 +102,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -112,6 +112,7 @@
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -146,7 +147,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -181,7 +182,6 @@
         <child id="1151689745422" name="elementType" index="A3Ik2" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1176501494711" name="jetbrains.mps.baseLanguage.collections.structure.IsNotEmptyOperation" flags="nn" index="3GX2aA" />
@@ -250,7 +250,7 @@
                             <node concept="2OqwBi" id="1HLccB8zPT1" role="3uHU7B">
                               <node concept="2OqwBi" id="1HLccB8zPT2" role="2Oq$k0">
                                 <node concept="37vLTw" id="1HLccB8zPT3" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1HLccB8zPT6" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817lq" resolve="it" />
                                 </node>
                                 <node concept="3TrEf2" id="1HLccB8zPT4" role="2OqNvi">
                                   <ref role="3Tt5mk" to="ci3w:1PzuxQOT_10" resolve="traceKind" />
@@ -261,9 +261,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1HLccB8zPT6" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817lq" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1HLccB8zPT7" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817lr" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -319,7 +319,7 @@
                             <node concept="2OqwBi" id="mhbzaHmHlJ" role="2Oq$k0">
                               <node concept="2OqwBi" id="mhbzaHmHlK" role="2Oq$k0">
                                 <node concept="37vLTw" id="mhbzaHmHlL" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1HLccB8zGMk" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817ls" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="mhbzaHmHlM" role="2OqNvi">
                                   <ref role="37wK5l" to="fp62:7qN5a9Pfhlm" resolve="getTraceSource" />
@@ -330,9 +330,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1HLccB8zGMk" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817ls" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1HLccB8zGMl" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817lt" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -380,7 +380,7 @@
                               <node concept="2OqwBi" id="1HLccB8zH07" role="2Oq$k0">
                                 <node concept="2OqwBi" id="1HLccB8zH08" role="2Oq$k0">
                                   <node concept="37vLTw" id="1HLccB8zH09" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1HLccB8zH0m" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817lw" resolve="it" />
                                   </node>
                                   <node concept="3Tsc0h" id="1HLccB8zH0a" role="2OqNvi">
                                     <ref role="3TtcxE" to="ci3w:1PzuxQOT_1a" resolve="traceTarget" />
@@ -397,7 +397,7 @@
                                       <node concept="2OqwBi" id="mhbzaHmpxH" role="3clFbG">
                                         <node concept="2OqwBi" id="mhbzaHmpxI" role="2Oq$k0">
                                           <node concept="37vLTw" id="mhbzaHmpxJ" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="1HLccB8zH0j" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817lu" resolve="it" />
                                           </node>
                                           <node concept="2yIwOk" id="mhbzaHmpxK" role="2OqNvi" />
                                         </node>
@@ -413,9 +413,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="1HLccB8zH0j" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817lu" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="1HLccB8zH0k" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817lv" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -424,9 +424,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1HLccB8zH0m" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817lw" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="1HLccB8zH0n" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817lx" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -835,7 +835,7 @@
                       <node concept="3clFbF" id="1HLccB8vN07" role="3cqZAp">
                         <node concept="2OqwBi" id="1HLccB8vN08" role="3clFbG">
                           <node concept="37vLTw" id="1HLccB8vN09" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1HLccB8vN0c" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817ly" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="1HLccB8vN0a" role="2OqNvi">
                             <node concept="chp4Y" id="1HLccB8vN0b" role="cj9EA">
@@ -845,9 +845,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1HLccB8vN0c" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817ly" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1HLccB8vN0d" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817lz" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -983,7 +983,7 @@
                         <node concept="2OqwBi" id="6_Ift$_F4Yl" role="2Oq$k0">
                           <node concept="2OqwBi" id="6_Ift$_F48s" role="2Oq$k0">
                             <node concept="37vLTw" id="6_Ift$_F3XG" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6_Ift$_F3Nr" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817l$" resolve="it" />
                             </node>
                             <node concept="2yIwOk" id="6_Ift$_F4L7" role="2OqNvi" />
                           </node>
@@ -998,9 +998,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6_Ift$_F3Nr" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817l$" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6_Ift$_F3Ns" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817l_" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1016,7 +1016,7 @@
                       </node>
                       <node concept="zAVLd" id="6_Ift$_DjDF" role="33vP2m">
                         <node concept="37vLTw" id="6_Ift$_DjDG" role="2GiN3p">
-                          <ref role="3cqZAo" node="6_Ift$_DjDO" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817lA" resolve="it" />
                         </node>
                         <node concept="zAVLb" id="6_Ift$_DjDH" role="1C5ry4">
                           <ref role="2$JaeB" to="qo9z:1Sur9ckOV6J" resolve="FindTraces" />
@@ -1040,9 +1040,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="6_Ift$_DjDO" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817lA" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="6_Ift$_DjDP" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817lB" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1090,7 +1090,7 @@
                         <node concept="2OqwBi" id="6_Ift$_PDBW" role="3uHU7B">
                           <node concept="2OqwBi" id="6_Ift$_OnOS" role="2Oq$k0">
                             <node concept="37vLTw" id="6_Ift$_OnOT" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6_Ift$_OnOV" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817lC" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="6_Ift$_OnOU" role="2OqNvi">
                               <ref role="3Tt5mk" to="ci3w:1PzuxQOT_10" resolve="traceKind" />
@@ -1107,9 +1107,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6_Ift$_OnOV" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817lC" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6_Ift$_OnOW" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817lD" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/structure.mps
index 790003f80c..e964610987 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/models/structure.mps
@@ -40,7 +40,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/org.iets3.core.trace.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/org.iets3.core.trace.mpl
index 89108a7d59..0beeaaa3a9 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/org.iets3.core.trace.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.trace/org.iets3.core.trace.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
@@ -49,7 +48,7 @@
     <language slang="l:d7a92d38-f7db-40d0-8431-763b0c3c9f20:jetbrains.mps.lang.intentions" version="1" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:d4615e3b-d671-4ba9-af01-2b78369b0ba7:jetbrains.mps.lang.pattern" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:3ecd7c84-cde3-45de-886c-135ecc69b742:jetbrains.mps.lang.refactoring" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/behavior.mps
index 5be820485e..964012eaad 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/behavior.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="2" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
   </languages>
   <imports>
@@ -60,12 +60,12 @@
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
       <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -85,7 +85,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/editor.mps
index cd85440184..f431938a5a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/editor.mps
@@ -65,7 +65,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1187258617779" name="jetbrains.mps.lang.editor.structure.ForegroundNullColorStyleClassItem" flags="ln" index="1I8cUB" />
@@ -116,7 +116,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -145,7 +145,7 @@
       <concept id="1397920687864683158" name="de.slisson.mps.tables.structure.Table" flags="ng" index="2rfBfz">
         <child id="1397920687864865354" name="cells" index="2rf8GZ" />
       </concept>
-      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ng" index="1g0I81">
+      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ngI" index="1g0I81">
         <child id="5662204344887343006" name="style" index="1geGt4" />
       </concept>
       <concept id="5662204344885763446" name="de.slisson.mps.tables.structure.TableStyle" flags="ng" index="1g0IQG" />
@@ -163,7 +163,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/structure.mps
index 327e1b7485..5b7240d037 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/structure.mps
@@ -44,7 +44,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/typesystem.mps
index 69f676ad55..07317b3689 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/models/typesystem.mps
@@ -48,12 +48,13 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -92,7 +93,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -111,7 +112,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1172254888721" name="jetbrains.mps.baseLanguage.collections.structure.ContainsOperation" flags="nn" index="3JPx81" />
     </language>
@@ -232,7 +232,7 @@
                         <property role="Xl_RC" value="duplicate user name" />
                       </node>
                       <node concept="37vLTw" id="7mG7sQPpng9" role="1urrMF">
-                        <ref role="3cqZAo" node="7mG7sQPplJp" resolve="u" />
+                        <ref role="3cqZAo" node="4z0AnX817lE" resolve="u" />
                       </node>
                     </node>
                   </node>
@@ -243,7 +243,7 @@
                     <node concept="3JPx81" id="7mG7sQPpmg7" role="2OqNvi">
                       <node concept="2OqwBi" id="7mG7sQPpmmQ" role="25WWJ7">
                         <node concept="37vLTw" id="7mG7sQPpmhZ" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7mG7sQPplJp" resolve="u" />
+                          <ref role="3cqZAo" node="4z0AnX817lE" resolve="u" />
                         </node>
                         <node concept="3TrcHB" id="7mG7sQPpmto" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -260,7 +260,7 @@
                     <node concept="TSZUe" id="7mG7sQPpnMx" role="2OqNvi">
                       <node concept="2OqwBi" id="7mG7sQPpnZH" role="25WWJ7">
                         <node concept="37vLTw" id="7mG7sQPpnQF" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7mG7sQPplJp" resolve="u" />
+                          <ref role="3cqZAo" node="4z0AnX817lE" resolve="u" />
                         </node>
                         <node concept="3TrcHB" id="7mG7sQPpo9i" role="2OqNvi">
                           <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
@@ -270,9 +270,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="7mG7sQPplJp" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817lE" role="1bW2Oz">
                 <property role="TrG5h" value="u" />
-                <node concept="2jxLKc" id="7mG7sQPplJq" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817lF" role="1tU5fm" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/org.iets3.core.users.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/org.iets3.core.users.mpl
index f730225ae1..bb1443894a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.core.users/org.iets3.core.users.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.core.users/org.iets3.core.users.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
     <dependency reexport="false">498d89d2-c2e9-11e2-ad49-6cf049e62fe5(MPS.IDEA)</dependency>
@@ -21,7 +20,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/behavior.mps
index 20e53fb343..2cec746e5d 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/behavior.mps
@@ -106,7 +106,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -121,7 +121,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -202,7 +202,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/constraints.mps
index 5f460ff169..f69cf32d66 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/constraints.mps
@@ -32,7 +32,7 @@
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
       <concept id="1068581242875" name="jetbrains.mps.baseLanguage.structure.PlusExpression" flags="nn" index="3cpWs3" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/editor.mps
index 7de6fa633e..4cbba55354 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/editor.mps
@@ -74,7 +74,7 @@
       </concept>
       <concept id="1186414860679" name="jetbrains.mps.lang.editor.structure.EditableStyleClassItem" flags="ln" index="VPxyj" />
       <concept id="1186414928363" name="jetbrains.mps.lang.editor.structure.SelectableStyleSheetItem" flags="ln" index="VPM3Z" />
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
@@ -91,7 +91,7 @@
       <concept id="7597241200646296617" name="jetbrains.mps.lang.editor.structure.NavigatableNodeStyleClassItem" flags="ln" index="3k4GqR">
         <child id="7597241200646296618" name="functionNode" index="3k4GqO" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="1088185857835" name="jetbrains.mps.lang.editor.structure.InlineEditorComponent" flags="ig" index="1sVBvm" />
@@ -115,7 +115,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -219,7 +219,7 @@
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -233,7 +233,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -248,7 +248,7 @@
         <child id="8945098465480008160" name="transformationText" index="ZWbT9" />
       </concept>
       <concept id="8945098465480383073" name="com.mbeddr.mpsutil.grammarcells.structure.OptionalCell_TransformationText" flags="ig" index="ZYGn8" />
-      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ng" index="1djCvD">
+      <concept id="848437706375087728" name="com.mbeddr.mpsutil.grammarcells.structure.ICanHaveDescriptionText" flags="ngI" index="1djCvD">
         <child id="848437706375087729" name="descriptionText" index="1djCvC" />
       </concept>
     </language>
@@ -285,7 +285,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/intentions.mps
index 470dd4a86f..bd176806f7 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/intentions.mps
@@ -70,7 +70,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -113,7 +113,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/structure.mps
index 832a293666..5391615205 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/structure.mps
@@ -53,7 +53,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/typesystem.mps b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/typesystem.mps
index 4205e84ef5..3b6c7fb892 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/typesystem.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/models/typesystem.mps
@@ -58,7 +58,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -69,6 +69,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -151,7 +152,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -163,7 +164,6 @@
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
     </language>
   </registry>
@@ -330,7 +330,7 @@
                             </node>
                             <node concept="2OqwBi" id="6zaFu4oSicV" role="3uHU7B">
                               <node concept="37vLTw" id="6zaFu4oSi7w" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6zaFu4oSeLk" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817lH" resolve="it" />
                               </node>
                               <node concept="2yIwOk" id="6zaFu4oSipx" role="2OqNvi" />
                             </node>
@@ -338,7 +338,7 @@
                           <node concept="3clFbC" id="6zaFu4oSh4b" role="3uHU7B">
                             <node concept="2OqwBi" id="6zaFu4oSeRh" role="3uHU7B">
                               <node concept="37vLTw" id="6zaFu4oSeO8" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6zaFu4oSeLk" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817lH" resolve="it" />
                               </node>
                               <node concept="3TrEf2" id="6zaFu4oSgVw" role="2OqNvi">
                                 <ref role="3Tt5mk" to="tuf9:6zaFu4oS5HU" resolve="term" />
@@ -351,9 +351,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6zaFu4oSeLk" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817lH" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6zaFu4oSeLl" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817lI" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/org.iets3.glossary.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/org.iets3.glossary.mpl
index 2076e9bbd3..a05970012e 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.glossary/org.iets3.glossary.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.glossary/org.iets3.glossary.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">2374bc90-7e37-41f1-a9c4-c2e35194c36a(com.mbeddr.doc)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/generator/template/main@generator.mps b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/generator/template/main@generator.mps
index 8158dea46d..2850749b2b 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/generator/template/main@generator.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/generator/template/main@generator.mps
@@ -94,7 +94,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -110,7 +110,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -170,7 +170,7 @@
         <child id="1167340453568" name="reductionMappingRule" index="3aUrZf" />
       </concept>
       <concept id="1095672379244" name="jetbrains.mps.lang.generator.structure.TemplateFragment" flags="ng" index="raruj" />
-      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ng" index="v9R3L">
+      <concept id="1722980698497626400" name="jetbrains.mps.lang.generator.structure.ITemplateCall" flags="ngI" index="v9R3L">
         <reference id="1722980698497626483" name="template" index="v9R2y" />
       </concept>
       <concept id="1167169188348" name="jetbrains.mps.lang.generator.structure.TemplateFunctionParameter_sourceNode" flags="nn" index="30H73N" />
@@ -212,6 +212,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -312,7 +313,7 @@
         <property id="1757699476691236116" name="role_DebugInfo" index="2qtEX8" />
         <property id="1341860900488019036" name="linkId" index="P3scX" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -342,7 +343,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1240325842691" name="jetbrains.mps.baseLanguage.collections.structure.AsSequenceOperation" flags="nn" index="39bAoz" />
@@ -770,7 +770,7 @@
                                     <node concept="3clFbF" id="AbdozcquA7" role="3cqZAp">
                                       <node concept="2OqwBi" id="AbdozcquA8" role="3clFbG">
                                         <node concept="37vLTw" id="AbdozcquA9" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="AbdozcquAb" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817lL" resolve="it" />
                                         </node>
                                         <node concept="2qgKlT" id="2dXqWF9F$gg" role="2OqNvi">
                                           <ref role="37wK5l" to="7f1d:3X9rC2XzJij" resolve="getModules" />
@@ -778,9 +778,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="AbdozcquAb" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817lL" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="AbdozcquAc" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817lM" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -813,7 +813,7 @@
                                       </node>
                                       <node concept="2OqwBi" id="AbdozcquAr" role="3uHU7B">
                                         <node concept="37vLTw" id="AbdozcquAs" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="AbdozcquAw" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817lN" resolve="it" />
                                         </node>
                                         <node concept="2Xjw5R" id="AbdozcquAt" role="2OqNvi">
                                           <node concept="1xMEDy" id="AbdozcquAu" role="1xVPHs">
@@ -826,9 +826,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="AbdozcquAw" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817lN" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="AbdozcquAx" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817lO" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -900,7 +900,7 @@
                                     <node concept="3clFbF" id="3vNUe1zefqr" role="3cqZAp">
                                       <node concept="2OqwBi" id="3vNUe1zefqs" role="3clFbG">
                                         <node concept="37vLTw" id="3vNUe1zefqt" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="3vNUe1zefqv" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817lP" resolve="it" />
                                         </node>
                                         <node concept="2qgKlT" id="3vNUe1zefqu" role="2OqNvi">
                                           <ref role="37wK5l" to="7f1d:3X9rC2XzJij" resolve="getModules" />
@@ -908,9 +908,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="3vNUe1zefqv" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817lP" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="3vNUe1zefqw" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817lQ" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -946,7 +946,7 @@
                                         </node>
                                         <node concept="2OqwBi" id="3vNUe1zekik" role="3uHU7B">
                                           <node concept="37vLTw" id="3vNUe1zejSX" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="3vNUe1zejJ9" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817lR" resolve="it" />
                                           </node>
                                           <node concept="2Xjw5R" id="3vNUe1zelhJ" role="2OqNvi">
                                             <node concept="1xMEDy" id="3vNUe1zelhL" role="1xVPHs">
@@ -959,9 +959,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="3vNUe1zejJ9" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817lR" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="3vNUe1zejJa" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817lS" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -1148,14 +1148,14 @@
                                             <ref role="37wK5l" to="7f1d:3X9rC2XzJij" resolve="getModules" />
                                           </node>
                                           <node concept="37vLTw" id="4hDF5Qkghpr" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="4hDF5Qkghps" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817lT" resolve="it" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="4hDF5Qkghps" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX817lT" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="4hDF5Qkghpt" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX817lU" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -1287,7 +1287,7 @@
                                             <ref role="2pJxcJ" to="kdzh:QkG2t1bKwB" resolve="path" />
                                             <node concept="WxPPo" id="uuJ7IpZtxf" role="28ntcv">
                                               <node concept="37vLTw" id="4hDF5Qkghq_" role="WxPPp">
-                                                <ref role="3cqZAo" node="4hDF5QkghqA" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817lV" resolve="it" />
                                               </node>
                                             </node>
                                           </node>
@@ -1295,9 +1295,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="4hDF5QkghqA" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817lV" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="4hDF5QkghqB" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817lW" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/behavior.mps
index cc46eb1bff..d2dc2ea927 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/behavior.mps
@@ -115,7 +115,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -132,7 +132,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -196,7 +196,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/structure.mps
index 7cb0ab11be..dd9ad09651 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/models/structure.mps
@@ -37,7 +37,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/org.iets3.opensource.build.gentests.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/org.iets3.opensource.build.gentests.mpl
index 3867ab91f4..c847f0fe45 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/org.iets3.opensource.build.gentests.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.opensource.build.gentests/org.iets3.opensource.build.gentests.mpl
@@ -35,7 +35,7 @@
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
         <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+        <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
         <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
         <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
         <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -75,7 +75,6 @@
       <mapping-priorities />
     </generator>
   </generators>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">798100da-4f0a-421a-b991-71f8c50ce5d2(jetbrains.mps.build)</dependency>
     <dependency reexport="false">3600cb0a-44dd-4a5b-9968-22924406419e(jetbrains.mps.build.mps.tests)</dependency>
@@ -88,7 +87,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/behavior.mps b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/behavior.mps
index b19469c337..ac7e9b8c30 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/behavior.mps
@@ -102,7 +102,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -113,7 +113,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -182,7 +182,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/constraints.mps b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/constraints.mps
index b9b91824c1..4933055c01 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/constraints.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/constraints.mps
@@ -45,7 +45,7 @@
       <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
         <child id="1068581517676" name="expression" index="3cqZAk" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/editor.mps b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/editor.mps
index 790dcd5925..dc12220027 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/editor.mps
@@ -117,15 +117,15 @@
       <concept id="1186415722038" name="jetbrains.mps.lang.editor.structure.FontSizeStyleClassItem" flags="ln" index="VSNWy">
         <child id="1221064706952" name="query" index="1d8cEk" />
       </concept>
-      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ng" index="2Z_bC8">
+      <concept id="1630016958697718209" name="jetbrains.mps.lang.editor.structure.IMenuReference_Default" flags="ngI" index="2Z_bC8">
         <reference id="1630016958698373342" name="concept" index="2ZyFGn" />
       </concept>
-      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ng" index="2ZABuq">
+      <concept id="1630016958697344083" name="jetbrains.mps.lang.editor.structure.IMenu_Concept" flags="ngI" index="2ZABuq">
         <reference id="6591946374543067572" name="conceptDeclaration" index="aqKnT" />
         <child id="5991739802479788259" name="type" index="22hAXT" />
       </concept>
       <concept id="1630016958697286851" name="jetbrains.mps.lang.editor.structure.QueryFunctionParameter_parameterObject" flags="ng" index="2ZBlsa" />
-      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ng" index="2ZBHr6">
+      <concept id="1630016958697057551" name="jetbrains.mps.lang.editor.structure.IMenuPartParameterized" flags="ngI" index="2ZBHr6">
         <child id="1630016958697057552" name="parameterType" index="2ZBHrp" />
       </concept>
       <concept id="1233758997495" name="jetbrains.mps.lang.editor.structure.PunctuationLeftStyleClassItem" flags="ln" index="11L4FC" />
@@ -136,10 +136,10 @@
       <concept id="1088013125922" name="jetbrains.mps.lang.editor.structure.CellModel_RefCell" flags="sg" stub="730538219795941030" index="1iCGBv">
         <child id="1088186146602" name="editorComponent" index="1sWHZn" />
       </concept>
-      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ng" index="1joUw2">
+      <concept id="7291101478617127464" name="jetbrains.mps.lang.editor.structure.IExtensibleTransformationMenuPart" flags="ngI" index="1joUw2">
         <child id="8954657570916349207" name="features" index="2jZA2a" />
       </concept>
-      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ng" index="1k5N5V">
+      <concept id="1381004262292414836" name="jetbrains.mps.lang.editor.structure.ICellStyle" flags="ngI" index="1k5N5V">
         <reference id="1381004262292426837" name="parentStyleClass" index="1k5W1q" />
       </concept>
       <concept id="7580468736840446506" name="jetbrains.mps.lang.editor.structure.ConceptFunctionParameter_model" flags="nn" index="1rpKSd" />
@@ -176,7 +176,7 @@
         <property id="1073389577007" name="text" index="3F0ifm" />
       </concept>
       <concept id="1073389658414" name="jetbrains.mps.lang.editor.structure.CellModel_Property" flags="sg" stub="730538219796134133" index="3F0A7n" />
-      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ng" index="3F0Thp">
+      <concept id="1219418625346" name="jetbrains.mps.lang.editor.structure.IStyleContainer" flags="ngI" index="3F0Thp">
         <child id="1219418656006" name="styleItem" index="3F10Kt" />
       </concept>
       <concept id="1073389882823" name="jetbrains.mps.lang.editor.structure.CellModel_RefNode" flags="sg" stub="730538219795960754" index="3F1sOY" />
@@ -192,7 +192,7 @@
       <concept id="1225900081164" name="jetbrains.mps.lang.editor.structure.CellModel_ReadOnlyModelAccessor" flags="sg" stub="3708815482283559694" index="1HlG4h">
         <child id="1225900141900" name="modelAccessor" index="1HlULh" />
       </concept>
-      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ng" index="3INCJE">
+      <concept id="5624877018228267058" name="jetbrains.mps.lang.editor.structure.ITransformationMenu" flags="ngI" index="3INCJE">
         <child id="1638911550608572412" name="sections" index="IW6Ez" />
       </concept>
       <concept id="5624877018228264944" name="jetbrains.mps.lang.editor.structure.TransformationMenuContribution" flags="ng" index="3INDKC">
@@ -311,7 +311,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -329,7 +329,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -353,6 +353,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -394,7 +395,7 @@
       <concept id="1397920687864683158" name="de.slisson.mps.tables.structure.Table" flags="ng" index="2rfBfz">
         <child id="1397920687864865354" name="cells" index="2rf8GZ" />
       </concept>
-      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ng" index="1g0I81">
+      <concept id="5662204344885760731" name="de.slisson.mps.tables.structure.IStylable" flags="ngI" index="1g0I81">
         <child id="5662204344887343006" name="style" index="1geGt4" />
       </concept>
       <concept id="5662204344885763446" name="de.slisson.mps.tables.structure.TableStyle" flags="ng" index="1g0IQG" />
@@ -477,7 +478,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -504,7 +505,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -2919,7 +2919,7 @@
                                     <node concept="2OqwBi" id="5Zn2KFQRMec" role="3fr31v">
                                       <node concept="2OqwBi" id="5Zn2KFQRMed" role="2Oq$k0">
                                         <node concept="37vLTw" id="5Zn2KFQRMee" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="5Zn2KFQRMel" resolve="cc" />
+                                          <ref role="3cqZAo" node="4z0AnX817lX" resolve="cc" />
                                         </node>
                                         <node concept="3n3YKJ" id="5Zn2KFQRMef" role="2OqNvi" />
                                       </node>
@@ -2929,7 +2929,7 @@
                                   <node concept="3fqX7Q" id="5Zn2KFQRMeh" role="3uHU7B">
                                     <node concept="2OqwBi" id="5Zn2KFQRMei" role="3fr31v">
                                       <node concept="37vLTw" id="5Zn2KFQRMej" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="5Zn2KFQRMel" resolve="cc" />
+                                        <ref role="3cqZAo" node="4z0AnX817lX" resolve="cc" />
                                       </node>
                                       <node concept="liA8E" id="5Zn2KFQRMek" role="2OqNvi">
                                         <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -2939,9 +2939,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5Zn2KFQRMel" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817lX" role="1bW2Oz">
                               <property role="TrG5h" value="cc" />
-                              <node concept="2jxLKc" id="5Zn2KFQRMem" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817lY" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -3227,7 +3227,7 @@
                             <node concept="3fqX7Q" id="1T$QQLd4dsH" role="3clFbG">
                               <node concept="2OqwBi" id="1T$QQLd4dsI" role="3fr31v">
                                 <node concept="37vLTw" id="1T$QQLd4dsJ" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1T$QQLd4dsL" resolve="tag" />
+                                  <ref role="3cqZAo" node="4z0AnX817lZ" resolve="tag" />
                                 </node>
                                 <node concept="liA8E" id="1T$QQLd4dsK" role="2OqNvi">
                                   <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -3236,9 +3236,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="1T$QQLd4dsL" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817lZ" role="1bW2Oz">
                           <property role="TrG5h" value="tag" />
-                          <node concept="2jxLKc" id="1T$QQLd4dsM" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817m0" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -3252,14 +3252,14 @@
                             <ref role="37wK5l" node="hzYhIjiQKh" resolve="checkTag" />
                             <node concept="7Obwk" id="73kHms33$2H" role="37wK5m" />
                             <node concept="37vLTw" id="1T$QQLd4kmr" role="37wK5m">
-                              <ref role="3cqZAo" node="1T$QQLd4dsU" resolve="tag" />
+                              <ref role="3cqZAo" node="4z0AnX817m1" resolve="tag" />
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="1T$QQLd4dsU" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817m1" role="1bW2Oz">
                         <property role="TrG5h" value="tag" />
-                        <node concept="2jxLKc" id="1T$QQLd4dsV" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817m2" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3511,7 +3511,7 @@
                             <node concept="2OqwBi" id="5Zn2KFQQNO8" role="3fr31v">
                               <node concept="2OqwBi" id="5Zn2KFQQNO9" role="2Oq$k0">
                                 <node concept="37vLTw" id="5Zn2KFQQNOa" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5Zn2KFQQNOh" resolve="cc" />
+                                  <ref role="3cqZAo" node="4z0AnX817m3" resolve="cc" />
                                 </node>
                                 <node concept="3n3YKJ" id="5Zn2KFQQNOb" role="2OqNvi" />
                               </node>
@@ -3521,7 +3521,7 @@
                           <node concept="3fqX7Q" id="5Zn2KFQQNOd" role="3uHU7B">
                             <node concept="2OqwBi" id="5Zn2KFQQNOe" role="3fr31v">
                               <node concept="37vLTw" id="5Zn2KFQQNOf" role="2Oq$k0">
-                                <ref role="3cqZAo" node="5Zn2KFQQNOh" resolve="cc" />
+                                <ref role="3cqZAo" node="4z0AnX817m3" resolve="cc" />
                               </node>
                               <node concept="liA8E" id="5Zn2KFQQNOg" role="2OqNvi">
                                 <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -3531,9 +3531,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5Zn2KFQQNOh" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817m3" role="1bW2Oz">
                       <property role="TrG5h" value="cc" />
-                      <node concept="2jxLKc" id="5Zn2KFQQNOi" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817m4" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -3670,16 +3670,16 @@
                         </node>
                         <node concept="2OqwBi" id="1T$QQLd3_2S" role="3uHU7B">
                           <node concept="37vLTw" id="1T$QQLd3_2T" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1T$QQLd3_2V" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817m5" resolve="it" />
                           </node>
                           <node concept="2yIwOk" id="1T$QQLd3_2U" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1T$QQLd3_2V" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817m5" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="1T$QQLd3_2W" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817m6" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/intentions.mps b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/intentions.mps
index 6d15d9cd74..41702f6ebc 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/intentions.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/intentions.mps
@@ -92,7 +92,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -184,7 +184,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/structure.mps b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/structure.mps
index 3aec67e0be..93af67f3c1 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/models/structure.mps
@@ -56,7 +56,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/org.iets3.req.core.mpl b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/org.iets3.req.core.mpl
index 37e9a679f8..8278862a72 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.core/org.iets3.req.core.mpl
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.core/org.iets3.req.core.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">2374bc90-7e37-41f1-a9c4-c2e35194c36a(com.mbeddr.doc)</dependency>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
@@ -34,7 +33,7 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/models/org/iets3/req/plugin/plugin.mps b/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/models/org/iets3/req/plugin/plugin.mps
index 60ef07f9ba..633b7d602a 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/models/org/iets3/req/plugin/plugin.mps
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/models/org/iets3/req/plugin/plugin.mps
@@ -3,12 +3,12 @@
   <persistence version="9" />
   <languages>
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="-1" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="677f00fb-4488-405e-9885-abb75d472fd1" name="com.mbeddr.mpsutil.contextactions" version="-1" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="1fc20ffe-f35b-4791-a0b7-d706bad5c49a" name="com.mbeddr.mpsutil.refactoring" version="-1" />
     <use id="1f1b4a81-113d-4b88-9b67-2bae3e4f8128" name="com.mbeddr.mpsutil.projectview" version="-1" />
     <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="-1" />
@@ -50,6 +50,7 @@
       </concept>
       <concept id="1203071646776" name="jetbrains.mps.lang.plugin.structure.ActionDeclaration" flags="ng" index="sE7Ow">
         <property id="1205250923097" name="caption" index="2uzpH1" />
+        <property id="4692598989365753297" name="updateInBackground" index="1rBW0U" />
         <child id="1203083196627" name="updateBlock" index="tmbBb" />
         <child id="1203083461638" name="executeFunction" index="tncku" />
         <child id="1217413222820" name="parameter" index="1NuT2Z" />
@@ -71,7 +72,7 @@
       <concept id="1205681243813" name="jetbrains.mps.lang.plugin.structure.IsApplicableBlock" flags="in" index="2ScWuX" />
       <concept id="1206092561075" name="jetbrains.mps.lang.plugin.structure.ActionParameterReferenceOperation" flags="nn" index="3gHZIF" />
       <concept id="5538333046911348654" name="jetbrains.mps.lang.plugin.structure.RequiredCondition" flags="ng" index="1oajcY" />
-      <concept id="1217413147516" name="jetbrains.mps.lang.plugin.structure.ActionParameter" flags="ng" index="1NuADB">
+      <concept id="1217413147516" name="jetbrains.mps.lang.plugin.structure.ActionParameter" flags="ngI" index="1NuADB">
         <child id="5538333046911298738" name="condition" index="1oa70y" />
       </concept>
     </language>
@@ -152,7 +153,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -170,7 +171,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -184,6 +185,7 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -219,7 +221,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
     </language>
@@ -292,7 +294,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -364,7 +366,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -1143,7 +1144,7 @@
                             <node concept="2OqwBi" id="5Zn2KFQQNO8" role="3fr31v">
                               <node concept="2OqwBi" id="5Zn2KFQQNO9" role="2Oq$k0">
                                 <node concept="37vLTw" id="5Zn2KFQQNOa" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5Zn2KFQQNOh" resolve="cc" />
+                                  <ref role="3cqZAo" node="4z0AnX817mq" resolve="cc" />
                                 </node>
                                 <node concept="3n3YKJ" id="5Zn2KFQQNOb" role="2OqNvi" />
                               </node>
@@ -1153,7 +1154,7 @@
                           <node concept="3fqX7Q" id="5Zn2KFQQNOd" role="3uHU7B">
                             <node concept="2OqwBi" id="5Zn2KFQQNOe" role="3fr31v">
                               <node concept="37vLTw" id="5Zn2KFQQNOf" role="2Oq$k0">
-                                <ref role="3cqZAo" node="5Zn2KFQQNOh" resolve="cc" />
+                                <ref role="3cqZAo" node="4z0AnX817mq" resolve="cc" />
                               </node>
                               <node concept="liA8E" id="5Zn2KFQQNOg" role="2OqNvi">
                                 <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -1163,9 +1164,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="5Zn2KFQQNOh" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817mq" role="1bW2Oz">
                       <property role="TrG5h" value="cc" />
-                      <node concept="2jxLKc" id="5Zn2KFQQNOi" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817mr" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1272,7 +1273,7 @@
                         <node concept="2OqwBi" id="5Zn2KFQRMec" role="3fr31v">
                           <node concept="2OqwBi" id="5Zn2KFQRMed" role="2Oq$k0">
                             <node concept="37vLTw" id="5Zn2KFQRMee" role="2Oq$k0">
-                              <ref role="3cqZAo" node="5Zn2KFQRMel" resolve="cc" />
+                              <ref role="3cqZAo" node="4z0AnX817ms" resolve="cc" />
                             </node>
                             <node concept="3n3YKJ" id="5Zn2KFQRMef" role="2OqNvi" />
                           </node>
@@ -1282,7 +1283,7 @@
                       <node concept="3fqX7Q" id="5Zn2KFQRMeh" role="3uHU7B">
                         <node concept="2OqwBi" id="5Zn2KFQRMei" role="3fr31v">
                           <node concept="37vLTw" id="5Zn2KFQRMej" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5Zn2KFQRMel" resolve="cc" />
+                            <ref role="3cqZAo" node="4z0AnX817ms" resolve="cc" />
                           </node>
                           <node concept="liA8E" id="5Zn2KFQRMek" role="2OqNvi">
                             <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -1292,9 +1293,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5Zn2KFQRMel" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817ms" role="1bW2Oz">
                   <property role="TrG5h" value="cc" />
-                  <node concept="2jxLKc" id="5Zn2KFQRMem" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mt" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1363,7 +1364,7 @@
                       <node concept="3fqX7Q" id="1T$QQLd4dsH" role="3clFbG">
                         <node concept="2OqwBi" id="1T$QQLd4dsI" role="3fr31v">
                           <node concept="37vLTw" id="1T$QQLd4dsJ" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1T$QQLd4dsL" resolve="tag" />
+                            <ref role="3cqZAo" node="4z0AnX817mu" resolve="tag" />
                           </node>
                           <node concept="liA8E" id="1T$QQLd4dsK" role="2OqNvi">
                             <ref role="37wK5l" to="c17a:~SAbstractConcept.isAbstract()" resolve="isAbstract" />
@@ -1372,9 +1373,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1T$QQLd4dsL" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817mu" role="1bW2Oz">
                     <property role="TrG5h" value="tag" />
-                    <node concept="2jxLKc" id="1T$QQLd4dsM" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817mv" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1389,14 +1390,14 @@
                         <ref role="3cqZAo" node="34Lz1M9DCrr" resolve="ctx" />
                       </node>
                       <node concept="37vLTw" id="1T$QQLd4kmr" role="37wK5m">
-                        <ref role="3cqZAo" node="1T$QQLd4dsU" resolve="tag" />
+                        <ref role="3cqZAo" node="4z0AnX817mw" resolve="tag" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1T$QQLd4dsU" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mw" role="1bW2Oz">
                   <property role="TrG5h" value="tag" />
-                  <node concept="2jxLKc" id="1T$QQLd4dsV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mx" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1505,16 +1506,16 @@
                         </node>
                         <node concept="2OqwBi" id="1T$QQLd3_2S" role="3uHU7B">
                           <node concept="37vLTw" id="1T$QQLd3_2T" role="2Oq$k0">
-                            <ref role="3cqZAo" node="1T$QQLd3_2V" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817my" resolve="it" />
                           </node>
                           <node concept="2yIwOk" id="1T$QQLd3_2U" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="1T$QQLd3_2V" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817my" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="1T$QQLd3_2W" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817mz" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1672,7 +1673,7 @@
                     <node concept="3fqX7Q" id="1MpR5BkUuFZ" role="3clFbG">
                       <node concept="2OqwBi" id="1MpR5BkUuG0" role="3fr31v">
                         <node concept="37vLTw" id="1MpR5BkUuG1" role="2Oq$k0">
-                          <ref role="3cqZAo" node="1MpR5BkUuG4" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817m$" resolve="it" />
                         </node>
                         <node concept="1mIQ4w" id="1MpR5BkUuG2" role="2OqNvi">
                           <node concept="chp4Y" id="1MpR5BkUuG3" role="cj9EA">
@@ -1683,9 +1684,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1MpR5BkUuG4" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817m$" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1MpR5BkUuG5" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817m_" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1710,7 +1711,7 @@
                   <node concept="3fqX7Q" id="1MpR5BkUpof" role="3clFbG">
                     <node concept="2OqwBi" id="1MpR5BkUpsg" role="3fr31v">
                       <node concept="37vLTw" id="1MpR5BkUpom" role="2Oq$k0">
-                        <ref role="3cqZAo" node="1MpR5BkUtEf" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mA" resolve="it" />
                       </node>
                       <node concept="1mIQ4w" id="1MpR5BkUpC3" role="2OqNvi">
                         <node concept="chp4Y" id="1MpR5BkUpGA" role="cj9EA">
@@ -1721,9 +1722,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="1MpR5BkUtEf" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817mA" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="1MpR5BkUtEg" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817mB" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -1819,7 +1820,7 @@
                   <node concept="3clFbF" id="5Jew25TJ3VJ" role="3cqZAp">
                     <node concept="2OqwBi" id="5Jew25TJ42F" role="3clFbG">
                       <node concept="37vLTw" id="5Jew25TJ3VI" role="2Oq$k0">
-                        <ref role="3cqZAo" node="5Jew25TJ3Qg" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mC" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="5Jew25TJ4ho" role="2OqNvi">
                         <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -1827,9 +1828,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="5Jew25TJ3Qg" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mC" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="5Jew25TJ3Qh" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mD" role="1tU5fm" />
                 </node>
               </node>
               <node concept="1nlBCl" id="5Jew25TJ3Qi" role="2S7zOq">
@@ -1880,6 +1881,7 @@
     <property role="TrG5h" value="AddChildRequirement" />
     <property role="2uzpH1" value="New Child Requirement" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="2S4$dB" id="1ognOHj$di$" role="1NuT2Z">
       <property role="TrG5h" value="req" />
       <node concept="3Tm6S6" id="1ognOHj$di_" role="1B3o_S" />
@@ -1913,6 +1915,7 @@
     <property role="TrG5h" value="NewReqActionInModule" />
     <property role="2uzpH1" value="New Requirement" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="2S4$dB" id="1ognOHj$IOq" role="1NuT2Z">
       <property role="TrG5h" value="c" />
       <node concept="3Tm6S6" id="1ognOHj$IOr" role="1B3o_S" />
@@ -1999,6 +2002,7 @@
     <property role="TrG5h" value="AddSiblingRequirement" />
     <property role="2uzpH1" value="New Sibling Requirement" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="2S4$dB" id="6LfBX8Yg5OQ" role="1NuT2Z">
       <property role="TrG5h" value="req" />
       <node concept="3Tm6S6" id="6LfBX8Yg5OR" role="1B3o_S" />
@@ -2032,6 +2036,7 @@
     <property role="TrG5h" value="DeleteRequirement" />
     <property role="2uzpH1" value="Delete" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="2S4$dB" id="6LfBX8Yg60S" role="1NuT2Z">
       <property role="TrG5h" value="req" />
       <node concept="3Tm6S6" id="6LfBX8Yg60T" role="1B3o_S" />
@@ -2063,6 +2068,7 @@
     <property role="TrG5h" value="NewModuleOnModel" />
     <property role="2uzpH1" value="New Requirements Document" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="6LfBX8YheG2" role="tncku">
       <node concept="3clFbS" id="6LfBX8YheG3" role="2VODD2">
         <node concept="3clFbF" id="6LfBX8Yhl$I" role="3cqZAp">
diff --git a/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/org.iets3.req.plugin.msd b/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/org.iets3.req.plugin.msd
index 788b94970f..7c65b5c98f 100644
--- a/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/org.iets3.req.plugin.msd
+++ b/code/languages/org.iets3.opensource/languages/org.iets3.req.plugin/org.iets3.req.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.req.plugin" uuid="755feabd-670f-4f86-a6c7-fdff5ea88f8a" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.req.plugin" uuid="755feabd-670f-4f86-a6c7-fdff5ea88f8a" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">a3c6f642-41b7-44cb-951b-463b8427a245(org.iets3.req.core)</dependency>
     <dependency reexport="false">92d2ea16-5a42-4fdf-a676-c7604efe3504(de.slisson.mps.richtext)</dependency>
@@ -33,10 +32,10 @@
     <language slang="l:774bf8a0-62e5-41e1-af63-f4812e60e48b:jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/behavior.mps b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/behavior.mps
index d5cf7d0f1b..55f6ae8d3f 100644
--- a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/behavior.mps
@@ -75,7 +75,7 @@
       <concept id="1068580320020" name="jetbrains.mps.baseLanguage.structure.IntegerConstant" flags="nn" index="3cmrfG">
         <property id="1068580320021" name="value" index="3cmrfH" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -118,7 +118,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/editor.mps b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/editor.mps
index 49e8a309f4..29a9f9fb0b 100644
--- a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/editor.mps
+++ b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/editor.mps
@@ -59,7 +59,7 @@
         <child id="1068581517665" name="statement" index="3cqZAp" />
       </concept>
       <concept id="1068581242875" name="jetbrains.mps.baseLanguage.structure.PlusExpression" flags="nn" index="3cpWs3" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1081773326031" name="jetbrains.mps.baseLanguage.structure.BinaryOperation" flags="nn" index="3uHJSO">
@@ -68,6 +68,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -78,7 +79,7 @@
       <concept id="7453996997717780434" name="jetbrains.mps.lang.smodel.structure.Node_GetSConceptOperation" flags="nn" index="2yIwOk" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -87,7 +88,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
     </language>
     <language id="b1ab8c10-c118-4755-bf2a-cebab35cf533" name="jetbrains.mps.lang.editor.tooltips">
@@ -125,7 +125,7 @@
                             <node concept="3clFbF" id="48ZWgAGrgZN" role="3cqZAp">
                               <node concept="2OqwBi" id="48ZWgAGrhiK" role="3clFbG">
                                 <node concept="37vLTw" id="48ZWgAGrgZM" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="48ZWgAGrgHd" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817m8" resolve="it" />
                                 </node>
                                 <node concept="liA8E" id="48ZWgAGris4" role="2OqNvi">
                                   <ref role="37wK5l" to="c17a:~SAbstractConcept.getName()" resolve="getName" />
@@ -133,9 +133,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="48ZWgAGrgHd" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817m8" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="48ZWgAGrgHe" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817m9" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
diff --git a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/structure.mps b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/structure.mps
index 50ad5bfbed..8ceaf47a3a 100644
--- a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/structure.mps
+++ b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/models/structure.mps
@@ -26,7 +26,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/test.iest3.component.attribute.mpl b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/test.iest3.component.attribute.mpl
index 80c8614bdc..8323b46139 100644
--- a/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/test.iest3.component.attribute.mpl
+++ b/code/languages/org.iets3.opensource/languages/test.iest3.component.attribute/test.iest3.component.attribute.mpl
@@ -11,7 +11,6 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">f0fd486f-8577-43e9-b671-3d118449c6e7(org.iets3.components.core)</dependency>
   </dependencies>
@@ -19,7 +18,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.behavior.mps b/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.behavior.mps
index 08f7aa9a35..28e8db1a3c 100644
--- a/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.behavior.mps
+++ b/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.behavior.mps
@@ -41,13 +41,13 @@
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.structure.mps b/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.structure.mps
index d6eec20676..6aef4f7e4f 100644
--- a/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.structure.mps
+++ b/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/models/test.ts.expr.os.validNameConcept.structure.mps
@@ -30,7 +30,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/test.ts.expr.os.validNameConcept.mpl b/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/test.ts.expr.os.validNameConcept.mpl
index 2c677f0f37..5c9451c7bf 100644
--- a/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/test.ts.expr.os.validNameConcept.mpl
+++ b/code/languages/org.iets3.opensource/languages/test.ts.expr.os.validNameConcept/test.ts.expr.os.validNameConcept.mpl
@@ -11,12 +11,11 @@
     </facet>
   </facets>
   <accessoryModels />
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/models/plugin.mps
index d1b8875074..db4aac4a77 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -41,7 +41,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/org.iets3.components.core.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/org.iets3.components.core.interpreter.msd
index fb0a133a2b..6d15ff3953 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/org.iets3.components.core.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.interpreter/org.iets3.components.core.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.components.core.interpreter" uuid="0de469bf-07e3-4a54-981b-2edf83928944" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.components.core.interpreter" uuid="0de469bf-07e3-4a54-981b-2edf83928944" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">f0fd486f-8577-43e9-b671-3d118449c6e7(org.iets3.components.core)</dependency>
   </dependencies>
@@ -18,7 +17,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/models/adapter.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/models/adapter.mps
index aaa24c0e3e..4414af5046 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/models/adapter.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/models/adapter.mps
@@ -67,7 +67,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -78,12 +78,12 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/org.iets3.components.core.sandbox.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/org.iets3.components.core.sandbox.msd
index ab97f0ed68..7202bfaa9c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/org.iets3.components.core.sandbox.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.components.core.sandbox/org.iets3.components.core.sandbox.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.components.core.sandbox" uuid="956f8ebc-3dd5-4222-b9e9-a48fab8a7f7a" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.components.core.sandbox" uuid="956f8ebc-3dd5-4222-b9e9-a48fab8a7f7a" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -22,7 +21,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/models/plugin.mps
index d2eb5361ca..2564560048 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
@@ -104,7 +104,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -194,7 +194,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/org.iets3.core.expr.adt.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/org.iets3.core.expr.adt.interpreter.msd
index 44d5a0f2c5..34e406babb 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/org.iets3.core.expr.adt.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.adt.interpreter/org.iets3.core.expr.adt.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.adt.interpreter" uuid="79d5345e-e919-477c-b448-d9d5f36e2f92" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.adt.interpreter" uuid="79d5345e-e919-477c-b448-d9d5f36e2f92" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -29,7 +28,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:63650c59-16c8-498a-99c8-005c7ee9515d:jetbrains.mps.lang.access" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.collections.stubs/org.iets3.core.expr.base.collections.stubs.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.collections.stubs/org.iets3.core.expr.base.collections.stubs.msd
index 4a98fb660e..d8dde92422 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.collections.stubs/org.iets3.core.expr.base.collections.stubs.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.collections.stubs/org.iets3.core.expr.base.collections.stubs.msd
@@ -1,19 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.base.collections.stubs" uuid="b76a0f63-5959-456b-993a-c796cc0d0c13" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.base.collections.stubs" uuid="b76a0f63-5959-456b-993a-c796cc0d0c13" moduleVersion="0">
   <models>
-    <modelRoot contentPath="${module}/lib" type="java_classes">
+    <modelRoot type="java_classes" contentPath="${module}/lib">
       <sourceRoot location="pcollections.jar" />
     </modelRoot>
   </models>
   <facets>
-    <facet type="java" compile="mps" classes="mps" ext="no">
+    <facet type="java" compile="mps" classes="mps" ext="yes">
       <classes generated="true" path="${module}/classes_gen" />
+      <library location="${module}/lib/pcollections.jar" />
     </facet>
   </facets>
-  <stubModelEntries>
-    <stubModelEntry path="${module}/lib/pcollections.jar" />
-  </stubModelEntries>
-  <sourcePath />
   <dependencies>
     <dependency reexport="true">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
   </dependencies>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/models/plugin.mps
index 52250371e0..295c0aaa8b 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/models/plugin.mps
@@ -92,7 +92,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -154,7 +154,7 @@
         <child id="1154542793668" name="componentType" index="3g7fb8" />
         <child id="1154542803372" name="initValue" index="3g7hyw" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -175,7 +175,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -233,6 +233,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -283,7 +284,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -312,7 +313,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1171391069720" name="jetbrains.mps.baseLanguage.collections.structure.GetIndexOfOperation" flags="nn" index="2WmjW8" />
@@ -2474,14 +2474,14 @@
                         <node concept="3clFbF" id="6el_OoxbupW" role="3cqZAp">
                           <node concept="qpA2v" id="6el_OoxbupX" role="3clFbG">
                             <node concept="37vLTw" id="6el_OoxbupY" role="3SLO0q">
-                              <ref role="3cqZAo" node="6el_OoxbupZ" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817mE" resolve="it" />
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="6el_OoxbupZ" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817mE" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="6el_Ooxbuq0" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817mF" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
@@ -3361,15 +3361,15 @@
                                 </node>
                                 <node concept="X8dFx" id="ijyib_hJzO" role="2OqNvi">
                                   <node concept="37vLTw" id="ijyib_hJKA" role="25WWJ7">
-                                    <ref role="3cqZAo" node="ijyib_hHy3" resolve="it" />
+                                    <ref role="3cqZAo" node="79LXaAamMtD" resolve="it" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="ijyib_hHy3" role="1bW2Oz">
+                          <node concept="gl6BB" id="79LXaAamMtD" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="ijyib_hHy4" role="1tU5fm" />
+                            <node concept="2jxLKc" id="79LXaAamMtE" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -3897,7 +3897,7 @@
                         <ref role="1Pybhc" to="xfg9:2Qbt$1tTQaH" resolve="PTF" />
                         <node concept="2OqwBi" id="30MddjY0uts" role="37wK5m">
                           <node concept="37vLTw" id="30MddjY0utt" role="2Oq$k0">
-                            <ref role="3cqZAo" node="30MddjY0utv" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817mG" resolve="it" />
                           </node>
                           <node concept="3TrEf2" id="30MddjY0utu" role="2OqNvi">
                             <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpI" resolve="when" />
@@ -3907,9 +3907,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="30MddjY0utv" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mG" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="30MddjY0utw" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mH" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3940,7 +3940,7 @@
                           <ref role="37wK5l" to="xfg9:5ye9uPrx0ez" resolve="isOtherwiseLiteral" />
                           <node concept="2OqwBi" id="30MddjY0utI" role="37wK5m">
                             <node concept="37vLTw" id="30MddjY0utJ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="30MddjY0utL" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817mI" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="30MddjY0utK" role="2OqNvi">
                               <ref role="3Tt5mk" to="hm2y:6UxFDrx4dpI" resolve="when" />
@@ -3949,9 +3949,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="30MddjY0utL" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817mI" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="30MddjY0utM" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817mJ" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/org.iets3.core.expr.base.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/org.iets3.core.expr.base.interpreter.msd
index 84f232631f..cd23cc18a3 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/org.iets3.core.expr.base.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.interpreter/org.iets3.core.expr.base.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.base.interpreter" uuid="cf90f965-8554-4a16-aa0b-6387f27474ab" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.base.interpreter" uuid="cf90f965-8554-4a16-aa0b-6387f27474ab" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:817e4e70-961e-4a95-98a1-15e9f32231f1:jetbrains.mps.ide.httpsupport" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/models/runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/models/runtime.mps
index 69c09c5394..ea4eda0269 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/models/runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/models/runtime.mps
@@ -1,14 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)">
   <persistence version="9" />
-  <attribute name="doNotGenerate" value="false" />
   <languages>
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="2" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
-    <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
-    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
+    <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
+    <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
     <use id="c7fb639f-be78-4307-89b0-b5959c3fa8c8" name="jetbrains.mps.lang.text" version="0" />
   </languages>
   <imports>
@@ -20,10 +19,10 @@
     <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" />
     <import index="2ahs" ref="r:ea6cf71d-29d2-478d-8027-a9f4a4de53c4(com.mbeddr.mpsutil.interpreter.rt)" />
     <import index="ppzb" ref="r:5db517a0-f62d-4841-a421-11bb7269799d(org.iets3.core.expr.base.shared.runtime)" />
-    <import index="g51k" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.nodeEditor.cells(MPS.Editor/)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
     <import index="cj4x" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor(MPS.Editor/)" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
+    <import index="g51k" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.nodeEditor.cells(MPS.Editor/)" />
   </imports>
   <registry>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
@@ -249,6 +248,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
         <child id="1199542501692" name="parameterType" index="1ajw0F" />
@@ -343,7 +343,6 @@
       </concept>
       <concept id="1227008614712" name="jetbrains.mps.baseLanguage.collections.structure.LinkedListCreator" flags="nn" index="2Jqq0_" />
       <concept id="1227022179634" name="jetbrains.mps.baseLanguage.collections.structure.AddLastElementOperation" flags="nn" index="2Ke9KJ" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -425,7 +424,7 @@
                         <node concept="3clFbF" id="2Qbt$1tTUc0" role="3cqZAp">
                           <node concept="2OqwBi" id="2Qbt$1tTUc1" role="3clFbG">
                             <node concept="37vLTw" id="2Qbt$1tTUc2" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2Qbt$1tTUc4" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817mK" resolve="it" />
                             </node>
                             <node concept="liA8E" id="2Qbt$1tTUc3" role="2OqNvi">
                               <ref role="37wK5l" to="oq0c:2Qbt$1tSwXM" resolve="getPriorityLevel" />
@@ -433,9 +432,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2Qbt$1tTUc4" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817mK" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2Qbt$1tTUc5" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817mL" role="1tU5fm" />
                       </node>
                     </node>
                     <node concept="1nlBCl" id="3p6$WoEzrLB" role="2S7zOq">
@@ -1673,7 +1672,7 @@
                           <node concept="3clFbF" id="12O03AaWMHH" role="3cqZAp">
                             <node concept="2OqwBi" id="12O03AaWMHI" role="3clFbG">
                               <node concept="37vLTw" id="12O03AaWMHJ" role="2Oq$k0">
-                                <ref role="3cqZAo" node="12O03AaWMHL" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1b4$p" resolve="it" />
                               </node>
                               <node concept="liA8E" id="12O03AaWMHK" role="2OqNvi">
                                 <ref role="37wK5l" to="oq0c:12O03AaWLhs" resolve="getPriorityLevel" />
@@ -1681,9 +1680,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="12O03AaWMHL" role="1bW2Oz">
+                        <node concept="gl6BB" id="2FZhxW1b4$p" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="12O03AaWMHM" role="1tU5fm" />
+                          <node concept="2jxLKc" id="2FZhxW1b4$q" role="1tU5fm" />
                         </node>
                       </node>
                       <node concept="1nlBCl" id="12O03AaWMHN" role="2S7zOq">
@@ -2357,15 +2356,15 @@
                           <ref role="3uigEE" to="ppzb:3nVyItrYNyp" resolve="INixValue" />
                         </node>
                         <node concept="37vLTw" id="26cjRAD8YM1" role="2ZW6bz">
-                          <ref role="3cqZAo" node="26cjRAD8RWp" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817mM" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="26cjRAD8RWp" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mM" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="26cjRAD8RWq" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mN" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2393,14 +2392,14 @@
                         <ref role="3uigEE" to="ppzb:3nVyItrYNyp" resolve="INixValue" />
                       </node>
                       <node concept="37vLTw" id="26cjRACFnDl" role="2ZW6bz">
-                        <ref role="3cqZAo" node="26cjRACFnx3" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mO" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="26cjRACFnx3" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mO" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="26cjRACFnx4" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mP" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2428,14 +2427,14 @@
                         <ref role="3uigEE" to="ppzb:3nVyItrYNyp" resolve="INixValue" />
                       </node>
                       <node concept="37vLTw" id="26cjRADa0ye" role="2ZW6bz">
-                        <ref role="3cqZAo" node="26cjRADa0yf" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mQ" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="26cjRADa0yf" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mQ" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="26cjRADa0yg" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mR" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2463,14 +2462,14 @@
                         <ref role="3uigEE" to="oq0c:UN2ftLWgA8" resolve="NoneValue" />
                       </node>
                       <node concept="37vLTw" id="26cjRACFqoi" role="2ZW6bz">
-                        <ref role="3cqZAo" node="26cjRACFqoj" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mS" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="26cjRACFqoj" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mS" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="26cjRACFqok" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mT" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2498,14 +2497,14 @@
                         <ref role="3uigEE" to="oq0c:UN2ftLWgA8" resolve="NoneValue" />
                       </node>
                       <node concept="37vLTw" id="26cjRACKu_p" role="2ZW6bz">
-                        <ref role="3cqZAo" node="26cjRACKu_q" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817mU" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="26cjRACKu_q" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817mU" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="26cjRACKu_r" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817mV" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3550,7 +3549,7 @@
                         <node concept="3clFbF" id="26cjRACVUHG" role="3cqZAp">
                           <node concept="2OqwBi" id="26cjRACVUHH" role="3clFbG">
                             <node concept="37vLTw" id="26cjRACVUHI" role="2Oq$k0">
-                              <ref role="3cqZAo" node="26cjRACVUHK" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817mW" resolve="it" />
                             </node>
                             <node concept="liA8E" id="26cjRACVUHJ" role="2OqNvi">
                               <ref role="37wK5l" to="oq0c:26cjRACVPUy" resolve="getPriorityLevel" />
@@ -3558,9 +3557,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="26cjRACVUHK" role="1bW2Oz">
+                      <node concept="gl6BB" id="4z0AnX817mW" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="26cjRACVUHL" role="1tU5fm" />
+                        <node concept="2jxLKc" id="4z0AnX817mX" role="1tU5fm" />
                       </node>
                     </node>
                     <node concept="1nlBCl" id="26cjRACVUHM" role="2S7zOq">
@@ -3631,6 +3630,18 @@
     <node concept="2tJIrI" id="26cjRACVUI9" role="jymVt" />
     <node concept="3Tm1VV" id="26cjRACVUN4" role="1B3o_S" />
   </node>
+  <node concept="3HP615" id="3ToB$MLORO4">
+    <property role="TrG5h" value="ICustomStringForValueInspector" />
+    <node concept="2tJIrI" id="3ToB$MLORP6" role="jymVt" />
+    <node concept="3clFb_" id="3ToB$MLORPt" role="jymVt">
+      <property role="TrG5h" value="valueInspectorString" />
+      <node concept="17QB3L" id="3ToB$MLORR7" role="3clF45" />
+      <node concept="3Tm1VV" id="3ToB$MLORPw" role="1B3o_S" />
+      <node concept="3clFbS" id="3ToB$MLORPx" role="3clF47" />
+    </node>
+    <node concept="2tJIrI" id="3ToB$MLORPe" role="jymVt" />
+    <node concept="3Tm1VV" id="3ToB$MLORO5" role="1B3o_S" />
+  </node>
   <node concept="312cEu" id="5$96D5xUD8p">
     <property role="TrG5h" value="HexPropertyAccessor" />
     <property role="3GE5qa" value="hex" />
@@ -5313,17 +5324,5 @@
     </node>
     <node concept="2tJIrI" id="5dSoB2LVCju" role="jymVt" />
   </node>
-  <node concept="3HP615" id="3ToB$MLORO4">
-    <property role="TrG5h" value="ICustomStringForValueInspector" />
-    <node concept="2tJIrI" id="3ToB$MLORP6" role="jymVt" />
-    <node concept="3clFb_" id="3ToB$MLORPt" role="jymVt">
-      <property role="TrG5h" value="valueInspectorString" />
-      <node concept="17QB3L" id="3ToB$MLORR7" role="3clF45" />
-      <node concept="3Tm1VV" id="3ToB$MLORPw" role="1B3o_S" />
-      <node concept="3clFbS" id="3ToB$MLORPx" role="3clF47" />
-    </node>
-    <node concept="2tJIrI" id="3ToB$MLORPe" role="jymVt" />
-    <node concept="3Tm1VV" id="3ToB$MLORO5" role="1B3o_S" />
-  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/org.iets3.core.expr.base.runtime.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/org.iets3.core.expr.base.runtime.msd
index 8b29604472..b170a44702 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/org.iets3.core.expr.base.runtime.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.runtime/org.iets3.core.expr.base.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.base.runtime" uuid="dbe08fb5-334d-4b64-86a0-622406fa0e87" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.base.runtime" uuid="dbe08fb5-334d-4b64-86a0-622406fa0e87" moduleVersion="0">
   <models>
     <modelRoot type="default" contentPath="${module}">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -19,7 +18,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:c0080a47-7e37-4558-bee9-9ae18e690549:jetbrains.mps.lang.extension" version="2" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/models/org.iets3.core.expr.base.shared.runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/models/org.iets3.core.expr.base.shared.runtime.mps
index 12cc8eee15..c964cc6a3a 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/models/org.iets3.core.expr.base.shared.runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/models/org.iets3.core.expr.base.shared.runtime.mps
@@ -122,7 +122,7 @@
       </concept>
       <concept id="1081506762703" name="jetbrains.mps.baseLanguage.structure.GreaterThanExpression" flags="nn" index="3eOSWO" />
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -140,7 +140,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615" />
@@ -170,7 +170,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/org.iets3.core.expr.base.shared.runtime.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/org.iets3.core.expr.base.shared.runtime.msd
index 5d1819ed91..20df990a6b 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/org.iets3.core.expr.base.shared.runtime.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.base.shared.runtime/org.iets3.core.expr.base.shared.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.base.shared.runtime" uuid="00ca1323-762b-4f39-ab5a-6a6bd602dc4b" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.base.shared.runtime" uuid="00ca1323-762b-4f39-ab5a-6a6bd602dc4b" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
   </dependencies>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/models/plugin.mps
index 88f1c47850..42be417945 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
@@ -145,7 +145,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -243,6 +243,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -287,7 +288,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -332,7 +333,6 @@
         <child id="1237721435808" name="initValue" index="HW$Y0" />
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1178286324487" name="jetbrains.mps.baseLanguage.collections.structure.SortDirection" flags="nn" index="1nlBCl" />
@@ -4180,24 +4180,24 @@
                                 <node concept="3clFbF" id="36hsHVfkcR7" role="3cqZAp">
                                   <node concept="2OqwBi" id="36hsHVfkd3J" role="3clFbG">
                                     <node concept="37vLTw" id="36hsHVfkcR6" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="36hsHVfkcEo" resolve="a" />
+                                      <ref role="3cqZAo" node="4z0AnX817mY" resolve="a" />
                                     </node>
                                     <node concept="liA8E" id="36hsHVfkdwB" role="2OqNvi">
                                       <ref role="37wK5l" to="wyt6:~Comparable.compareTo(java.lang.Object)" resolve="compareTo" />
                                       <node concept="37vLTw" id="36hsHVfke4a" role="37wK5m">
-                                        <ref role="3cqZAo" node="36hsHVfkcEq" resolve="b" />
+                                        <ref role="3cqZAo" node="4z0AnX817n0" resolve="b" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="36hsHVfkcEo" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817mY" role="1bW2Oz">
                                 <property role="TrG5h" value="a" />
-                                <node concept="2jxLKc" id="36hsHVfkcEp" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817mZ" role="1tU5fm" />
                               </node>
-                              <node concept="Rh6nW" id="36hsHVfkcEq" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817n0" role="1bW2Oz">
                                 <property role="TrG5h" value="b" />
-                                <node concept="2jxLKc" id="36hsHVfkcEr" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817n1" role="1tU5fm" />
                               </node>
                             </node>
                             <node concept="1nlBCl" id="36hsHVfkcEs" role="2Dq5b$">
@@ -4247,24 +4247,24 @@
                                   <node concept="3clFbF" id="36hsHVfke_N" role="3cqZAp">
                                     <node concept="2OqwBi" id="36hsHVfkeL2" role="3clFbG">
                                       <node concept="37vLTw" id="36hsHVfke_M" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="36hsHVfkepp" resolve="a" />
+                                        <ref role="3cqZAo" node="4z0AnX817n2" resolve="a" />
                                       </node>
                                       <node concept="liA8E" id="36hsHVfkf4a" role="2OqNvi">
                                         <ref role="37wK5l" to="wyt6:~Comparable.compareTo(java.lang.Object)" resolve="compareTo" />
                                         <node concept="37vLTw" id="36hsHVfkfBS" role="37wK5m">
-                                          <ref role="3cqZAo" node="36hsHVfkepr" resolve="b" />
+                                          <ref role="3cqZAo" node="4z0AnX817n4" resolve="b" />
                                         </node>
                                       </node>
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="36hsHVfkepp" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817n2" role="1bW2Oz">
                                   <property role="TrG5h" value="a" />
-                                  <node concept="2jxLKc" id="36hsHVfkepq" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817n3" role="1tU5fm" />
                                 </node>
-                                <node concept="Rh6nW" id="36hsHVfkepr" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817n4" role="1bW2Oz">
                                   <property role="TrG5h" value="b" />
-                                  <node concept="2jxLKc" id="36hsHVfkeps" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817n5" role="1tU5fm" />
                                 </node>
                               </node>
                               <node concept="1nlBCl" id="36hsHVfmg1U" role="2Dq5b$" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/org.iets3.core.expr.collections.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/org.iets3.core.expr.collections.interpreter.msd
index efcbee7987..88af206d15 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/org.iets3.core.expr.collections.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.interpreter/org.iets3.core.expr.collections.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.collections.interpreter" uuid="07f696b4-29e7-4878-aefb-39cac5e8c6cc" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.collections.interpreter" uuid="07f696b4-29e7-4878-aefb-39cac5e8c6cc" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">2f7e2e35-6e74-4c43-9fa5-2465d68f5996(org.iets3.core.expr.collections)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -28,7 +27,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/models/org.iets3.core.expr.collections.rt.rt.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/models/org.iets3.core.expr.collections.rt.rt.mps
index 89eadf3b15..cba1d6464c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/models/org.iets3.core.expr.collections.rt.rt.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/models/org.iets3.core.expr.collections.rt.rt.mps
@@ -31,7 +31,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -110,7 +110,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -131,7 +131,7 @@
         <reference id="1107535924139" name="classifier" index="3uigEE" />
         <child id="1109201940907" name="parameter" index="11_B2D" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -142,7 +142,7 @@
       <concept id="8064396509828172209" name="jetbrains.mps.baseLanguage.structure.UnaryMinus" flags="nn" index="1ZRNhn" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/org.iets3.core.expr.collections.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/org.iets3.core.expr.collections.rt.msd
index 218bf64f15..f3f17e0da6 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/org.iets3.core.expr.collections.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.collections.rt/org.iets3.core.expr.collections.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.collections.rt" uuid="272bf1ac-d70c-4dac-96a3-976884f641b8" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.collections.rt" uuid="272bf1ac-d70c-4dac-96a3-976884f641b8" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">b76a0f63-5959-456b-993a-c796cc0d0c13(org.iets3.core.expr.base.collections.stubs)</dependency>
@@ -19,7 +18,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/models/org.iets3.core.expr.data.interpreter.plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/models/org.iets3.core.expr.data.interpreter.plugin.mps
index 717becc04b..f64aceae94 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/models/org.iets3.core.expr.data.interpreter.plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/models/org.iets3.core.expr.data.interpreter.plugin.mps
@@ -62,7 +62,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -95,7 +95,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -138,6 +138,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -165,7 +166,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -176,7 +177,6 @@
       <concept id="540871147943773365" name="jetbrains.mps.baseLanguage.collections.structure.SingleArgumentSequenceOperation" flags="nn" index="25WWJ4">
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
@@ -281,7 +281,7 @@
                                   </node>
                                   <node concept="2OqwBi" id="7MYpJaZ8UQy" role="3uHU7B">
                                     <node concept="37vLTw" id="7MYpJaZ8UQz" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="7MYpJaZ8UQ_" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817n6" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="7MYpJaZ8UQ$" role="2OqNvi">
                                       <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -290,9 +290,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="7MYpJaZ8UQ_" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817n6" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="7MYpJaZ8UQA" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817n7" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -504,12 +504,12 @@
                                   <node concept="3clFbF" id="stdmzxqE62" role="3cqZAp">
                                     <node concept="1Ls8ON" id="stdmzxqE63" role="3clFbG">
                                       <node concept="37vLTw" id="stdmzxqE64" role="1Lso8e">
-                                        <ref role="3cqZAo" node="stdmzxqE6m" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817na" resolve="it" />
                                       </node>
                                       <node concept="2OqwBi" id="stdmzxqE65" role="1Lso8e">
                                         <node concept="2OqwBi" id="stdmzxqE66" role="2Oq$k0">
                                           <node concept="37vLTw" id="stdmzxqE67" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="stdmzxqE6m" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817na" resolve="it" />
                                           </node>
                                           <node concept="3Tsc0h" id="stdmzxqE68" role="2OqNvi">
                                             <ref role="3TtcxE" to="e9k1:cPLa7FpcRm" resolve="cells" />
@@ -525,7 +525,7 @@
                                                   </node>
                                                   <node concept="2OqwBi" id="stdmzxqE6h" role="3uHU7B">
                                                     <node concept="37vLTw" id="stdmzxqE6i" role="2Oq$k0">
-                                                      <ref role="3cqZAo" node="stdmzxqE6k" resolve="it" />
+                                                      <ref role="3cqZAo" node="4z0AnX817n8" resolve="it" />
                                                     </node>
                                                     <node concept="3TrEf2" id="stdmzxqE6j" role="2OqNvi">
                                                       <ref role="3Tt5mk" to="e9k1:cPLa7FpdsY" resolve="col" />
@@ -534,9 +534,9 @@
                                                 </node>
                                               </node>
                                             </node>
-                                            <node concept="Rh6nW" id="stdmzxqE6k" role="1bW2Oz">
+                                            <node concept="gl6BB" id="4z0AnX817n8" role="1bW2Oz">
                                               <property role="TrG5h" value="it" />
-                                              <node concept="2jxLKc" id="stdmzxqE6l" role="1tU5fm" />
+                                              <node concept="2jxLKc" id="4z0AnX817n9" role="1tU5fm" />
                                             </node>
                                           </node>
                                         </node>
@@ -544,9 +544,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="stdmzxqE6m" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817na" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="stdmzxqE6n" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817nb" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -565,7 +565,7 @@
                                             <property role="3cmrfH" value="1" />
                                           </node>
                                           <node concept="37vLTw" id="5s2FNgbz1nn" role="1LFl5Q">
-                                            <ref role="3cqZAo" node="stdmzxqE6$" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817nc" resolve="it" />
                                           </node>
                                         </node>
                                         <node concept="3TrEf2" id="5s2FNgbz1no" role="2OqNvi">
@@ -579,9 +579,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="stdmzxqE6$" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817nc" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="stdmzxqE6_" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817nd" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/org.iets3.core.expr.data.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/org.iets3.core.expr.data.interpreter.msd
index 98e572c3e2..caf596d08b 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/org.iets3.core.expr.data.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.data.interpreter/org.iets3.core.expr.data.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.data.interpreter" uuid="21d0de5b-f228-4080-9857-7315c7a77001" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.data.interpreter" uuid="21d0de5b-f228-4080-9857-7315c7a77001" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">b25b8ad1-4d3d-4e45-8c78-72091b39fdda(org.iets3.core.expr.data)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/models/plugin.mps
index 59e0c4049e..a31e170c0c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -84,7 +84,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -103,7 +103,7 @@
       <concept id="8276990574909231788" name="jetbrains.mps.baseLanguage.structure.FinallyClause" flags="ng" index="1wplmZ">
         <child id="8276990574909234106" name="finallyBody" index="1wplMD" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="5351203823916750322" name="jetbrains.mps.baseLanguage.structure.TryUniversalStatement" flags="nn" index="3J1_TO">
@@ -145,6 +145,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -175,7 +176,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -201,7 +202,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
@@ -371,7 +371,7 @@
                                 <node concept="qpA2v" id="2vkvJYT7J3M" role="3clFbG">
                                   <node concept="2OqwBi" id="2vkvJYT7Jj7" role="3SLO0q">
                                     <node concept="37vLTw" id="2vkvJYT7J9E" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="2vkvJYT7H4s" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817ne" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="2vkvJYT7J$9" role="2OqNvi">
                                       <ref role="3Tt5mk" to="gx5r:2vkvJYT213x" resolve="value" />
@@ -380,9 +380,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="2vkvJYT7H4s" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817ne" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="2vkvJYT7H4t" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817nf" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -830,7 +830,7 @@
                       <node concept="3clFbF" id="2vkvJYTf3Z9" role="3cqZAp">
                         <node concept="2OqwBi" id="2vkvJYTf3Za" role="3clFbG">
                           <node concept="37vLTw" id="2vkvJYTf3Zb" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2vkvJYTf3Ze" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817ng" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="2vkvJYTf3Zc" role="2OqNvi">
                             <ref role="37wK5l" to="b4m9:5Q9FzcI4YUK" resolve="connectsToOutsidePort" />
@@ -841,9 +841,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2vkvJYTf3Ze" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817ng" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="2vkvJYTf3Zf" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817nh" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -991,7 +991,7 @@
                             <node concept="3clFbF" id="2vkvJYTf_OK" role="3cqZAp">
                               <node concept="2OqwBi" id="2vkvJYTf_OL" role="3clFbG">
                                 <node concept="37vLTw" id="2vkvJYTf_OM" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2vkvJYTf_OQ" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817ni" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="2vkvJYTf_ON" role="2OqNvi">
                                   <ref role="37wK5l" to="b4m9:5Q9FzcI6bZ6" resolve="connectsToInsideInPort" />
@@ -1005,9 +1005,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="2vkvJYTf_OQ" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817ni" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="2vkvJYTf_OR" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817nj" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1094,7 +1094,7 @@
                                 </node>
                                 <node concept="2OqwBi" id="PkV_vHz5MT" role="3uHU7B">
                                   <node concept="37vLTw" id="PkV_vHz5MU" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="PkV_vHz5MW" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817nk" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="PkV_vHz5MV" role="2OqNvi">
                                     <ref role="3Tt5mk" to="gx5r:2vkvJYSQEwb" resolve="param" />
@@ -1103,9 +1103,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="PkV_vHz5MW" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817nk" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="PkV_vHz5MX" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817nl" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/org.iets3.core.expr.dataflow.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/org.iets3.core.expr.dataflow.interpreter.msd
index 281dbbb338..7431a31bdb 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/org.iets3.core.expr.dataflow.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.dataflow.interpreter/org.iets3.core.expr.dataflow.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.dataflow.interpreter" uuid="3a79aca0-f4b1-40f1-a3e9-259162afa77b" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.dataflow.interpreter" uuid="3a79aca0-f4b1-40f1-a3e9-259162afa77b" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">8ba65567-1c8a-4983-beb8-0482324d7e44(org.iets3.core.expr.lambda.interpreter)</dependency>
@@ -20,7 +19,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/models/plugin.mps
index 4e5d68dde4..4732bcb1e3 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -100,7 +100,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -166,6 +166,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <property id="890797661671409019" name="forceMultiLine" index="3yWfEV" />
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
@@ -185,7 +186,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -197,7 +198,6 @@
       <concept id="1204796164442" name="jetbrains.mps.baseLanguage.collections.structure.InternalSequenceOperation" flags="nn" index="23sCx2">
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
         <child id="1197932505799" name="map" index="3ElQJh" />
@@ -3422,14 +3422,14 @@
                     <node concept="3clFbF" id="64dkh69VXjd" role="3cqZAp">
                       <node concept="qpA2v" id="64dkh69VXjb" role="3clFbG">
                         <node concept="37vLTw" id="64dkh69VXji" role="3SLO0q">
-                          <ref role="3cqZAo" node="64dkh69VX5G" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817nm" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="64dkh69VX5G" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817nm" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="64dkh69VX5H" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817nn" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -3459,14 +3459,14 @@
                     <node concept="3clFbF" id="64dkh69WfI7" role="3cqZAp">
                       <node concept="qpA2v" id="64dkh69WfI8" role="3clFbG">
                         <node concept="37vLTw" id="64dkh69WfI9" role="3SLO0q">
-                          <ref role="3cqZAo" node="64dkh69WfIa" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817no" resolve="it" />
                         </node>
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="64dkh69WfIa" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817no" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="64dkh69WfIb" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817np" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/org.iets3.core.expr.datetime.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/org.iets3.core.expr.datetime.interpreter.msd
index 3e88dc9bb9..2fac8e5dde 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/org.iets3.core.expr.datetime.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.interpreter/org.iets3.core.expr.datetime.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.datetime.interpreter" uuid="356f24c7-748b-463e-a9e4-7973abbf5b8f" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.datetime.interpreter" uuid="356f24c7-748b-463e-a9e4-7973abbf5b8f" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/models/org.iets3.core.expr.datetime.runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/models/org.iets3.core.expr.datetime.runtime.mps
index 7a1ee9dc0d..b1a1d1d44a 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/models/org.iets3.core.expr.datetime.runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/models/org.iets3.core.expr.datetime.runtime.mps
@@ -2,9 +2,9 @@
 <model ref="r:a9ac3767-b241-4aa4-a973-d04bb5ce184c(org.iets3.core.expr.datetime.runtime)">
   <persistence version="9" />
   <languages>
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
   </languages>
   <imports>
     <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" />
@@ -33,7 +33,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -156,7 +156,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -178,7 +178,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -207,7 +207,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/org.iets3.core.expr.datetime.runtime.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/org.iets3.core.expr.datetime.runtime.msd
index 8ec774952b..7b69d2bfe9 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/org.iets3.core.expr.datetime.runtime.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.datetime.runtime/org.iets3.core.expr.datetime.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.datetime.runtime" uuid="957f018c-4561-4081-9ad3-b8618bf1160d" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.datetime.runtime" uuid="957f018c-4561-4081-9ad3-b8618bf1160d" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="true">00ca1323-762b-4f39-ab5a-6a6bd602dc4b(org.iets3.core.expr.base.shared.runtime)</dependency>
@@ -18,7 +17,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/models/plugin.mps
index ee478612a2..44f7d84c23 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/models/plugin.mps
@@ -97,7 +97,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -108,13 +108,14 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -163,7 +164,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -185,7 +186,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
@@ -221,7 +221,7 @@
                   <node concept="3fqX7Q" id="4vZ65iK0oId" role="3clFbG">
                     <node concept="2OqwBi" id="4vZ65iK0oIf" role="3fr31v">
                       <node concept="37vLTw" id="4vZ65iK0oIg" role="2Oq$k0">
-                        <ref role="3cqZAo" node="4vZ65iK0mXq" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817nq" resolve="it" />
                       </node>
                       <node concept="2qgKlT" id="4vZ65iK0oIh" role="2OqNvi">
                         <ref role="37wK5l" to="srqo:2m0pXWMLk6" resolve="hideBookmark" />
@@ -230,9 +230,9 @@
                   </node>
                 </node>
               </node>
-              <node concept="Rh6nW" id="4vZ65iK0mXq" role="1bW2Oz">
+              <node concept="gl6BB" id="4z0AnX817nq" role="1bW2Oz">
                 <property role="TrG5h" value="it" />
-                <node concept="2jxLKc" id="4vZ65iK0mXr" role="1tU5fm" />
+                <node concept="2jxLKc" id="4z0AnX817nr" role="1tU5fm" />
               </node>
             </node>
           </node>
@@ -244,21 +244,21 @@
                 <node concept="1Ls8ON" id="4vZ65iK1mzm" role="3clFbG">
                   <node concept="2OqwBi" id="4vZ65iK1kT7" role="1Lso8e">
                     <node concept="37vLTw" id="4vZ65iK1kGF" role="2Oq$k0">
-                      <ref role="3cqZAo" node="4vZ65iK1ktI" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817ns" resolve="it" />
                     </node>
                     <node concept="2qgKlT" id="4vZ65iK1loQ" role="2OqNvi">
                       <ref role="37wK5l" to="srqo:4vZ65iK1hOY" resolve="getBookmarkedNode" />
                     </node>
                   </node>
                   <node concept="37vLTw" id="4vZ65iK1mKY" role="1Lso8e">
-                    <ref role="3cqZAo" node="4vZ65iK1ktI" resolve="it" />
+                    <ref role="3cqZAo" node="4z0AnX817ns" resolve="it" />
                   </node>
                 </node>
               </node>
             </node>
-            <node concept="Rh6nW" id="4vZ65iK1ktI" role="1bW2Oz">
+            <node concept="gl6BB" id="4z0AnX817ns" role="1bW2Oz">
               <property role="TrG5h" value="it" />
-              <node concept="2jxLKc" id="4vZ65iK1ktJ" role="1tU5fm" />
+              <node concept="2jxLKc" id="4z0AnX817nt" role="1tU5fm" />
             </node>
           </node>
         </node>
@@ -405,9 +405,6 @@
           </node>
         </node>
         <node concept="2Gpval" id="3Q$zA1CA23K" role="3cqZAp">
-          <node concept="2GrKxI" id="3Q$zA1CA23M" role="2Gsz3X">
-            <property role="TrG5h" value="module" />
-          </node>
           <node concept="3clFbS" id="3Q$zA1CA23Q" role="2LFqv$">
             <node concept="2Gpval" id="3Q$zA1CAaxI" role="3cqZAp">
               <node concept="2GrKxI" id="3Q$zA1CAaxJ" role="2Gsz3X">
@@ -449,6 +446,9 @@
               </node>
             </node>
           </node>
+          <node concept="2GrKxI" id="3Q$zA1CA23M" role="2Gsz3X">
+            <property role="TrG5h" value="module" />
+          </node>
           <node concept="2OqwBi" id="2m0pXWN7Gq" role="2GsD0m">
             <node concept="37vLTw" id="2m0pXWNbNf" role="2Oq$k0">
               <ref role="3cqZAo" node="2m0pXWN9O5" resolve="project" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/org.iets3.core.expr.doc.plugin.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/org.iets3.core.expr.doc.plugin.msd
index bc1435d367..85233db79e 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/org.iets3.core.expr.doc.plugin.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.doc.plugin/org.iets3.core.expr.doc.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.doc.plugin" uuid="e29ad049-74f8-4f02-9561-62d7477f822a" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.doc.plugin" uuid="e29ad049-74f8-4f02-9561-62d7477f822a" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -22,11 +21,11 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/genplan.mps
index 17210fbdcc..5d55e5b50a 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/genplan.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
   </languages>
   <imports />
   <registry>
@@ -17,7 +17,6 @@
       <concept id="1820634577908471810" name="jetbrains.mps.lang.generator.plan.structure.Transform" flags="ng" index="2VgMA2">
         <property id="2209292798354050154" name="individualStepPerGenerator" index="1s431M" />
         <child id="1152961914448142326" name="entries" index="2Qf7GQ" />
-        <child id="2944629966652439181" name="languages" index="1t_9vn" />
       </concept>
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
@@ -27,7 +26,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -35,63 +34,91 @@
   <node concept="2VgMpV" id="6FvSwHlc89Q">
     <property role="TrG5h" value="Java_genplan" />
     <node concept="2VgMA2" id="pogkgseUJX" role="2VgMA7">
-      <node concept="2V$Bhx" id="5Jw72wd6f6i" role="1t_9vn">
-        <property role="2V$B1T" value="15d858db-2d21-4ae9-90c4-f595086d0bdf" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.util" />
+      <node concept="2Qf6Nf" id="4z0AnX816YJ" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="5Jw72wd6f6i" role="2Qf6Ng">
+          <property role="2V$B1T" value="15d858db-2d21-4ae9-90c4-f595086d0bdf" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.util" />
+        </node>
       </node>
     </node>
     <node concept="2VgMA2" id="7bZFIimhGaU" role="2VgMA7">
-      <node concept="2V$Bhx" id="DHMrP91qoC" role="1t_9vn">
-        <property role="2V$B1T" value="e75207bb-7b13-40bd-b80b-c8fe625c4ee2" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.tests" />
+      <node concept="2Qf6Nf" id="4z0AnX816YK" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="DHMrP91qoC" role="2Qf6Ng">
+          <property role="2V$B1T" value="e75207bb-7b13-40bd-b80b-c8fe625c4ee2" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.tests" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="1Ds3skywDIo" role="1t_9vn">
-        <property role="2V$B1T" value="ddeeec5e-aa31-4c44-bc40-319cd452626e" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.toplevel" />
+      <node concept="2Qf6Nf" id="4z0AnX816YL" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="1Ds3skywDIo" role="2Qf6Ng">
+          <property role="2V$B1T" value="ddeeec5e-aa31-4c44-bc40-319cd452626e" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.toplevel" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="DHMrP91qoA" role="1t_9vn">
-        <property role="2V$B1T" value="30254c5b-f87e-4bb3-a60a-77a7ec6ed411" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.base" />
+      <node concept="2Qf6Nf" id="4z0AnX816YM" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="DHMrP91qoA" role="2Qf6Ng">
+          <property role="2V$B1T" value="30254c5b-f87e-4bb3-a60a-77a7ec6ed411" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.base" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="DHMrP91qoE" role="1t_9vn">
-        <property role="2V$B1T" value="5a0b0b9c-ca67-4d27-9caa-ec974d9cfa40" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.simpleTypes" />
+      <node concept="2Qf6Nf" id="4z0AnX816YN" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="DHMrP91qoE" role="2Qf6Ng">
+          <property role="2V$B1T" value="5a0b0b9c-ca67-4d27-9caa-ec974d9cfa40" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.simpleTypes" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="3haX89g2uED" role="1t_9vn">
-        <property role="2V$B1T" value="cc59a077-028a-42b0-ad86-6a1d71258691" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.datetime" />
+      <node concept="2Qf6Nf" id="4z0AnX816YO" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="3haX89g2uED" role="2Qf6Ng">
+          <property role="2V$B1T" value="cc59a077-028a-42b0-ad86-6a1d71258691" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.datetime" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="6wzrxL2VOrj" role="1t_9vn">
-        <property role="2V$B1T" value="98560bc9-b823-4181-83c6-33c39e2f5e9b" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.data" />
+      <node concept="2Qf6Nf" id="4z0AnX816YP" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="6wzrxL2VOrj" role="2Qf6Ng">
+          <property role="2V$B1T" value="98560bc9-b823-4181-83c6-33c39e2f5e9b" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.data" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="5CiP6OGfMcK" role="1t_9vn">
-        <property role="2V$B1T" value="4453335f-7c63-4874-b3b1-ece8c37e6d9b" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.temporal" />
+      <node concept="2Qf6Nf" id="4z0AnX816YQ" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="5CiP6OGfMcK" role="2Qf6Ng">
+          <property role="2V$B1T" value="4453335f-7c63-4874-b3b1-ece8c37e6d9b" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.temporal" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="5LerK4rlVSC" role="1t_9vn">
-        <property role="2V$B1T" value="752cf1d3-84d1-4f2b-bbf5-4ef076a62ec7" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.messages" />
+      <node concept="2Qf6Nf" id="4z0AnX816YR" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="5LerK4rlVSC" role="2Qf6Ng">
+          <property role="2V$B1T" value="752cf1d3-84d1-4f2b-bbf5-4ef076a62ec7" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.messages" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="Tm7SWq5JtX" role="1t_9vn">
-        <property role="2V$B1T" value="f9bb00ab-1f7e-40ab-9ec0-b11e02d84d0f" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.stringvalidation" />
+      <node concept="2Qf6Nf" id="4z0AnX816YS" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="Tm7SWq5JtX" role="2Qf6Ng">
+          <property role="2V$B1T" value="f9bb00ab-1f7e-40ab-9ec0-b11e02d84d0f" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.stringvalidation" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="lH$PuhTIAz" role="1t_9vn">
-        <property role="2V$B1T" value="f2abf2a6-552e-4906-ab58-930f9a79aff4" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.contracts" />
+      <node concept="2Qf6Nf" id="4z0AnX816YT" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="lH$PuhTIAz" role="2Qf6Ng">
+          <property role="2V$B1T" value="f2abf2a6-552e-4906-ab58-930f9a79aff4" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.contracts" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="6ii4I_AaKi7" role="1t_9vn">
-        <property role="2V$B1T" value="fd392034-7849-419d-9071-12563d152375" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.closures" />
+      <node concept="2Qf6Nf" id="4z0AnX816YU" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="6ii4I_AaKi7" role="2Qf6Ng">
+          <property role="2V$B1T" value="fd392034-7849-419d-9071-12563d152375" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.closures" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="4bh_m841Xu2" role="1t_9vn">
-        <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
+      <node concept="2Qf6Nf" id="4z0AnX816YV" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="4bh_m841Xu2" role="2Qf6Ng">
+          <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="1URTIF$uG6y" role="1t_9vn">
-        <property role="2V$B1T" value="f61473f9-130f-42f6-b98d-6c438812c2f6" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.unitTest" />
+      <node concept="2Qf6Nf" id="4z0AnX816YW" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="1URTIF$uG6y" role="2Qf6Ng">
+          <property role="2V$B1T" value="f61473f9-130f-42f6-b98d-6c438812c2f6" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.unitTest" />
+        </node>
       </node>
     </node>
     <node concept="2VgMA2" id="6m3HP9nDSZG" role="2VgMA7">
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.interpreter_genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.interpreter_genplan.mps
index 887e0e2983..1096e43d77 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.interpreter_genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.interpreter_genplan.mps
@@ -2,17 +2,20 @@
 <model ref="r:78ab8770-8b1b-4bd5-b5b0-b1a31a568bff(org.iets3.core.expr.genjava.advanced.genplan.interpreter_genplan)">
   <persistence version="9" />
   <languages>
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
   </languages>
   <imports />
   <registry>
     <language id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan">
+      <concept id="1152961914448136207" name="jetbrains.mps.lang.generator.plan.structure.LanguageEntry" flags="ng" index="2Qf6Nf">
+        <child id="1152961914448136208" name="language" index="2Qf6Ng" />
+      </concept>
       <concept id="1820634577908471803" name="jetbrains.mps.lang.generator.plan.structure.Plan" flags="ng" index="2VgMpV">
         <child id="1820634577908471815" name="steps" index="2VgMA7" />
       </concept>
       <concept id="1820634577908471810" name="jetbrains.mps.lang.generator.plan.structure.Transform" flags="ng" index="2VgMA2">
-        <child id="2944629966652439181" name="languages" index="1t_9vn" />
+        <child id="1152961914448142326" name="entries" index="2Qf7GQ" />
       </concept>
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
@@ -22,7 +25,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -30,125 +33,185 @@
   <node concept="2VgMpV" id="j5CxBK9FkN">
     <property role="TrG5h" value="Interpreter_genplan" />
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+      <node concept="2Qf6Nf" id="4z0AnX816Zj" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1u" role="2Qf6Ng">
+          <property role="2V$B1T" value="289fb12b-7f53-4ef7-bc2e-1ed2c6a7c998" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.datetime" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zk" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1v" role="2Qf6Ng">
+          <property role="2V$B1T" value="db8bd035-3f51-41d8-8fed-954c202d18be" />
+          <property role="2V$B1Q" value="org.iets3.analysis.base" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zl" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1w" role="2Qf6Ng">
+          <property role="2V$B1T" value="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" />
+          <property role="2V$B1Q" value="org.iets3.core.base" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zm" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1x" role="2Qf6Ng">
+          <property role="2V$B1T" value="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.base" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zn" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1y" role="2Qf6Ng">
+          <property role="2V$B1T" value="9464fa06-5ab9-409b-9274-64ab29588457" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.lambda" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zo" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1z" role="2Qf6Ng">
+          <property role="2V$B1T" value="f3eafff0-30d2-46d6-9150-f0f3b880ce27" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.path" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zp" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBK9H1$" role="2Qf6Ng">
+          <property role="2V$B1T" value="6b277d9a-d52d-416f-a209-1919bd737f50" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.simpleTypes" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816Zq" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="j5CxBKgAhX" role="2Qf6Ng">
+          <property role="2V$B1T" value="4621d3e3-b8a3-4bbe-b7ac-234b6e2d1d68" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.temporal" />
+        </node>
       </node>
     </node>
   </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.java_interpreter_genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.java_interpreter_genplan.mps
index ce71563458..1f6e562292 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.java_interpreter_genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/models/org.iets3.core.expr.genjava.advanced.genplan.java_interpreter_genplan.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
   </languages>
   <imports>
     <import index="csu1" ref="r:78ab8770-8b1b-4bd5-b5b0-b1a31a568bff(org.iets3.core.expr.genjava.advanced.genplan.interpreter_genplan)" />
@@ -22,7 +22,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/org.iets3.core.expr.genjava.advanced.genplan.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/org.iets3.core.expr.genjava.advanced.genplan.msd
index 8d68cdf0d7..cd373a686d 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/org.iets3.core.expr.genjava.advanced.genplan.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.advanced.genplan/org.iets3.core.expr.genjava.advanced.genplan.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.advanced.genplan" uuid="a37d732b-a361-4dba-bc6f-f8e645007559" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.advanced.genplan" uuid="a37d732b-a361-4dba-bc6f-f8e645007559" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,13 +10,12 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
-    <language slang="l:7ab1a6fa-0a11-4b95-9e48-75f363d6cb00:jetbrains.mps.lang.generator.plan" version="1" />
+    <language slang="l:7ab1a6fa-0a11-4b95-9e48-75f363d6cb00:jetbrains.mps.lang.generator.plan" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/models/rt.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/models/rt.mps
index c8b392e8ec..0ba9919b74 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/models/rt.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/models/rt.mps
@@ -27,7 +27,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -141,7 +141,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -165,7 +165,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615" />
@@ -180,7 +180,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -417,6 +417,9 @@
         <ref role="3uigEE" to="vj64:4NeJNX_xLh$" resolve="Message" />
       </node>
     </node>
+    <node concept="3uibUv" id="10wUh3OyTyI" role="1zkMxy">
+      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
+    </node>
     <node concept="2tJIrI" id="7MNmnelLwYE" role="jymVt" />
     <node concept="3clFb_" id="7MNmnelLwYG" role="jymVt">
       <property role="TrG5h" value="equals" />
@@ -588,9 +591,6 @@
       <node concept="3Tm1VV" id="7MNmnelLyAr" role="1B3o_S" />
       <node concept="10Oyi0" id="7MNmnelLyAs" role="3clF45" />
     </node>
-    <node concept="3uibUv" id="10wUh3OyTyI" role="1zkMxy">
-      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
-    </node>
   </node>
   <node concept="312cEu" id="2VjxpU_Tpwv">
     <property role="TrG5h" value="AlternativesException" />
@@ -714,6 +714,9 @@
     </node>
     <node concept="3Tm1VV" id="2VjxpU_Tpxm" role="1B3o_S" />
     <node concept="2tJIrI" id="2VjxpU_Tpxn" role="jymVt" />
+    <node concept="3uibUv" id="2VjxpU_Tpxo" role="1zkMxy">
+      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
+    </node>
     <node concept="3clFb_" id="7MNmnelLntv" role="jymVt">
       <property role="TrG5h" value="equals" />
       <node concept="2AHcQZ" id="7MNmnelLntw" role="2AJF6D">
@@ -881,9 +884,6 @@
       <node concept="3Tm1VV" id="7MNmnelMBSI" role="1B3o_S" />
       <node concept="10Oyi0" id="7MNmnelMBSJ" role="3clF45" />
     </node>
-    <node concept="3uibUv" id="2VjxpU_Tpxo" role="1zkMxy">
-      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
-    </node>
   </node>
   <node concept="312cEu" id="2ICvjplYin7">
     <property role="TrG5h" value="KernelFErrorException" />
@@ -1173,6 +1173,9 @@
     </node>
     <node concept="3Tm1VV" id="2ICvjplYinY" role="1B3o_S" />
     <node concept="2tJIrI" id="2ICvjplYinZ" role="jymVt" />
+    <node concept="3uibUv" id="2ICvjplYio0" role="1zkMxy">
+      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
+    </node>
     <node concept="3clFb_" id="7MNmnelJ5tS" role="jymVt">
       <property role="TrG5h" value="equals" />
       <node concept="2AHcQZ" id="7MNmnelJ5tT" role="2AJF6D">
@@ -1340,9 +1343,6 @@
       <node concept="3Tm1VV" id="7MNmnelJ5v0" role="1B3o_S" />
       <node concept="10Oyi0" id="7MNmnelJ5v1" role="3clF45" />
     </node>
-    <node concept="3uibUv" id="2ICvjplYio0" role="1zkMxy">
-      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
-    </node>
   </node>
   <node concept="312cEu" id="VXV$b3eZ23">
     <property role="TrG5h" value="ParameterSetWrapper" />
@@ -1589,6 +1589,10 @@
       </node>
     </node>
     <node concept="2tJIrI" id="6jT4GDw1g9J" role="jymVt" />
+    <node concept="3Tm1VV" id="6jT4GDw1g67" role="1B3o_S" />
+    <node concept="3uibUv" id="6jT4GDw1g79" role="1zkMxy">
+      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
+    </node>
     <node concept="3clFb_" id="7MNmnelLQdF" role="jymVt">
       <property role="TrG5h" value="equals" />
       <node concept="2AHcQZ" id="7MNmnelLQdG" role="2AJF6D">
@@ -1705,10 +1709,6 @@
       <node concept="3Tm1VV" id="7MNmnelLQeL" role="1B3o_S" />
       <node concept="10Oyi0" id="7MNmnelLQeM" role="3clF45" />
     </node>
-    <node concept="3Tm1VV" id="6jT4GDw1g67" role="1B3o_S" />
-    <node concept="3uibUv" id="6jT4GDw1g79" role="1zkMxy">
-      <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
-    </node>
   </node>
   <node concept="3HP615" id="65vXeyMqfS9">
     <property role="TrG5h" value="MessageLog" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/org.iets3.core.expr.genjava.base.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/org.iets3.core.expr.genjava.base.rt.msd
index 593c0d98eb..dc17748c55 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/org.iets3.core.expr.genjava.base.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.base.rt/org.iets3.core.expr.genjava.base.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.base.rt" uuid="3a6ebc02-087e-4791-9854-65244ce22d8d" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.base.rt" uuid="3a6ebc02-087e-4791-9854-65244ce22d8d" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">646d63c6-d580-4c19-8759-e3a3123f5424(org.iets3.core.expr.genjava.messages.rt)</dependency>
@@ -18,7 +17,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/interpreter_genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/interpreter_genplan.mps
index 73cfea33d5..a71ff68f8e 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/interpreter_genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/interpreter_genplan.mps
@@ -3,16 +3,19 @@
   <persistence version="9" />
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
   </languages>
   <imports />
   <registry>
     <language id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan">
+      <concept id="1152961914448136207" name="jetbrains.mps.lang.generator.plan.structure.LanguageEntry" flags="ng" index="2Qf6Nf">
+        <child id="1152961914448136208" name="language" index="2Qf6Ng" />
+      </concept>
       <concept id="1820634577908471803" name="jetbrains.mps.lang.generator.plan.structure.Plan" flags="ng" index="2VgMpV">
         <child id="1820634577908471815" name="steps" index="2VgMA7" />
       </concept>
       <concept id="1820634577908471810" name="jetbrains.mps.lang.generator.plan.structure.Transform" flags="ng" index="2VgMA2">
-        <child id="2944629966652439181" name="languages" index="1t_9vn" />
+        <child id="1152961914448142326" name="entries" index="2Qf7GQ" />
       </concept>
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
@@ -22,7 +25,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -30,117 +33,173 @@
   <node concept="2VgMpV" id="4Egp0F2svxk">
     <property role="TrG5h" value="Interpreter_genplan" />
     <node concept="2VgMA2" id="6N3Rwqvd0S2" role="2VgMA7">
-      <node concept="2V$Bhx" id="6N3Rwqvd0S1" role="1t_9vn">
-        <property role="2V$B1T" value="8585453e-6bfb-4d80-98de-b16074f1d86c" />
-        <property role="2V$B1Q" value="jetbrains.mps.lang.test" />
-      </node>
-      <node concept="2V$Bhx" id="6N3Rwqvd0S3" role="1t_9vn">
-        <property role="2V$B1T" value="d441fba0-f46b-43cd-b723-dad7b65da615" />
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+          <property role="2V$B1Q" value="org.iets3.core.expr.tests" />
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+          <property role="2V$B1Q" value="jetbrains.mps.lang.migration" />
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+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.lightweightdsl" />
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+          <property role="2V$B1Q" value="jetbrains.mps.lang.smodel" />
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+          <property role="2V$B1T" value="63650c59-16c8-498a-99c8-005c7ee9515d" />
+          <property role="2V$B1Q" value="jetbrains.mps.lang.access" />
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+          <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
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+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816ZK" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="6N3Rwqvd0Sf" role="2Qf6Ng">
+          <property role="2V$B1T" value="fd392034-7849-419d-9071-12563d152375" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.closures" />
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+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816ZL" role="2Qf7GQ">
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+          <property role="2V$B1T" value="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.classifiers" />
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+          <property role="2V$B1T" value="f61473f9-130f-42f6-b98d-6c438812c2f6" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.unitTest" />
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+        <node concept="2V$Bhx" id="6N3Rwqvd0Si" role="2Qf6Ng">
+          <property role="2V$B1T" value="f3061a53-9226-4cc5-a443-f952ceaf5816" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816ZO" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="6N3Rwqvd0Sj" role="2Qf6Ng">
+          <property role="2V$B1T" value="df345b11-b8c7-4213-ac66-48d2a9b75d88" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguageInternal" />
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+          <property role="2V$B1Q" value="de.slisson.mps.richtext" />
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+      </node>
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+          <property role="2V$B1Q" value="org.iets3.analysis.base" />
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+          <property role="2V$B1Q" value="org.iets3.core.base" />
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+      </node>
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+        <node concept="2V$Bhx" id="6N3Rwqvd0Sq" role="2Qf6Ng">
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+          <property role="2V$B1Q" value="org.iets3.core.expr.base" />
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+      </node>
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+          <property role="2V$B1Q" value="org.iets3.core.expr.lambda" />
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+        <node concept="2V$Bhx" id="6N3Rwqvd0Ss" role="2Qf6Ng">
+          <property role="2V$B1T" value="f3eafff0-30d2-46d6-9150-f0f3b880ce27" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.path" />
+        </node>
+      </node>
+      <node concept="2Qf6Nf" id="4z0AnX816ZY" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="6N3Rwqvd0St" role="2Qf6Ng">
+          <property role="2V$B1T" value="6b277d9a-d52d-416f-a209-1919bd737f50" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.simpleTypes" />
+        </node>
       </node>
     </node>
   </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_genplan.mps
index eced802a14..1f1222e8d5 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_genplan.mps
@@ -3,16 +3,19 @@
   <persistence version="9" />
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="-1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
   </languages>
   <imports />
   <registry>
     <language id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan">
+      <concept id="1152961914448136207" name="jetbrains.mps.lang.generator.plan.structure.LanguageEntry" flags="ng" index="2Qf6Nf">
+        <child id="1152961914448136208" name="language" index="2Qf6Ng" />
+      </concept>
       <concept id="1820634577908471803" name="jetbrains.mps.lang.generator.plan.structure.Plan" flags="ng" index="2VgMpV">
         <child id="1820634577908471815" name="steps" index="2VgMA7" />
       </concept>
       <concept id="1820634577908471810" name="jetbrains.mps.lang.generator.plan.structure.Transform" flags="ng" index="2VgMA2">
-        <child id="2944629966652439181" name="languages" index="1t_9vn" />
+        <child id="1152961914448142326" name="entries" index="2Qf7GQ" />
       </concept>
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
@@ -22,7 +25,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -30,37 +33,53 @@
   <node concept="2VgMpV" id="6FvSwHlc883">
     <property role="TrG5h" value="Java_genplan" />
     <node concept="2VgMA2" id="7bZFIimhGaU" role="2VgMA7">
-      <node concept="2V$Bhx" id="DHMrP91qoC" role="1t_9vn">
-        <property role="2V$B1T" value="e75207bb-7b13-40bd-b80b-c8fe625c4ee2" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.tests" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zr" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="DHMrP91qoC" role="2Qf6Ng">
+          <property role="2V$B1T" value="e75207bb-7b13-40bd-b80b-c8fe625c4ee2" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.tests" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="1Ds3skywDIo" role="1t_9vn">
-        <property role="2V$B1T" value="ddeeec5e-aa31-4c44-bc40-319cd452626e" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.toplevel" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zs" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="1Ds3skywDIo" role="2Qf6Ng">
+          <property role="2V$B1T" value="ddeeec5e-aa31-4c44-bc40-319cd452626e" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.toplevel" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="DHMrP91qoA" role="1t_9vn">
-        <property role="2V$B1T" value="30254c5b-f87e-4bb3-a60a-77a7ec6ed411" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.base" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zt" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="DHMrP91qoA" role="2Qf6Ng">
+          <property role="2V$B1T" value="30254c5b-f87e-4bb3-a60a-77a7ec6ed411" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.base" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="DHMrP91qoE" role="1t_9vn">
-        <property role="2V$B1T" value="5a0b0b9c-ca67-4d27-9caa-ec974d9cfa40" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.simpleTypes" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zu" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="DHMrP91qoE" role="2Qf6Ng">
+          <property role="2V$B1T" value="5a0b0b9c-ca67-4d27-9caa-ec974d9cfa40" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.simpleTypes" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="lH$PuhTIAz" role="1t_9vn">
-        <property role="2V$B1T" value="f2abf2a6-552e-4906-ab58-930f9a79aff4" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.contracts" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zv" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="lH$PuhTIAz" role="2Qf6Ng">
+          <property role="2V$B1T" value="f2abf2a6-552e-4906-ab58-930f9a79aff4" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.contracts" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="6ii4I_AaKi7" role="1t_9vn">
-        <property role="2V$B1T" value="fd392034-7849-419d-9071-12563d152375" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.closures" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zw" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="6ii4I_AaKi7" role="2Qf6Ng">
+          <property role="2V$B1T" value="fd392034-7849-419d-9071-12563d152375" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.closures" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="4bh_m841Xu2" role="1t_9vn">
-        <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zx" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="4bh_m841Xu2" role="2Qf6Ng">
+          <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="1URTIF$uG6y" role="1t_9vn">
-        <property role="2V$B1T" value="f61473f9-130f-42f6-b98d-6c438812c2f6" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.unitTest" />
+      <node concept="2Qf6Nf" id="4z0AnX816Zy" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="1URTIF$uG6y" role="2Qf6Ng">
+          <property role="2V$B1T" value="f61473f9-130f-42f6-b98d-6c438812c2f6" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.unitTest" />
+        </node>
       </node>
     </node>
   </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_interpreter_genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_interpreter_genplan.mps
index 7d4f9b44db..5cfce3ccc1 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_interpreter_genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/models/java_interpreter_genplan.mps
@@ -2,7 +2,7 @@
 <model ref="r:5a45d31c-961e-446a-984a-d453af8ce385(org.iets3.core.expr.genjava.core.genplan.java_interpreter_genplan)">
   <persistence version="9" />
   <languages>
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
   </languages>
   <imports>
     <import index="g6e4" ref="r:44582398-dfcf-40ad-bb09-b88bb3cc5de2(org.iets3.core.expr.genjava.core.genplan.genplan)" />
@@ -21,7 +21,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/org.iets3.core.expr.genjava.core.genplan.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/org.iets3.core.expr.genjava.core.genplan.msd
index 6dbd94a2d5..6dd642211e 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/org.iets3.core.expr.genjava.core.genplan.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.core.genplan/org.iets3.core.expr.genjava.core.genplan.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.core.genplan" uuid="72f3ce09-f244-46a5-88ca-7b98cd2dfb22" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.core.genplan" uuid="72f3ce09-f244-46a5-88ca-7b98cd2dfb22" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,13 +10,12 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
-    <language slang="l:7ab1a6fa-0a11-4b95-9e48-75f363d6cb00:jetbrains.mps.lang.generator.plan" version="1" />
+    <language slang="l:7ab1a6fa-0a11-4b95-9e48-75f363d6cb00:jetbrains.mps.lang.generator.plan" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.functionalJava/org.iets3.core.expr.genjava.functionalJava.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.functionalJava/org.iets3.core.expr.genjava.functionalJava.msd
index 0bbaf39182..b903dd7ec2 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.functionalJava/org.iets3.core.expr.genjava.functionalJava.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.functionalJava/org.iets3.core.expr.genjava.functionalJava.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.functionalJava" uuid="708a03ad-8699-43c9-821a-6cd00b68e9f8" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.functionalJava" uuid="708a03ad-8699-43c9-821a-6cd00b68e9f8" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="java_classes">
       <sourceRoot location="lib/functionaljava_1.8-4.8-SNAPSHOT.jar" />
@@ -8,12 +8,9 @@
   <facets>
     <facet type="java" compile="mps" classes="mps" ext="no">
       <classes generated="true" path="${module}/classes_gen" />
+      <library location="${module}/lib/functionaljava_1.8-4.8-SNAPSHOT.jar" />
     </facet>
   </facets>
-  <stubModelEntries>
-    <stubModelEntry path="${module}/lib/functionaljava_1.8-4.8-SNAPSHOT.jar" />
-  </stubModelEntries>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
   </dependencies>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/models/rt.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/models/rt.mps
index 30ed8826f9..051d8c18a2 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/models/rt.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/models/rt.mps
@@ -22,7 +22,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -110,7 +110,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
         <child id="4972241301747169160" name="typeArgument" index="3PaCim" />
@@ -130,7 +130,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1107796713796" name="jetbrains.mps.baseLanguage.structure.Interface" flags="ig" index="3HP615">
@@ -146,7 +146,7 @@
       <concept id="1178893518978" name="jetbrains.mps.baseLanguage.structure.ThisConstructorInvocation" flags="nn" index="1VxSAg" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/org.iets3.core.expr.genjava.messages.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/org.iets3.core.expr.genjava.messages.rt.msd
index e4a92831f9..aa16bcc1e1 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/org.iets3.core.expr.genjava.messages.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.messages.rt/org.iets3.core.expr.genjava.messages.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.messages.rt" uuid="646d63c6-d580-4c19-8759-e3a3123f5424" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.messages.rt" uuid="646d63c6-d580-4c19-8759-e3a3123f5424" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">3f233e7f-b8a6-46d2-a57f-795d56775243(Annotations)</dependency>
   </dependencies>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/models/org.iets3.core.expr.genjava.stateMachineExample.genplan.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/models/org.iets3.core.expr.genjava.stateMachineExample.genplan.mps
index 573aa57530..7aa11aab7f 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/models/org.iets3.core.expr.genjava.stateMachineExample.genplan.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/models/org.iets3.core.expr.genjava.stateMachineExample.genplan.mps
@@ -3,16 +3,19 @@
   <persistence version="9" />
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="1" />
+    <use id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan" version="2" />
   </languages>
   <imports />
   <registry>
     <language id="7ab1a6fa-0a11-4b95-9e48-75f363d6cb00" name="jetbrains.mps.lang.generator.plan">
+      <concept id="1152961914448136207" name="jetbrains.mps.lang.generator.plan.structure.LanguageEntry" flags="ng" index="2Qf6Nf">
+        <child id="1152961914448136208" name="language" index="2Qf6Ng" />
+      </concept>
       <concept id="1820634577908471803" name="jetbrains.mps.lang.generator.plan.structure.Plan" flags="ng" index="2VgMpV">
         <child id="1820634577908471815" name="steps" index="2VgMA7" />
       </concept>
       <concept id="1820634577908471810" name="jetbrains.mps.lang.generator.plan.structure.Transform" flags="ng" index="2VgMA2">
-        <child id="2944629966652439181" name="languages" index="1t_9vn" />
+        <child id="1152961914448142326" name="entries" index="2Qf7GQ" />
       </concept>
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
@@ -22,7 +25,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -30,25 +33,35 @@
   <node concept="2VgMpV" id="4NM7IHyHqGk">
     <property role="TrG5h" value="Plan" />
     <node concept="2VgMA2" id="4NM7IHyHqGI" role="2VgMA7">
-      <node concept="2V$Bhx" id="4NM7IHyHqGY" role="1t_9vn">
-        <property role="2V$B1T" value="a15685d6-531e-45b7-9e72-af80302071ea" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.stateMachineExample" />
+      <node concept="2Qf6Nf" id="4z0AnX816ZZ" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="4NM7IHyHqGY" role="2Qf6Ng">
+          <property role="2V$B1T" value="a15685d6-531e-45b7-9e72-af80302071ea" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.stateMachineExample" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="4NM7IHyHqGR" role="1t_9vn">
-        <property role="2V$B1T" value="30254c5b-f87e-4bb3-a60a-77a7ec6ed411" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.base" />
+      <node concept="2Qf6Nf" id="4z0AnX81700" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="4NM7IHyHqGR" role="2Qf6Ng">
+          <property role="2V$B1T" value="30254c5b-f87e-4bb3-a60a-77a7ec6ed411" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.base" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="1NbTIKoZNg3" role="1t_9vn">
-        <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
+      <node concept="2Qf6Nf" id="4z0AnX81701" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="1NbTIKoZNg3" role="2Qf6Ng">
+          <property role="2V$B1T" value="83888646-71ce-4f1c-9c53-c54016f6ad4f" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage.collections" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="13L4QXvOSrD" role="1t_9vn">
-        <property role="2V$B1T" value="f3061a53-9226-4cc5-a443-f952ceaf5816" />
-        <property role="2V$B1Q" value="jetbrains.mps.baseLanguage" />
+      <node concept="2Qf6Nf" id="4z0AnX81702" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="13L4QXvOSrD" role="2Qf6Ng">
+          <property role="2V$B1T" value="f3061a53-9226-4cc5-a443-f952ceaf5816" />
+          <property role="2V$B1Q" value="jetbrains.mps.baseLanguage" />
+        </node>
       </node>
-      <node concept="2V$Bhx" id="4NM7IHyHqGM" role="1t_9vn">
-        <property role="2V$B1T" value="5a0b0b9c-ca67-4d27-9caa-ec974d9cfa40" />
-        <property role="2V$B1Q" value="org.iets3.core.expr.genjava.simpleTypes" />
+      <node concept="2Qf6Nf" id="4z0AnX81703" role="2Qf7GQ">
+        <node concept="2V$Bhx" id="4NM7IHyHqGM" role="2Qf6Ng">
+          <property role="2V$B1T" value="5a0b0b9c-ca67-4d27-9caa-ec974d9cfa40" />
+          <property role="2V$B1Q" value="org.iets3.core.expr.genjava.simpleTypes" />
+        </node>
       </node>
     </node>
   </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/org.iets3.core.expr.genjava.stateMachineExample.genplan.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/org.iets3.core.expr.genjava.stateMachineExample.genplan.msd
index 87a414a6b7..99498d3a80 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/org.iets3.core.expr.genjava.stateMachineExample.genplan.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.stateMachineExample.genplan/org.iets3.core.expr.genjava.stateMachineExample.genplan.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.stateMachineExample.genplan" uuid="889f307c-31c8-4d64-9e24-a83f15c85f02" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.stateMachineExample.genplan" uuid="889f307c-31c8-4d64-9e24-a83f15c85f02" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,13 +10,12 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
-    <language slang="l:7ab1a6fa-0a11-4b95-9e48-75f363d6cb00:jetbrains.mps.lang.generator.plan" version="1" />
+    <language slang="l:7ab1a6fa-0a11-4b95-9e48-75f363d6cb00:jetbrains.mps.lang.generator.plan" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/models/runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/models/runtime.mps
index fae944635d..ae18c29e0c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/models/runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/models/runtime.mps
@@ -26,7 +26,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -122,7 +122,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -142,13 +142,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
         <child id="1199542501692" name="parameterType" index="1ajw0F" />
@@ -162,7 +163,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -189,7 +190,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -480,13 +480,13 @@
                 <node concept="3clFbS" id="3nGzaxUtfSw" role="1bW5cS">
                   <node concept="3clFbF" id="3nGzaxUtfSx" role="3cqZAp">
                     <node concept="37vLTw" id="3nGzaxUtfSy" role="3clFbG">
-                      <ref role="3cqZAo" node="3nGzaxUtfSz" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817nu" resolve="it" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3nGzaxUtfSz" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817nu" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3nGzaxUtfS$" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817nv" role="1tU5fm" />
                 </node>
               </node>
               <node concept="1nlBCl" id="3nGzaxUtfS_" role="2S7zOq">
@@ -811,13 +811,13 @@
                 <node concept="3clFbS" id="4eVSC65wKJe" role="1bW5cS">
                   <node concept="3clFbF" id="4eVSC65wKJf" role="3cqZAp">
                     <node concept="37vLTw" id="4eVSC65wKJg" role="3clFbG">
-                      <ref role="3cqZAo" node="4eVSC65wKJh" resolve="it" />
+                      <ref role="3cqZAo" node="4z0AnX817nw" resolve="it" />
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="4eVSC65wKJh" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817nw" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="4eVSC65wKJi" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817nx" role="1tU5fm" />
                 </node>
               </node>
               <node concept="1nlBCl" id="4eVSC65wKJj" role="2S7zOq">
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/org.iets3.core.expr.genjava.temporal.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/org.iets3.core.expr.genjava.temporal.rt.msd
index f284a0a0db..692ae458e9 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/org.iets3.core.expr.genjava.temporal.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.temporal.rt/org.iets3.core.expr.genjava.temporal.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.temporal.rt" uuid="fde59617-0336-493b-a7ec-21148c3507f1" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.temporal.rt" uuid="fde59617-0336-493b-a7ec-21148c3507f1" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="true">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">17ecc6b6-d106-4b60-87a9-3fde52f92301(org.iets3.core.expr.temporal.runtime)</dependency>
@@ -18,7 +17,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/models/org.iets3.core.expr.genjava.tests.rt.rt.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/models/org.iets3.core.expr.genjava.tests.rt.rt.mps
index ba0473a10b..5d9db13e52 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/models/org.iets3.core.expr.genjava.tests.rt.rt.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/models/org.iets3.core.expr.genjava.tests.rt.rt.mps
@@ -94,7 +94,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -113,14 +113,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/org.iets3.core.expr.genjava.tests.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/org.iets3.core.expr.genjava.tests.rt.msd
index cdb80e47fc..a83de874c7 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/org.iets3.core.expr.genjava.tests.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.tests.rt/org.iets3.core.expr.genjava.tests.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.tests.rt" uuid="68da6d9d-3ccf-4255-b4f7-37603cd89090" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.tests.rt" uuid="68da6d9d-3ccf-4255-b4f7-37603cd89090" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,14 +10,13 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/models/rt.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/models/rt.mps
index e6171b9313..e4af51d269 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/models/rt.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/models/rt.mps
@@ -57,7 +57,7 @@
       </concept>
       <concept id="1068580123140" name="jetbrains.mps.baseLanguage.structure.ConstructorDeclaration" flags="ig" index="3clFbW" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk">
@@ -70,13 +70,13 @@
         <reference id="1107535924139" name="classifier" index="3uigEE" />
         <child id="1109201940907" name="parameter" index="11_B2D" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/org.iets3.core.expr.genjava.toplevel.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/org.iets3.core.expr.genjava.toplevel.rt.msd
index fbd7fa5917..4522530864 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/org.iets3.core.expr.genjava.toplevel.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.genjava.toplevel.rt/org.iets3.core.expr.genjava.toplevel.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.genjava.toplevel.rt" uuid="336cc7f4-18d3-473b-81a1-d8df1c0ad27a" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.genjava.toplevel.rt" uuid="336cc7f4-18d3-473b-81a1-d8df1c0ad27a" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
   </dependencies>
@@ -25,7 +24,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/models/plugin.mps
index 8f910dd54c..08f618c550 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -99,7 +99,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -171,6 +171,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -213,7 +214,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -244,7 +245,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
         <child id="1197932505799" name="map" index="3ElQJh" />
@@ -1258,16 +1258,16 @@
                           <node concept="liA8E" id="3TIaSh_f2Uo" role="2OqNvi">
                             <ref role="37wK5l" to="2ahs:RaqQlV4lZg" resolve="coverValue" />
                             <node concept="37vLTw" id="Om1N8Vect_" role="37wK5m">
-                              <ref role="3cqZAo" node="Om1N8VecfG" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817ny" resolve="it" />
                             </node>
                             <node concept="10Nm6u" id="3TIaSh_f3vR" role="37wK5m" />
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="Om1N8VecfG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817ny" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="Om1N8VecfH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817nz" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/org.iets3.core.expr.lambda.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/org.iets3.core.expr.lambda.interpreter.msd
index ab8c11729e..3c276facf6 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/org.iets3.core.expr.lambda.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.interpreter/org.iets3.core.expr.lambda.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.lambda.interpreter" uuid="8ba65567-1c8a-4983-beb8-0482324d7e44" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.lambda.interpreter" uuid="8ba65567-1c8a-4983-beb8-0482324d7e44" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cf90f965-8554-4a16-aa0b-6387f27474ab(org.iets3.core.expr.base.interpreter)</dependency>
     <dependency reexport="false">9464fa06-5ab9-409b-9274-64ab29588457(org.iets3.core.expr.lambda)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/models/org/iets3/core/expr/lambda/plugin/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/models/org/iets3/core/expr/lambda/plugin/plugin.mps
index 3123eee2f6..d55ff82d94 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/models/org/iets3/core/expr/lambda/plugin/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/models/org/iets3/core/expr/lambda/plugin/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:b0b9fb83-efa1-4dfe-9517-bc19da8392b2(org.iets3.core.expr.lambda.plugin.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="1fc20ffe-f35b-4791-a0b7-d706bad5c49a" name="com.mbeddr.mpsutil.refactoring" version="0" />
   </languages>
@@ -20,7 +20,7 @@
       <concept id="7520713872864775836" name="jetbrains.mps.lang.plugin.standalone.structure.StandalonePluginDescriptor" flags="ng" index="2DaZZR" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/org.iets3.core.expr.lambda.plugin.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/org.iets3.core.expr.lambda.plugin.msd
index 1a56f65c57..21e747b78c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/org.iets3.core.expr.lambda.plugin.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lambda.plugin/org.iets3.core.expr.lambda.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.lambda.plugin" uuid="0495221f-9fd1-41d6-bf26-b3b8aeb7eb7b" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.lambda.plugin" uuid="0495221f-9fd1-41d6-bf26-b3b8aeb7eb7b" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">9464fa06-5ab9-409b-9274-64ab29588457(org.iets3.core.expr.lambda)</dependency>
   </dependencies>
@@ -20,7 +19,7 @@
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
   </languageVersions>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/models/plugin.mps
index f63f1a9935..098c3b9e26 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
   </languages>
@@ -73,7 +73,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -118,6 +118,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -133,7 +134,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -149,7 +150,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1197683403723" name="jetbrains.mps.baseLanguage.collections.structure.MapType" flags="in" index="3rvAFt">
         <child id="1197683466920" name="keyType" index="3rvQeY" />
         <child id="1197683475734" name="valueType" index="3rvSg0" />
@@ -383,7 +383,7 @@
                                         <node concept="3clFbC" id="4bt45uNvmcE" role="3uHU7w">
                                           <node concept="2OqwBi" id="4bt45uNvmcF" role="3uHU7B">
                                             <node concept="37vLTw" id="4bt45uNvmcG" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4bt45uNvmcQ" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817n$" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="4bt45uNvmcH" role="2OqNvi">
                                               <ref role="3Tt5mk" to="8qwc:55lPkJGINbs" resolve="col" />
@@ -391,7 +391,7 @@
                                           </node>
                                           <node concept="2OqwBi" id="4bt45uNvmcI" role="3uHU7w">
                                             <node concept="37vLTw" id="4bt45uNvmcJ" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4bt45uNvmcQ" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817n$" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="4bt45uNvmcK" role="2OqNvi">
                                               <ref role="3Tt5mk" to="8qwc:55lPkJGINbs" resolve="col" />
@@ -401,7 +401,7 @@
                                         <node concept="3clFbC" id="4bt45uNvmcL" role="3uHU7B">
                                           <node concept="2OqwBi" id="4bt45uNvmcM" role="3uHU7B">
                                             <node concept="37vLTw" id="4bt45uNvmcN" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="4bt45uNvmcQ" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817n$" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="4bt45uNvmcO" role="2OqNvi">
                                               <ref role="3Tt5mk" to="8qwc:55lPkJGINbj" resolve="row" />
@@ -414,9 +414,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="4bt45uNvmcQ" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817n$" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="4bt45uNvmcR" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817n_" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/org.iets3.core.expr.lookup.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/org.iets3.core.expr.lookup.interpreter.msd
index 65c7b25ef3..cf05748c58 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/org.iets3.core.expr.lookup.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.lookup.interpreter/org.iets3.core.expr.lookup.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.lookup.interpreter" uuid="847dec6c-8460-4c2a-9e6e-039d9d12e815" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.lookup.interpreter" uuid="847dec6c-8460-4c2a-9e6e-039d9d12e815" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">0406e4b3-cffd-4d16-8533-6bc50680ab3b(org.iets3.core.expr.lookup)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -21,7 +20,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/models/plugin.mps
index 9d411830ac..c43f793d80 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
@@ -67,7 +67,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -188,7 +188,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -219,7 +219,7 @@
       <concept id="1184952934362" name="jetbrains.mps.baseLanguage.structure.DimensionExpression" flags="nn" index="3$GHV9">
         <child id="1184953288404" name="expression" index="3$I4v7" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -365,7 +365,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/org.iets3.core.expr.math.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/org.iets3.core.expr.math.interpreter.msd
index dcf826f70a..01a64051e0 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/org.iets3.core.expr.math.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.math.interpreter/org.iets3.core.expr.math.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.math.interpreter" uuid="b804a851-ecf0-4ad4-a0af-ae720b39191a" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.math.interpreter" uuid="b804a851-ecf0-4ad4-a0af-ae720b39191a" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -17,7 +17,6 @@
   <stubModelEntries>
     <stubModelEntry path="${module}/lib/big-math.jar" />
   </stubModelEntries>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
@@ -33,7 +32,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:5dc5fc0d-37ef-4782-8192-8b5ce1f69f80:jetbrains.mps.baseLanguage.extensionMethods" version="0" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/models/plugin.mps
index 89a55e41c3..bf53887f79 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -82,7 +82,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -164,7 +164,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/org.iets3.core.expr.messages.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/org.iets3.core.expr.messages.interpreter.msd
index 04e36a64de..a8dc1742a7 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/org.iets3.core.expr.messages.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.messages.interpreter/org.iets3.core.expr.messages.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.messages.interpreter" uuid="2bd330e3-1cae-4049-bed7-7d39e93cece4" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.messages.interpreter" uuid="2bd330e3-1cae-4049-bed7-7d39e93cece4" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -20,7 +19,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/models/plugin.mps
index 239d1eb90a..698dd632bf 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -55,7 +55,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/org.iets3.core.expr.metafunction.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/org.iets3.core.expr.metafunction.interpreter.msd
index ffa85b32c8..b2fa782102 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/org.iets3.core.expr.metafunction.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.metafunction.interpreter/org.iets3.core.expr.metafunction.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.metafunction.interpreter" uuid="dff61827-7f11-4bfe-aeb1-6491ed8a49b2" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.metafunction.interpreter" uuid="dff61827-7f11-4bfe-aeb1-6491ed8a49b2" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cf90f965-8554-4a16-aa0b-6387f27474ab(org.iets3.core.expr.base.interpreter)</dependency>
     <dependency reexport="false">711a16d7-99e8-4e1d-b20c-99c0b7309cd8(org.iets3.core.expr.metafunction)</dependency>
@@ -19,7 +18,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/models/plugin.mps
index b23c80bfb0..2f745686be 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
@@ -107,7 +107,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -167,6 +167,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -209,7 +210,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -232,7 +233,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
         <child id="1197932505799" name="map" index="3ElQJh" />
@@ -724,7 +724,7 @@
                               <node concept="2OqwBi" id="Z4fkwz7eS2" role="3clFbG">
                                 <node concept="2OqwBi" id="Z4fkwz7eS3" role="2Oq$k0">
                                   <node concept="37vLTw" id="Z4fkwz7eS4" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="Z4fkwz7eSa" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817nA" resolve="it" />
                                   </node>
                                   <node concept="2OwXpG" id="Z4fkwz7eS5" role="2OqNvi">
                                     <ref role="2Oxat5" to="n9sl:5y3VELftA2d" resolve="name" />
@@ -742,9 +742,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="Z4fkwz7eSa" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817nA" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="Z4fkwz7eSb" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817nB" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -930,7 +930,7 @@
                               <node concept="2OqwBi" id="Z4fkwz7bCB" role="3clFbG">
                                 <node concept="2OqwBi" id="Z4fkwz7bCC" role="2Oq$k0">
                                   <node concept="37vLTw" id="Z4fkwz7bCD" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="Z4fkwz7bCJ" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817nC" resolve="it" />
                                   </node>
                                   <node concept="2OwXpG" id="Z4fkwz7bCE" role="2OqNvi">
                                     <ref role="2Oxat5" to="n9sl:5y3VELftA2d" resolve="name" />
@@ -948,9 +948,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="Z4fkwz7bCJ" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817nC" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="Z4fkwz7bCK" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817nD" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/org.iets3.core.expr.mutable.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/org.iets3.core.expr.mutable.interpreter.msd
index 1aacce8593..fe05f4116b 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/org.iets3.core.expr.mutable.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.mutable.interpreter/org.iets3.core.expr.mutable.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.mutable.interpreter" uuid="1c56daef-6a92-4d68-8014-fbbd0240d553" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.mutable.interpreter" uuid="1c56daef-6a92-4d68-8014-fbbd0240d553" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">fbba5118-5fc6-49ff-9c3b-0b4469830440(org.iets3.core.expr.mutable)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/models/plugin.mps
index aeba0c38d5..bb811bcdb2 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -50,7 +50,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
@@ -101,7 +101,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/org.iets3.core.expr.natlang.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/org.iets3.core.expr.natlang.interpreter.msd
index 0a8d9a2bfc..d6f5481115 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/org.iets3.core.expr.natlang.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.natlang.interpreter/org.iets3.core.expr.natlang.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.natlang.interpreter" uuid="efafd749-49c6-482f-8a14-68061c57dd08" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.natlang.interpreter" uuid="efafd749-49c6-482f-8a14-68061c57dd08" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">64e79176-30a1-4836-821c-bf62ff6c6091(org.iets3.core.expr.natlang)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -21,7 +20,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/models/plugin.mps
index c7680b85c7..dec3bc21e0 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -85,7 +85,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -136,7 +136,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/org.iets3.core.expr.path.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/org.iets3.core.expr.path.interpreter.msd
index 93f7dbd9f6..f4f26c68ff 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/org.iets3.core.expr.path.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.path.interpreter/org.iets3.core.expr.path.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.path.interpreter" uuid="c008c84a-6d05-4b6f-82f0-5cb6c0231a11" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.path.interpreter" uuid="c008c84a-6d05-4b6f-82f0-5cb6c0231a11" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">f3eafff0-30d2-46d6-9150-f0f3b880ce27(org.iets3.core.expr.path)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -21,7 +20,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/models/plugin.mps
index 32caef82ad..9ce5b68c15 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/models/plugin.mps
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:e3e5593b-dfcd-4a2e-b10f-f1ed4a43f093(org.iets3.core.expr.plugin.plugin)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="-1" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access" version="-1" />
@@ -59,6 +60,7 @@
       </concept>
       <concept id="1203071646776" name="jetbrains.mps.lang.plugin.structure.ActionDeclaration" flags="ng" index="sE7Ow">
         <property id="1205250923097" name="caption" index="2uzpH1" />
+        <property id="4692598989365753297" name="updateInBackground" index="1rBW0U" />
         <child id="1203083196627" name="updateBlock" index="tmbBb" />
         <child id="1203083461638" name="executeFunction" index="tncku" />
         <child id="1217413222820" name="parameter" index="1NuT2Z" />
@@ -278,6 +280,7 @@
       <concept id="8974276187400348181" name="jetbrains.mps.lang.access.structure.ExecuteLightweightCommandStatement" flags="nn" index="1QHqEK" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
       </concept>
@@ -388,7 +391,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
         <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1237909114519" name="jetbrains.mps.baseLanguage.collections.structure.GetValuesOperation" flags="nn" index="T8wYR" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
@@ -560,15 +562,15 @@
                       <node concept="3clFbF" id="6l5633bp3R9" role="3cqZAp">
                         <node concept="2OqwBi" id="6l5633bp3WB" role="3clFbG">
                           <node concept="37vLTw" id="6l5633bp3R8" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6l5633bp3F8" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817nE" resolve="it" />
                           </node>
                           <node concept="1Bd96e" id="6l5633bp414" role="2OqNvi" />
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6l5633bp3F8" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817nE" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6l5633bp3F9" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817nF" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1229,6 +1231,7 @@
     <property role="TrG5h" value="deleteValuesInspectors" />
     <property role="2uzpH1" value="Remove all Inspectors" />
     <property role="3GE5qa" value="inspect" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="2ufoZQISyNn" role="tncku">
       <node concept="3clFbS" id="2ufoZQISyNo" role="2VODD2">
         <node concept="3clFbF" id="2ufoZQISyNp" role="3cqZAp">
@@ -1254,7 +1257,7 @@
                         <node concept="10Nm6u" id="2ufoZQISyNC" role="3uHU7w" />
                         <node concept="2OqwBi" id="2ufoZQISyND" role="3uHU7B">
                           <node concept="37vLTw" id="2ufoZQISyNE" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2ufoZQISyNH" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817nG" resolve="it" />
                           </node>
                           <node concept="3CFZ6_" id="2ufoZQISyNF" role="2OqNvi">
                             <node concept="3CFYIy" id="2ufoZQISyNG" role="3CFYIz">
@@ -1265,9 +1268,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2ufoZQISyNH" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817nG" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2ufoZQISyNI" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817nH" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1279,7 +1282,7 @@
                     <node concept="2OqwBi" id="2ufoZQISyNN" role="3clFbG">
                       <node concept="2OqwBi" id="2ufoZQISyNO" role="2Oq$k0">
                         <node concept="37vLTw" id="2ufoZQISyNP" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2ufoZQISyNT" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817nI" resolve="it" />
                         </node>
                         <node concept="3CFZ6_" id="2ufoZQISyNQ" role="2OqNvi">
                           <node concept="3CFYIy" id="2ufoZQISyNR" role="3CFYIz">
@@ -1291,9 +1294,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2ufoZQISyNT" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817nI" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2ufoZQISyNU" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817nJ" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -1335,6 +1338,7 @@
     <property role="TrG5h" value="addValueInspector" />
     <property role="2uzpH1" value="Add Inspector" />
     <property role="3GE5qa" value="inspect" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="2ufoZQIRClY" role="tncku">
       <node concept="3clFbS" id="2ufoZQIRClZ" role="2VODD2">
         <node concept="3clFbF" id="2ufoZQISkoz" role="3cqZAp">
@@ -1395,6 +1399,7 @@
     <property role="TrG5h" value="clearValuesInspector" />
     <property role="2uzpH1" value="Clear Inspectors" />
     <property role="3GE5qa" value="inspect" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="2ufoZQISnwB" role="tncku">
       <node concept="3clFbS" id="2ufoZQISnwC" role="2VODD2">
         <node concept="3clFbF" id="2ufoZQISnwT" role="3cqZAp">
@@ -1420,7 +1425,7 @@
                         <node concept="10Nm6u" id="2ufoZQISvSj" role="3uHU7w" />
                         <node concept="2OqwBi" id="2ufoZQISvbs" role="3uHU7B">
                           <node concept="37vLTw" id="2ufoZQISurh" role="2Oq$k0">
-                            <ref role="3cqZAo" node="2ufoZQISuaB" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817nK" resolve="it" />
                           </node>
                           <node concept="3CFZ6_" id="2ufoZQISvnu" role="2OqNvi">
                             <node concept="3CFYIy" id="2ufoZQISvwo" role="3CFYIz">
@@ -1431,9 +1436,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="2ufoZQISuaB" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817nK" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="2ufoZQISuaC" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817nL" role="1tU5fm" />
                   </node>
                 </node>
               </node>
@@ -1445,7 +1450,7 @@
                     <node concept="2OqwBi" id="2ufoZQISx$9" role="3clFbG">
                       <node concept="2OqwBi" id="2ufoZQISwXH" role="2Oq$k0">
                         <node concept="37vLTw" id="2ufoZQISwO1" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2ufoZQISwEK" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817nM" resolve="it" />
                         </node>
                         <node concept="3CFZ6_" id="2ufoZQISxdN" role="2OqNvi">
                           <node concept="3CFYIy" id="2ufoZQISxjY" role="3CFYIz">
@@ -1459,9 +1464,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2ufoZQISwEK" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817nM" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2ufoZQISwEL" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817nN" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2262,7 +2267,7 @@
                   <node concept="3clFbF" id="3TIaSh$QwGh" role="3cqZAp">
                     <node concept="17R0WA" id="3TIaSh$QxnK" role="3clFbG">
                       <node concept="37vLTw" id="3TIaSh$QwGg" role="3uHU7B">
-                        <ref role="3cqZAo" node="3TIaSh$Qwzv" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817nO" resolve="it" />
                       </node>
                       <node concept="37vLTw" id="3TIaSh$Qxwr" role="3uHU7w">
                         <ref role="3cqZAo" node="3TIaSh$Qxwp" resolve="cvg" />
@@ -2270,9 +2275,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="3TIaSh$Qwzv" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817nO" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="3TIaSh$Qwzw" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817nP" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2427,7 +2432,7 @@
                   <node concept="3clFbF" id="1m$qA_Y_gGw" role="3cqZAp">
                     <node concept="17R0WA" id="1m$qA_Y_gGx" role="3clFbG">
                       <node concept="37vLTw" id="1m$qA_Y_gGy" role="3uHU7B">
-                        <ref role="3cqZAo" node="1m$qA_Y_gG$" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817nQ" resolve="it" />
                       </node>
                       <node concept="37vLTw" id="1m$qA_Y_gGz" role="3uHU7w">
                         <ref role="3cqZAo" node="1m$qA_Y_hIW" resolve="cvg" />
@@ -2435,9 +2440,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="1m$qA_Y_gG$" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817nQ" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="1m$qA_Y_gG_" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817nR" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2445,104 +2450,252 @@
         </node>
         <node concept="3clFbF" id="1m$qA_Y$P3O" role="3cqZAp">
           <node concept="2YIFZM" id="1m$qA_Y_fqV" role="3clFbG">
-            <ref role="37wK5l" to="pbu6:1m$qA_Y$USd" resolve="hasData" />
-            <ref role="1Pybhc" to="pbu6:4_qY3E5IXRD" resolve="DefaultCoverageAnalyzer" />
+            <ref role="37wK5l" to="pbu6:7LZDtvhyM3$" resolve="hasData" />
+            <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
           </node>
         </node>
       </node>
     </node>
   </node>
-  <node concept="312cEu" id="5rUl2R7NKQt">
+  <node concept="312cEu" id="5rUl2R7JDDM">
     <property role="3GE5qa" value="testExecution" />
-    <property role="TrG5h" value="NoPreferenceWorkspace" />
-    <node concept="3clFbW" id="5rUl2R7NKQu" role="jymVt">
-      <node concept="3cqZAl" id="5rUl2R7NKQv" role="3clF45" />
-      <node concept="3Tm1VV" id="5rUl2R7NKQw" role="1B3o_S" />
-      <node concept="3clFbS" id="5rUl2R7NKQx" role="3clF47">
-        <node concept="XkiVB" id="5rUl2R7NKQy" role="3cqZAp">
+    <property role="TrG5h" value="GeneratorWorkspace" />
+    <node concept="3clFbW" id="5rUl2R7JDDN" role="jymVt">
+      <node concept="3cqZAl" id="5rUl2R7JDDO" role="3clF45" />
+      <node concept="3Tm1VV" id="5rUl2R7JDDP" role="1B3o_S" />
+      <node concept="3clFbS" id="5rUl2R7JDDQ" role="3clF47">
+        <node concept="XkiVB" id="5rUl2R7JDDR" role="3cqZAp">
           <ref role="37wK5l" to="qkt:~ToggleAction.&lt;init&gt;(java.lang.String)" resolve="ToggleAction" />
-          <node concept="Xl_RD" id="5rUl2R7NKQz" role="37wK5m">
-            <property role="Xl_RC" value="KernelF Tests: No preference (workspace overrides above settings)" />
+          <node concept="Xl_RD" id="5rUl2R7JDDS" role="37wK5m">
+            <property role="Xl_RC" value="KernelF Tests: Generator (workspace)" />
           </node>
         </node>
       </node>
     </node>
-    <node concept="3Tm1VV" id="5rUl2R7NKQ$" role="1B3o_S" />
-    <node concept="3uibUv" id="5rUl2R7NKQ_" role="1zkMxy">
+    <node concept="3Tm1VV" id="5rUl2R7JDDT" role="1B3o_S" />
+    <node concept="3uibUv" id="5rUl2R7JDDU" role="1zkMxy">
       <ref role="3uigEE" to="qkt:~ToggleAction" resolve="ToggleAction" />
     </node>
-    <node concept="3clFb_" id="5rUl2R7NKQA" role="jymVt">
+    <node concept="3clFb_" id="5rUl2R7JDDV" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="isSelected" />
       <property role="DiZV1" value="false" />
       <property role="od$2w" value="false" />
-      <node concept="3Tm1VV" id="5rUl2R7NKQB" role="1B3o_S" />
-      <node concept="10P_77" id="5rUl2R7NKQC" role="3clF45" />
-      <node concept="37vLTG" id="5rUl2R7NKQD" role="3clF46">
+      <node concept="3Tm1VV" id="5rUl2R7JDDW" role="1B3o_S" />
+      <node concept="10P_77" id="5rUl2R7JDDX" role="3clF45" />
+      <node concept="37vLTG" id="5rUl2R7JDDY" role="3clF46">
         <property role="TrG5h" value="event" />
-        <node concept="3uibUv" id="5rUl2R7NKQE" role="1tU5fm">
+        <node concept="3uibUv" id="5rUl2R7JDDZ" role="1tU5fm">
           <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
         </node>
       </node>
-      <node concept="3clFbS" id="5rUl2R7NKQF" role="3clF47">
-        <node concept="3cpWs8" id="5rUl2R7NKQG" role="3cqZAp">
-          <node concept="3cpWsn" id="5rUl2R7NKQH" role="3cpWs9">
+      <node concept="3clFbS" id="5rUl2R7JDE0" role="3clF47">
+        <node concept="3cpWs8" id="5rUl2R7KnQD" role="3cqZAp">
+          <node concept="3cpWsn" id="5rUl2R7KnQE" role="3cpWs9">
             <property role="TrG5h" value="mode" />
-            <node concept="3uibUv" id="5rUl2R7NKQI" role="1tU5fm">
+            <node concept="3uibUv" id="5rUl2R7KGhX" role="1tU5fm">
               <ref role="3uigEE" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
             </node>
-            <node concept="2YIFZM" id="5rUl2R7NKQJ" role="33vP2m">
-              <ref role="1Pybhc" node="5rUl2R7JYML" resolve="TestExecutionWorkspaceSetting" />
+            <node concept="2YIFZM" id="5rUl2R7KrpJ" role="33vP2m">
               <ref role="37wK5l" node="5rUl2R7Ka3V" resolve="getExecutionMode" />
+              <ref role="1Pybhc" node="5rUl2R7JYML" resolve="TestExecutionWorkspaceSetting" />
             </node>
           </node>
         </node>
-        <node concept="3clFbF" id="5rUl2R7NKQN" role="3cqZAp">
-          <node concept="17R0WA" id="5rUl2R7NKQO" role="3clFbG">
-            <node concept="Rm8GO" id="5rUl2R7NMki" role="3uHU7w">
-              <ref role="Rm8GQ" node="5rUl2R7KE90" resolve="NO_PREFERENCE" />
+        <node concept="3clFbF" id="5rUl2R7KtJ4" role="3cqZAp">
+          <node concept="17R0WA" id="5rUl2R7KwIK" role="3clFbG">
+            <node concept="Rm8GO" id="5rUl2R7KGB2" role="3uHU7w">
+              <ref role="Rm8GQ" node="5rUl2R7KE3p" resolve="GENERATOR" />
               <ref role="1Px2BO" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
             </node>
-            <node concept="37vLTw" id="5rUl2R7NKQQ" role="3uHU7B">
-              <ref role="3cqZAo" node="5rUl2R7NKQH" resolve="mode" />
+            <node concept="37vLTw" id="5rUl2R7KtJ2" role="3uHU7B">
+              <ref role="3cqZAo" node="5rUl2R7KnQE" resolve="mode" />
             </node>
           </node>
         </node>
       </node>
-      <node concept="2AHcQZ" id="5rUl2R7NKQR" role="2AJF6D">
+      <node concept="2AHcQZ" id="5rUl2R7JDEK" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="3clFb_" id="5rUl2R7NKQS" role="jymVt">
+    <node concept="3clFb_" id="5rUl2R7JDEL" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setSelected" />
       <property role="DiZV1" value="false" />
       <property role="od$2w" value="false" />
-      <node concept="3Tm1VV" id="5rUl2R7NKQT" role="1B3o_S" />
-      <node concept="3cqZAl" id="5rUl2R7NKQU" role="3clF45" />
-      <node concept="37vLTG" id="5rUl2R7NKQV" role="3clF46">
+      <node concept="3Tm1VV" id="5rUl2R7JDEM" role="1B3o_S" />
+      <node concept="3cqZAl" id="5rUl2R7JDEN" role="3clF45" />
+      <node concept="37vLTG" id="5rUl2R7JDEO" role="3clF46">
         <property role="TrG5h" value="event" />
-        <node concept="3uibUv" id="5rUl2R7NKQW" role="1tU5fm">
+        <node concept="3uibUv" id="5rUl2R7JDEP" role="1tU5fm">
           <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
         </node>
       </node>
-      <node concept="37vLTG" id="5rUl2R7NKQX" role="3clF46">
+      <node concept="37vLTG" id="5rUl2R7JDEQ" role="3clF46">
         <property role="TrG5h" value="b" />
-        <node concept="10P_77" id="5rUl2R7NKQY" role="1tU5fm" />
+        <node concept="10P_77" id="5rUl2R7JDER" role="1tU5fm" />
       </node>
-      <node concept="3clFbS" id="5rUl2R7NKQZ" role="3clF47">
-        <node concept="3clFbF" id="5rUl2R7NKR0" role="3cqZAp">
-          <node concept="2YIFZM" id="5rUl2R7NMZH" role="3clFbG">
-            <ref role="37wK5l" node="5rUl2R7K_Rs" resolve="clearExecutionMode" />
+      <node concept="3clFbS" id="5rUl2R7JDES" role="3clF47">
+        <node concept="3clFbF" id="5rUl2R7KHfz" role="3cqZAp">
+          <node concept="2YIFZM" id="5rUl2R7KCfH" role="3clFbG">
+            <ref role="37wK5l" node="5rUl2R7KxIX" resolve="setExecutionMode" />
             <ref role="1Pybhc" node="5rUl2R7JYML" resolve="TestExecutionWorkspaceSetting" />
+            <node concept="Rm8GO" id="5rUl2R7KHbk" role="37wK5m">
+              <ref role="Rm8GQ" node="5rUl2R7KE3p" resolve="GENERATOR" />
+              <ref role="1Px2BO" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
+            </node>
           </node>
         </node>
       </node>
-      <node concept="2AHcQZ" id="5rUl2R7NKR6" role="2AJF6D">
+      <node concept="2AHcQZ" id="5rUl2R7JDFv" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
   </node>
+  <node concept="312cEu" id="5rUl2R7JYML">
+    <property role="3GE5qa" value="testExecution" />
+    <property role="TrG5h" value="TestExecutionWorkspaceSetting" />
+    <node concept="Wx3nA" id="5rUl2R7KcOJ" role="jymVt">
+      <property role="TrG5h" value="KEY" />
+      <property role="3TUv4t" value="true" />
+      <node concept="3Tm6S6" id="5rUl2R7Kctg" role="1B3o_S" />
+      <node concept="17QB3L" id="5rUl2R7KcLR" role="1tU5fm" />
+      <node concept="Xl_RD" id="5rUl2R7KcYW" role="33vP2m">
+        <property role="Xl_RC" value="org.iets3.core.expr.testExecution" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="5rUl2R7KcM3" role="jymVt" />
+    <node concept="2tJIrI" id="5rUl2R7K8MW" role="jymVt" />
+    <node concept="2YIFZL" id="5rUl2R7Ka3V" role="jymVt">
+      <property role="TrG5h" value="getExecutionMode" />
+      <node concept="3clFbS" id="5rUl2R7Ka3Y" role="3clF47">
+        <node concept="3cpWs8" id="5rUl2R7KeqZ" role="3cqZAp">
+          <node concept="3cpWsn" id="5rUl2R7Ker0" role="3cpWs9">
+            <property role="TrG5h" value="value" />
+            <node concept="17QB3L" id="5rUl2R7KiPQ" role="1tU5fm" />
+            <node concept="2OqwBi" id="5rUl2R7Ker1" role="33vP2m">
+              <node concept="2YIFZM" id="5rUl2R7Ker2" role="2Oq$k0">
+                <ref role="1Pybhc" to="jmi8:~PropertiesComponent" resolve="PropertiesComponent" />
+                <ref role="37wK5l" to="jmi8:~PropertiesComponent.getInstance()" resolve="getInstance" />
+              </node>
+              <node concept="liA8E" id="5rUl2R7Ker4" role="2OqNvi">
+                <ref role="37wK5l" to="jmi8:~PropertiesComponent.getValue(java.lang.String)" resolve="getValue" />
+                <node concept="37vLTw" id="5rUl2R7Ker5" role="37wK5m">
+                  <ref role="3cqZAo" node="5rUl2R7KcOJ" resolve="KEY" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbJ" id="5rUl2R7Kf2D" role="3cqZAp">
+          <node concept="3clFbS" id="5rUl2R7Kf2F" role="3clFbx">
+            <node concept="3cpWs6" id="5rUl2R7Kg8j" role="3cqZAp">
+              <node concept="Rm8GO" id="5rUl2R7KF0m" role="3cqZAk">
+                <ref role="Rm8GQ" node="5rUl2R7KE90" resolve="NO_PREFERENCE" />
+                <ref role="1Px2BO" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbC" id="5rUl2R7KfG5" role="3clFbw">
+            <node concept="10Nm6u" id="5rUl2R7KfX3" role="3uHU7w" />
+            <node concept="37vLTw" id="5rUl2R7Kfhp" role="3uHU7B">
+              <ref role="3cqZAo" node="5rUl2R7Ker0" resolve="value" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="5rUl2R7KgDa" role="3cqZAp" />
+        <node concept="3clFbF" id="5rUl2R7Khco" role="3cqZAp">
+          <node concept="unr1b" id="5rUl2R7KhRh" role="3clFbG">
+            <ref role="un$jP" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
+            <node concept="37vLTw" id="5rUl2R7KixT" role="unwt0">
+              <ref role="3cqZAo" node="5rUl2R7Ker0" resolve="value" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="5rUl2R7K9oN" role="1B3o_S" />
+      <node concept="3uibUv" id="5rUl2R7KEEl" role="3clF45">
+        <ref role="3uigEE" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
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+    <node concept="2YIFZL" id="5rUl2R7KxIX" role="jymVt">
+      <property role="TrG5h" value="setExecutionMode" />
+      <node concept="37vLTG" id="5rUl2R7KyQy" role="3clF46">
+        <property role="TrG5h" value="mode" />
+        <node concept="3uibUv" id="5rUl2R7KFws" role="1tU5fm">
+          <ref role="3uigEE" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="5rUl2R7KxJ0" role="3clF47">
+        <node concept="3clFbF" id="5rUl2R7K$Xy" role="3cqZAp">
+          <node concept="2OqwBi" id="5rUl2R7Ky40" role="3clFbG">
+            <node concept="2YIFZM" id="5rUl2R7Ky41" role="2Oq$k0">
+              <ref role="1Pybhc" to="jmi8:~PropertiesComponent" resolve="PropertiesComponent" />
+              <ref role="37wK5l" to="jmi8:~PropertiesComponent.getInstance()" resolve="getInstance" />
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+            <node concept="liA8E" id="5rUl2R7Ky43" role="2OqNvi">
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             <property role="TrG5h" value="mode" />
-            <node concept="3uibUv" id="5rUl2R7KGhX" role="1tU5fm">
+            <node concept="3uibUv" id="5rUl2R7NKQI" role="1tU5fm">
               <ref role="3uigEE" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
             </node>
-            <node concept="2YIFZM" id="5rUl2R7KrpJ" role="33vP2m">
-              <ref role="37wK5l" node="5rUl2R7Ka3V" resolve="getExecutionMode" />
+            <node concept="2YIFZM" id="5rUl2R7NKQJ" role="33vP2m">
               <ref role="1Pybhc" node="5rUl2R7JYML" resolve="TestExecutionWorkspaceSetting" />
+              <ref role="37wK5l" node="5rUl2R7Ka3V" resolve="getExecutionMode" />
             </node>
           </node>
         </node>
-        <node concept="3clFbF" id="5rUl2R7KtJ4" role="3cqZAp">
-          <node concept="17R0WA" id="5rUl2R7KwIK" role="3clFbG">
-            <node concept="Rm8GO" id="5rUl2R7KGB2" role="3uHU7w">
-              <ref role="Rm8GQ" node="5rUl2R7KE3p" resolve="GENERATOR" />
+        <node concept="3clFbF" id="5rUl2R7NKQN" role="3cqZAp">
+          <node concept="17R0WA" id="5rUl2R7NKQO" role="3clFbG">
+            <node concept="Rm8GO" id="5rUl2R7NMki" role="3uHU7w">
+              <ref role="Rm8GQ" node="5rUl2R7KE90" resolve="NO_PREFERENCE" />
               <ref role="1Px2BO" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
             </node>
-            <node concept="37vLTw" id="5rUl2R7KtJ2" role="3uHU7B">
-              <ref role="3cqZAo" node="5rUl2R7KnQE" resolve="mode" />
+            <node concept="37vLTw" id="5rUl2R7NKQQ" role="3uHU7B">
+              <ref role="3cqZAo" node="5rUl2R7NKQH" resolve="mode" />
             </node>
           </node>
         </node>
       </node>
-      <node concept="2AHcQZ" id="5rUl2R7JDEK" role="2AJF6D">
+      <node concept="2AHcQZ" id="5rUl2R7NKQR" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="3clFb_" id="5rUl2R7JDEL" role="jymVt">
+    <node concept="3clFb_" id="5rUl2R7NKQS" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setSelected" />
       <property role="DiZV1" value="false" />
       <property role="od$2w" value="false" />
-      <node concept="3Tm1VV" id="5rUl2R7JDEM" role="1B3o_S" />
-      <node concept="3cqZAl" id="5rUl2R7JDEN" role="3clF45" />
-      <node concept="37vLTG" id="5rUl2R7JDEO" role="3clF46">
+      <node concept="3Tm1VV" id="5rUl2R7NKQT" role="1B3o_S" />
+      <node concept="3cqZAl" id="5rUl2R7NKQU" role="3clF45" />
+      <node concept="37vLTG" id="5rUl2R7NKQV" role="3clF46">
         <property role="TrG5h" value="event" />
-        <node concept="3uibUv" id="5rUl2R7JDEP" role="1tU5fm">
+        <node concept="3uibUv" id="5rUl2R7NKQW" role="1tU5fm">
           <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
         </node>
       </node>
-      <node concept="37vLTG" id="5rUl2R7JDEQ" role="3clF46">
+      <node concept="37vLTG" id="5rUl2R7NKQX" role="3clF46">
         <property role="TrG5h" value="b" />
-        <node concept="10P_77" id="5rUl2R7JDER" role="1tU5fm" />
+        <node concept="10P_77" id="5rUl2R7NKQY" role="1tU5fm" />
       </node>
-      <node concept="3clFbS" id="5rUl2R7JDES" role="3clF47">
-        <node concept="3clFbF" id="5rUl2R7KHfz" role="3cqZAp">
-          <node concept="2YIFZM" id="5rUl2R7KCfH" role="3clFbG">
-            <ref role="37wK5l" node="5rUl2R7KxIX" resolve="setExecutionMode" />
+      <node concept="3clFbS" id="5rUl2R7NKQZ" role="3clF47">
+        <node concept="3clFbF" id="5rUl2R7NKR0" role="3cqZAp">
+          <node concept="2YIFZM" id="5rUl2R7NMZH" role="3clFbG">
+            <ref role="37wK5l" node="5rUl2R7K_Rs" resolve="clearExecutionMode" />
             <ref role="1Pybhc" node="5rUl2R7JYML" resolve="TestExecutionWorkspaceSetting" />
-            <node concept="Rm8GO" id="5rUl2R7KHbk" role="37wK5m">
-              <ref role="Rm8GQ" node="5rUl2R7KE3p" resolve="GENERATOR" />
-              <ref role="1Px2BO" node="5rUl2R7KDH5" resolve="ExecutionModePreference" />
-            </node>
           </node>
         </node>
       </node>
-      <node concept="2AHcQZ" id="5rUl2R7JDFv" role="2AJF6D">
+      <node concept="2AHcQZ" id="5rUl2R7NKR6" role="2AJF6D">
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
   </node>
-  <node concept="3HP615" id="3ApArNFAIPt">
-    <property role="TrG5h" value="ITraceExplorerAction" />
-    <node concept="2tJIrI" id="3ApArNFBW5B" role="jymVt" />
-    <node concept="3clFb_" id="3ApArNFAK9d" role="jymVt">
-      <property role="TrG5h" value="getPriority" />
-      <node concept="3clFbS" id="3ApArNFAK9g" role="3clF47" />
-      <node concept="3Tm1VV" id="3ApArNFAK9h" role="1B3o_S" />
-      <node concept="10Oyi0" id="3ApArNFAK90" role="3clF45" />
-    </node>
-    <node concept="2tJIrI" id="3ApArNFBW52" role="jymVt" />
-    <node concept="3clFb_" id="3ApArNFD4pN" role="jymVt">
-      <property role="TrG5h" value="initialize" />
-      <node concept="37vLTG" id="3ApArNFD4AI" role="3clF46">
-        <property role="TrG5h" value="ideaProject" />
-        <node concept="3uibUv" id="3ApArNFD4AJ" role="1tU5fm">
-          <ref role="3uigEE" to="4nm9:~Project" resolve="Project" />
-        </node>
-      </node>
-      <node concept="37vLTG" id="3ApArNFD4AK" role="3clF46">
-        <property role="TrG5h" value="mpsProject" />
-        <node concept="3uibUv" id="3ApArNFD4AL" role="1tU5fm">
-          <ref role="3uigEE" to="z1c3:~MPSProject" resolve="MPSProject" />
-        </node>
-      </node>
-      <node concept="3clFbS" id="3ApArNFD4pQ" role="3clF47" />
-      <node concept="3Tm1VV" id="3ApArNFD4pR" role="1B3o_S" />
-      <node concept="3cqZAl" id="3ApArNFD4oV" role="3clF45" />
-    </node>
-    <node concept="2tJIrI" id="3ApArNFD4P2" role="jymVt" />
-    <node concept="3clFb_" id="3ApArNFJXkK" role="jymVt">
-      <property role="TrG5h" value="setNode" />
-      <node concept="3clFbS" id="3ApArNFJXkN" role="3clF47" />
-      <node concept="3Tm1VV" id="3ApArNFJXkO" role="1B3o_S" />
-      <node concept="3cqZAl" id="3ApArNFJXjs" role="3clF45" />
-      <node concept="37vLTG" id="3ApArNFJXTE" role="3clF46">
-        <property role="TrG5h" value="node" />
-        <node concept="3Tqbb2" id="3ApArNFJXTD" role="1tU5fm" />
-      </node>
-    </node>
-    <node concept="2tJIrI" id="3ApArNFJWTz" role="jymVt" />
-    <node concept="3clFb_" id="3ApArNFD4Nv" role="jymVt">
-      <property role="TrG5h" value="isApplicable" />
-      <node concept="3clFbS" id="3ApArNFBSd8" role="3clF47" />
-      <node concept="37vLTG" id="3ApArNFBSdb" role="3clF46">
-        <property role="TrG5h" value="event" />
-        <node concept="3uibUv" id="3ApArNFBSdc" role="1tU5fm">
-          <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
-        </node>
-      </node>
-      <node concept="10P_77" id="3ApArNFBSd6" role="3clF45" />
-      <node concept="3Tm1VV" id="3ApArNFBSdg" role="1B3o_S" />
-    </node>
-    <node concept="2tJIrI" id="3ApArNFD4D1" role="jymVt" />
-    <node concept="3clFb_" id="3ApArNFBZx6" role="jymVt">
-      <property role="TrG5h" value="execute" />
-      <node concept="37vLTG" id="3ApArNFC20D" role="3clF46">
-        <property role="TrG5h" value="event" />
-        <node concept="3uibUv" id="3ApArNFC20E" role="1tU5fm">
-          <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
-        </node>
-      </node>
-      <node concept="3clFbS" id="3ApArNFBZx9" role="3clF47" />
-      <node concept="3Tm1VV" id="3ApArNFBZxa" role="1B3o_S" />
-      <node concept="3cqZAl" id="3ApArNFBZws" role="3clF45" />
-    </node>
-    <node concept="2tJIrI" id="3ApArNFAR3Z" role="jymVt" />
-    <node concept="3Tm1VV" id="3ApArNFAIPu" role="1B3o_S" />
-  </node>
   <node concept="312cEu" id="5rUl2R7OncF">
     <property role="3GE5qa" value="testExecution" />
     <property role="TrG5h" value="TestExecutionSettings" />
@@ -3117,5 +2981,146 @@
     </node>
     <node concept="3Tm1VV" id="5rUl2R7OncG" role="1B3o_S" />
   </node>
+  <node concept="3HP615" id="3ApArNFAIPt">
+    <property role="TrG5h" value="ITraceExplorerAction" />
+    <node concept="2tJIrI" id="3ApArNFBW5B" role="jymVt" />
+    <node concept="3clFb_" id="3ApArNFAK9d" role="jymVt">
+      <property role="TrG5h" value="getPriority" />
+      <node concept="3clFbS" id="3ApArNFAK9g" role="3clF47" />
+      <node concept="3Tm1VV" id="3ApArNFAK9h" role="1B3o_S" />
+      <node concept="10Oyi0" id="3ApArNFAK90" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="3ApArNFBW52" role="jymVt" />
+    <node concept="3clFb_" id="3ApArNFD4pN" role="jymVt">
+      <property role="TrG5h" value="initialize" />
+      <node concept="37vLTG" id="3ApArNFD4AI" role="3clF46">
+        <property role="TrG5h" value="ideaProject" />
+        <node concept="3uibUv" id="3ApArNFD4AJ" role="1tU5fm">
+          <ref role="3uigEE" to="4nm9:~Project" resolve="Project" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="3ApArNFD4AK" role="3clF46">
+        <property role="TrG5h" value="mpsProject" />
+        <node concept="3uibUv" id="3ApArNFD4AL" role="1tU5fm">
+          <ref role="3uigEE" to="z1c3:~MPSProject" resolve="MPSProject" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="3ApArNFD4pQ" role="3clF47" />
+      <node concept="3Tm1VV" id="3ApArNFD4pR" role="1B3o_S" />
+      <node concept="3cqZAl" id="3ApArNFD4oV" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="3ApArNFD4P2" role="jymVt" />
+    <node concept="3clFb_" id="3ApArNFJXkK" role="jymVt">
+      <property role="TrG5h" value="setNode" />
+      <node concept="3clFbS" id="3ApArNFJXkN" role="3clF47" />
+      <node concept="3Tm1VV" id="3ApArNFJXkO" role="1B3o_S" />
+      <node concept="3cqZAl" id="3ApArNFJXjs" role="3clF45" />
+      <node concept="37vLTG" id="3ApArNFJXTE" role="3clF46">
+        <property role="TrG5h" value="node" />
+        <node concept="3Tqbb2" id="3ApArNFJXTD" role="1tU5fm" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="3ApArNFJWTz" role="jymVt" />
+    <node concept="3clFb_" id="3ApArNFD4Nv" role="jymVt">
+      <property role="TrG5h" value="isApplicable" />
+      <node concept="3clFbS" id="3ApArNFBSd8" role="3clF47" />
+      <node concept="37vLTG" id="3ApArNFBSdb" role="3clF46">
+        <property role="TrG5h" value="event" />
+        <node concept="3uibUv" id="3ApArNFBSdc" role="1tU5fm">
+          <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
+        </node>
+      </node>
+      <node concept="10P_77" id="3ApArNFBSd6" role="3clF45" />
+      <node concept="3Tm1VV" id="3ApArNFBSdg" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="3ApArNFD4D1" role="jymVt" />
+    <node concept="3clFb_" id="3ApArNFBZx6" role="jymVt">
+      <property role="TrG5h" value="execute" />
+      <node concept="37vLTG" id="3ApArNFC20D" role="3clF46">
+        <property role="TrG5h" value="event" />
+        <node concept="3uibUv" id="3ApArNFC20E" role="1tU5fm">
+          <ref role="3uigEE" to="qkt:~AnActionEvent" resolve="AnActionEvent" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="3ApArNFBZx9" role="3clF47" />
+      <node concept="3Tm1VV" id="3ApArNFBZxa" role="1B3o_S" />
+      <node concept="3cqZAl" id="3ApArNFBZws" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="3ApArNFAR3Z" role="jymVt" />
+    <node concept="3Tm1VV" id="3ApArNFAIPu" role="1B3o_S" />
+  </node>
+  <node concept="312cEu" id="3ApArNFARAE">
+    <property role="TrG5h" value="AbstractTraceExplorerAction" />
+    <property role="1sVAO0" value="true" />
+    <node concept="312cEg" id="3ApArNFASVW" role="jymVt">
+      <property role="TrG5h" value="ideaProject" />
+      <node concept="3Tmbuc" id="3ApArNFAZl5" role="1B3o_S" />
+      <node concept="3uibUv" id="3ApArNFASVY" role="1tU5fm">
+        <ref role="3uigEE" to="4nm9:~Project" resolve="Project" />
+      </node>
+    </node>
+    <node concept="312cEg" id="3ApArNFASVZ" role="jymVt">
+      <property role="TrG5h" value="mpsProject" />
+      <node concept="3Tmbuc" id="3ApArNFAZvE" role="1B3o_S" />
+      <node concept="3uibUv" id="3ApArNFASW1" role="1tU5fm">
+        <ref role="3uigEE" to="z1c3:~MPSProject" resolve="MPSProject" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="3ApArNFAS$I" role="jymVt" />
+    <node concept="2tJIrI" id="3ApArNFBgAL" role="jymVt" />
+    <node concept="3clFbW" id="3ApArNFASzH" role="jymVt">
+      <node concept="3cqZAl" id="3ApArNFASzJ" role="3clF45" />
+      <node concept="3Tm1VV" id="3ApArNFASzK" role="1B3o_S" />
+      <node concept="3clFbS" id="3ApArNFASzL" role="3clF47" />
+    </node>
+    <node concept="2tJIrI" id="3ApArNFATw0" role="jymVt" />
+    <node concept="3clFb_" id="3ApArNFDl1Z" role="jymVt">
+      <property role="TrG5h" value="initialize" />
+      <node concept="37vLTG" id="3ApArNFAS$7" role="3clF46">
+        <property role="TrG5h" value="ideaProject" />
+        <node concept="3uibUv" id="3ApArNFAS$8" role="1tU5fm">
+          <ref role="3uigEE" to="4nm9:~Project" resolve="Project" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="3ApArNFAS$9" role="3clF46">
+        <property role="TrG5h" value="mpsProject" />
+        <node concept="3uibUv" id="3ApArNFAS$a" role="1tU5fm">
+          <ref role="3uigEE" to="z1c3:~MPSProject" resolve="MPSProject" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="3ApArNFDl22" role="3clF47">
+        <node concept="3clFbF" id="3ApArNFATjD" role="3cqZAp">
+          <node concept="37vLTI" id="3ApArNFATjE" role="3clFbG">
+            <node concept="37vLTw" id="3ApArNFATjF" role="37vLTx">
+              <ref role="3cqZAo" node="3ApArNFAS$7" resolve="ideaProject" />
+            </node>
+            <node concept="2OqwBi" id="3ApArNFATjG" role="37vLTJ">
+              <node concept="Xjq3P" id="3ApArNFATjH" role="2Oq$k0" />
+              <node concept="2OwXpG" id="3ApArNFATjI" role="2OqNvi">
+                <ref role="2Oxat5" node="3ApArNFASVW" resolve="ideaProject" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="3ApArNFATjL" role="3cqZAp">
+          <node concept="37vLTI" id="3ApArNFATjM" role="3clFbG">
+            <node concept="37vLTw" id="3ApArNFATjN" role="37vLTx">
+              <ref role="3cqZAo" node="3ApArNFAS$9" resolve="mpsProject" />
+            </node>
+            <node concept="2OqwBi" id="3ApArNFATjO" role="37vLTJ">
+              <node concept="Xjq3P" id="3ApArNFATjP" role="2Oq$k0" />
+              <node concept="2OwXpG" id="3ApArNFATjQ" role="2OqNvi">
+                <ref role="2Oxat5" node="3ApArNFASVZ" resolve="mpsProject" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="3ApArNFDkuD" role="1B3o_S" />
+      <node concept="3cqZAl" id="3ApArNFDl1Q" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="3ApArNFATFJ" role="jymVt" />
+    <node concept="3Tm1VV" id="3ApArNFARAF" role="1B3o_S" />
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/org.iets3.core.expr.plugin.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/org.iets3.core.expr.plugin.msd
index 740f96c386..b3eeee83c6 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/org.iets3.core.expr.plugin.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.plugin/org.iets3.core.expr.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.plugin" uuid="cbb71b24-470d-4374-b77c-ebd0d3b3bb27" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.plugin" uuid="cbb71b24-470d-4374-b77c-ebd0d3b3bb27" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">735f86bc-17fb-4d1c-a664-82c2b8e8a34e(com.mbeddr.mpsutil.interpreter.rt)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -29,13 +28,13 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:63650c59-16c8-498a-99c8-005c7ee9515d:jetbrains.mps.lang.access" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:18bc6592-03a6-4e29-a83a-7ff23bde13ba:jetbrains.mps.lang.editor" version="14" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/models/plugin.mps
index 95a6772de6..9af9f8f353 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -78,7 +78,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -152,7 +152,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/org.iets3.core.expr.process.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/org.iets3.core.expr.process.interpreter.msd
index 627033ed29..786dcac5d2 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/org.iets3.core.expr.process.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.process.interpreter/org.iets3.core.expr.process.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.process.interpreter" uuid="0a9d9bba-15ce-45fa-ba85-2c2dddcd1ff0" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.process.interpreter" uuid="0a9d9bba-15ce-45fa-ba85-2c2dddcd1ff0" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">1c56daef-6a92-4d68-8014-fbbd0240d553(org.iets3.core.expr.mutable.interpreter)</dependency>
     <dependency reexport="false">50b470e7-14ad-46c3-b540-4586f56d2e9c(org.iets3.core.expr.process)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/models/org.iets3.core.expr.query.interpreter.plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/models/org.iets3.core.expr.query.interpreter.plugin.mps
index 8356260e3b..b83c4d142f 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/models/org.iets3.core.expr.query.interpreter.plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/models/org.iets3.core.expr.query.interpreter.plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="af65afd8-f0dd-4942-87d9-63a55f2a9db1" name="jetbrains.mps.lang.behavior" version="2" />
   </languages>
@@ -96,7 +96,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -144,7 +144,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/org.iets3.core.expr.query.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/org.iets3.core.expr.query.interpreter.msd
index 1ed218d186..c66d47a308 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/org.iets3.core.expr.query.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.query.interpreter/org.iets3.core.expr.query.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.query.interpreter" uuid="559a13ae-59fa-4b70-a9f1-3ea16a0e218f" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.query.interpreter" uuid="559a13ae-59fa-4b70-a9f1-3ea16a0e218f" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:af65afd8-f0dd-4942-87d9-63a55f2a9db1:jetbrains.mps.lang.behavior" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/models/plugin.mps
index bc76e2f8d7..f3a72fa257 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -90,7 +90,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -145,6 +145,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -179,7 +180,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -201,7 +202,6 @@
       <concept id="1153944233411" name="jetbrains.mps.baseLanguage.collections.structure.ForEachVariableReference" flags="nn" index="2GrUjf">
         <reference id="1153944258490" name="variable" index="2Gs0qQ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
@@ -343,7 +343,7 @@
                                 <node concept="10Nm6u" id="3_Nra3Ea5Wu" role="3uHU7w" />
                                 <node concept="2OqwBi" id="3_Nra3Ea5cb" role="3uHU7B">
                                   <node concept="37vLTw" id="3_Nra3Ea51Q" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="3_Nra3Ea4Vd" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817nW" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="3_Nra3Ea5tW" role="2OqNvi">
                                     <ref role="3Tt5mk" to="wtll:5xEoEMrmiVo" resolve="expr" />
@@ -352,9 +352,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="3_Nra3Ea4Vd" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817nW" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="3_Nra3Ea4Ve" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817nX" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/org.iets3.core.expr.repl.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/org.iets3.core.expr.repl.interpreter.msd
index 9bd2999395..2f590f0580 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/org.iets3.core.expr.repl.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.interpreter/org.iets3.core.expr.repl.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.repl.interpreter" uuid="bd5d2f0b-399d-4cb7-b981-7a3f9ce7bc78" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.repl.interpreter" uuid="bd5d2f0b-399d-4cb7-b981-7a3f9ce7bc78" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">18001c94-33a7-4f68-a7c1-ffddc4b39be1(org.iets3.core.expr.repl)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -24,7 +23,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/models/org/iets3/core/expr/repl/plugin/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/models/org/iets3/core/expr/repl/plugin/plugin.mps
index 15c97a51f2..20e3cab5fa 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/models/org/iets3/core/expr/repl/plugin/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/models/org/iets3/core/expr/repl/plugin/plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:30a02cdb-e4b8-4d67-ad0c-3a3b7f24540c(org.iets3.core.expr.repl.plugin.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor" version="14" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -24,6 +24,7 @@
       </concept>
       <concept id="1203071646776" name="jetbrains.mps.lang.plugin.structure.ActionDeclaration" flags="ng" index="sE7Ow">
         <property id="1205250923097" name="caption" index="2uzpH1" />
+        <property id="4692598989365753297" name="updateInBackground" index="1rBW0U" />
         <child id="1203083196627" name="updateBlock" index="tmbBb" />
         <child id="1203083461638" name="executeFunction" index="tncku" />
         <child id="1217413222820" name="parameter" index="1NuT2Z" />
@@ -37,7 +38,7 @@
       <concept id="1562714432501166197" name="jetbrains.mps.lang.plugin.structure.KeymapChangesDeclaration" flags="ng" index="Zd50a">
         <child id="1562714432501166199" name="shortcutChange" index="Zd508" />
       </concept>
-      <concept id="6193305307616715384" name="jetbrains.mps.lang.plugin.structure.ShortcutChange" flags="ng" index="1bYyw_">
+      <concept id="6193305307616715384" name="jetbrains.mps.lang.plugin.structure.ShortcutChange" flags="ngI" index="1bYyw_">
         <reference id="6193305307616734326" name="action" index="1bYAoF" />
       </concept>
       <concept id="1206092561075" name="jetbrains.mps.lang.plugin.structure.ActionParameterReferenceOperation" flags="nn" index="3gHZIF" />
@@ -46,7 +47,7 @@
         <reference id="1217252646389" name="key" index="1DUlNI" />
       </concept>
       <concept id="1217252428768" name="jetbrains.mps.lang.plugin.structure.ActionDataParameterReferenceOperation" flags="nn" index="1DTwFV" />
-      <concept id="1217413147516" name="jetbrains.mps.lang.plugin.structure.ActionParameter" flags="ng" index="1NuADB">
+      <concept id="1217413147516" name="jetbrains.mps.lang.plugin.structure.ActionParameter" flags="ngI" index="1NuADB">
         <child id="5538333046911298738" name="condition" index="1oa70y" />
       </concept>
     </language>
@@ -148,7 +149,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -167,13 +168,14 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -181,7 +183,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
     </language>
@@ -240,7 +242,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -261,7 +263,6 @@
       </concept>
       <concept id="1235566554328" name="jetbrains.mps.baseLanguage.collections.structure.AnyOperation" flags="nn" index="2HwmR7" />
       <concept id="1227022210526" name="jetbrains.mps.baseLanguage.collections.structure.ClearAllElementsOperation" flags="nn" index="2Kehj3" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
@@ -287,6 +288,7 @@
   <node concept="sE7Ow" id="3FexrMiQJ5z">
     <property role="TrG5h" value="openREPL" />
     <property role="2uzpH1" value="Open REPL for Node" />
+    <property role="1rBW0U" value="true" />
     <node concept="2S4$dB" id="31wEG_giQ1F" role="1NuT2Z">
       <property role="TrG5h" value="selected" />
       <node concept="3Tm6S6" id="31wEG_giQ1G" role="1B3o_S" />
@@ -327,6 +329,7 @@
   <node concept="sE7Ow" id="3FexrMiRon9">
     <property role="TrG5h" value="InlineNode" />
     <property role="2uzpH1" value="Open REPL for Node" />
+    <property role="1rBW0U" value="true" />
     <node concept="2S4$dB" id="3FexrMiRona" role="1NuT2Z">
       <property role="TrG5h" value="selected" />
       <node concept="3Tm6S6" id="3FexrMiRonb" role="1B3o_S" />
@@ -741,6 +744,7 @@
     <property role="TrG5h" value="PressF3" />
     <property role="2uzpH1" value="Highlight Outgoing Deps" />
     <property role="3GE5qa" value="f2" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="1mFXz_FXKg5" role="tncku">
       <node concept="3clFbS" id="1mFXz_FXKg6" role="2VODD2">
         <node concept="3clFbJ" id="1mFXz_FYnfj" role="3cqZAp">
@@ -1192,6 +1196,7 @@
     <property role="TrG5h" value="PressShiftF3" />
     <property role="2uzpH1" value="Highlight Incoming Deps" />
     <property role="3GE5qa" value="f2" />
+    <property role="1rBW0U" value="true" />
     <node concept="tnohg" id="1mFXz_G2Fl4" role="tncku">
       <node concept="3clFbS" id="1mFXz_G2Fl5" role="2VODD2">
         <node concept="3clFbJ" id="1mFXz_G2Fl6" role="3cqZAp">
@@ -1274,7 +1279,7 @@
                         <node concept="2OqwBi" id="1mFXz_G2Tdq" role="3clFbG">
                           <node concept="2OqwBi" id="1mFXz_G2SDg" role="2Oq$k0">
                             <node concept="37vLTw" id="1mFXz_G2SuZ" role="2Oq$k0">
-                              <ref role="3cqZAo" node="1mFXz_G2Sl8" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817nY" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="1mFXz_G2SS2" role="2OqNvi">
                               <ref role="3Tt5mk" to="wtll:5xEoEMrmiVo" resolve="expr" />
@@ -1284,9 +1289,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="1mFXz_G2Sl8" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817nY" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="1mFXz_G2Sl9" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817nZ" role="1tU5fm" />
                     </node>
                   </node>
                 </node>
@@ -1330,7 +1335,7 @@
                               </node>
                               <node concept="2OqwBi" id="1mFXz_G34hU" role="3uHU7B">
                                 <node concept="37vLTw" id="1mFXz_G3465" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="1mFXz_G33MS" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817o0" resolve="it" />
                                 </node>
                                 <node concept="2qgKlT" id="1mFXz_G34yw" role="2OqNvi">
                                   <ref role="37wK5l" to="31n1:5xEoEMrDTcu" resolve="resolve" />
@@ -1339,9 +1344,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="1mFXz_G33MS" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817o0" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="1mFXz_G33MT" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817o1" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/org.iets3.core.expr.repl.plugin.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/org.iets3.core.expr.repl.plugin.msd
index 68bf394802..ff490c4323 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/org.iets3.core.expr.repl.plugin.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.repl.plugin/org.iets3.core.expr.repl.plugin.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.repl.plugin" uuid="1157d4c9-6175-4550-96aa-aae0a9fdc06f" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.repl.plugin" uuid="1157d4c9-6175-4550-96aa-aae0a9fdc06f" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">18001c94-33a7-4f68-a7c1-ffddc4b39be1(org.iets3.core.expr.repl)</dependency>
     <dependency reexport="false">1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)</dependency>
@@ -20,11 +19,11 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:18bc6592-03a6-4e29-a83a-7ff23bde13ba:jetbrains.mps.lang.editor" version="14" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:c72da2b9-7cce-4447-8389-f407dc1158b7:jetbrains.mps.lang.structure" version="9" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/models/plugin.mps
index 711977a16a..143721469a 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
@@ -133,7 +133,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -246,7 +246,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -2494,6 +2494,9 @@
             <node concept="3clFbH" id="4EEJFuvbZoo" role="3cqZAp" />
             <node concept="3cpWs6" id="26cjRACQHvo" role="3cqZAp">
               <node concept="2OqwBi" id="26cjRACS1W8" role="3cqZAk">
+                <node concept="liA8E" id="26cjRACS2eo" role="2OqNvi">
+                  <ref role="37wK5l" to="xfg9:26cjRABQZG3" resolve="run" />
+                </node>
                 <node concept="2ShNRf" id="26cjRACQHvp" role="2Oq$k0">
                   <node concept="1pGfFk" id="26cjRACQHvq" role="2ShVmc">
                     <ref role="37wK5l" to="xfg9:3nVyItrYQU_" resolve="NixSupport" />
@@ -2509,9 +2512,6 @@
                     </node>
                   </node>
                 </node>
-                <node concept="liA8E" id="26cjRACS2eo" role="2OqNvi">
-                  <ref role="37wK5l" to="xfg9:26cjRABQZG3" resolve="run" />
-                </node>
               </node>
             </node>
           </node>
@@ -2722,6 +2722,9 @@
             <node concept="3clFbH" id="4EEJFuvcxup" role="3cqZAp" />
             <node concept="3cpWs6" id="26cjRACQxZW" role="3cqZAp">
               <node concept="2OqwBi" id="26cjRACS2q1" role="3cqZAk">
+                <node concept="liA8E" id="26cjRACS2Be" role="2OqNvi">
+                  <ref role="37wK5l" to="xfg9:26cjRABQZG3" resolve="run" />
+                </node>
                 <node concept="2ShNRf" id="26cjRACQxZX" role="2Oq$k0">
                   <node concept="1pGfFk" id="26cjRACQxZY" role="2ShVmc">
                     <ref role="37wK5l" to="xfg9:3nVyItrYQU_" resolve="NixSupport" />
@@ -2737,9 +2740,6 @@
                     </node>
                   </node>
                 </node>
-                <node concept="liA8E" id="26cjRACS2Be" role="2OqNvi">
-                  <ref role="37wK5l" to="xfg9:26cjRABQZG3" resolve="run" />
-                </node>
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/org.iets3.core.expr.simpleTypes.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/org.iets3.core.expr.simpleTypes.interpreter.msd
index eefebc20d7..e221df0e0c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/org.iets3.core.expr.simpleTypes.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.interpreter/org.iets3.core.expr.simpleTypes.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.simpleTypes.interpreter" uuid="197e2a32-ff26-4358-af5c-731ae2b35f83" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.simpleTypes.interpreter" uuid="197e2a32-ff26-4358-af5c-731ae2b35f83" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
@@ -32,7 +31,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/models/org.iets3.core.expr.simpleTypes.runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/models/org.iets3.core.expr.simpleTypes.runtime.mps
index efd9ec2e0f..92309476db 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/models/org.iets3.core.expr.simpleTypes.runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/models/org.iets3.core.expr.simpleTypes.runtime.mps
@@ -2,11 +2,11 @@
 <model ref="r:59d52af6-663b-49dc-8980-30d79b8dffa1(org.iets3.core.expr.simpleTypes.runtime)">
   <persistence version="9" />
   <languages>
-    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
-    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
-    <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
+    <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="-1" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
   </languages>
   <imports>
     <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" />
@@ -48,7 +48,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
@@ -97,7 +97,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -158,7 +158,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -181,7 +181,7 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -230,7 +230,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/org.iets3.core.expr.simpleTypes.runtime.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/org.iets3.core.expr.simpleTypes.runtime.msd
index 3c2ebcdc5e..df37f1fd4f 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/org.iets3.core.expr.simpleTypes.runtime.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.simpleTypes.runtime/org.iets3.core.expr.simpleTypes.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.simpleTypes.runtime" uuid="52a8c4c0-f4b0-4243-bf00-9dfac3472876" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.simpleTypes.runtime" uuid="52a8c4c0-f4b0-4243-bf00-9dfac3472876" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">00ca1323-762b-4f39-ab5a-6a6bd602dc4b(org.iets3.core.expr.base.shared.runtime)</dependency>
@@ -19,7 +18,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/models/plugin.mps
index a955bf4885..df297cf514 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
   </languages>
   <imports>
@@ -82,7 +82,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -135,7 +135,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/org.iets3.core.expr.statemachines.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/org.iets3.core.expr.statemachines.interpreter.msd
index bebdf0e38d..c241a77726 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/org.iets3.core.expr.statemachines.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.statemachines.interpreter/org.iets3.core.expr.statemachines.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.statemachines.interpreter" uuid="b10553c8-9d54-444d-bb92-a27be823b74f" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.statemachines.interpreter" uuid="b10553c8-9d54-444d-bb92-a27be823b74f" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cd87ddab-6434-448e-a011-1e1c898de18e(org.iets3.core.expr.statemachines)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/models/org.iets3.core.expr.stringvalidation.interpreter.plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/models/org.iets3.core.expr.stringvalidation.interpreter.plugin.mps
index be99d4d242..8be14f91d4 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/models/org.iets3.core.expr.stringvalidation.interpreter.plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/models/org.iets3.core.expr.stringvalidation.interpreter.plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
   </languages>
@@ -63,7 +63,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -98,6 +98,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -113,7 +114,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -125,7 +126,6 @@
         <child id="1151688676805" name="elementType" index="_ZDj9" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
         <child id="1197932505799" name="map" index="3ElQJh" />
@@ -229,7 +229,7 @@
                               <node concept="3clFbF" id="5wF$o0BESlN" role="3cqZAp">
                                 <node concept="2OqwBi" id="5wF$o0BESlO" role="3clFbG">
                                   <node concept="37vLTw" id="5wF$o0BESlP" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="5wF$o0BESlR" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817o2" resolve="it" />
                                   </node>
                                   <node concept="2qgKlT" id="5wF$o0BESlQ" role="2OqNvi">
                                     <ref role="37wK5l" to="lxua:5wF$o0BEPkN" resolve="makeX" />
@@ -237,9 +237,9 @@
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="5wF$o0BESlR" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817o2" role="1bW2Oz">
                               <property role="TrG5h" value="it" />
-                              <node concept="2jxLKc" id="5wF$o0BESlS" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817o3" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/org.iets3.core.expr.stringvalidation.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/org.iets3.core.expr.stringvalidation.interpreter.msd
index af20e23d2a..ebfddfbebd 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/org.iets3.core.expr.stringvalidation.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.interpreter/org.iets3.core.expr.stringvalidation.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.stringvalidation.interpreter" uuid="ad2cd2ae-226c-4046-9241-9790f9c3a35e" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.stringvalidation.interpreter" uuid="ad2cd2ae-226c-4046-9241-9790f9c3a35e" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">f003a0fe-c140-41d7-a145-ea42368e581c(org.iets3.core.expr.stringvalidation)</dependency>
     <dependency reexport="false">f38b69a3-1d33-4f9b-84e0-ac1095df2998(org.iets3.core.expr.stringvalidation.runtime)</dependency>
@@ -21,7 +20,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/models/org.iets3.core.expr.stringvalidation.runtime.runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/models/org.iets3.core.expr.stringvalidation.runtime.runtime.mps
index 7d414a6619..1e916628f6 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/models/org.iets3.core.expr.stringvalidation.runtime.runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/models/org.iets3.core.expr.stringvalidation.runtime.runtime.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <languages>
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="be5191a9-3476-47ca-b2a7-a426623add55" name="org.iets3.core.assessment" version="0" />
   </languages>
@@ -168,7 +168,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -191,7 +191,7 @@
         <child id="8276990574909234106" name="finallyBody" index="1wplMD" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -215,6 +215,7 @@
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -224,7 +225,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -257,7 +258,6 @@
       <concept id="1227022196108" name="jetbrains.mps.baseLanguage.collections.structure.RemoveAtElementOperation" flags="nn" index="2KedMh">
         <child id="1227022274197" name="index" index="2KewY8" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="4611582986551314327" name="jetbrains.mps.baseLanguage.collections.structure.OfTypeOperation" flags="nn" index="UnYns">
@@ -2005,7 +2005,7 @@
                           <node concept="3clFbF" id="2LaXqmVKYpf" role="3cqZAp">
                             <node concept="2OqwBi" id="2LaXqmVKYpg" role="3clFbG">
                               <node concept="37vLTw" id="2LaXqmVKYph" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2LaXqmVKYpj" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817o4" resolve="it" />
                               </node>
                               <node concept="2OwXpG" id="2LaXqmVKYpi" role="2OqNvi">
                                 <ref role="2Oxat5" node="4lCUG7OtVap" resolve="whatWasFound" />
@@ -2013,9 +2013,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="2LaXqmVKYpj" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817o4" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="2LaXqmVKYpk" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817o5" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -2230,14 +2230,14 @@
                         <ref role="3cqZAo" node="2LaXqmXpWen" resolve="c" />
                       </node>
                       <node concept="37vLTw" id="2LaXqmXpZtf" role="3uHU7B">
-                        <ref role="3cqZAo" node="2LaXqmXpZs1" resolve="it" />
+                        <ref role="3cqZAo" node="4z0AnX817o6" resolve="it" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2LaXqmXpZs1" role="1bW2Oz">
+                <node concept="gl6BB" id="4z0AnX817o6" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2LaXqmXpZs2" role="1tU5fm" />
+                  <node concept="2jxLKc" id="4z0AnX817o7" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -2958,7 +2958,7 @@
                               <ref role="1Pybhc" node="4lCUG7OtWrX" resolve="Runtime" />
                               <node concept="2OqwBi" id="2LaXqmXq4Ra" role="37wK5m">
                                 <node concept="37vLTw" id="2LaXqmXq4KA" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2LaXqmXq4vF" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817o8" resolve="it" />
                                 </node>
                                 <node concept="2OwXpG" id="2LaXqmXq54J" role="2OqNvi">
                                   <ref role="2Oxat5" node="4lCUG7OtVap" resolve="whatWasFound" />
@@ -2967,9 +2967,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="2LaXqmXq4vF" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817o8" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="2LaXqmXq4vG" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817o9" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -6186,15 +6186,15 @@
                                     <ref role="3uigEE" node="5wF$o0BPZ8y" resolve="XMaxCountCheck" />
                                   </node>
                                   <node concept="37vLTw" id="5wF$o0BTX9H" role="2ZW6bz">
-                                    <ref role="3cqZAo" node="5wF$o0BTNt6" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817oa" resolve="it" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="5wF$o0BTNt6" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817oa" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="5wF$o0BTNt7" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817ob" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/org.iets3.core.expr.stringvalidation.runtime.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/org.iets3.core.expr.stringvalidation.runtime.msd
index 85fb837a26..b1cbb4bdce 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/org.iets3.core.expr.stringvalidation.runtime.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.stringvalidation.runtime/org.iets3.core.expr.stringvalidation.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.stringvalidation.runtime" uuid="f38b69a3-1d33-4f9b-84e0-ac1095df2998" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.stringvalidation.runtime" uuid="f38b69a3-1d33-4f9b-84e0-ac1095df2998" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">00ca1323-762b-4f39-ab5a-6a6bd602dc4b(org.iets3.core.expr.base.shared.runtime)</dependency>
@@ -25,7 +24,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/models/plugin.mps
index f14e2625a7..7d1895c8cc 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
@@ -123,7 +123,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -254,7 +254,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -442,13 +442,13 @@
                   <ref role="rqRob" to="l462:3rApyZ4E9We" resolve="value" />
                 </node>
                 <node concept="3EllGN" id="3rApyZ4ES0a" role="37vLTJ">
+                  <node concept="TvHiN" id="3rApyZ4ERGf" role="3ElQJh" />
                   <node concept="2OqwBi" id="3Q$zA1CBJyh" role="3ElVtu">
                     <node concept="35c_gC" id="3Q$zA1CBJiZ" role="2Oq$k0">
                       <ref role="35c_gD" to="l462:3rApyZ4E9Wd" resolve="DefaultSliceValueExpr" />
                     </node>
                     <node concept="FGMqu" id="3Q$zA1CBJIW" role="2OqNvi" />
                   </node>
-                  <node concept="TvHiN" id="3rApyZ4ERGf" role="3ElQJh" />
                 </node>
               </node>
             </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/org.iets3.core.expr.temporal.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/org.iets3.core.expr.temporal.interpreter.msd
index 18917b6dad..8ad774734e 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/org.iets3.core.expr.temporal.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.interpreter/org.iets3.core.expr.temporal.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.temporal.interpreter" uuid="06aa4a64-087b-49de-99ac-5bfea95ff839" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.temporal.interpreter" uuid="06aa4a64-087b-49de-99ac-5bfea95ff839" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">4621d3e3-b8a3-4bbe-b7ac-234b6e2d1d68(org.iets3.core.expr.temporal)</dependency>
@@ -29,7 +28,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/models/org.iets3.core.expr.temporal.runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/models/org.iets3.core.expr.temporal.runtime.mps
index bb693e1c7f..f2d2f6f97e 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/models/org.iets3.core.expr.temporal.runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/models/org.iets3.core.expr.temporal.runtime.mps
@@ -37,7 +37,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -101,7 +101,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -167,7 +167,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -198,7 +198,7 @@
       <concept id="1214918975462" name="jetbrains.mps.baseLanguage.structure.PostfixDecrementExpression" flags="nn" index="3uO5VW" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -224,7 +224,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="779128492853369165" name="jetbrains.mps.lang.core.structure.SideTransformInfo" flags="ng" index="1KehLL">
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/org.iets3.core.expr.temporal.runtime.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/org.iets3.core.expr.temporal.runtime.msd
index 58ac716a18..f8ee3238e3 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/org.iets3.core.expr.temporal.runtime.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.temporal.runtime/org.iets3.core.expr.temporal.runtime.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.temporal.runtime" uuid="17ecc6b6-d106-4b60-87a9-3fde52f92301" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.temporal.runtime" uuid="17ecc6b6-d106-4b60-87a9-3fde52f92301" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">957f018c-4561-4081-9ad3-b8618bf1160d(org.iets3.core.expr.datetime.runtime)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/models/plugin.mps
index 490f857ef5..724f864ea4 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/models/plugin.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
   </languages>
@@ -76,7 +76,7 @@
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -134,7 +134,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/org.iets3.core.expr.tests.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/org.iets3.core.expr.tests.interpreter.msd
index bd0a921ff9..c3c57efe6f 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/org.iets3.core.expr.tests.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.interpreter/org.iets3.core.expr.tests.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.tests.interpreter" uuid="7a4a0378-45ed-4612-99b5-b72416acc630" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.tests.interpreter" uuid="7a4a0378-45ed-4612-99b5-b72416acc630" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cf90f965-8554-4a16-aa0b-6387f27474ab(org.iets3.core.expr.base.interpreter)</dependency>
     <dependency reexport="false">d441fba0-f46b-43cd-b723-dad7b65da615(org.iets3.core.expr.tests)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/models/runtime.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/models/runtime.mps
index 5adcba3c93..cfa70d60d2 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/models/runtime.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/models/runtime.mps
@@ -9,6 +9,7 @@
     <import index="av4b" ref="r:ba7faab6-2b80-43d5-8b95-0c440665312c(org.iets3.core.expr.tests.structure)" />
     <import index="xk6s" ref="r:7961970e-5737-42e2-b144-9bef3ad8d077(org.iets3.core.expr.tests.behavior)" />
     <import index="oq0c" ref="r:6c6155f0-4bbe-4af5-8c26-244d570e21e4(org.iets3.core.expr.base.plugin)" implicit="true" />
+    <import index="gdgh" ref="r:e4d9478b-ae0e-416e-be60-73d136571015(org.iets3.core.base.behavior)" implicit="true" />
   </imports>
   <registry>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
@@ -52,7 +53,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
@@ -64,7 +65,7 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -77,7 +78,7 @@
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
-      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ng" index="3_9gw8">
+      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ngI" index="3_9gw8">
         <child id="1172075534298" name="message" index="3_9lra" />
       </concept>
     </language>
@@ -88,7 +89,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -111,7 +112,7 @@
           <node concept="3cpWsn" id="7wjZwvOaSeT" role="3cpWs9">
             <property role="TrG5h" value="executeTest" />
             <node concept="3uibUv" id="7wjZwvOaSeP" role="1tU5fm">
-              <ref role="3uigEE" to="xk6s:ub9nkyOIeW" resolve="EvalResult" />
+              <ref role="3uigEE" to="xk6s:7LZDtvgGNLS" resolve="IEvalResult" />
             </node>
             <node concept="2OqwBi" id="7wjZwvOaSeU" role="33vP2m">
               <node concept="37vLTw" id="7wjZwvOaSeV" role="2Oq$k0">
@@ -133,7 +134,7 @@
                       <ref role="3cqZAo" node="7wjZwvOaSeT" resolve="executeTest" />
                     </node>
                     <node concept="liA8E" id="7wjZwvOaTQc" role="2OqNvi">
-                      <ref role="37wK5l" to="xk6s:ub9nkyPUM2" resolve="getErrorMessage" />
+                      <ref role="37wK5l" to="xk6s:7LZDtvgPNBR" resolve="getErrorMessage" />
                     </node>
                   </node>
                   <node concept="liA8E" id="2LEfNl_JZko" role="2OqNvi">
@@ -149,7 +150,7 @@
                 <ref role="3cqZAo" node="7wjZwvOaSeT" resolve="executeTest" />
               </node>
               <node concept="liA8E" id="7wjZwvOaToa" role="2OqNvi">
-                <ref role="37wK5l" to="xk6s:ub9nkyPULV" resolve="isOk" />
+                <ref role="37wK5l" to="gdgh:5zG5$Lyex2e" resolve="isOk" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/org.iets3.core.expr.tests.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/org.iets3.core.expr.tests.rt.msd
index e7cfd40102..d5a9e9bdc7 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/org.iets3.core.expr.tests.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tests.rt/org.iets3.core.expr.tests.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.tests.rt" uuid="6effa8ea-ddf9-441a-a29e-80a73b7d0fc7" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.tests.rt" uuid="6effa8ea-ddf9-441a-a29e-80a73b7d0fc7" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,14 +10,13 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">d441fba0-f46b-43cd-b723-dad7b65da615(org.iets3.core.expr.tests)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/models/plugin.mps
index 3c42d1bbd6..0012e47988 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/models/plugin.mps
@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:fdc4a3a8-bc78-4f8e-a74a-27e64dd85f6d(org.iets3.core.expr.toplevel.interpreter.plugin)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="5" />
   </languages>
@@ -118,7 +119,7 @@
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -192,6 +193,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -239,7 +241,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -266,7 +268,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1162934736510" name="jetbrains.mps.baseLanguage.collections.structure.GetElementOperation" flags="nn" index="34jXtK" />
@@ -1019,12 +1020,12 @@
                 </node>
               </node>
               <node concept="2ZW3vV" id="3Y6fbK1jN9O" role="3clFbw">
-                <node concept="3uibUv" id="4$j2$kkckjq" role="2ZW6by">
-                  <ref role="3uigEE" to="pq1l:365yA_OO5FT" resolve="EnumLiteral" />
-                </node>
                 <node concept="37vLTw" id="3Y6fbK1jN9a" role="2ZW6bz">
                   <ref role="3cqZAo" node="c36CPs_RSU" resolve="val" />
                 </node>
+                <node concept="3uibUv" id="4$j2$kkckjq" role="2ZW6by">
+                  <ref role="3uigEE" to="pq1l:365yA_OO5FT" resolve="EnumLiteral" />
+                </node>
               </node>
             </node>
             <node concept="3cpWs6" id="3Y6fbK1iBzG" role="3cqZAp">
@@ -1088,12 +1089,12 @@
                 </node>
               </node>
               <node concept="2ZW3vV" id="c36CPs_OGg" role="3clFbw">
-                <node concept="3uibUv" id="4$j2$kkcCd6" role="2ZW6by">
-                  <ref role="3uigEE" to="pq1l:365yA_OO5FT" resolve="EnumLiteral" />
-                </node>
                 <node concept="37vLTw" id="c36CPs_OGi" role="2ZW6bz">
                   <ref role="3cqZAo" node="c36CPs_OG1" resolve="val" />
                 </node>
+                <node concept="3uibUv" id="4$j2$kkcCd6" role="2ZW6by">
+                  <ref role="3uigEE" to="pq1l:365yA_OO5FT" resolve="EnumLiteral" />
+                </node>
               </node>
             </node>
             <node concept="3cpWs6" id="c36CPs_OGj" role="3cqZAp">
@@ -2714,6 +2715,9 @@
               <node concept="3clFbS" id="6WstIz8RAkK" role="2LFqv$">
                 <node concept="3clFbJ" id="6WstIz8RBxl" role="3cqZAp">
                   <node concept="3clFbC" id="6WstIz8RB_7" role="3clFbw">
+                    <node concept="37vLTw" id="6WstIz8RBx$" role="3uHU7B">
+                      <ref role="3cqZAo" node="6WstIz8RA0$" resolve="ctx" />
+                    </node>
                     <node concept="2YIFZM" id="4$j2$kkixM6" role="3uHU7w">
                       <ref role="37wK5l" to="pq1l:4$j2$kkfRAe" resolve="getInstance" />
                       <ref role="1Pybhc" to="pq1l:365yA_OO5FT" resolve="EnumLiteral" />
@@ -2729,9 +2733,6 @@
                       <node concept="3fckFw" id="4$j2$kkiyP7" role="37wK5m" />
                       <node concept="2dz_u5" id="4$j2$kkiz21" role="37wK5m" />
                     </node>
-                    <node concept="37vLTw" id="6WstIz8RBx$" role="3uHU7B">
-                      <ref role="3cqZAo" node="6WstIz8RA0$" resolve="ctx" />
-                    </node>
                   </node>
                   <node concept="3clFbS" id="6WstIz8RBxn" role="3clFbx">
                     <node concept="3clFbF" id="3FGeL_$Ga5z" role="3cqZAp">
@@ -2768,16 +2769,16 @@
                               <node concept="liA8E" id="3FGeL_$Ge17" role="2OqNvi">
                                 <ref role="37wK5l" to="2ahs:RaqQlV4lZg" resolve="coverValue" />
                                 <node concept="37vLTw" id="3FGeL_$Ge9c" role="37wK5m">
-                                  <ref role="3cqZAo" node="3FGeL_$Gdp0" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817oc" resolve="it" />
                                 </node>
                                 <node concept="10Nm6u" id="3FGeL_$J3CX" role="37wK5m" />
                               </node>
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="3FGeL_$Gdp0" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817oc" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="3FGeL_$Gdp1" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817od" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/org.iets3.core.expr.toplevel.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/org.iets3.core.expr.toplevel.interpreter.msd
index 772b592b7b..e3821e3255 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/org.iets3.core.expr.toplevel.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.toplevel.interpreter/org.iets3.core.expr.toplevel.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.toplevel.interpreter" uuid="9c16e638-297e-41f0-b9e1-a1e04a4aea54" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.toplevel.interpreter" uuid="9c16e638-297e-41f0-b9e1-a1e04a4aea54" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">71934284-d7d1-45ee-a054-8c072591085f(org.iets3.core.expr.toplevel)</dependency>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
@@ -27,7 +26,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/models/org.iets3.core.expr.tracing.plugin.plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/models/org.iets3.core.expr.tracing.plugin.plugin.mps
index 0ecce09bf4..ba3f816f70 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/models/org.iets3.core.expr.tracing.plugin.plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/models/org.iets3.core.expr.tracing.plugin.plugin.mps
@@ -5,14 +5,14 @@
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access" version="0" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
     <use id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers" version="0" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="c7fb639f-be78-4307-89b0-b5959c3fa8c8" name="jetbrains.mps.lang.text" version="0" />
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="2" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="2" />
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="982eb8df-2c96-4bd7-9963-11712ea622e5" name="jetbrains.mps.lang.resources" version="2" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
@@ -104,6 +104,7 @@
       </concept>
       <concept id="1203071646776" name="jetbrains.mps.lang.plugin.structure.ActionDeclaration" flags="ng" index="sE7Ow">
         <property id="1205250923097" name="caption" index="2uzpH1" />
+        <property id="4692598989365753297" name="updateInBackground" index="1rBW0U" />
         <property id="997079742910640235" name="fillActionContext" index="1teQrl" />
         <child id="1203083196627" name="updateBlock" index="tmbBb" />
         <child id="1203083461638" name="executeFunction" index="tncku" />
@@ -130,7 +131,7 @@
       <concept id="1562714432501166197" name="jetbrains.mps.lang.plugin.structure.KeymapChangesDeclaration" flags="ng" index="Zd50a">
         <child id="1562714432501166199" name="shortcutChange" index="Zd508" />
       </concept>
-      <concept id="6193305307616715384" name="jetbrains.mps.lang.plugin.structure.ShortcutChange" flags="ng" index="1bYyw_">
+      <concept id="6193305307616715384" name="jetbrains.mps.lang.plugin.structure.ShortcutChange" flags="ngI" index="1bYyw_">
         <reference id="6193305307616734326" name="action" index="1bYAoF" />
       </concept>
       <concept id="1206092561075" name="jetbrains.mps.lang.plugin.structure.ActionParameterReferenceOperation" flags="nn" index="3gHZIF" />
@@ -141,7 +142,7 @@
       </concept>
       <concept id="1217252428768" name="jetbrains.mps.lang.plugin.structure.ActionDataParameterReferenceOperation" flags="nn" index="1DTwFV" />
       <concept id="1204478074808" name="jetbrains.mps.lang.plugin.structure.ConceptFunctionParameter_MPSProject" flags="nn" index="1KvdUw" />
-      <concept id="1217413147516" name="jetbrains.mps.lang.plugin.structure.ActionParameter" flags="ng" index="1NuADB">
+      <concept id="1217413147516" name="jetbrains.mps.lang.plugin.structure.ActionParameter" flags="ngI" index="1NuADB">
         <child id="5538333046911298738" name="condition" index="1oa70y" />
       </concept>
     </language>
@@ -179,7 +180,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -244,7 +245,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -311,7 +312,7 @@
         <child id="1154542793668" name="componentType" index="3g7fb8" />
         <child id="1154542803372" name="initValue" index="3g7hyw" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -338,7 +339,7 @@
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
@@ -399,6 +400,7 @@
       <concept id="8974276187400348177" name="jetbrains.mps.lang.access.structure.ExecuteCommandStatement" flags="nn" index="1QHqEO" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -431,7 +433,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769149993" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodCallOperation" flags="nn" index="2XshWL">
@@ -486,7 +488,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -534,7 +536,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -2811,7 +2812,7 @@
                       <node concept="1Wc70l" id="kZqQ80hiGK" role="3uHU7B">
                         <node concept="2OqwBi" id="kZqQ80hiGQ" role="3uHU7B">
                           <node concept="37vLTw" id="kZqQ80hiGR" role="2Oq$k0">
-                            <ref role="3cqZAo" node="kZqQ80hiGU" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1aEbE" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="kZqQ80hiGS" role="2OqNvi">
                             <node concept="chp4Y" id="kZqQ80hiGT" role="cj9EA">
@@ -2825,7 +2826,7 @@
                               <ref role="cht4Q" to="hm2y:7obiejCh8R2" resolve="ITraceRoot" />
                             </node>
                             <node concept="37vLTw" id="kZqQ80hiGO" role="1m5AlR">
-                              <ref role="3cqZAo" node="kZqQ80hiGU" resolve="it" />
+                              <ref role="3cqZAo" node="2FZhxW1aEbE" resolve="it" />
                             </node>
                           </node>
                           <node concept="2qgKlT" id="kZqQ80hiGP" role="2OqNvi">
@@ -2841,7 +2842,7 @@
                                 <ref role="cht4Q" to="hm2y:XblfskIwr9" resolve="IMultiTraceRoot" />
                               </node>
                               <node concept="37vLTw" id="4_BA2XOIPvt" role="1m5AlR">
-                                <ref role="3cqZAo" node="kZqQ80hiGU" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1aEbE" resolve="it" />
                               </node>
                             </node>
                             <node concept="2qgKlT" id="4_BA2XOIPvu" role="2OqNvi">
@@ -2852,7 +2853,7 @@
                         </node>
                         <node concept="2OqwBi" id="4_BA2XOIPvw" role="3uHU7B">
                           <node concept="37vLTw" id="4_BA2XOIPvx" role="2Oq$k0">
-                            <ref role="3cqZAo" node="kZqQ80hiGU" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1aEbE" resolve="it" />
                           </node>
                           <node concept="1mIQ4w" id="4_BA2XOIPvy" role="2OqNvi">
                             <node concept="chp4Y" id="4_BA2XOIPvz" role="cj9EA">
@@ -2864,9 +2865,9 @@
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="kZqQ80hiGU" role="1bW2Oz">
+                <node concept="gl6BB" id="2FZhxW1aEbE" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="kZqQ80hiGV" role="1tU5fm" />
+                  <node concept="2jxLKc" id="2FZhxW1aEbF" role="1tU5fm" />
                 </node>
               </node>
             </node>
@@ -3877,7 +3878,7 @@
                           <node concept="3clFbF" id="3ApArNFCjJI" role="3cqZAp">
                             <node concept="2OqwBi" id="3ApArNFCjJJ" role="3clFbG">
                               <node concept="37vLTw" id="3ApArNFCjJK" role="2Oq$k0">
-                                <ref role="3cqZAo" node="3ApArNFCjJM" resolve="it" />
+                                <ref role="3cqZAo" node="2FZhxW1aEbG" resolve="it" />
                               </node>
                               <node concept="liA8E" id="3ApArNFCjJL" role="2OqNvi">
                                 <ref role="37wK5l" to="jpm3:3ApArNFAK9d" resolve="getPriority" />
@@ -3885,9 +3886,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="3ApArNFCjJM" role="1bW2Oz">
+                        <node concept="gl6BB" id="2FZhxW1aEbG" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="3ApArNFCjJN" role="1tU5fm" />
+                          <node concept="2jxLKc" id="2FZhxW1aEbH" role="1tU5fm" />
                         </node>
                       </node>
                       <node concept="1nlBCl" id="3ApArNFCjJO" role="2S7zOq" />
@@ -4106,16 +4107,12 @@
     <property role="TrG5h" value="selectAllTraceNodeInCurrentTrace" />
     <property role="2uzpH1" value="Trace: select all traces of this node" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="1DS2jV" id="4yQfyMjvYR8" role="1NuT2Z">
       <property role="TrG5h" value="ideaProject" />
       <ref role="1DUlNI" to="qkt:~CommonDataKeys.PROJECT" resolve="PROJECT" />
       <node concept="1oajcY" id="4yQfyMjvYR9" role="1oa70y" />
     </node>
-    <node concept="1DS2jV" id="4yQfyMjvYRa" role="1NuT2Z">
-      <property role="TrG5h" value="mpsProject" />
-      <ref role="1DUlNI" to="qq03:~MPSCommonDataKeys.MPS_PROJECT" resolve="MPS_PROJECT" />
-      <node concept="1oajcY" id="4yQfyMjvYRb" role="1oa70y" />
-    </node>
     <node concept="2S4$dB" id="4yQfyMjvYRc" role="1NuT2Z">
       <property role="TrG5h" value="someNode" />
       <node concept="3Tm6S6" id="4yQfyMjvYRd" role="1B3o_S" />
@@ -4219,16 +4216,12 @@
     <property role="TrG5h" value="selectNextTraceNodeAndInspectSource" />
     <property role="2uzpH1" value="Trace: select next trace and inspect source" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="1DS2jV" id="2JfTTG8itTU" role="1NuT2Z">
       <property role="TrG5h" value="ideaProject" />
       <ref role="1DUlNI" to="qkt:~CommonDataKeys.PROJECT" resolve="PROJECT" />
       <node concept="1oajcY" id="2JfTTG8itTV" role="1oa70y" />
     </node>
-    <node concept="1DS2jV" id="2JfTTG8itTW" role="1NuT2Z">
-      <property role="TrG5h" value="mpsProject" />
-      <ref role="1DUlNI" to="qq03:~MPSCommonDataKeys.MPS_PROJECT" resolve="MPS_PROJECT" />
-      <node concept="1oajcY" id="2JfTTG8itTX" role="1oa70y" />
-    </node>
     <node concept="2S4$dB" id="2JfTTG8itTY" role="1NuT2Z">
       <property role="TrG5h" value="someNode" />
       <node concept="3Tm6S6" id="2JfTTG8itTZ" role="1B3o_S" />
@@ -4329,16 +4322,12 @@
     <property role="TrG5h" value="selectNextTraceNodeInCurrentTrace" />
     <property role="2uzpH1" value="Trace: select next trace of this node" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="1DS2jV" id="4yQfyMjrpAi" role="1NuT2Z">
       <property role="TrG5h" value="ideaProject" />
       <ref role="1DUlNI" to="qkt:~CommonDataKeys.PROJECT" resolve="PROJECT" />
       <node concept="1oajcY" id="4yQfyMjrpAj" role="1oa70y" />
     </node>
-    <node concept="1DS2jV" id="4yQfyMjrpAk" role="1NuT2Z">
-      <property role="TrG5h" value="mpsProject" />
-      <ref role="1DUlNI" to="qq03:~MPSCommonDataKeys.MPS_PROJECT" resolve="MPS_PROJECT" />
-      <node concept="1oajcY" id="4yQfyMjrpAl" role="1oa70y" />
-    </node>
     <node concept="2S4$dB" id="4yQfyMjrpAm" role="1NuT2Z">
       <property role="TrG5h" value="someNode" />
       <node concept="3Tm6S6" id="4yQfyMjrpAn" role="1B3o_S" />
@@ -4443,6 +4432,7 @@
     <property role="2uzpH1" value="Show Trace" />
     <property role="1teQrl" value="true" />
     <property role="3GE5qa" value="actions" />
+    <property role="1rBW0U" value="true" />
     <node concept="1DS2jV" id="1rUbSenCeC" role="1NuT2Z">
       <property role="TrG5h" value="ideaProject" />
       <ref role="1DUlNI" to="qkt:~CommonDataKeys.PROJECT" resolve="PROJECT" />
@@ -7789,7 +7779,7 @@
                           <node concept="3clFbC" id="2a_JeWFMP6I" role="3clFbG">
                             <node concept="2OqwBi" id="2a_JeWFMP6J" role="3uHU7B">
                               <node concept="37vLTw" id="2a_JeWFMP6K" role="2Oq$k0">
-                                <ref role="3cqZAo" node="2a_JeWFMP6N" resolve="it" />
+                                <ref role="3cqZAo" node="1xunj8akSFM" resolve="it" />
                               </node>
                               <node concept="3AV6Ez" id="2a_JeWFMP6L" role="2OqNvi" />
                             </node>
@@ -7799,9 +7789,9 @@
                           </node>
                         </node>
                       </node>
-                      <node concept="Rh6nW" id="2a_JeWFMP6N" role="1bW2Oz">
+                      <node concept="gl6BB" id="1xunj8akSFM" role="1bW2Oz">
                         <property role="TrG5h" value="it" />
-                        <node concept="2jxLKc" id="2a_JeWFMP6O" role="1tU5fm" />
+                        <node concept="2jxLKc" id="1xunj8akSFN" role="1tU5fm" />
                       </node>
                     </node>
                   </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/org.iets3.core.expr.tracing.plugin.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/org.iets3.core.expr.tracing.plugin.msd
index 5cb5e1eab2..503194223c 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/org.iets3.core.expr.tracing.plugin.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.tracing.plugin/org.iets3.core.expr.tracing.plugin.msd
@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.tracing.plugin" uuid="b0e7c6a8-b47d-4637-b0e8-e5bfd486c4e8" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.tracing.plugin" uuid="b0e7c6a8-b47d-4637-b0e8-e5bfd486c4e8" moduleVersion="0">
   <models>
-    <modelRoot contentPath="${module}" type="default">
+    <modelRoot type="default" contentPath="${module}">
       <sourceRoot location="models" />
     </modelRoot>
   </models>
   <facets>
-    <facet type="java">
+    <facet type="java" languageLevel="JAVA_10" compile="mps" classes="mps" ext="yes">
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">63c1aad1-e2db-439c-a30a-02b5e0bc80f3(org.iets3.core.expr.tracing)</dependency>
     <dependency reexport="false">8d29d73f-ed99-4652-ae0a-083cdfe53c34(jetbrains.mps.ide.platform)</dependency>
@@ -29,7 +28,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -38,7 +37,7 @@
     <language slang="l:18bc6592-03a6-4e29-a83a-7ff23bde13ba:jetbrains.mps.lang.editor" version="14" />
     <language slang="l:c0080a47-7e37-4558-bee9-9ae18e690549:jetbrains.mps.lang.extension" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:982eb8df-2c96-4bd7-9963-11712ea622e5:jetbrains.mps.lang.resources" version="2" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
@@ -90,7 +89,6 @@
     <module reference="7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)" version="1" />
     <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
-    <module reference="8fe4c62a-2020-4ff4-8eda-f322a55bdc9f(jetbrains.mps.refactoring.runtime)" version="0" />
     <module reference="db8bd035-3f51-41d8-8fed-954c202d18be(org.iets3.analysis.base)" version="1" />
     <module reference="7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)" version="0" />
     <module reference="cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)" version="4" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/models/plugin.mps
index 00657d6999..4ca5e62eb9 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/models/plugin.mps
@@ -78,7 +78,7 @@
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -92,7 +92,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -156,7 +156,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/org.iets3.core.expr.typetags.lib.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/org.iets3.core.expr.typetags.lib.interpreter.msd
index 3361423a54..f8cf8ec776 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/org.iets3.core.expr.typetags.lib.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.lib.interpreter/org.iets3.core.expr.typetags.lib.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.typetags.lib.interpreter" uuid="b4ec5624-2e67-4a4e-9ece-34bcbf966115" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.typetags.lib.interpreter" uuid="b4ec5624-2e67-4a4e-9ece-34bcbf966115" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
@@ -22,7 +21,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/models/org.iets3.core.expr.typetags.physunits.documentation.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/models/org.iets3.core.expr.typetags.physunits.documentation.mps
index e8013245db..14eff0f3a6 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/models/org.iets3.core.expr.typetags.physunits.documentation.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/models/org.iets3.core.expr.typetags.physunits.documentation.mps
@@ -27,7 +27,7 @@
       </concept>
     </language>
     <language id="7ee265bd-5986-4709-86ed-2c6daa33cd8c" name="org.iets3.core.expr.typetags.physunits">
-      <concept id="7387055326543332204" name="org.iets3.core.expr.typetags.physunits.structure.IHaveIUnitSpecification" flags="ng" index="4gtj2">
+      <concept id="7387055326543332204" name="org.iets3.core.expr.typetags.physunits.structure.IHaveIUnitSpecification" flags="ngI" index="4gtj2">
         <child id="7387055326543333921" name="specification" index="4gtQf" />
       </concept>
       <concept id="1741902046311368052" name="org.iets3.core.expr.typetags.physunits.structure.ConversionSpecifier" flags="ng" index="27LzZq">
@@ -95,7 +95,7 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -158,7 +158,7 @@
       <concept id="6165313375055797476" name="com.mbeddr.doc.structure.FormattedText" flags="ng" index="$DsGX">
         <child id="6165313375055797477" name="text" index="$DsGW" />
       </concept>
-      <concept id="6657644269295214799" name="com.mbeddr.doc.structure.IDocumentLike" flags="ng" index="G9hjZ">
+      <concept id="6657644269295214799" name="com.mbeddr.doc.structure.IDocumentLike" flags="ngI" index="G9hjZ">
         <reference id="6657644269295214800" name="config" index="G9hjw" />
       </concept>
       <concept id="2286331641395252232" name="com.mbeddr.doc.structure.NamedNodeModelContentPointerElement" flags="ng" index="2NCMab">
@@ -208,7 +208,7 @@
       <concept id="3350625596580089586" name="com.mbeddr.doc.structure.TextParagraph" flags="ng" index="1_0LV8">
         <child id="3350625596580089613" name="text" index="1_0LWR" />
       </concept>
-      <concept id="3350625596580064249" name="com.mbeddr.doc.structure.IDocContentContainer" flags="ng" index="1_0VJ3">
+      <concept id="3350625596580064249" name="com.mbeddr.doc.structure.IDocContentContainer" flags="ngI" index="1_0VJ3">
         <child id="3350625596580064250" name="contents" index="1_0VJ0" />
       </concept>
       <concept id="3350625596580064222" name="com.mbeddr.doc.structure.AbstractSection" flags="ng" index="1_0VJ$">
@@ -253,7 +253,7 @@
       <concept id="1759375669591494838" name="org.iets3.core.expr.typetags.structure.TaggedType" flags="ng" index="2c7tTJ">
         <child id="1759375669591494841" name="baseType" index="2c7tTw" />
       </concept>
-      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ng" index="3ciMKZ">
+      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ngI" index="3ciMKZ">
         <child id="1759375669591494839" name="tags" index="2c7tTI" />
       </concept>
       <concept id="3359996257534647723" name="org.iets3.core.expr.typetags.structure.TaggedExpression" flags="ng" index="1YnStw">
@@ -264,7 +264,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/org.iets3.core.expr.typetags.physunits.documentation.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/org.iets3.core.expr.typetags.physunits.documentation.msd
index e51972ba65..8bcfa3160b 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/org.iets3.core.expr.typetags.physunits.documentation.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.physunits.documentation/org.iets3.core.expr.typetags.physunits.documentation.msd
@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.typetags.physunits.documentation" uuid="9002631e-7e42-46da-88df-6577409bb437" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.typetags.physunits.documentation" uuid="9002631e-7e42-46da-88df-6577409bb437" moduleVersion="0">
   <models>
-    <modelRoot contentPath="${module}" type="default">
+    <modelRoot type="default" contentPath="${module}">
       <sourceRoot location="models" />
     </modelRoot>
   </models>
   <facets>
-    <facet type="java">
+    <facet type="java" languageLevel="JAVA_10" compile="mps" classes="mps" ext="no">
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">7ee265bd-5986-4709-86ed-2c6daa33cd8c(org.iets3.core.expr.typetags.physunits)</dependency>
   </dependencies>
@@ -28,7 +27,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/models/org.iets3.core.expr.typetags.phyunits.si.units.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/models/org.iets3.core.expr.typetags.phyunits.si.units.mps
index 66a791e01c..8c9018a32d 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/models/org.iets3.core.expr.typetags.phyunits.si.units.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/models/org.iets3.core.expr.typetags.phyunits.si.units.mps
@@ -9,7 +9,7 @@
   <imports />
   <registry>
     <language id="7ee265bd-5986-4709-86ed-2c6daa33cd8c" name="org.iets3.core.expr.typetags.physunits">
-      <concept id="7387055326543332204" name="org.iets3.core.expr.typetags.physunits.structure.IHaveIUnitSpecification" flags="ng" index="4gtj2">
+      <concept id="7387055326543332204" name="org.iets3.core.expr.typetags.physunits.structure.IHaveIUnitSpecification" flags="ngI" index="4gtj2">
         <child id="7387055326543333921" name="specification" index="4gtQf" />
       </concept>
       <concept id="1741902046311368052" name="org.iets3.core.expr.typetags.physunits.structure.ConversionSpecifier" flags="ng" index="27LzZq">
@@ -137,7 +137,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/org.iets3.core.expr.typetags.phyunits.si.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/org.iets3.core.expr.typetags.phyunits.si.msd
index aa5fbdcc01..51527b095e 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/org.iets3.core.expr.typetags.phyunits.si.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.phyunits.si/org.iets3.core.expr.typetags.phyunits.si.msd
@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.typetags.phyunits.si" uuid="86255e62-4839-480a-a7d0-9ee30f97e2d8" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.typetags.phyunits.si" uuid="86255e62-4839-480a-a7d0-9ee30f97e2d8" moduleVersion="0">
   <models>
-    <modelRoot contentPath="${module}" type="default">
+    <modelRoot type="default" contentPath="${module}">
       <sourceRoot location="models" />
     </modelRoot>
   </models>
   <facets>
-    <facet type="java">
+    <facet type="java" languageLevel="JAVA_10" compile="mps" classes="mps" ext="no">
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -22,7 +21,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/models/org.iets3.core.expr.typetags.units.interpreter.plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/models/org.iets3.core.expr.typetags.units.interpreter.plugin.mps
index a9b467359f..118ff6e348 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/models/org.iets3.core.expr.typetags.units.interpreter.plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/models/org.iets3.core.expr.typetags.units.interpreter.plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:fab092f1-cf48-4d80-ac99-7ec1d2e9a36b(org.iets3.core.expr.typetags.units.interpreter.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access" version="0" />
@@ -82,7 +82,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
@@ -92,7 +92,7 @@
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163670490218" name="jetbrains.mps.baseLanguage.structure.SwitchStatement" flags="nn" index="3KaCP$">
@@ -153,7 +153,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/org.iets3.core.expr.typetags.units.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/org.iets3.core.expr.typetags.units.interpreter.msd
index 1188cdd634..5c786f9d21 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/org.iets3.core.expr.typetags.units.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.interpreter/org.iets3.core.expr.typetags.units.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.typetags.units.interpreter" uuid="616c1a94-9ced-468d-8c3a-fbdcf9734823" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.typetags.units.interpreter" uuid="616c1a94-9ced-468d-8c3a-fbdcf9734823" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cb91a38e-738a-4811-a96d-448d08f526fa(org.iets3.core.expr.typetags.units)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -22,13 +21,13 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:63650c59-16c8-498a-99c8-005c7ee9515d:jetbrains.mps.lang.access" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:c0080a47-7e37-4558-bee9-9ae18e690549:jetbrains.mps.lang.extension" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/models/units.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/models/units.mps
index 567b1b57ae..b2a4b3d3a3 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/models/units.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/models/units.mps
@@ -65,7 +65,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/org.iets3.core.expr.typetags.units.si.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/org.iets3.core.expr.typetags.units.si.msd
index 6508736fd9..0287fecd80 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/org.iets3.core.expr.typetags.units.si.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.typetags.units.si/org.iets3.core.expr.typetags.units.si.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.typetags.units.si" uuid="1c761cfd-81b1-4794-9999-148fa76881b8" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.core.expr.typetags.units.si" uuid="1c761cfd-81b1-4794-9999-148fa76881b8" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -22,7 +21,7 @@
     <language slang="l:92d2ea16-5a42-4fdf-a676-c7604efe3504:de.slisson.mps.richtext" version="0" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/models/plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/models/plugin.mps
index af84fabdb3..692adc1cb2 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/models/plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/models/plugin.mps
@@ -5,7 +5,7 @@
   <languages>
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
     <use id="47f075a6-558e-4640-a606-7ce0236c8023" name="com.mbeddr.mpsutil.interpreter" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
@@ -147,7 +147,7 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -168,7 +168,7 @@
       </concept>
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
@@ -222,6 +222,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -280,7 +281,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -323,7 +324,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -673,7 +673,7 @@
                                   <node concept="2OqwBi" id="7FuUjk_r6Mq" role="3clFbG">
                                     <node concept="qpA2v" id="7FuUjk_r6Mr" role="2Oq$k0">
                                       <node concept="37vLTw" id="7FuUjk_r6Ms" role="3SLO0q">
-                                        <ref role="3cqZAo" node="7FuUjk_r6Mv" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817oe" resolve="it" />
                                       </node>
                                     </node>
                                     <node concept="liA8E" id="7FuUjk_r6Mt" role="2OqNvi">
@@ -685,9 +685,9 @@
                                   </node>
                                 </node>
                               </node>
-                              <node concept="Rh6nW" id="7FuUjk_r6Mv" role="1bW2Oz">
+                              <node concept="gl6BB" id="4z0AnX817oe" role="1bW2Oz">
                                 <property role="TrG5h" value="it" />
-                                <node concept="2jxLKc" id="7FuUjk_r6Mw" role="1tU5fm" />
+                                <node concept="2jxLKc" id="4z0AnX817of" role="1tU5fm" />
                               </node>
                             </node>
                           </node>
@@ -778,7 +778,7 @@
                                           <node concept="2OqwBi" id="7FuUjk_r6Nc" role="3SLO0q">
                                             <node concept="2OqwBi" id="7FuUjk_r6Nd" role="2Oq$k0">
                                               <node concept="37vLTw" id="7FuUjk_r6Ne" role="2Oq$k0">
-                                                <ref role="3cqZAo" node="7FuUjk_r6Nh" resolve="it" />
+                                                <ref role="3cqZAo" node="4z0AnX817og" resolve="it" />
                                               </node>
                                               <node concept="3Tsc0h" id="7FuUjk_r6Nf" role="2OqNvi">
                                                 <ref role="3TtcxE" to="kfo3:8XWEtdYkjo" resolve="exprs" />
@@ -789,9 +789,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="7FuUjk_r6Nh" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX817og" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="7FuUjk_r6Ni" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX817oh" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -1000,7 +1000,7 @@
                               <node concept="1Ls8ON" id="7EKPeISQ4_O" role="3clFbG">
                                 <node concept="2OqwBi" id="7EKPeISQ4_P" role="1Lso8e">
                                   <node concept="37vLTw" id="7EKPeISQ4_Q" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="7EKPeISQ4_W" resolve="it" />
+                                    <ref role="3cqZAo" node="4z0AnX817oi" resolve="it" />
                                   </node>
                                   <node concept="3TrEf2" id="7EKPeISQ4_R" role="2OqNvi">
                                     <ref role="3Tt5mk" to="kfo3:7FuUjk_mXBR" resolve="col" />
@@ -1009,7 +1009,7 @@
                                 <node concept="qpA2v" id="7EKPeISQ4_S" role="1Lso8e">
                                   <node concept="2OqwBi" id="7EKPeISQ4_T" role="3SLO0q">
                                     <node concept="37vLTw" id="7EKPeISQ4_U" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="7EKPeISQ4_W" resolve="it" />
+                                      <ref role="3cqZAo" node="4z0AnX817oi" resolve="it" />
                                     </node>
                                     <node concept="3TrEf2" id="7EKPeISQ4_V" role="2OqNvi">
                                       <ref role="3Tt5mk" to="kfo3:7FuUjk_mXBU" resolve="value" />
@@ -1019,9 +1019,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="7EKPeISQ4_W" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817oi" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="7EKPeISQ4_X" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817oj" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -1230,16 +1230,16 @@
                             <property role="3cmrfH" value="0" />
                           </node>
                           <node concept="37vLTw" id="7EKPeISPBEu" role="1LFl5Q">
-                            <ref role="3cqZAo" node="7EKPeISPBEw" resolve="it" />
+                            <ref role="3cqZAo" node="4z0AnX817ok" resolve="it" />
                           </node>
                         </node>
                         <node concept="2bSWHS" id="7EKPeISPBEv" role="2OqNvi" />
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="7EKPeISPBEw" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817ok" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="7EKPeISPBEx" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817ol" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="1nlBCl" id="7EKPeISPBEy" role="2S7zOq">
@@ -1932,16 +1932,16 @@
                                   <node concept="liA8E" id="AfAutuJGc1" role="2OqNvi">
                                     <ref role="37wK5l" to="2ahs:RaqQlV4lZg" resolve="coverValue" />
                                     <node concept="37vLTw" id="AfAutuJGc2" role="37wK5m">
-                                      <ref role="3cqZAo" node="AfAutuJGc4" resolve="n" />
+                                      <ref role="3cqZAo" node="4z0AnX817om" resolve="n" />
                                     </node>
                                     <node concept="10Nm6u" id="AfAutuJGc3" role="37wK5m" />
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="AfAutuJGc4" role="1bW2Oz">
+                            <node concept="gl6BB" id="4z0AnX817om" role="1bW2Oz">
                               <property role="TrG5h" value="n" />
-                              <node concept="2jxLKc" id="AfAutuJGc5" role="1tU5fm" />
+                              <node concept="2jxLKc" id="4z0AnX817on" role="1tU5fm" />
                             </node>
                           </node>
                         </node>
@@ -2278,16 +2278,16 @@
                                           <node concept="liA8E" id="AfAutuJGdD" role="2OqNvi">
                                             <ref role="37wK5l" to="2ahs:RaqQlV4lZg" resolve="coverValue" />
                                             <node concept="37vLTw" id="AfAutuJGdE" role="37wK5m">
-                                              <ref role="3cqZAo" node="AfAutuJGdG" resolve="n" />
+                                              <ref role="3cqZAo" node="4z0AnX817oo" resolve="n" />
                                             </node>
                                             <node concept="10Nm6u" id="AfAutuJGdF" role="37wK5m" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="AfAutuJGdG" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX817oo" role="1bW2Oz">
                                       <property role="TrG5h" value="n" />
-                                      <node concept="2jxLKc" id="AfAutuJGdH" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX817op" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -2516,7 +2516,7 @@
                                           </node>
                                           <node concept="2OqwBi" id="AfAutuJGeP" role="3uHU7B">
                                             <node concept="37vLTw" id="AfAutuJGeQ" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="AfAutuJGeX" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817oq" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="AfAutuJGeR" role="2OqNvi">
                                               <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cT" resolve="row" />
@@ -2526,7 +2526,7 @@
                                         <node concept="3clFbC" id="AfAutuJGeS" role="3uHU7B">
                                           <node concept="2OqwBi" id="AfAutuJGeT" role="3uHU7B">
                                             <node concept="37vLTw" id="AfAutuJGeU" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="AfAutuJGeX" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817oq" resolve="it" />
                                             </node>
                                             <node concept="3TrEf2" id="AfAutuJGeV" role="2OqNvi">
                                               <ref role="3Tt5mk" to="kfo3:3DYDRw0K4cW" resolve="col" />
@@ -2539,9 +2539,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="AfAutuJGeX" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817oq" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="AfAutuJGeY" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817or" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -3296,7 +3296,7 @@
                                   <node concept="2OqwBi" id="Om1N8TzGwU" role="3clFbG">
                                     <node concept="2OqwBi" id="Om1N8TzAyo" role="2Oq$k0">
                                       <node concept="37vLTw" id="Om1N8TzAfI" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="4LQ7f3j_ypV" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817ou" resolve="it" />
                                       </node>
                                       <node concept="2Rf3mk" id="Om1N8TzB7w" role="2OqNvi">
                                         <node concept="1xIGOp" id="Om1N8TzEKL" role="1xVPHs" />
@@ -3313,16 +3313,16 @@
                                               <node concept="liA8E" id="Om1N8V9h9v" role="2OqNvi">
                                                 <ref role="37wK5l" to="2ahs:RaqQlV4lZg" resolve="coverValue" />
                                                 <node concept="37vLTw" id="Om1N8V9h9y" role="37wK5m">
-                                                  <ref role="3cqZAo" node="Om1N8TzIZy" resolve="n" />
+                                                  <ref role="3cqZAo" node="4z0AnX817os" resolve="n" />
                                                 </node>
                                                 <node concept="10Nm6u" id="Om1N8V9hAh" role="37wK5m" />
                                               </node>
                                             </node>
                                           </node>
                                         </node>
-                                        <node concept="Rh6nW" id="Om1N8TzIZy" role="1bW2Oz">
+                                        <node concept="gl6BB" id="4z0AnX817os" role="1bW2Oz">
                                           <property role="TrG5h" value="n" />
-                                          <node concept="2jxLKc" id="Om1N8TzIZz" role="1tU5fm" />
+                                          <node concept="2jxLKc" id="4z0AnX817ot" role="1tU5fm" />
                                         </node>
                                       </node>
                                     </node>
@@ -3341,7 +3341,7 @@
                                             <ref role="cht4Q" to="kfo3:6OunYCfi$ob" resolve="RangeValueExpr" />
                                           </node>
                                           <node concept="37vLTw" id="6OunYCflTUH" role="1m5AlR">
-                                            <ref role="3cqZAo" node="4LQ7f3j_ypV" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817ou" resolve="it" />
                                           </node>
                                         </node>
                                         <node concept="3TrEf2" id="6OunYCflTUI" role="2OqNvi">
@@ -3391,7 +3391,7 @@
                               </node>
                               <node concept="2OqwBi" id="6OunYCfl5TB" role="3clFbw">
                                 <node concept="37vLTw" id="6OunYCfkUGr" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="4LQ7f3j_ypV" resolve="it" />
+                                  <ref role="3cqZAo" node="4z0AnX817ou" resolve="it" />
                                 </node>
                                 <node concept="1mIQ4w" id="6OunYCfl6iJ" role="2OqNvi">
                                   <node concept="chp4Y" id="6OunYCfl6pU" role="cj9EA">
@@ -3406,7 +3406,7 @@
                                       <node concept="1rXfSq" id="4rjLou3wq_C" role="2Oq$k0">
                                         <ref role="37wK5l" node="4rjLou3w8Cv" resolve="exec" />
                                         <node concept="37vLTw" id="4rjLou3wqVT" role="37wK5m">
-                                          <ref role="3cqZAo" node="4LQ7f3j_ypV" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817ou" resolve="it" />
                                         </node>
                                         <node concept="37vLTw" id="4rjLou3wrxP" role="37wK5m">
                                           <ref role="3cqZAo" node="5sWTAJ3pqdU" resolve="rowTrace" />
@@ -3424,9 +3424,9 @@
                               </node>
                             </node>
                           </node>
-                          <node concept="Rh6nW" id="4LQ7f3j_ypV" role="1bW2Oz">
+                          <node concept="gl6BB" id="4z0AnX817ou" role="1bW2Oz">
                             <property role="TrG5h" value="it" />
-                            <node concept="2jxLKc" id="4LQ7f3j_ypW" role="1tU5fm" />
+                            <node concept="2jxLKc" id="4z0AnX817ov" role="1tU5fm" />
                           </node>
                         </node>
                       </node>
@@ -3626,7 +3626,7 @@
                           <node concept="3clFbF" id="6OunYCf7RWR" role="3cqZAp">
                             <node concept="2OqwBi" id="6OunYCf7RWS" role="3clFbG">
                               <node concept="37vLTw" id="6OunYCf7RWT" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6OunYCf7RWW" resolve="it" />
+                                <ref role="3cqZAo" node="4z0AnX817ow" resolve="it" />
                               </node>
                               <node concept="1mIQ4w" id="6OunYCf7RWU" role="2OqNvi">
                                 <node concept="chp4Y" id="6OunYCf7RWV" role="cj9EA">
@@ -3636,9 +3636,9 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="Rh6nW" id="6OunYCf7RWW" role="1bW2Oz">
+                        <node concept="gl6BB" id="4z0AnX817ow" role="1bW2Oz">
                           <property role="TrG5h" value="it" />
-                          <node concept="2jxLKc" id="6OunYCf7RWX" role="1tU5fm" />
+                          <node concept="2jxLKc" id="4z0AnX817ox" role="1tU5fm" />
                         </node>
                       </node>
                     </node>
@@ -3744,7 +3744,7 @@
                                         <node concept="2OqwBi" id="MOCoK$zSTw" role="37wK5m">
                                           <node concept="2OqwBi" id="MOCoK$zSTx" role="2Oq$k0">
                                             <node concept="37vLTw" id="MOCoK$zSTy" role="2Oq$k0">
-                                              <ref role="3cqZAo" node="MOCoK$zSTA" resolve="it" />
+                                              <ref role="3cqZAo" node="4z0AnX817oy" resolve="it" />
                                             </node>
                                             <node concept="3Tsc0h" id="MOCoK$zSTz" role="2OqNvi">
                                               <ref role="3TtcxE" to="kfo3:8XWEtdYkjo" resolve="exprs" />
@@ -3758,9 +3758,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="MOCoK$zSTA" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817oy" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="MOCoK$zSTB" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817oz" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/org.iets3.core.expr.util.interpreter.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/org.iets3.core.expr.util.interpreter.msd
index 84675c01da..9fc7ea1f01 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/org.iets3.core.expr.util.interpreter.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.expr.util.interpreter/org.iets3.core.expr.util.interpreter.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.core.expr.util.interpreter" uuid="4289e037-cc03-4bfe-bf89-2db268aec73a" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="org.iets3.core.expr.util.interpreter" uuid="4289e037-cc03-4bfe-bf89-2db268aec73a" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">8bb1251e-eae5-47ab-9843-33adfae8edaa(org.iets3.core.expr.util)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
@@ -23,7 +22,7 @@
     <language slang="l:47f075a6-558e-4640-a606-7ce0236c8023:com.mbeddr.mpsutil.interpreter" version="1" />
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/models/org/iets3/opensource/allScripts/build/build.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/models/org/iets3/opensource/allScripts/build/build.mps
index 3246e01126..8f737ba105 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/models/org/iets3/opensource/allScripts/build/build.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/models/org/iets3/opensource/allScripts/build/build.mps
@@ -60,7 +60,7 @@
       <concept id="8654221991637384182" name="jetbrains.mps.build.structure.BuildFileIncludesSelector" flags="ng" index="3qWCbU">
         <property id="8654221991637384184" name="pattern" index="3qWCbO" />
       </concept>
-      <concept id="4701820937132344003" name="jetbrains.mps.build.structure.BuildLayout_Container" flags="ng" index="1y1bJS">
+      <concept id="4701820937132344003" name="jetbrains.mps.build.structure.BuildLayout_Container" flags="ngI" index="1y1bJS">
         <child id="7389400916848037006" name="children" index="39821P" />
       </concept>
       <concept id="841011766566059607" name="jetbrains.mps.build.structure.BuildStringNotEmpty" flags="ng" index="3_J27D" />
@@ -76,7 +76,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -276,16 +276,6 @@
               <ref role="3bR37D" to="ffeo:7pdFgzxlDoA" resolve="jetbrains.mps.build" />
             </node>
           </node>
-          <node concept="1SiIV0" id="3ZBI8Aw7aet" role="3bR37C">
-            <node concept="3bR9La" id="3ZBI8Aw7aeu" role="1SiIV1">
-              <ref role="3bR37D" to="ffeo:568PkTlOK5Q" resolve="jetbrains.mps.core.xml" />
-            </node>
-          </node>
-          <node concept="1SiIV0" id="3ZBI8Aw7aev" role="3bR37C">
-            <node concept="3bR9La" id="3ZBI8Aw7aew" role="1SiIV1">
-              <ref role="3bR37D" to="ffeo:7pdFgzxlDoI" resolve="jetbrains.mps.build.workflow" />
-            </node>
-          </node>
           <node concept="1SiIV0" id="6D$R_XpdMC3" role="3bR37C">
             <node concept="3bR9La" id="6D$R_XpdMC4" role="1SiIV1">
               <ref role="3bR37D" to="ffeo:7pdFgzxlDoP" resolve="jetbrains.mps.build.mps" />
@@ -405,25 +395,6 @@
             <ref role="3bR37D" to="ffeo:mXGwHwhVPj" resolve="JDK" />
           </node>
         </node>
-        <node concept="1SiIV0" id="6Fs_Z9Iz5RP" role="3bR37C">
-          <node concept="1BurEX" id="6Fs_Z9Iz5RQ" role="1SiIV1">
-            <node concept="398BVA" id="6Fs_Z9Iz5RC" role="1BurEY">
-              <ref role="398BVh" node="5wLtKNeTaqD" resolve="iets3.lang.opensource" />
-              <node concept="2Ry0Ak" id="6Fs_Z9Iz5RD" role="iGT6I">
-                <property role="2Ry0Am" value="solutions" />
-                <node concept="2Ry0Ak" id="6Fs_Z9Iz5RE" role="2Ry0An">
-                  <property role="2Ry0Am" value="org.iets3.opensource.build.gentests.rt" />
-                  <node concept="2Ry0Ak" id="6Fs_Z9Iz5RF" role="2Ry0An">
-                    <property role="2Ry0Am" value="lib" />
-                    <node concept="2Ry0Ak" id="6Fs_Z9Iz5RG" role="2Ry0An">
-                      <property role="2Ry0Am" value="takari-cpsuite-1.2.7.jar" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
         <node concept="1BupzO" id="1RMC8GHIDdb" role="3bR31x">
           <property role="3ZfqAx" value="models" />
           <property role="1Hdu6h" value="true" />
@@ -462,6 +433,25 @@
             </node>
           </node>
         </node>
+        <node concept="1SiIV0" id="67tIbohRuGz" role="3bR37C">
+          <node concept="1BurEX" id="67tIbohRuG$" role="1SiIV1">
+            <node concept="398BVA" id="67tIbohRuGm" role="1BurEY">
+              <ref role="398BVh" node="5wLtKNeTaqD" resolve="iets3.lang.opensource" />
+              <node concept="2Ry0Ak" id="67tIbohRuGn" role="iGT6I">
+                <property role="2Ry0Am" value="solutions" />
+                <node concept="2Ry0Ak" id="67tIbohRuGo" role="2Ry0An">
+                  <property role="2Ry0Am" value="org.iets3.opensource.build.gentests.rt" />
+                  <node concept="2Ry0Ak" id="67tIbohRuGp" role="2Ry0An">
+                    <property role="2Ry0Am" value="lib" />
+                    <node concept="2Ry0Ak" id="67tIbohRuGq" role="2Ry0An">
+                      <property role="2Ry0Am" value="takari-cpsuite-1.2.7.jar" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
       </node>
     </node>
     <node concept="10PD9b" id="5wLtKNeSRPm" role="10PD9s" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/org.iets3.opensource.allScripts.build.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/org.iets3.opensource.allScripts.build.msd
index 82bbaff461..5bedf14158 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/org.iets3.opensource.allScripts.build.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.allScripts.build/org.iets3.opensource.allScripts.build.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.opensource.allScripts.build" uuid="ed0abc8f-2bd9-460c-b01c-761f3a610483" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.opensource.allScripts.build" uuid="ed0abc8f-2bd9-460c-b01c-761f3a610483" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">422c2909-59d6-41a9-b318-40e6256b250f(jetbrains.mps.ide.build)</dependency>
     <dependency reexport="false">3ae9cfda-f938-4524-b4ca-fbcba3b0525b(com.mbeddr.platform)</dependency>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/models/org.iets3.opensource.build.gentests.rt.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/models/org.iets3.opensource.build.gentests.rt.mps
index 355d0d57bb..135318800f 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/models/org.iets3.opensource.build.gentests.rt.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/models/org.iets3.opensource.build.gentests.rt.mps
@@ -14,7 +14,7 @@
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
         <child id="1188214630783" name="value" index="2B76xF" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="1188214545140" name="jetbrains.mps.baseLanguage.structure.AnnotationInstanceValue" flags="ng" index="2B6LJw">
@@ -31,7 +31,7 @@
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="2580416627845338977" name="jetbrains.mps.baseLanguage.structure.ImplicitAnnotationInstanceValue" flags="ng" index="1SXeKx" />
@@ -41,7 +41,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/org.iets3.opensource.build.gentests.rt.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/org.iets3.opensource.build.gentests.rt.msd
index ec04ee7080..3a80c538a4 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/org.iets3.opensource.build.gentests.rt.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build.gentests.rt/org.iets3.opensource.build.gentests.rt.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.opensource.build.gentests.rt" uuid="e70ad515-8ff0-4a50-8cb4-41406f14e348" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.opensource.build.gentests.rt" uuid="e70ad515-8ff0-4a50-8cb4-41406f14e348" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,12 +11,9 @@
   <facets>
     <facet type="java" compile="mps" classes="mps" ext="no">
       <classes generated="true" path="${module}/classes_gen" />
+      <library location="${module}/lib/takari-cpsuite-1.2.7.jar" />
     </facet>
   </facets>
-  <stubModelEntries>
-    <stubModelEntry path="${module}/lib/takari-cpsuite-1.2.7.jar" />
-  </stubModelEntries>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">49808fad-9d41-4b96-83fa-9231640f6b2b(JUnit)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/models/org/iets3/opensource/build/build.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/models/org/iets3/opensource/build/build.mps
index 40a93ad4e3..57abe987a3 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/models/org/iets3/opensource/build/build.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/models/org/iets3/opensource/build/build.mps
@@ -90,7 +90,7 @@
       <concept id="8654221991637384182" name="jetbrains.mps.build.structure.BuildFileIncludesSelector" flags="ng" index="3qWCbU">
         <property id="8654221991637384184" name="pattern" index="3qWCbO" />
       </concept>
-      <concept id="4701820937132344003" name="jetbrains.mps.build.structure.BuildLayout_Container" flags="ng" index="1y1bJS">
+      <concept id="4701820937132344003" name="jetbrains.mps.build.structure.BuildLayout_Container" flags="ngI" index="1y1bJS">
         <child id="7389400916848037006" name="children" index="39821P" />
       </concept>
       <concept id="5610619299013057363" name="jetbrains.mps.build.structure.BuildLayout_ImportContent" flags="ng" index="3ygNvl">
@@ -113,7 +113,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -152,7 +152,6 @@
       </concept>
       <concept id="868032131020265945" name="jetbrains.mps.build.mps.structure.BuildMPSPlugin" flags="ng" index="3b7kt6" />
       <concept id="5253498789149381388" name="jetbrains.mps.build.mps.structure.BuildMps_Module" flags="ng" index="3bQrTs">
-        <property id="1500819558096356884" name="doNotCompile" index="2GAjPV" />
         <child id="5253498789149547825" name="sources" index="3bR31x" />
         <child id="5253498789149547704" name="dependencies" index="3bR37C" />
       </concept>
@@ -3630,7 +3629,6 @@
         <property role="BnDLt" value="true" />
         <property role="TrG5h" value="org.iets3.core.expr.base.collections.stubs" />
         <property role="3LESm3" value="b76a0f63-5959-456b-993a-c796cc0d0c13" />
-        <property role="2GAjPV" value="true" />
         <node concept="398BVA" id="5khwDRKS3BU" role="3LF7KH">
           <ref role="398BVh" node="5wLtKNeTaqD" resolve="iets3.lang.opensource" />
           <node concept="2Ry0Ak" id="5khwDRKS3GV" role="iGT6I">
@@ -4425,6 +4423,11 @@
             <ref role="3bR37D" node="7jAOwAVRc2S" resolve="org.iets3.core.expr.simpleTypes.runtime" />
           </node>
         </node>
+        <node concept="1SiIV0" id="7ohnJTZM_la" role="3bR37C">
+          <node concept="3bR9La" id="7ohnJTZM_lb" role="1SiIV1">
+            <ref role="3bR37D" to="ffeo:4X1d9kMCbcv" resolve="jetbrains.mps.ide.refactoring.platform" />
+          </node>
+        </node>
       </node>
       <node concept="1E1JtD" id="5a_u3OzLedQ" role="2G$12L">
         <property role="BnDLt" value="true" />
@@ -5326,14 +5329,9 @@
             <ref role="1Busuk" node="5wLtKNeSRPD" resolve="org.iets3.core.expr.base" />
           </node>
         </node>
-        <node concept="1SiIV0" id="Ss0aue6178" role="3bR37C">
-          <node concept="3bR9La" id="Ss0aue6179" role="1SiIV1">
-            <ref role="3bR37D" node="5wLtKNeSRPD" resolve="org.iets3.core.expr.base" />
-          </node>
-        </node>
-        <node concept="1SiIV0" id="341S5cs8Ue0" role="3bR37C">
-          <node concept="3bR9La" id="341S5cs8Ue1" role="1SiIV1">
-            <ref role="3bR37D" to="ffeo:7Kfy9QB6KYb" resolve="jetbrains.mps.baseLanguage" />
+        <node concept="1SiIV0" id="7ohnJTZM_mU" role="3bR37C">
+          <node concept="3bR9La" id="7ohnJTZM_mV" role="1SiIV1">
+            <ref role="3bR37D" to="ffeo:3qkjbZn808a" resolve="jetbrains.mps.lang.constraints.rules.runtime" />
           </node>
         </node>
       </node>
@@ -5435,6 +5433,11 @@
               </node>
             </node>
           </node>
+          <node concept="1SiIV0" id="7ohnJTZM_ni" role="3bR37C">
+            <node concept="3bR9La" id="7ohnJTZM_nj" role="1SiIV1">
+              <ref role="3bR37D" to="ffeo:1ULLXZL0gZG" resolve="org.junit.junit5" />
+            </node>
+          </node>
         </node>
         <node concept="1SiIV0" id="ub9nkyRnyt" role="3bR37C">
           <node concept="1Busua" id="ub9nkyRnyu" role="1SiIV1">
@@ -7471,6 +7474,11 @@
             <ref role="3bR37D" to="ffeo:3MI1gu0QouH" resolve="jetbrains.mps.editor.runtime" />
           </node>
         </node>
+        <node concept="1SiIV0" id="7ohnJTZM_qs" role="3bR37C">
+          <node concept="3bR9La" id="7ohnJTZM_qt" role="1SiIV1">
+            <ref role="3bR37D" to="ffeo:3qkjbZn808a" resolve="jetbrains.mps.lang.constraints.rules.runtime" />
+          </node>
+        </node>
         <node concept="1SiIV0" id="6cBhYjwIHaU" role="3bR37C">
           <node concept="3bR9La" id="6cBhYjwIHaV" role="1SiIV1">
             <ref role="3bR37D" to="ffeo:7Kfy9QB6Lg8" resolve="jetbrains.mps.runtime" />
@@ -10362,6 +10370,9 @@
             <ref role="1E1Vl2" to="ffeo:ymnOULAU0j" resolve="jetbrains.mps.baseLanguage.unitTest" />
           </node>
         </node>
+        <node concept="1E0d5M" id="7ohnJTZM_w$" role="1E1XAP">
+          <ref role="1E0d5P" node="5v$Gz_MUO6K" resolve="org.iets3.core.expr.genjava.tests.rt" />
+        </node>
       </node>
       <node concept="1E1JtD" id="26tZ$Z4qWJe" role="2G$12L">
         <property role="BnDLt" value="true" />
@@ -10534,6 +10545,9 @@
             <ref role="1E1Vl2" node="lH$Puj5DFq" resolve="org.iets3.core.expr.genjava.contracts" />
           </node>
         </node>
+        <node concept="1E0d5M" id="7ohnJTZM_wX" role="1E1XAP">
+          <ref role="1E0d5P" node="26tZ$Z4rreH" resolve="org.iets3.core.expr.genjava.toplevel.rt" />
+        </node>
       </node>
       <node concept="1E1JtD" id="5BQDrmkjrxX" role="2G$12L">
         <property role="TrG5h" value="org.iets3.core.expr.genjava.stringvalidation" />
@@ -11016,7 +11030,6 @@
         <property role="BnDLt" value="true" />
         <property role="TrG5h" value="org.iets3.core.expr.genjava.functionalJava" />
         <property role="3LESm3" value="708a03ad-8699-43c9-821a-6cd00b68e9f8" />
-        <property role="2GAjPV" value="true" />
         <node concept="398BVA" id="26tZ$Z4rvHD" role="3LF7KH">
           <ref role="398BVh" node="5wLtKNeTaqD" resolve="iets3.lang.opensource" />
           <node concept="2Ry0Ak" id="26tZ$Z4rwC$" role="iGT6I">
@@ -13274,6 +13287,9 @@
         <node concept="L2wRC" id="OJuIQp$diS" role="39821P">
           <ref role="L2wRA" node="OJuIQp$d7j" resolve="test.in.expr.os" />
         </node>
+        <node concept="L2wRC" id="7YuIrXB9EAS" role="39821P">
+          <ref role="L2wRA" node="7YuIrXB5Sn0" resolve="test.node.expr.os" />
+        </node>
         <node concept="L2wRC" id="5IOlOc8vtrg" role="39821P">
           <ref role="L2wRA" node="5IOlOc8uq2z" resolve="test.ts.expr.os" />
         </node>
@@ -13544,6 +13560,87 @@
         </node>
       </node>
     </node>
+    <node concept="1E1JtA" id="7YuIrXB5Sn0" role="3989C9">
+      <property role="BnDLt" value="true" />
+      <property role="TrG5h" value="test.node.expr.os" />
+      <property role="3LESm3" value="145c1cd8-5aba-4aa8-8911-7357b875715e" />
+      <property role="aoJFB" value="eYcmk9QOlj/sources_and_tests" />
+      <node concept="398BVA" id="7YuIrXB5Spj" role="3LF7KH">
+        <ref role="398BVh" node="OJuIQp$deE" resolve="iets3.lang.opensource" />
+        <node concept="2Ry0Ak" id="7YuIrXB5Spm" role="iGT6I">
+          <property role="2Ry0Am" value="tests" />
+          <node concept="2Ry0Ak" id="7YuIrXB5Sr6" role="2Ry0An">
+            <property role="2Ry0Am" value="test.node.expr.os" />
+            <node concept="2Ry0Ak" id="7YuIrXB5Ssh" role="2Ry0An">
+              <property role="2Ry0Am" value="test.node.expr.os.msd" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="1SiIV0" id="7YuIrXB5Stq" role="3bR37C">
+        <node concept="3bR9La" id="7YuIrXB5Str" role="1SiIV1">
+          <ref role="3bR37D" to="ffeo:1H905DlDUSw" resolve="MPS.OpenAPI" />
+        </node>
+      </node>
+      <node concept="1SiIV0" id="7YuIrXB5Sts" role="3bR37C">
+        <node concept="3bR9La" id="7YuIrXB5Stt" role="1SiIV1">
+          <ref role="3bR37D" node="5wLtKNeSRPD" resolve="org.iets3.core.expr.base" />
+        </node>
+      </node>
+      <node concept="1SiIV0" id="7YuIrXB5Stu" role="3bR37C">
+        <node concept="3bR9La" id="7YuIrXB5Stv" role="1SiIV1">
+          <ref role="3bR37D" to="ffeo:mXGwHwhVPj" resolve="JDK" />
+        </node>
+      </node>
+      <node concept="1SiIV0" id="7YuIrXB5Stw" role="3bR37C">
+        <node concept="3bR9La" id="7YuIrXB5Stx" role="1SiIV1">
+          <ref role="3bR37D" node="5wLtKNeSRQd" resolve="org.iets3.core.expr.simpleTypes" />
+        </node>
+      </node>
+      <node concept="1SiIV0" id="7YuIrXB5Sty" role="3bR37C">
+        <node concept="3bR9La" id="7YuIrXB5Stz" role="1SiIV1">
+          <ref role="3bR37D" to="al5i:2bBLuwR9$cn" resolve="com.mbeddr.mpsutil.interpreter.rt" />
+        </node>
+      </node>
+      <node concept="1BupzO" id="7YuIrXB5StQ" role="3bR31x">
+        <property role="3ZfqAx" value="models" />
+        <property role="1Hdu6h" value="true" />
+        <property role="1HemKv" value="true" />
+        <node concept="3LXTmp" id="7YuIrXB5StR" role="1HemKq">
+          <node concept="398BVA" id="7YuIrXB5St$" role="3LXTmr">
+            <ref role="398BVh" node="OJuIQp$deE" resolve="iets3.lang.opensource" />
+            <node concept="2Ry0Ak" id="7YuIrXB5St_" role="iGT6I">
+              <property role="2Ry0Am" value="tests" />
+              <node concept="2Ry0Ak" id="7YuIrXB5StA" role="2Ry0An">
+                <property role="2Ry0Am" value="test.node.expr.os" />
+                <node concept="2Ry0Ak" id="7YuIrXB5StB" role="2Ry0An">
+                  <property role="2Ry0Am" value="models" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3qWCbU" id="7YuIrXB5StS" role="3LXTna">
+            <property role="3qWCbO" value="**/*.mps, **/*.mpsr, **/.model" />
+          </node>
+        </node>
+      </node>
+      <node concept="3rtmxn" id="7YuIrXB5Sxz" role="3bR31x">
+        <node concept="3LXTmp" id="7YuIrXB5Sx$" role="3rtmxm">
+          <node concept="398BVA" id="7YuIrXB5Sx_" role="3LXTmr">
+            <ref role="398BVh" node="OJuIQp$deE" resolve="iets3.lang.opensource" />
+            <node concept="2Ry0Ak" id="7YuIrXB5SxA" role="iGT6I">
+              <property role="2Ry0Am" value="tests" />
+              <node concept="2Ry0Ak" id="7YuIrXB5SxB" role="2Ry0An">
+                <property role="2Ry0Am" value="test.node.expr.os" />
+              </node>
+            </node>
+          </node>
+          <node concept="3qWCbU" id="7YuIrXB5SxD" role="3LXTna">
+            <property role="3qWCbO" value="icons/**" />
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="1E1JtA" id="OJuIQp$d7j" role="3989C9">
       <property role="BnDLt" value="true" />
       <property role="3LESm3" value="2614fab6-e994-4127-9a5d-8c8cd7ba2833" />
@@ -13681,8 +13778,8 @@
           <ref role="3bR37D" node="6n8rWbyXz_9" resolve="org.iets3.core.expr.typetags.units.si" />
         </node>
       </node>
-      <node concept="1SiIV0" id="5QvrxSgv0wC" role="3bR37C">
-        <node concept="3bR9La" id="5QvrxSgv0wD" role="1SiIV1">
+      <node concept="1SiIV0" id="7ohnJTZM_Co" role="3bR37C">
+        <node concept="3bR9La" id="7ohnJTZM_Cp" role="1SiIV1">
           <ref role="3bR37D" node="4C_RnzfEE1P" resolve="org.iets3.core.expr.base.runtime" />
         </node>
       </node>
@@ -13972,6 +14069,9 @@
       <node concept="22LTRM" id="OJuIQp_hdf" role="22LTRK">
         <ref role="22LTRN" node="OJuIQp$d7j" resolve="test.in.expr.os" />
       </node>
+      <node concept="22LTRM" id="7YuIrXB9EAV" role="22LTRK">
+        <ref role="22LTRN" node="7YuIrXB5Sn0" resolve="test.node.expr.os" />
+      </node>
       <node concept="22LTRM" id="5IOlOc8vuMy" role="22LTRK">
         <ref role="22LTRN" node="5IOlOc8uq2z" resolve="test.ts.expr.os" />
       </node>
@@ -14690,6 +14790,11 @@
           <ref role="3bR37D" to="ffeo:3MI1gu0QouH" resolve="jetbrains.mps.editor.runtime" />
         </node>
       </node>
+      <node concept="1SiIV0" id="7ohnJTZM_BB" role="3bR37C">
+        <node concept="3bR9La" id="7ohnJTZM_BC" role="1SiIV1">
+          <ref role="3bR37D" to="ffeo:3qkjbZn808a" resolve="jetbrains.mps.lang.constraints.rules.runtime" />
+        </node>
+      </node>
       <node concept="1SiIV0" id="6cBhYjwIGXF" role="3bR37C">
         <node concept="3bR9La" id="6cBhYjwIGXG" role="1SiIV1">
           <ref role="3bR37D" to="ffeo:7Kfy9QB6Lg8" resolve="jetbrains.mps.runtime" />
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/org.iets3.opensource.build.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/org.iets3.opensource.build.msd
index 041c58b07e..8b321a5a9f 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/org.iets3.opensource.build.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/org.iets3.opensource.build.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.opensource.build" uuid="31dfb853-8304-435d-b27c-e29ef9a627cf" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.opensource.build" uuid="31dfb853-8304-435d-b27c-e29ef9a627cf" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">422c2909-59d6-41a9-b318-40e6256b250f(jetbrains.mps.ide.build)</dependency>
     <dependency reexport="false">3ae9cfda-f938-4524-b4ca-fbcba3b0525b(com.mbeddr.platform)</dependency>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/models/org.iets3.opensource.linters.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/models/org.iets3.opensource.linters.mps
index 949d8234c5..f1a627553d 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/models/org.iets3.opensource.linters.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/models/org.iets3.opensource.linters.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="0cf935df-4699-4e9c-a132-fa109541cba3" name="jetbrains.mps.build.mps" version="7" />
     <use id="40ab19e9-751a-4433-b645-0e65160e58a0" name="org.mpsqa.lint.generic" version="1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
     <use id="1a8554c4-eb84-43ba-8c34-6f0d90c6e75a" name="jetbrains.mps.lang.smodel.query" version="3" />
     <use id="760a0a8c-eabb-4521-8bfd-65db761a9ba3" name="jetbrains.mps.baseLanguage.logging" version="0" />
   </languages>
@@ -61,7 +61,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -100,7 +100,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -145,6 +145,7 @@
       <concept id="2555875871751904530" name="org.mpsqa.lint.generic.structure.GenericCheckingFunction" flags="ig" index="1MIXq2" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -157,7 +158,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -215,7 +216,6 @@
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
@@ -635,7 +635,7 @@
                                       <node concept="3clFbF" id="6wumyRU9QhV" role="3cqZAp">
                                         <node concept="2OqwBi" id="6wumyRU9Qq_" role="3clFbG">
                                           <node concept="37vLTw" id="6wumyRU9QhU" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="6wumyRU9QhG" resolve="it" />
+                                            <ref role="3cqZAo" node="4z0AnX817o$" resolve="it" />
                                           </node>
                                           <node concept="liA8E" id="6wumyRU9QDF" role="2OqNvi">
                                             <ref role="37wK5l" to="mhbf:~SModelReference.resolve(org.jetbrains.mps.openapi.module.SRepository)" resolve="resolve" />
@@ -646,9 +646,9 @@
                                         </node>
                                       </node>
                                     </node>
-                                    <node concept="Rh6nW" id="6wumyRU9QhG" role="1bW2Oz">
+                                    <node concept="gl6BB" id="4z0AnX817o$" role="1bW2Oz">
                                       <property role="TrG5h" value="it" />
-                                      <node concept="2jxLKc" id="6wumyRU9QhH" role="1tU5fm" />
+                                      <node concept="2jxLKc" id="4z0AnX817o_" role="1tU5fm" />
                                     </node>
                                   </node>
                                 </node>
@@ -660,14 +660,14 @@
                                       <node concept="3y3z36" id="6wumyRU9Sfd" role="3clFbG">
                                         <node concept="10Nm6u" id="6wumyRU9SsW" role="3uHU7w" />
                                         <node concept="37vLTw" id="6wumyRU9S78" role="3uHU7B">
-                                          <ref role="3cqZAo" node="6wumyRU9RY8" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817oA" resolve="it" />
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="6wumyRU9RY8" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817oA" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="6wumyRU9RY9" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817oB" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -678,7 +678,7 @@
                                   <node concept="3clFbF" id="6lwqIIdXhJ7" role="3cqZAp">
                                     <node concept="2OqwBi" id="6lwqIIdXhVl" role="3clFbG">
                                       <node concept="37vLTw" id="6lwqIIdXhJ6" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="6lwqIIdXhDQ" resolve="it" />
+                                        <ref role="3cqZAo" node="4z0AnX817oC" resolve="it" />
                                       </node>
                                       <node concept="liA8E" id="6lwqIIdXobt" role="2OqNvi">
                                         <ref role="37wK5l" to="mhbf:~SModel.getModule()" resolve="getModule" />
@@ -686,9 +686,9 @@
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="Rh6nW" id="6lwqIIdXhDQ" role="1bW2Oz">
+                                <node concept="gl6BB" id="4z0AnX817oC" role="1bW2Oz">
                                   <property role="TrG5h" value="it" />
-                                  <node concept="2jxLKc" id="6lwqIIdXhDR" role="1tU5fm" />
+                                  <node concept="2jxLKc" id="4z0AnX817oD" role="1tU5fm" />
                                 </node>
                               </node>
                             </node>
@@ -945,7 +945,7 @@
                                     <node concept="3clFbF" id="6lwqIIdYoD0" role="3cqZAp">
                                       <node concept="2OqwBi" id="6lwqIIdYoIj" role="3clFbG">
                                         <node concept="37vLTw" id="6lwqIIdYoCZ" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6lwqIIdYo_i" resolve="it" />
+                                          <ref role="3cqZAo" node="4z0AnX817oE" resolve="it" />
                                         </node>
                                         <node concept="liA8E" id="6lwqIIdYpkX" role="2OqNvi">
                                           <ref role="37wK5l" to="lui2:~SModule.getModuleName()" resolve="getModuleName" />
@@ -953,9 +953,9 @@
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="6lwqIIdYo_i" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817oE" role="1bW2Oz">
                                     <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="6lwqIIdYo_j" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817oF" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
@@ -978,24 +978,24 @@
                                     <node concept="3clFbF" id="6lwqIIdYqmp" role="3cqZAp">
                                       <node concept="2OqwBi" id="6lwqIIdYqLn" role="3clFbG">
                                         <node concept="37vLTw" id="6lwqIIdYqmo" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6lwqIIdYqi6" resolve="a" />
+                                          <ref role="3cqZAo" node="4z0AnX817oG" resolve="a" />
                                         </node>
                                         <node concept="liA8E" id="6lwqIIdYrF6" role="2OqNvi">
                                           <ref role="37wK5l" to="wyt6:~String.compareTo(java.lang.String)" resolve="compareTo" />
                                           <node concept="37vLTw" id="6lwqIIdYrR0" role="37wK5m">
-                                            <ref role="3cqZAo" node="6lwqIIdYqi6" resolve="a" />
+                                            <ref role="3cqZAo" node="4z0AnX817oG" resolve="a" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="6lwqIIdYqi6" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817oG" role="1bW2Oz">
                                     <property role="TrG5h" value="a" />
-                                    <node concept="2jxLKc" id="6lwqIIdYqi7" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817oH" role="1tU5fm" />
                                   </node>
-                                  <node concept="Rh6nW" id="6lwqIIdYqi8" role="1bW2Oz">
+                                  <node concept="gl6BB" id="4z0AnX817oI" role="1bW2Oz">
                                     <property role="TrG5h" value="b" />
-                                    <node concept="2jxLKc" id="6lwqIIdYqi9" role="1tU5fm" />
+                                    <node concept="2jxLKc" id="4z0AnX817oJ" role="1tU5fm" />
                                   </node>
                                 </node>
                                 <node concept="1nlBCl" id="6lwqIIdYqia" role="2Dq5b$">
@@ -1127,7 +1127,7 @@
                     <node concept="3clFbF" id="6lwqIIdZ5Bo" role="3cqZAp">
                       <node concept="2OqwBi" id="6lwqIIdZ6XX" role="3clFbG">
                         <node concept="37vLTw" id="6lwqIIdZ5Bn" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6lwqIIdZ3Nj" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817oK" resolve="it" />
                         </node>
                         <node concept="2OwXpG" id="6lwqIIdZ9mB" role="2OqNvi">
                           <ref role="2Oxat5" to="zn9m:~Pair.first" resolve="first" />
@@ -1135,9 +1135,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="6lwqIIdZ3Nj" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817oK" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="6lwqIIdZ3Nk" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817oL" role="1tU5fm" />
                   </node>
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/org.iets3.opensource.linters.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/org.iets3.opensource.linters.msd
index d957276ad1..f297056c34 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/org.iets3.opensource.linters.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.opensource.linters/org.iets3.opensource.linters.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="org.iets3.opensource.linters" uuid="d513acb5-1eac-4906-826c-9fbe0a028e42" moduleVersion="0" compileInMPS="true">
+<solution name="org.iets3.opensource.linters" uuid="d513acb5-1eac-4906-826c-9fbe0a028e42" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">12a40499-ed72-4b23-9437-358c4217c97b(org.mpsqa.lint.mps_lang.linters_library)</dependency>
     <dependency reexport="false">a86f8e91-0c59-4691-a7ce-49b7e2c7c3a9(org.mpsqa.lint.generic.linters_library)</dependency>
@@ -21,7 +20,7 @@
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
     <language slang="l:798100da-4f0a-421a-b991-71f8c50ce5d2:jetbrains.mps.build" version="0" />
     <language slang="l:0cf935df-4699-4e9c-a132-fa109541cba3:jetbrains.mps.build.mps" version="7" />
diff --git a/code/languages/org.iets3.opensource/solutions/playground/models/m1.mps b/code/languages/org.iets3.opensource/solutions/playground/models/m1.mps
index c7fc989cac..2fdbcb612a 100644
--- a/code/languages/org.iets3.opensource/solutions/playground/models/m1.mps
+++ b/code/languages/org.iets3.opensource/solutions/playground/models/m1.mps
@@ -36,10 +36,10 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837157187871" name="org.iets3.core.expr.base.structure.ParensExpression" flags="ng" index="30bsCy">
@@ -168,7 +168,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -189,7 +189,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -211,11 +211,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -231,7 +231,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/solutions/playground/models/playground.bindingtimes.mps b/code/languages/org.iets3.opensource/solutions/playground/models/playground.bindingtimes.mps
index e783e6e645..9dc0e169ca 100644
--- a/code/languages/org.iets3.opensource/solutions/playground/models/playground.bindingtimes.mps
+++ b/code/languages/org.iets3.opensource/solutions/playground/models/playground.bindingtimes.mps
@@ -9,7 +9,7 @@
   <imports />
   <registry>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="5115872837156578546" name="org.iets3.core.expr.base.structure.PlusExpression" flags="ng" index="30dDZf" />
@@ -76,7 +76,7 @@
       <concept id="1759375669591494838" name="org.iets3.core.expr.typetags.structure.TaggedType" flags="ng" index="2c7tTJ">
         <child id="1759375669591494841" name="baseType" index="2c7tTw" />
       </concept>
-      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ng" index="3ciMKZ">
+      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ngI" index="3ciMKZ">
         <child id="1759375669591494839" name="tags" index="2c7tTI" />
       </concept>
     </language>
@@ -84,7 +84,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/playground/models/playground.priorisationInCC.mps b/code/languages/org.iets3.opensource/solutions/playground/models/playground.priorisationInCC.mps
index 29f017c3e4..511dd86af1 100644
--- a/code/languages/org.iets3.opensource/solutions/playground/models/playground.priorisationInCC.mps
+++ b/code/languages/org.iets3.opensource/solutions/playground/models/playground.priorisationInCC.mps
@@ -12,7 +12,7 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
     </language>
@@ -42,7 +42,7 @@
       <concept id="4790956042240148643" name="org.iets3.core.expr.toplevel.structure.Function" flags="ng" index="1aga60" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -50,16 +50,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/playground/models/sheets.mps b/code/languages/org.iets3.opensource/solutions/playground/models/sheets.mps
index fc634b80b1..3459b188be 100644
--- a/code/languages/org.iets3.opensource/solutions/playground/models/sheets.mps
+++ b/code/languages/org.iets3.opensource/solutions/playground/models/sheets.mps
@@ -32,7 +32,7 @@
       <concept id="7782108600708168956" name="org.iets3.core.expr.base.structure.ReferenceType" flags="ng" index="nhQpQ">
         <child id="7782108600708168957" name="baseType" index="nhQpR" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -106,7 +106,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -220,7 +220,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -242,11 +242,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -259,7 +259,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/solutions/playground/models/wgld.mps b/code/languages/org.iets3.opensource/solutions/playground/models/wgld.mps
index 8b32c278d1..b8cc454c4e 100644
--- a/code/languages/org.iets3.opensource/solutions/playground/models/wgld.mps
+++ b/code/languages/org.iets3.opensource/solutions/playground/models/wgld.mps
@@ -19,7 +19,7 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -148,7 +148,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -156,16 +156,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/playground/playground.msd b/code/languages/org.iets3.opensource/solutions/playground/playground.msd
index 90dd446aa3..c89f4208d4 100644
--- a/code/languages/org.iets3.opensource/solutions/playground/playground.msd
+++ b/code/languages/org.iets3.opensource/solutions/playground/playground.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="playground" uuid="8f993025-dae8-4316-bd1e-c16bb4dc37fc" moduleVersion="0" compileInMPS="true">
+<solution name="playground" uuid="8f993025-dae8-4316-bd1e-c16bb4dc37fc" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -10,7 +10,6 @@
       <classes generated="true" path="${module}/classes_gen" />
     </facet>
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -23,7 +22,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/models/messages@tests.mps b/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/models/messages@tests.mps
index 8eddee6b26..264fc69148 100644
--- a/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/models/messages@tests.mps
+++ b/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/models/messages@tests.mps
@@ -18,7 +18,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -33,7 +33,7 @@
       <concept id="411710798114972602" name="org.iets3.core.expr.base.structure.FailExpr" flags="ng" index="qoPdK">
         <child id="411710798114972606" name="message" index="qoPdO" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -43,7 +43,7 @@
         <child id="6541611649051509994" name="err" index="2izrR8" />
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -128,7 +128,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -162,7 +162,7 @@
       </concept>
       <concept id="4026566441521058530" name="org.iets3.core.expr.messages.structure.CoercionIt" flags="ng" index="1WJySU" />
       <concept id="4026566441518088795" name="org.iets3.core.expr.messages.structure.Group" flags="ng" index="1WOfU3" />
-      <concept id="4026566441518088787" name="org.iets3.core.expr.messages.structure.IMessageNamespace" flags="ng" index="1WOfUb">
+      <concept id="4026566441518088787" name="org.iets3.core.expr.messages.structure.IMessageNamespace" flags="ngI" index="1WOfUb">
         <child id="4026566441518088822" name="contents" index="1WOfUI" />
       </concept>
       <concept id="4026566441518088783" name="org.iets3.core.expr.messages.structure.MessageContainer" flags="ng" index="1WOfUn">
@@ -192,7 +192,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -212,10 +212,10 @@
       <concept id="4790956042240983401" name="org.iets3.core.expr.lambda.structure.BlockExpression" flags="ng" index="1aduha">
         <child id="4790956042240983402" name="expressions" index="1aduh9" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/test.ex.core.expr.genjava.msd b/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/test.ex.core.expr.genjava.msd
index 8683e4e7d6..7bb62507ea 100644
--- a/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/test.ex.core.expr.genjava.msd
+++ b/code/languages/org.iets3.opensource/solutions/test.ex.core.expr.genjava/test.ex.core.expr.genjava.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="test.ex.core.expr.genjava" uuid="0a68022c-4e89-4403-a717-1caf19c68980" moduleVersion="0" compileInMPS="true">
+<solution name="test.ex.core.expr.genjava" uuid="0a68022c-4e89-4403-a717-1caf19c68980" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -24,7 +23,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input1.mps b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input1.mps
index 0d653a59b0..3fe5ede5c5 100644
--- a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input1.mps
+++ b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input1.mps
@@ -16,11 +16,11 @@
   </imports>
   <registry>
     <language id="7d21cc4b-4c24-41db-9868-8af4a7f3eba9" name="org.iets3.core.trace">
-      <concept id="2117670517801950028" name="org.iets3.core.trace.structure.ITraceTargetProvider" flags="ng" index="2Dx65h">
+      <concept id="2117670517801950028" name="org.iets3.core.trace.structure.ITraceTargetProvider" flags="ngI" index="2Dx65h">
         <reference id="2117670517801950029" name="traceTarget" index="2Dx65g" />
       </concept>
       <concept id="2117670517801951066" name="org.iets3.core.trace.structure.NamedTargetProvider" flags="ng" index="2Dx6l7" />
-      <concept id="2117670517801898047" name="org.iets3.core.trace.structure.ITrace" flags="ng" index="2DxiCy">
+      <concept id="2117670517801898047" name="org.iets3.core.trace.structure.ITrace" flags="ngI" index="2DxiCy">
         <child id="2117670517801898058" name="traceTarget" index="2DxiDn" />
         <child id="2117670517801898048" name="traceKind" index="2DxiDt" />
       </concept>
@@ -34,10 +34,10 @@
       <concept id="2557074442922438156" name="de.slisson.mps.richtext.structure.Word" flags="ng" index="19SUe$" />
     </language>
     <language id="583939be-ded0-4735-a055-a74f8477fc34" name="org.iets3.core.attributes">
-      <concept id="4388710048722005709" name="org.iets3.core.attributes.structure.IAttributed" flags="ng" index="18DfD4">
+      <concept id="4388710048722005709" name="org.iets3.core.attributes.structure.IAttributed" flags="ngI" index="18DfD4">
         <child id="4388710048722005710" name="attributes" index="18DfD7" />
       </concept>
-      <concept id="1970998948978453245" name="org.iets3.core.attributes.structure.IValueAttribute" flags="ng" index="3PRgZ$">
+      <concept id="1970998948978453245" name="org.iets3.core.attributes.structure.IValueAttribute" flags="ngI" index="3PRgZ$">
         <child id="1970998948979996854" name="value" index="3PL9QJ" />
       </concept>
     </language>
@@ -77,7 +77,7 @@
       </concept>
       <concept id="596856272727148586" name="org.iets3.components.core.structure.EmptyComponentInterfaceContent" flags="ng" index="H_vQO" />
       <concept id="7804632404593342574" name="org.iets3.components.core.structure.EmptyComponentsChunkContent" flags="ng" index="1i1AuW" />
-      <concept id="7804632404593342035" name="org.iets3.components.core.structure.IComponentsChunkContent" flags="ng" index="1i1AA1">
+      <concept id="7804632404593342035" name="org.iets3.components.core.structure.IComponentsChunkContent" flags="ngI" index="1i1AA1">
         <property id="6142232665969969516" name="public" index="13Nl5X" />
       </concept>
       <concept id="7804632404593341326" name="org.iets3.components.core.structure.ComponentsChunk" flags="ng" index="1i1ALs">
@@ -104,7 +104,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input2.mps b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input2.mps
index 91369f749a..22c6a68a93 100644
--- a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input2.mps
+++ b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/input2.mps
@@ -13,11 +13,11 @@
   </imports>
   <registry>
     <language id="7d21cc4b-4c24-41db-9868-8af4a7f3eba9" name="org.iets3.core.trace">
-      <concept id="2117670517801950028" name="org.iets3.core.trace.structure.ITraceTargetProvider" flags="ng" index="2Dx65h">
+      <concept id="2117670517801950028" name="org.iets3.core.trace.structure.ITraceTargetProvider" flags="ngI" index="2Dx65h">
         <reference id="2117670517801950029" name="traceTarget" index="2Dx65g" />
       </concept>
       <concept id="2117670517801951066" name="org.iets3.core.trace.structure.NamedTargetProvider" flags="ng" index="2Dx6l7" />
-      <concept id="2117670517801898047" name="org.iets3.core.trace.structure.ITrace" flags="ng" index="2DxiCy">
+      <concept id="2117670517801898047" name="org.iets3.core.trace.structure.ITrace" flags="ngI" index="2DxiCy">
         <child id="2117670517801898058" name="traceTarget" index="2DxiDn" />
         <child id="2117670517801898048" name="traceKind" index="2DxiDt" />
       </concept>
@@ -25,10 +25,10 @@
       <concept id="2117670517802470200" name="org.iets3.core.trace.structure.TraceAttribute" flags="ng" index="2Dz74_" />
     </language>
     <language id="583939be-ded0-4735-a055-a74f8477fc34" name="org.iets3.core.attributes">
-      <concept id="4388710048722005709" name="org.iets3.core.attributes.structure.IAttributed" flags="ng" index="18DfD4">
+      <concept id="4388710048722005709" name="org.iets3.core.attributes.structure.IAttributed" flags="ngI" index="18DfD4">
         <child id="4388710048722005710" name="attributes" index="18DfD7" />
       </concept>
-      <concept id="1970998948978453245" name="org.iets3.core.attributes.structure.IValueAttribute" flags="ng" index="3PRgZ$">
+      <concept id="1970998948978453245" name="org.iets3.core.attributes.structure.IValueAttribute" flags="ngI" index="3PRgZ$">
         <child id="1970998948979996854" name="value" index="3PL9QJ" />
       </concept>
     </language>
@@ -54,7 +54,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/tracequery@tests.mps b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/tracequery@tests.mps
index 9e4ea554fe..ed2b92709e 100644
--- a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/tracequery@tests.mps
+++ b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/models/test/iets3/core/tracequery/tracequery@tests.mps
@@ -107,7 +107,7 @@
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -134,6 +134,7 @@
       <concept id="2557074442922438156" name="de.slisson.mps.richtext.structure.Word" flags="ng" index="19SUe$" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -166,7 +167,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -220,7 +221,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -240,7 +241,6 @@
         <child id="1204796294226" name="closure" index="23t8la" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -273,7 +273,7 @@
                     <node concept="3clFbF" id="mhbzaHpB8$" role="3cqZAp">
                       <node concept="2OqwBi" id="mhbzaHpBkD" role="3clFbG">
                         <node concept="37vLTw" id="mhbzaHpB8z" role="2Oq$k0">
-                          <ref role="3cqZAo" node="mhbzaHpB2Q" resolve="it" />
+                          <ref role="3cqZAo" node="4z0AnX817oM" resolve="it" />
                         </node>
                         <node concept="2qgKlT" id="mhbzaHpBEa" role="2OqNvi">
                           <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -281,9 +281,9 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="Rh6nW" id="mhbzaHpB2Q" role="1bW2Oz">
+                  <node concept="gl6BB" id="4z0AnX817oM" role="1bW2Oz">
                     <property role="TrG5h" value="it" />
-                    <node concept="2jxLKc" id="mhbzaHpB2R" role="1tU5fm" />
+                    <node concept="2jxLKc" id="4z0AnX817oN" role="1tU5fm" />
                   </node>
                 </node>
                 <node concept="1nlBCl" id="mhbzaHpB2S" role="2S7zOq">
diff --git a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/test.iets3.core.tracequery.msd b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/test.iets3.core.tracequery.msd
index 71ebeebed2..0ca2e38e13 100644
--- a/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/test.iets3.core.tracequery.msd
+++ b/code/languages/org.iets3.opensource/solutions/test.iets3.core.assessment/test.iets3.core.tracequery.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="test.iets3.core.tracequery" uuid="785e2843-aa64-4743-afec-47634f9d78a4" moduleVersion="0" compileInMPS="true">
+<solution name="test.iets3.core.tracequery" uuid="785e2843-aa64-4743-afec-47634f9d78a4" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">be5191a9-3476-47ca-b2a7-a426623add55(org.iets3.core.assessment)</dependency>
     <dependency reexport="false">d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)</dependency>
@@ -32,7 +31,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/test.nixHandlers.expr.os/models/test.nixHandler.expr.os.shortcircuit.mps b/code/languages/org.iets3.opensource/solutions/test.nixHandlers.expr.os/models/test.nixHandler.expr.os.shortcircuit.mps
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/code/languages/org.iets3.opensource/solutions/test.nixHandlers.expr.os/models/test.nixHandler.expr.os.shortcircuit@tests.mps b/code/languages/org.iets3.opensource/solutions/test.nixHandlers.expr.os/models/test.nixHandler.expr.os.shortcircuit@tests.mps
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/models/tests@tests.mps b/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/models/tests@tests.mps
index 7c17408270..d23881209f 100644
--- a/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/models/tests@tests.mps
+++ b/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/models/tests@tests.mps
@@ -84,7 +84,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/test.org.iets3.core.comments.msd b/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/test.org.iets3.core.comments.msd
index a4a8b33f91..0f6b226920 100644
--- a/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/test.org.iets3.core.comments.msd
+++ b/code/languages/org.iets3.opensource/solutions/test.org.iets3.core.comments/test.org.iets3.core.comments.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="test.org.iets3.core.comments" uuid="5b2a22be-3ce2-4929-be5b-e39b8b142a74" moduleVersion="0" compileInMPS="true">
+<solution name="test.org.iets3.core.comments" uuid="5b2a22be-3ce2-4929-be5b-e39b8b142a74" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <languageVersions>
     <language slang="l:d4280a54-f6df-4383-aa41-d1b2bffa7eb1:com.mbeddr.core.base" version="6" />
     <language slang="l:63e0e566-5131-447e-90e3-12ea330e1a00:com.mbeddr.mpsutil.blutil" version="3" />
@@ -24,7 +23,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/solutions/test.ts.components.core/models/tests@tests.mps b/code/languages/org.iets3.opensource/solutions/test.ts.components.core/models/tests@tests.mps
index 0a0e121c6d..92dfb1ef41 100644
--- a/code/languages/org.iets3.opensource/solutions/test.ts.components.core/models/tests@tests.mps
+++ b/code/languages/org.iets3.opensource/solutions/test.ts.components.core/models/tests@tests.mps
@@ -28,7 +28,7 @@
         <reference id="5449224527592117654" name="checkingReference" index="1BTHP0" />
         <child id="3655334166513314307" name="nodes" index="3KTr4d" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="4531408400484511853" name="jetbrains.mps.lang.test.structure.ReportErrorStatementReference" flags="ng" index="2PYRI3" />
@@ -47,7 +47,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -55,7 +55,7 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt" />
@@ -91,10 +91,10 @@
       <concept id="806329106163335739" name="org.iets3.core.attributes.structure.AttributeContainer" flags="ng" index="33R2CR">
         <child id="806329106163335756" name="nestedAttributes" index="33R2D0" />
       </concept>
-      <concept id="4388710048722005709" name="org.iets3.core.attributes.structure.IAttributed" flags="ng" index="18DfD4">
+      <concept id="4388710048722005709" name="org.iets3.core.attributes.structure.IAttributed" flags="ngI" index="18DfD4">
         <child id="4388710048722005710" name="attributes" index="18DfD7" />
       </concept>
-      <concept id="4886573260946228671" name="org.iets3.core.attributes.structure.IAttributeWithContext" flags="ng" index="3ojXR2">
+      <concept id="4886573260946228671" name="org.iets3.core.attributes.structure.IAttributeWithContext" flags="ngI" index="3ojXR2">
         <child id="4886573260946228672" name="ctx" index="3ojXQX" />
       </concept>
       <concept id="4886573260947348600" name="org.iets3.core.attributes.structure.EmptyAttribute" flags="ng" index="3oocg5" />
@@ -166,7 +166,7 @@
         <reference id="7804632404593436655" name="ref" index="1i1fwX" />
       </concept>
       <concept id="7804632404593342574" name="org.iets3.components.core.structure.EmptyComponentsChunkContent" flags="ng" index="1i1AuW" />
-      <concept id="7804632404593342035" name="org.iets3.components.core.structure.IComponentsChunkContent" flags="ng" index="1i1AA1">
+      <concept id="7804632404593342035" name="org.iets3.components.core.structure.IComponentsChunkContent" flags="ngI" index="1i1AA1">
         <property id="6142232665969969516" name="public" index="13Nl5X" />
       </concept>
       <concept id="7804632404593341326" name="org.iets3.components.core.structure.ComponentsChunk" flags="ng" index="1i1ALs">
@@ -199,7 +199,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -235,7 +235,7 @@
       <concept id="4773799153887154601" name="test.iest3.component.attribute.structure.TestConnectorType" flags="ng" index="3IJI2w" />
     </language>
     <language id="9464fa06-5ab9-409b-9274-64ab29588457" name="org.iets3.core.expr.lambda">
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/solutions/test.ts.components.core/test.ts.components.core.msd b/code/languages/org.iets3.opensource/solutions/test.ts.components.core/test.ts.components.core.msd
index c224ec2aca..eb23009906 100644
--- a/code/languages/org.iets3.opensource/solutions/test.ts.components.core/test.ts.components.core.msd
+++ b/code/languages/org.iets3.opensource/solutions/test.ts.components.core/test.ts.components.core.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="test.ts.components.core" uuid="8239233b-13cc-4bd1-842b-cf2561ff9a12" moduleVersion="0" compileInMPS="true">
+<solution name="test.ts.components.core" uuid="8239233b-13cc-4bd1-842b-cf2561ff9a12" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">f0fd486f-8577-43e9-b671-3d118449c6e7(org.iets3.components.core)</dependency>
   </dependencies>
@@ -28,7 +27,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/algebraic@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/algebraic@tests.mps
index f5a208a250..45901419b2 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/algebraic@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/algebraic@tests.mps
@@ -24,7 +24,7 @@
         <child id="8694548031077039770" name="typeConstraint" index="ygwf4" />
       </concept>
       <concept id="8872269265511400449" name="org.iets3.core.expr.collections.structure.DistinctOp" flags="ng" index="2Tjeny" />
-      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ng" index="1bLd8V">
+      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ngI" index="1bLd8V">
         <child id="527291771311128762" name="arg" index="26Ft6C" />
       </concept>
       <concept id="7554398283340640412" name="org.iets3.core.expr.collections.structure.MapOp" flags="ng" index="3iw6QE" />
@@ -43,10 +43,10 @@
       <concept id="4618483580248255217" name="org.iets3.core.expr.collections.structure.UnpackOptionsOp" flags="ng" index="3LGWMD" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -71,10 +71,10 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608145920" name="org.iets3.core.expr.base.structure.IsSomeExpression" flags="ng" index="UmaEC">
@@ -184,7 +184,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -302,7 +302,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -320,17 +320,17 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="3880322347437217307" name="effect" index="28QfE6" />
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/dataflow@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/dataflow@tests.mps
index 722e551a90..34d11766b9 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/dataflow@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/dataflow@tests.mps
@@ -32,7 +32,7 @@
       <concept id="1019070541450015930" name="org.iets3.core.expr.base.structure.TupleType" flags="ng" index="m5gfS">
         <child id="1019070541450015931" name="elementTypes" index="m5gfT" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="5115872837157187871" name="org.iets3.core.expr.base.structure.ParensExpression" flags="ng" index="30bsCy">
@@ -86,7 +86,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -184,16 +184,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/datetime@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/datetime@tests.mps
index e2f7cb3959..0289181792 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/datetime@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/datetime@tests.mps
@@ -31,10 +31,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -42,10 +42,10 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt" />
@@ -321,7 +321,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/math@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/math@tests.mps
index b705e1d744..b33da99a8c 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/math@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/math@tests.mps
@@ -20,7 +20,7 @@
       <concept id="1215603922101" name="jetbrains.mps.lang.test.structure.NodeOperationsContainer" flags="ng" index="7CXmI">
         <child id="1215604436604" name="nodeOperations" index="7EUXB" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="4531408400484511853" name="jetbrains.mps.lang.test.structure.ReportErrorStatementReference" flags="ng" index="2PYRI3" />
@@ -36,15 +36,15 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837157187871" name="org.iets3.core.expr.base.structure.ParensExpression" flags="ng" index="30bsCy">
@@ -203,7 +203,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -211,11 +211,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -228,7 +228,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/messages@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/messages@tests.mps
index 112e6ed80b..16e6a93054 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/messages@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/messages@tests.mps
@@ -20,6 +20,7 @@
         <property id="5097124989038916363" name="projectPath" index="2XOHcw" />
       </concept>
       <concept id="1216913645126" name="jetbrains.mps.lang.test.structure.NodesTestCase" flags="lg" index="1lH9Xt">
+        <property id="2616911529524314943" name="accessMode" index="3DII0k" />
         <child id="2325284917965993569" name="beforeTests" index="0EEgL" />
         <child id="2325284917965993580" name="afterTests" index="0EEgW" />
         <child id="1217501895093" name="testMethods" index="1SL9yI" />
@@ -73,7 +74,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -106,7 +107,7 @@
         <child id="1160998896846" name="condition" index="1gVkn0" />
         <child id="1160998916832" name="message" index="1gVpfI" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
@@ -117,7 +118,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -132,7 +133,7 @@
       <concept id="411710798114972602" name="org.iets3.core.expr.base.structure.FailExpr" flags="ng" index="qoPdK">
         <child id="411710798114972606" name="message" index="qoPdO" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -142,7 +143,7 @@
         <child id="6541611649051509994" name="err" index="2izrR8" />
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -233,7 +234,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -269,7 +270,7 @@
       </concept>
       <concept id="4026566441521058530" name="org.iets3.core.expr.messages.structure.CoercionIt" flags="ng" index="1WJySU" />
       <concept id="4026566441518088795" name="org.iets3.core.expr.messages.structure.Group" flags="ng" index="1WOfU3" />
-      <concept id="4026566441518088787" name="org.iets3.core.expr.messages.structure.IMessageNamespace" flags="ng" index="1WOfUb">
+      <concept id="4026566441518088787" name="org.iets3.core.expr.messages.structure.IMessageNamespace" flags="ngI" index="1WOfUb">
         <child id="4026566441518088822" name="contents" index="1WOfUI" />
       </concept>
       <concept id="4026566441518088783" name="org.iets3.core.expr.messages.structure.MessageContainer" flags="ng" index="1WOfUn">
@@ -304,7 +305,7 @@
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
-      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ng" index="3_9gw8">
+      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ngI" index="3_9gw8">
         <child id="1172075534298" name="message" index="3_9lra" />
       </concept>
     </language>
@@ -312,7 +313,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -340,10 +341,10 @@
       <concept id="4790956042240983401" name="org.iets3.core.expr.lambda.structure.BlockExpression" flags="ng" index="1aduha">
         <child id="4790956042240983402" name="expressions" index="1aduh9" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
     </language>
@@ -1347,6 +1348,7 @@
   </node>
   <node concept="1lH9Xt" id="2TlZyI4PRx_">
     <property role="TrG5h" value="TestingIdentifierConfiguratorEP" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1LZb2c" id="2TlZyI4PRy$" role="1SL9yI">
       <property role="TrG5h" value="testingEP" />
       <node concept="3cqZAl" id="2TlZyI4PRy_" role="3clF45" />
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/mutable@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/mutable@tests.mps
index d72d629ced..7576725ac2 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/mutable@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/mutable@tests.mps
@@ -175,7 +175,7 @@
         <child id="8694548031077660261" name="typeConstraint" index="ynoGV" />
       </concept>
       <concept id="8872269265518788050" name="org.iets3.core.expr.collections.structure.AllOp" flags="ng" index="2TZ5KL" />
-      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ng" index="1bLd8V">
+      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ngI" index="1bLd8V">
         <child id="527291771311128762" name="arg" index="26Ft6C" />
       </concept>
       <concept id="5291952221899372124" name="org.iets3.core.expr.collections.structure.MapLikeType" flags="ng" index="1bPBNu">
@@ -187,7 +187,7 @@
       </concept>
       <concept id="7757419675876255273" name="org.iets3.core.expr.collections.structure.MapKeysOp" flags="ng" index="1hBg8L" />
       <concept id="7757419675876240958" name="org.iets3.core.expr.collections.structure.MapValuesOp" flags="ng" index="1hBkCA" />
-      <concept id="7757419675865128281" name="org.iets3.core.expr.collections.structure.IMapOneArgOp" flags="ng" index="1idJ_1">
+      <concept id="7757419675865128281" name="org.iets3.core.expr.collections.structure.IMapOneArgOp" flags="ngI" index="1idJ_1">
         <child id="7757419675865128346" name="arg" index="1idJA2" />
       </concept>
       <concept id="7554398283340640412" name="org.iets3.core.expr.collections.structure.MapOp" flags="ng" index="3iw6QE" />
@@ -224,10 +224,10 @@
       <concept id="9097157441620016186" name="org.iets3.core.expr.collections.structure.ForeachOp" flags="ng" index="3NG6h4" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -261,10 +261,10 @@
         <reference id="7089558164910719191" name="try" index="2zAAH1" />
       </concept>
       <concept id="7089558164908491660" name="org.iets3.core.expr.base.structure.EmptyExpression" flags="ng" index="2zH6wq" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -274,7 +274,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -455,7 +455,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -545,7 +545,7 @@
         <child id="5456956546147356870" name="count" index="1co17n" />
       </concept>
       <concept id="5456956546137040126" name="org.iets3.core.expr.mutable.structure.ThrowInterceptor" flags="ng" index="1cxEnJ" />
-      <concept id="5456956546136473372" name="org.iets3.core.expr.mutable.structure.IInterceptorContainer" flags="ng" index="1czZSd">
+      <concept id="5456956546136473372" name="org.iets3.core.expr.mutable.structure.IInterceptorContainer" flags="ngI" index="1czZSd">
         <child id="5456956546136477250" name="interceptors" index="1czwXj" />
       </concept>
       <concept id="5456956546137624418" name="org.iets3.core.expr.mutable.structure.ContextArgValue" flags="ng" index="1cZoTN">
@@ -595,7 +595,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -611,7 +611,7 @@
         <child id="5994308065059740883" name="args" index="1v5heY" />
         <child id="5994308065059743871" name="type" index="1v5isi" />
       </concept>
-      <concept id="5994308065059776299" name="org.iets3.core.expr.metafunction.structure.IMetaFunctionContext" flags="ng" index="1v5qx6">
+      <concept id="5994308065059776299" name="org.iets3.core.expr.metafunction.structure.IMetaFunctionContext" flags="ngI" index="1v5qx6">
         <child id="5994308065059799377" name="function" index="1v5wSW" />
       </concept>
       <concept id="5994308065068956525" name="org.iets3.core.expr.metafunction.structure.MetaFunArgRef" flags="ng" index="1vwrg0">
@@ -635,11 +635,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <property id="2861782275883660525" name="ext" index="1HeIcW" />
         <child id="3880322347437217307" name="effect" index="28QfE6" />
         <child id="4790956042240100927" name="args" index="1ahQWs" />
@@ -657,7 +657,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/operatorgroup@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/operatorgroup@tests.mps
index 34ffa9bcae..e9ff005dfd 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/operatorgroup@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/operatorgroup@tests.mps
@@ -23,7 +23,7 @@
       </concept>
       <concept id="8560722270289800014" name="org.iets3.core.expr.base.structure.PlusTag" flags="ng" index="zEY32" />
       <concept id="8560722270290706287" name="org.iets3.core.expr.base.structure.MulTag" flags="ng" index="zJzjz" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="8006404979729416973" name="org.iets3.core.expr.base.structure.OrTag" flags="ng" index="2BFbn_" />
@@ -71,7 +71,7 @@
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -184,13 +184,13 @@
       </node>
       <node concept="_fkuZ" id="1Z72MIc6xWE" role="_fkp5">
         <node concept="_fku$" id="1Z72MIc6xWF" role="_fkur" />
-        <node concept="2vmpn$" id="1Z72MIc6$Bp" role="_fkuS" />
         <node concept="30deo4" id="4EEJFuvaWf4" role="_fkuY">
           <node concept="2vmpn$" id="1Z72MIctSOG" role="30dEsF" />
           <node concept="_emDc" id="4EEJFuvaWbp" role="30dEs_">
             <ref role="_emDf" node="1Z72MIc6zOc" resolve="nix" />
           </node>
         </node>
+        <node concept="2vmpn$" id="1Z72MIc6$Bp" role="_fkuS" />
       </node>
       <node concept="_fkuZ" id="4EEJFuvaWda" role="_fkp5">
         <node concept="_fku$" id="4EEJFuvaWdb" role="_fkur" />
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/statemachines@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/statemachines@tests.mps
index a26d533593..40f2c7f9a5 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/statemachines@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/statemachines@tests.mps
@@ -112,7 +112,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/temporal@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/temporal@tests.mps
index 9fdaae6bf3..a71ec646ac 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/temporal@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/temporal@tests.mps
@@ -75,7 +75,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -102,7 +102,7 @@
       </concept>
       <concept id="1068581242875" name="jetbrains.mps.baseLanguage.structure.PlusExpression" flags="nn" index="3cpWs3" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -117,7 +117,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -129,10 +129,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -143,10 +143,10 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt" />
@@ -300,7 +300,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -453,7 +453,7 @@
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
-      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ng" index="3_9gw8">
+      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ngI" index="3_9gw8">
         <child id="1172075534298" name="message" index="3_9lra" />
       </concept>
       <concept id="8243879142738608185" name="jetbrains.mps.baseLanguage.unitTest.structure.BeforeTest" flags="in" index="1KhYhu" />
@@ -468,7 +468,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -476,11 +476,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -493,7 +493,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.alt@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.alt@tests.mps
index d2269c414d..5a90f137f7 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.alt@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.alt@tests.mps
@@ -15,10 +15,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -36,7 +36,7 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -46,7 +46,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="195141004745644975" name="org.iets3.core.expr.base.structure.AssignmentExpr" flags="ng" index="2YjPKq" />
@@ -118,7 +118,7 @@
       <concept id="4790956042240148643" name="org.iets3.core.expr.toplevel.structure.Function" flags="ng" index="1aga60" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -142,16 +142,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.applicationExamples@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.applicationExamples@tests.mps
index a5debfa5d4..ac8b5a2ae9 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.applicationExamples@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.applicationExamples@tests.mps
@@ -24,10 +24,10 @@
       <concept id="7971844778466793028" name="org.iets3.core.expr.base.structure.AlternativesExpression" flags="ng" index="2fGnzi">
         <child id="7971844778466793162" name="alternatives" index="2fGnxs" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -37,7 +37,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="6527211908668938616" name="org.iets3.core.expr.base.structure.DocWordRef" flags="ng" index="2Jv0Bt">
@@ -142,7 +142,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -177,7 +177,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -191,17 +191,17 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <property id="2861782275883660525" name="ext" index="1HeIcW" />
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.base@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.base@tests.mps
index 6ac0a5c0e9..a28cd069ee 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.base@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.base@tests.mps
@@ -17,10 +17,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -35,10 +35,10 @@
         <child id="7275867333401405429" name="type" index="4IRkZ" />
         <child id="411710798114972606" name="message" index="qoPdO" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -47,7 +47,7 @@
       <concept id="867786408877811036" name="org.iets3.core.expr.base.structure.ContractItem" flags="ng" index="I61DS">
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -177,7 +177,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -215,7 +215,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -237,16 +237,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.collections@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.collections@tests.mps
index ad56c49bc4..da11131e4c 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.collections@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.collections@tests.mps
@@ -22,7 +22,7 @@
       </concept>
     </language>
     <language id="2f7e2e35-6e74-4c43-9fa5-2465d68f5996" name="org.iets3.core.expr.collections">
-      <concept id="527291771330968213" name="org.iets3.core.expr.collections.structure.ISetOneArgOp" flags="ng" index="24uAI7">
+      <concept id="527291771330968213" name="org.iets3.core.expr.collections.structure.ISetOneArgOp" flags="ngI" index="24uAI7">
         <child id="527291771330969242" name="arg" index="24uAY8" />
       </concept>
       <concept id="2156530943179855331" name="org.iets3.core.expr.collections.structure.SetWithOp" flags="ng" index="2iGxMk" />
@@ -66,7 +66,7 @@
       </concept>
       <concept id="8872269265518788050" name="org.iets3.core.expr.collections.structure.AllOp" flags="ng" index="2TZ5KL" />
       <concept id="2554784455264825928" name="org.iets3.core.expr.collections.structure.FlattenOp" flags="ng" index="YMTy_" />
-      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ng" index="1bLd8V">
+      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ngI" index="1bLd8V">
         <child id="527291771311128762" name="arg" index="26Ft6C" />
       </concept>
       <concept id="3989687177013570767" name="org.iets3.core.expr.collections.structure.UpToTarget" flags="ng" index="1hzhIm">
@@ -75,7 +75,7 @@
       <concept id="7757419675876255273" name="org.iets3.core.expr.collections.structure.MapKeysOp" flags="ng" index="1hBg8L" />
       <concept id="7757419675876240958" name="org.iets3.core.expr.collections.structure.MapValuesOp" flags="ng" index="1hBkCA" />
       <concept id="7757419675876236259" name="org.iets3.core.expr.collections.structure.MapContainsKeyOp" flags="ng" index="1hBnZV" />
-      <concept id="7757419675865128281" name="org.iets3.core.expr.collections.structure.IMapOneArgOp" flags="ng" index="1idJ_1">
+      <concept id="7757419675865128281" name="org.iets3.core.expr.collections.structure.IMapOneArgOp" flags="ngI" index="1idJ_1">
         <child id="7757419675865128346" name="arg" index="1idJA2" />
       </concept>
       <concept id="7554398283340640412" name="org.iets3.core.expr.collections.structure.MapOp" flags="ng" index="3iw6QE" />
@@ -129,10 +129,10 @@
       <concept id="4931785860342338319" name="org.iets3.core.expr.collections.structure.FoldLeftOp" flags="ng" index="1XzICj" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -158,10 +158,10 @@
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -170,7 +170,7 @@
       <concept id="867786408877811036" name="org.iets3.core.expr.base.structure.ContractItem" flags="ng" index="I61DS">
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -306,7 +306,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -336,7 +336,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -355,17 +355,17 @@
       <concept id="4790956042241053102" name="org.iets3.core.expr.lambda.structure.ValExpression" flags="ng" index="1adJid">
         <child id="4790956042241053105" name="expr" index="1adJii" />
       </concept>
-      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ng" index="1aeol9">
+      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ngI" index="1aeol9">
         <reference id="4790956042240745579" name="fun" index="1aeol8" />
       </concept>
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -378,7 +378,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.contracts@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.contracts@tests.mps
index ac31bc9c0e..b5030163e3 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.contracts@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.contracts@tests.mps
@@ -50,7 +50,7 @@
       <concept id="4931785860342338319" name="org.iets3.core.expr.collections.structure.FoldLeftOp" flags="ng" index="1XzICj" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -69,10 +69,10 @@
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -84,7 +84,7 @@
       </concept>
       <concept id="867786408877811037" name="org.iets3.core.expr.base.structure.Precondition" flags="ng" index="I61DT" />
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -196,7 +196,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -230,7 +230,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -254,11 +254,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -271,7 +271,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.coverage@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.coverage@tests.mps
index 3b5e016e5d..cffc80cbf4 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.coverage@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.coverage@tests.mps
@@ -116,7 +116,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatable@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatable@tests.mps
index 6ab417bde7..7d1f976ed0 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatable@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatable@tests.mps
@@ -18,16 +18,16 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -78,7 +78,7 @@
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatablegen@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatablegen@tests.mps
index eb87f6e44e..8855d47478 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatablegen@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.datatablegen@tests.mps
@@ -2,7 +2,7 @@
 <model ref="r:12a7a296-b11b-4305-8259-d25f523b38d0(test.in.expr.os.datatablegen@tests)">
   <persistence version="9" />
   <languages>
-    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="5" />
+    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="6" />
     <use id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest" version="1" />
     <use id="8bb1251e-eae5-47ab-9843-33adfae8edaa" name="org.iets3.core.expr.util" version="3" />
     <use id="b25b8ad1-4d3d-4e45-8c78-72091b39fdda" name="org.iets3.core.expr.data" version="2" />
@@ -18,7 +18,7 @@
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -60,7 +60,7 @@
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.dectabs@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.dectabs@tests.mps
index efe43a5b33..c7cd7c3017 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.dectabs@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.dectabs@tests.mps
@@ -56,7 +56,7 @@
         <child id="161551962036658065" name="expr" index="1fMUOQ" />
       </concept>
       <concept id="161551962036658012" name="org.iets3.core.expr.util.structure.MultiDecTab" flags="ng" index="1fMURV" />
-      <concept id="8853770331921611232" name="org.iets3.core.expr.util.structure.IMultiDecTab" flags="ng" index="1vMD3l">
+      <concept id="8853770331921611232" name="org.iets3.core.expr.util.structure.IMultiDecTab" flags="ngI" index="1vMD3l">
         <child id="8853770331921611296" name="colDefs" index="1vMDcl" />
         <child id="8853770331921611812" name="rows" index="1vMDkh" />
       </concept>
@@ -74,7 +74,7 @@
       <concept id="7554398283339757344" name="org.iets3.core.expr.collections.structure.ListType" flags="ng" index="3iBYCm" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -85,10 +85,10 @@
       <concept id="1019070541450015930" name="org.iets3.core.expr.base.structure.TupleType" flags="ng" index="m5gfS">
         <child id="1019070541450015931" name="elementTypes" index="m5gfT" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -195,7 +195,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -206,16 +206,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.enums@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.enums@tests.mps
index f1e067a29d..54fd941442 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.enums@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.enums@tests.mps
@@ -40,7 +40,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -52,10 +52,10 @@
       <concept id="7971844778466793028" name="org.iets3.core.expr.base.structure.AlternativesExpression" flags="ng" index="2fGnzi">
         <child id="7971844778466793162" name="alternatives" index="2fGnxs" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt" />
@@ -149,7 +149,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="7492452870509527020" name="comparisonOrder" index="4Uvns" />
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
@@ -204,7 +204,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -217,16 +217,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.error@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.error@tests.mps
index 7a5798de46..9a0d72c7fe 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.error@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.error@tests.mps
@@ -15,10 +15,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -43,10 +43,10 @@
       <concept id="7089558164910719190" name="org.iets3.core.expr.base.structure.SuccessValueExpr" flags="ng" index="2zAAH0">
         <reference id="7089558164910719191" name="try" index="2zAAH1" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -56,7 +56,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="6481804410367607231" name="org.iets3.core.expr.base.structure.TrySuccessClause" flags="ng" index="2YtBXV">
@@ -157,7 +157,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -166,16 +166,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.functions@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.functions@tests.mps
index 34d9666b06..ff4ebadd11 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.functions@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.functions@tests.mps
@@ -26,7 +26,7 @@
       <concept id="5396945261017737777" name="org.iets3.core.expr.collections.structure.ReverseOp" flags="ng" index="2DPmsJ" />
       <concept id="393796118209799325" name="org.iets3.core.expr.collections.structure.TailOp" flags="ng" index="2IDqZA" />
       <concept id="8872269265513219132" name="org.iets3.core.expr.collections.structure.AsImmutableListOp" flags="ng" index="2TEanv" />
-      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ng" index="1bLd8V">
+      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ngI" index="1bLd8V">
         <child id="527291771311128762" name="arg" index="26Ft6C" />
       </concept>
       <concept id="7554398283340640412" name="org.iets3.core.expr.collections.structure.MapOp" flags="ng" index="3iw6QE" />
@@ -45,10 +45,10 @@
       <concept id="890435239346753529" name="org.iets3.core.expr.collections.structure.SimpleSortOp" flags="ng" index="3$AVBo" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -73,7 +73,7 @@
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
       <concept id="7089558164908491660" name="org.iets3.core.expr.base.structure.EmptyExpression" flags="ng" index="2zH6wq" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -83,7 +83,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="195141004745644975" name="org.iets3.core.expr.base.structure.AssignmentExpr" flags="ng" index="2YjPKq" />
@@ -150,7 +150,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -174,17 +174,17 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <property id="2861782275883660525" name="ext" index="1HeIcW" />
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.ignoredTests@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.ignoredTests@tests.mps
index 32471146c3..d8f7404593 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.ignoredTests@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.ignoredTests@tests.mps
@@ -40,7 +40,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lambda@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lambda@tests.mps
index 5ab4522a1c..6f290348c2 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lambda@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lambda@tests.mps
@@ -31,7 +31,7 @@
       <concept id="7554398283339757344" name="org.iets3.core.expr.collections.structure.ListType" flags="ng" index="3iBYCm" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -46,10 +46,10 @@
       <concept id="7971844778466793028" name="org.iets3.core.expr.base.structure.AlternativesExpression" flags="ng" index="2fGnzi">
         <child id="7971844778466793162" name="alternatives" index="2fGnxs" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -59,7 +59,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="5115872837157187871" name="org.iets3.core.expr.base.structure.ParensExpression" flags="ng" index="30bsCy">
@@ -115,7 +115,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -128,7 +128,7 @@
       <concept id="4790956042240148643" name="org.iets3.core.expr.toplevel.structure.Function" flags="ng" index="1aga60" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -151,17 +151,17 @@
       <concept id="4790956042241053102" name="org.iets3.core.expr.lambda.structure.ValExpression" flags="ng" index="1adJid">
         <child id="4790956042241053105" name="expr" index="1adJii" />
       </concept>
-      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ng" index="1aeol9">
+      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ngI" index="1aeol9">
         <reference id="4790956042240745579" name="fun" index="1aeol8" />
       </concept>
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -177,7 +177,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lookuptable@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lookuptable@tests.mps
index 36597cac9d..6ffd8d4603 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lookuptable@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.lookuptable@tests.mps
@@ -72,7 +72,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.nix@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.nix@tests.mps
index 3d90e3a539..bb2f20328f 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.nix@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.nix@tests.mps
@@ -19,7 +19,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -30,7 +30,7 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="2807135271607939856" name="org.iets3.core.expr.base.structure.OptionType" flags="ng" index="Uns6S">
@@ -146,7 +146,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.numbers@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.numbers@tests.mps
index ab5dce61b6..a86babd889 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.numbers@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.numbers@tests.mps
@@ -21,10 +21,10 @@
         <child id="8219602584757553934" name="tp" index="hiESe" />
       </concept>
       <concept id="8219602584758209317" name="org.iets3.core.expr.base.structure.OkTarget" flags="ng" index="htaS_" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -34,7 +34,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -159,7 +159,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -174,16 +174,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <property id="2861782275883660525" name="ext" index="1HeIcW" />
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.options@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.options@tests.mps
index 20f92612b4..064566f13b 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.options@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.options@tests.mps
@@ -37,7 +37,7 @@
       <concept id="6414340278546763815" name="org.iets3.core.expr.collections.structure.AsSingletonList" flags="ng" index="3MhG1o" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -50,10 +50,10 @@
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -63,7 +63,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -204,7 +204,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -258,7 +258,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -281,16 +281,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.plugin.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.plugin.mps
index 296f7055be..662026c01e 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.plugin.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.plugin.mps
@@ -19,7 +19,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -40,7 +40,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -78,7 +78,7 @@
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
@@ -107,7 +107,7 @@
       <concept id="6677504323281689838" name="jetbrains.mps.lang.smodel.structure.SConceptType" flags="in" index="3bZ5Sz" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.query@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.query@tests.mps
index 1b2fbfb22d..1b4badd501 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.query@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.query@tests.mps
@@ -2,7 +2,7 @@
 <model ref="r:f196894a-6bc3-4955-8759-1868547f56f4(test.in.expr.os.query@tests)">
   <persistence version="9" />
   <languages>
-    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="5" />
+    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="6" />
     <use id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest" version="1" />
     <use id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base" version="0" />
     <use id="8bb1251e-eae5-47ab-9843-33adfae8edaa" name="org.iets3.core.expr.util" version="3" />
@@ -39,7 +39,7 @@
       <concept id="24388123216554083" name="org.iets3.core.expr.collections.structure.FindFirstOp" flags="ng" index="1HmgMX" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -63,7 +63,7 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -137,7 +137,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -147,7 +147,7 @@
       <concept id="8811147530084018358" name="org.iets3.core.expr.toplevel.structure.RecordDeclaration" flags="ng" index="2Ss9d8" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -163,7 +163,7 @@
         <child id="5994308065059740883" name="args" index="1v5heY" />
         <child id="5994308065059743871" name="type" index="1v5isi" />
       </concept>
-      <concept id="5994308065059776299" name="org.iets3.core.expr.metafunction.structure.IMetaFunctionContext" flags="ng" index="1v5qx6">
+      <concept id="5994308065059776299" name="org.iets3.core.expr.metafunction.structure.IMetaFunctionContext" flags="ngI" index="1v5qx6">
         <child id="5994308065059799377" name="function" index="1v5wSW" />
       </concept>
       <concept id="5994308065068956525" name="org.iets3.core.expr.metafunction.structure.MetaFunArgRef" flags="ng" index="1vwrg0">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.records@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.records@tests.mps
index 27f8be1bfb..57b7c4679b 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.records@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.records@tests.mps
@@ -61,7 +61,7 @@
       <concept id="4931785860342338319" name="org.iets3.core.expr.collections.structure.FoldLeftOp" flags="ng" index="1XzICj" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -72,10 +72,10 @@
       <concept id="7782108600712067692" name="org.iets3.core.expr.base.structure.DeRefTarget" flags="ng" index="n2Y3A" />
       <concept id="7782108600709141067" name="org.iets3.core.expr.base.structure.MakeRefTarget" flags="ng" index="ne4z1" />
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -84,7 +84,7 @@
       <concept id="867786408877811036" name="org.iets3.core.expr.base.structure.ContractItem" flags="ng" index="I61DS">
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -207,7 +207,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="7492452870509527020" name="comparisonOrder" index="4Uvns" />
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
@@ -258,7 +258,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -287,11 +287,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -304,7 +304,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.strings@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.strings@tests.mps
index 4f2de777cf..89f20de110 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.strings@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.strings@tests.mps
@@ -19,10 +19,10 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608145920" name="org.iets3.core.expr.base.structure.IsSomeExpression" flags="ng" index="UmaEC">
@@ -130,7 +130,7 @@
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.stringvalidation@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.stringvalidation@tests.mps
index 9e3a45caf0..dd0804c0bb 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.stringvalidation@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.stringvalidation@tests.mps
@@ -29,7 +29,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -41,10 +41,10 @@
       <concept id="7971844778466793028" name="org.iets3.core.expr.base.structure.AlternativesExpression" flags="ng" index="2fGnzi">
         <child id="7971844778466793162" name="alternatives" index="2fGnxs" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837157187871" name="org.iets3.core.expr.base.structure.ParensExpression" flags="ng" index="30bsCy">
@@ -205,7 +205,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -216,16 +216,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tests@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tests@tests.mps
index f6ee63e019..dfd7e2a717 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tests@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tests@tests.mps
@@ -29,7 +29,7 @@
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt">
@@ -85,7 +85,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -94,11 +94,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -106,7 +106,7 @@
       <concept id="8237981399438528802" name="org.iets3.core.expr.lambda.structure.AssertExpr" flags="ng" index="3hB25d">
         <child id="8237981399438528812" name="expr" index="3hB253" />
       </concept>
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tolerance@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tolerance@tests.mps
index 4a250bec53..3e9761053b 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tolerance@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tolerance@tests.mps
@@ -15,7 +15,7 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
@@ -63,7 +63,7 @@
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tuples@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tuples@tests.mps
index 30359e17e2..e2f09cb793 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tuples@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.tuples@tests.mps
@@ -32,7 +32,7 @@
       <concept id="7554398283339757344" name="org.iets3.core.expr.collections.structure.ListType" flags="ng" index="3iBYCm" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -49,10 +49,10 @@
       <concept id="2403760773179476914" name="org.iets3.core.expr.base.structure.NCopiesOp" flags="ng" index="ze_g2">
         <child id="2403760773179493048" name="times" index="zexk8" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -125,7 +125,7 @@
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.typedefs@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.typedefs@tests.mps
index 56e1a366d6..5e02ffcf8b 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.typedefs@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/test.in.expr.os.typedefs@tests.mps
@@ -27,10 +27,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -42,10 +42,10 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -54,7 +54,7 @@
       <concept id="867786408877811036" name="org.iets3.core.expr.base.structure.ContractItem" flags="ng" index="I61DS">
         <child id="867786408877811038" name="expr" index="I61DU" />
       </concept>
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -140,7 +140,7 @@
       </concept>
       <concept id="543569365052765011" name="org.iets3.core.expr.toplevel.structure.EmptyToplevelContent" flags="ng" index="_ixoA" />
       <concept id="3315773615451992747" name="org.iets3.core.expr.toplevel.structure.TypedefContractValExpr" flags="ng" index="QCKKy" />
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -161,7 +161,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -180,16 +180,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/todo@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/todo@tests.mps
index 735b5a1e82..f85f81d6dd 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/todo@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/todo@tests.mps
@@ -36,7 +36,7 @@
       <concept id="593359455454548610" name="org.iets3.core.expr.util.structure.RootTreeNode" flags="ng" index="3AgdJ5" />
     </language>
     <language id="2f7e2e35-6e74-4c43-9fa5-2465d68f5996" name="org.iets3.core.expr.collections">
-      <concept id="527291771330968213" name="org.iets3.core.expr.collections.structure.ISetOneArgOp" flags="ng" index="24uAI7">
+      <concept id="527291771330968213" name="org.iets3.core.expr.collections.structure.ISetOneArgOp" flags="ngI" index="24uAI7">
         <child id="527291771330969242" name="arg" index="24uAY8" />
       </concept>
       <concept id="2156530943179855331" name="org.iets3.core.expr.collections.structure.SetWithOp" flags="ng" index="2iGxMk" />
@@ -62,10 +62,10 @@
         <child id="8694548031077660261" name="typeConstraint" index="ynoGV" />
         <child id="8872269265520081294" name="elements" index="2TO1xH" />
       </concept>
-      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ng" index="1bLd8V">
+      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ngI" index="1bLd8V">
         <child id="527291771311128762" name="arg" index="26Ft6C" />
       </concept>
-      <concept id="7757419675865128281" name="org.iets3.core.expr.collections.structure.IMapOneArgOp" flags="ng" index="1idJ_1">
+      <concept id="7757419675865128281" name="org.iets3.core.expr.collections.structure.IMapOneArgOp" flags="ngI" index="1idJ_1">
         <child id="7757419675865128346" name="arg" index="1idJA2" />
       </concept>
       <concept id="7554398283340715406" name="org.iets3.core.expr.collections.structure.WhereOp" flags="ng" index="3izCyS" />
@@ -95,10 +95,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -134,10 +134,10 @@
       <concept id="7089558164910719190" name="org.iets3.core.expr.base.structure.SuccessValueExpr" flags="ng" index="2zAAH0">
         <reference id="7089558164910719191" name="try" index="2zAAH1" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -149,7 +149,7 @@
       </concept>
       <concept id="867786408877811037" name="org.iets3.core.expr.base.structure.Precondition" flags="ng" index="I61DT" />
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -314,7 +314,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -374,7 +374,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7" />
@@ -405,17 +405,17 @@
       <concept id="4790956042241053102" name="org.iets3.core.expr.lambda.structure.ValExpression" flags="ng" index="1adJid">
         <child id="4790956042241053105" name="expr" index="1adJij" />
       </concept>
-      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ng" index="1aeol9">
+      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ngI" index="1aeol9">
         <reference id="4790956042240745579" name="fun" index="1aeol8" />
       </concept>
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -431,7 +431,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/utils@tests.mps b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/utils@tests.mps
index 1871028242..b7f8ed5454 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/utils@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/models/utils@tests.mps
@@ -71,7 +71,7 @@
         <child id="8853770331932198877" name="target" index="1vqeVC" />
         <child id="8853770331926305952" name="values" index="1vwJml" />
       </concept>
-      <concept id="8853770331921611232" name="org.iets3.core.expr.util.structure.IMultiDecTab" flags="ng" index="1vMD3l">
+      <concept id="8853770331921611232" name="org.iets3.core.expr.util.structure.IMultiDecTab" flags="ngI" index="1vMD3l">
         <child id="8853770331921611296" name="colDefs" index="1vMDcl" />
         <child id="8853770331921611812" name="rows" index="1vMDkh" />
       </concept>
@@ -85,10 +85,10 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -113,10 +113,10 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="195141004745644975" name="org.iets3.core.expr.base.structure.AssignmentExpr" flags="ng" index="2YjPKq" />
@@ -215,7 +215,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -232,16 +232,16 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.in.expr.os/test.in.expr.os.msd b/code/languages/org.iets3.opensource/tests/test.in.expr.os/test.in.expr.os.msd
index f4d67c59d9..68ec6d781c 100644
--- a/code/languages/org.iets3.opensource/tests/test.in.expr.os/test.in.expr.os.msd
+++ b/code/languages/org.iets3.opensource/tests/test.in.expr.os/test.in.expr.os.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="test.in.expr.os" uuid="2614fab6-e994-4127-9a5d-8c8cd7ba2833" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="test.in.expr.os" uuid="2614fab6-e994-4127-9a5d-8c8cd7ba2833" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
     <dependency reexport="false">71934284-d7d1-45ee-a054-8c072591085f(org.iets3.core.expr.toplevel)</dependency>
@@ -42,7 +41,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
diff --git a/code/languages/org.iets3.opensource/tests/test.node.expr.os/models/test.node.expr.os.base@tests.mps b/code/languages/org.iets3.opensource/tests/test.node.expr.os/models/test.node.expr.os.base@tests.mps
new file mode 100644
index 0000000000..cac1c24fd5
--- /dev/null
+++ b/code/languages/org.iets3.opensource/tests/test.node.expr.os/models/test.node.expr.os.base@tests.mps
@@ -0,0 +1,7795 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<model ref="r:e2e07902-f4df-4657-a46b-274f84cc1eb9(test.node.expr.os.base@tests)">
+  <persistence version="9" />
+  <languages>
+    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="6" />
+    <use id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest" version="1" />
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="2" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="19" />
+    <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="5" />
+  </languages>
+  <imports>
+    <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" />
+    <import index="hm2y" ref="r:66e07cb4-a4b0-4bf3-a36d-5e9ed1ff1bd3(org.iets3.core.expr.base.structure)" />
+    <import index="2ahs" ref="r:ea6cf71d-29d2-478d-8027-a9f4a4de53c4(com.mbeddr.mpsutil.interpreter.rt)" />
+    <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
+    <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" />
+    <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" implicit="true" />
+    <import index="5qo5" ref="r:6d93ddb1-b0b0-4eee-8079-51303666672a(org.iets3.core.expr.simpleTypes.structure)" implicit="true" />
+  </imports>
+  <registry>
+    <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
+      <concept id="5097124989038916362" name="jetbrains.mps.lang.test.structure.TestInfo" flags="ng" index="2XOHcx">
+        <property id="5097124989038916363" name="projectPath" index="2XOHcw" />
+      </concept>
+      <concept id="1216913645126" name="jetbrains.mps.lang.test.structure.NodesTestCase" flags="lg" index="1lH9Xt">
+        <property id="2616911529524314943" name="accessMode" index="3DII0k" />
+        <child id="1216993439383" name="methods" index="1qtyYc" />
+        <child id="1217501895093" name="testMethods" index="1SL9yI" />
+      </concept>
+      <concept id="1225978065297" name="jetbrains.mps.lang.test.structure.SimpleNodeTest" flags="ng" index="1LZb2c" />
+    </language>
+    <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
+      <concept id="4836112446988635817" name="jetbrains.mps.baseLanguage.structure.UndefinedType" flags="in" index="2jxLKc" />
+      <concept id="1202948039474" name="jetbrains.mps.baseLanguage.structure.InstanceMethodCallOperation" flags="nn" index="liA8E" />
+      <concept id="1465982738277781862" name="jetbrains.mps.baseLanguage.structure.PlaceholderMember" flags="nn" index="2tJIrI" />
+      <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
+        <reference id="1188208074048" name="annotation" index="2AI5Lk" />
+      </concept>
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
+        <child id="1188208488637" name="annotation" index="2AJF6D" />
+      </concept>
+      <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
+        <child id="1154032183016" name="body" index="2LFqv$" />
+      </concept>
+      <concept id="1197027756228" name="jetbrains.mps.baseLanguage.structure.DotExpression" flags="nn" index="2OqwBi">
+        <child id="1197027771414" name="operand" index="2Oq$k0" />
+        <child id="1197027833540" name="operation" index="2OqNvi" />
+      </concept>
+      <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
+        <child id="1145553007750" name="creator" index="2ShVmc" />
+      </concept>
+      <concept id="1070475926800" name="jetbrains.mps.baseLanguage.structure.StringLiteral" flags="nn" index="Xl_RD">
+        <property id="1070475926801" name="value" index="Xl_RC" />
+      </concept>
+      <concept id="1182160077978" name="jetbrains.mps.baseLanguage.structure.AnonymousClassCreator" flags="nn" index="YeOm9">
+        <child id="1182160096073" name="cls" index="YeSDq" />
+      </concept>
+      <concept id="1081236700937" name="jetbrains.mps.baseLanguage.structure.StaticMethodCall" flags="nn" index="2YIFZM">
+        <reference id="1144433194310" name="classConcept" index="1Pybhc" />
+      </concept>
+      <concept id="1070533707846" name="jetbrains.mps.baseLanguage.structure.StaticFieldReference" flags="nn" index="10M0yZ">
+        <reference id="1144433057691" name="classifier" index="1PxDUh" />
+      </concept>
+      <concept id="1070534058343" name="jetbrains.mps.baseLanguage.structure.NullLiteral" flags="nn" index="10Nm6u" />
+      <concept id="1070534370425" name="jetbrains.mps.baseLanguage.structure.IntegerType" flags="in" index="10Oyi0" />
+      <concept id="1070534644030" name="jetbrains.mps.baseLanguage.structure.BooleanType" flags="in" index="10P_77" />
+      <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
+        <child id="1068431790190" name="initializer" index="33vP2m" />
+      </concept>
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
+        <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
+      </concept>
+      <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
+        <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
+      </concept>
+      <concept id="1068498886292" name="jetbrains.mps.baseLanguage.structure.ParameterDeclaration" flags="ir" index="37vLTG" />
+      <concept id="1225271177708" name="jetbrains.mps.baseLanguage.structure.StringType" flags="in" index="17QB3L" />
+      <concept id="1225271283259" name="jetbrains.mps.baseLanguage.structure.NPEEqualsExpression" flags="nn" index="17R0WA" />
+      <concept id="4972933694980447171" name="jetbrains.mps.baseLanguage.structure.BaseVariableDeclaration" flags="ng" index="19Szcq">
+        <child id="5680397130376446158" name="type" index="1tU5fm" />
+      </concept>
+      <concept id="1068580123132" name="jetbrains.mps.baseLanguage.structure.BaseMethodDeclaration" flags="ng" index="3clF44">
+        <child id="1068580123133" name="returnType" index="3clF45" />
+        <child id="1068580123134" name="parameter" index="3clF46" />
+        <child id="1068580123135" name="body" index="3clF47" />
+      </concept>
+      <concept id="1068580123165" name="jetbrains.mps.baseLanguage.structure.InstanceMethodDeclaration" flags="ig" index="3clFb_" />
+      <concept id="1068580123155" name="jetbrains.mps.baseLanguage.structure.ExpressionStatement" flags="nn" index="3clFbF">
+        <child id="1068580123156" name="expression" index="3clFbG" />
+      </concept>
+      <concept id="1068580123157" name="jetbrains.mps.baseLanguage.structure.Statement" flags="nn" index="3clFbH" />
+      <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
+        <child id="1068581517665" name="statement" index="3cqZAp" />
+      </concept>
+      <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT" />
+      <concept id="1068580320020" name="jetbrains.mps.baseLanguage.structure.IntegerConstant" flags="nn" index="3cmrfG">
+        <property id="1068580320021" name="value" index="3cmrfH" />
+      </concept>
+      <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
+        <child id="1068581517676" name="expression" index="3cqZAk" />
+      </concept>
+      <concept id="1068581242864" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclarationStatement" flags="nn" index="3cpWs8">
+        <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
+      </concept>
+      <concept id="1068581242869" name="jetbrains.mps.baseLanguage.structure.MinusExpression" flags="nn" index="3cpWsd" />
+      <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
+      <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
+      <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
+        <child id="1081516765348" name="expression" index="3fr31v" />
+      </concept>
+      <concept id="1154542696413" name="jetbrains.mps.baseLanguage.structure.ArrayCreatorWithInitializer" flags="nn" index="3g6Rrh">
+        <child id="1154542793668" name="componentType" index="3g7fb8" />
+        <child id="1154542803372" name="initValue" index="3g7hyw" />
+      </concept>
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
+        <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
+        <child id="1068499141038" name="actualArgument" index="37wK5m" />
+      </concept>
+      <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk" />
+      <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
+        <property id="521412098689998745" name="nonStatic" index="2bfB8j" />
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+            <node concept="2YIFZM" id="7YuIrX$ErKv" role="2Oq$k0">
+              <ref role="37wK5l" to="pbu6:7LZDtvhWVCM" resolve="newInstance" />
+              <ref role="1Pybhc" to="pbu6:7LZDtvhy76p" resolve="IDefaultCoverageAnalyzer" />
+            </node>
+            <node concept="liA8E" id="7YuIrX$ErKw" role="2OqNvi">
+              <ref role="37wK5l" to="wyt6:~Object.getClass()" resolve="getClass" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+  </node>
+</model>
+
diff --git a/code/languages/org.iets3.opensource/tests/test.node.expr.os/test.node.expr.os.msd b/code/languages/org.iets3.opensource/tests/test.node.expr.os/test.node.expr.os.msd
new file mode 100644
index 0000000000..fdeffa2e5e
--- /dev/null
+++ b/code/languages/org.iets3.opensource/tests/test.node.expr.os/test.node.expr.os.msd
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<solution name="test.node.expr.os" uuid="145c1cd8-5aba-4aa8-8911-7357b875715e" moduleVersion="0">
+  <models>
+    <modelRoot type="default" contentPath="${module}">
+      <sourceRoot location="models" />
+    </modelRoot>
+  </models>
+  <facets>
+    <facet compile="mps" classes="mps" ext="no" type="java">
+      <classes generated="true" path="${module}/classes_gen" />
+    </facet>
+  </facets>
+  <dependencies>
+    <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
+    <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
+    <dependency reexport="false">cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)</dependency>
+    <dependency reexport="false">735f86bc-17fb-4d1c-a664-82c2b8e8a34e(com.mbeddr.mpsutil.interpreter.rt)</dependency>
+    <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
+  </dependencies>
+  <languageVersions>
+    <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
+    <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
+    <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
+    <language slang="l:f61473f9-130f-42f6-b98d-6c438812c2f6:jetbrains.mps.baseLanguage.unitTest" version="1" />
+    <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
+    <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
+    <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
+    <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />
+    <language slang="l:8585453e-6bfb-4d80-98de-b16074f1d86c:jetbrains.mps.lang.test" version="6" />
+    <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
+  </languageVersions>
+  <dependencyVersions>
+    <module reference="3f233e7f-b8a6-46d2-a57f-795d56775243(Annotations)" version="0" />
+    <module reference="6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)" version="0" />
+    <module reference="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)" version="0" />
+    <module reference="1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)" version="0" />
+    <module reference="498d89d2-c2e9-11e2-ad49-6cf049e62fe5(MPS.IDEA)" version="0" />
+    <module reference="8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)" version="0" />
+    <module reference="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)" version="0" />
+    <module reference="d4280a54-f6df-4383-aa41-d1b2bffa7eb1(com.mbeddr.core.base)" version="3" />
+    <module reference="63e0e566-5131-447e-90e3-12ea330e1a00(com.mbeddr.mpsutil.blutil)" version="0" />
+    <module reference="d3a0fd26-445a-466c-900e-10444ddfed52(com.mbeddr.mpsutil.filepicker)" version="0" />
+    <module reference="47f075a6-558e-4640-a606-7ce0236c8023(com.mbeddr.mpsutil.interpreter)" version="0" />
+    <module reference="735f86bc-17fb-4d1c-a664-82c2b8e8a34e(com.mbeddr.mpsutil.interpreter.rt)" version="0" />
+    <module reference="d09a16fb-1d68-4a92-a5a4-20b4b2f86a62(com.mbeddr.mpsutil.jung)" version="0" />
+    <module reference="b4d28e19-7d2d-47e9-943e-3a41f97a0e52(com.mbeddr.mpsutil.plantuml.node)" version="0" />
+    <module reference="726886d1-ef90-4249-a08f-1e3ec23a7113(com.mbeddr.mpsutil.traceExplorer)" version="0" />
+    <module reference="848ef45d-e560-4e35-853c-f35a64cc135c(de.itemis.mps.editor.celllayout.runtime)" version="0" />
+    <module reference="24c96a96-b7a1-4f30-82da-0f8e279a2661(de.itemis.mps.editor.celllayout.styles)" version="0" />
+    <module reference="cce85e64-7b37-4ad5-b0e6-9d18324cdfb3(de.itemis.mps.selection.runtime)" version="0" />
+    <module reference="dc038ceb-b7ea-4fea-ac12-55f7400e97ba(de.slisson.mps.editor.multiline.runtime)" version="0" />
+    <module reference="f0fff802-6d26-4d2e-b89d-391357265626(de.slisson.mps.hacks.editor)" version="0" />
+    <module reference="92d2ea16-5a42-4fdf-a676-c7604efe3504(de.slisson.mps.richtext)" version="0" />
+    <module reference="f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)" version="0" />
+    <module reference="fd392034-7849-419d-9071-12563d152375(jetbrains.mps.baseLanguage.closures)" version="0" />
+    <module reference="83888646-71ce-4f1c-9c53-c54016f6ad4f(jetbrains.mps.baseLanguage.collections)" version="0" />
+    <module reference="e39e4a59-8cb6-498e-860e-8fa8361c0d90(jetbrains.mps.baseLanguage.scopes)" version="0" />
+    <module reference="23865718-e2ed-41b5-a132-0da1d04e266d(jetbrains.mps.ide.httpsupport.manager)" version="0" />
+    <module reference="ae6d8005-36be-4cb6-945b-8c8cfc033c51(jetbrains.mps.ide.httpsupport.runtime)" version="0" />
+    <module reference="2d3c70e9-aab2-4870-8d8d-6036800e4103(jetbrains.mps.kernel)" version="0" />
+    <module reference="d936855b-48da-4812-a8a0-2bfddd633ac5(jetbrains.mps.lang.behavior.api)" version="0" />
+    <module reference="ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)" version="0" />
+    <module reference="446c26eb-2b7b-4bf0-9b35-f83fa582753e(jetbrains.mps.lang.modelapi)" version="0" />
+    <module reference="d7eb0a2a-bd50-4576-beae-e4a89db35f20(jetbrains.mps.lang.scopes.runtime)" version="0" />
+    <module reference="7866978e-a0f0-4cc7-81bc-4d213d9375e1(jetbrains.mps.lang.smodel)" version="1" />
+    <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
+    <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
+    <module reference="db8bd035-3f51-41d8-8fed-954c202d18be(org.iets3.analysis.base)" version="1" />
+    <module reference="7b68d745-a7b8-48b9-bd9c-05c0f8725a35(org.iets3.core.base)" version="0" />
+    <module reference="cfaa4966-b7d5-4b69-b66a-309a6e1a7290(org.iets3.core.expr.base)" version="4" />
+    <module reference="6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)" version="2" />
+    <module reference="145c1cd8-5aba-4aa8-8911-7357b875715e(test.node.expr.os)" version="0" />
+  </dependencyVersions>
+</solution>
+
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.IValidNamedConcept@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.IValidNamedConcept@tests.mps
index 7d4b52612d..ca751b0c15 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.IValidNamedConcept@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.IValidNamedConcept@tests.mps
@@ -3,7 +3,7 @@
   <persistence version="9" />
   <attribute name="doNotGenerate" value="false" />
   <languages>
-    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="5" />
+    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="6" />
     <use id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest" version="1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="12" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -39,7 +39,7 @@
         <property id="3743352646565420194" name="includeSelf" index="GvXf4" />
       </concept>
       <concept id="7691029917083831655" name="jetbrains.mps.lang.test.structure.UnknownRuleReference" flags="ng" index="2u4KIi" />
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="5097124989038916362" name="jetbrains.mps.lang.test.structure.TestInfo" flags="ng" index="2XOHcx">
@@ -49,6 +49,7 @@
         <child id="8333855927548182241" name="errorRef" index="39rjcI" />
       </concept>
       <concept id="1216913645126" name="jetbrains.mps.lang.test.structure.NodesTestCase" flags="lg" index="1lH9Xt">
+        <property id="2616911529524314943" name="accessMode" index="3DII0k" />
         <child id="1216993439383" name="methods" index="1qtyYc" />
         <child id="1217501822150" name="nodesToCheck" index="1SKRRt" />
         <child id="1217501895093" name="testMethods" index="1SL9yI" />
@@ -120,7 +121,7 @@
         <child id="1160998896846" name="condition" index="1gVkn0" />
         <child id="1160998916832" name="message" index="1gVpfI" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -128,7 +129,7 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
@@ -141,7 +142,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -163,7 +164,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -180,6 +181,7 @@
   </registry>
   <node concept="1lH9Xt" id="6OMpQn6WPO4">
     <property role="TrG5h" value="TestValidNamedNodes" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="2XrIbr" id="39ERotey$J2" role="1qtyYc">
       <property role="TrG5h" value="checkName" />
       <node concept="17QB3L" id="39ERoteDu_U" role="3clF45" />
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.LeastCommonSuperType@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.LeastCommonSuperType@tests.mps
index 3f1c26fb2e..7673993877 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.LeastCommonSuperType@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.LeastCommonSuperType@tests.mps
@@ -2,7 +2,7 @@
 <model ref="r:84f8cd40-0164-44eb-acf9-1b79e378eb7a(test.ts.expr.os.LeastCommonSuperType@tests)">
   <persistence version="9" />
   <languages>
-    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="5" />
+    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="6" />
     <use id="71934284-d7d1-45ee-a054-8c072591085f" name="org.iets3.core.expr.toplevel" version="4" />
     <use id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base" version="6" />
     <use id="6b277d9a-d52d-416f-a209-1919bd737f50" name="org.iets3.core.expr.simpleTypes" version="3" />
@@ -29,6 +29,7 @@
         <property id="5097124989038916363" name="projectPath" index="2XOHcw" />
       </concept>
       <concept id="1216913645126" name="jetbrains.mps.lang.test.structure.NodesTestCase" flags="lg" index="1lH9Xt">
+        <property id="2616911529524314943" name="accessMode" index="3DII0k" />
         <child id="1217501822150" name="nodesToCheck" index="1SKRRt" />
       </concept>
       <concept id="1216989428737" name="jetbrains.mps.lang.test.structure.TestNode" flags="ng" index="1qefOq">
@@ -61,10 +62,10 @@
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
       <concept id="7089558164908491660" name="org.iets3.core.expr.base.structure.EmptyExpression" flags="ng" index="2zH6wq" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt" />
@@ -103,6 +104,9 @@
       <concept id="7425695345928358745" name="org.iets3.core.expr.simpleTypes.structure.TrueLiteral" flags="ng" index="2vmpnb" />
       <concept id="7425695345928358774" name="org.iets3.core.expr.simpleTypes.structure.FalseLiteral" flags="ng" index="2vmpn$" />
       <concept id="7425695345928349207" name="org.iets3.core.expr.simpleTypes.structure.BooleanType" flags="ng" index="2vmvy5" />
+      <concept id="2915503786126701996" name="org.iets3.core.expr.simpleTypes.structure.StringTypeWithConstraint" flags="ng" index="L5Cqj">
+        <child id="8919433883485586606" name="constraint" index="1_tvlM" />
+      </concept>
       <concept id="5115872837157252552" name="org.iets3.core.expr.simpleTypes.structure.StringLiteral" flags="ng" index="30bdrP">
         <property id="5115872837157252555" name="value" index="30bdrQ" />
       </concept>
@@ -127,7 +131,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -147,7 +151,7 @@
       <concept id="1759375669591494838" name="org.iets3.core.expr.typetags.structure.TaggedType" flags="ng" index="2c7tTJ">
         <child id="1759375669591494841" name="baseType" index="2c7tTw" />
       </concept>
-      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ng" index="3ciMKZ">
+      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ngI" index="3ciMKZ">
         <child id="1759375669591494839" name="tags" index="2c7tTI" />
       </concept>
       <concept id="3359996257534647723" name="org.iets3.core.expr.typetags.structure.TaggedExpression" flags="ng" index="1YnStw">
@@ -158,7 +162,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="4222318806802425298" name="jetbrains.mps.lang.core.structure.SuppressErrorsAnnotation" flags="ng" index="15s5l7">
@@ -166,6 +170,11 @@
         <property id="2423417345669755629" name="filter" index="1eyWvh" />
       </concept>
     </language>
+    <language id="daafa647-f1f7-4b0b-b096-69cd7c8408c0" name="jetbrains.mps.baseLanguage.regexp">
+      <concept id="1174482753837" name="jetbrains.mps.baseLanguage.regexp.structure.StringLiteralRegexp" flags="ng" index="1OC9wW">
+        <property id="1174482761807" name="text" index="1OCb_u" />
+      </concept>
+    </language>
     <language id="9464fa06-5ab9-409b-9274-64ab29588457" name="org.iets3.core.expr.lambda">
       <concept id="4790956042240983401" name="org.iets3.core.expr.lambda.structure.BlockExpression" flags="ng" index="1aduha">
         <child id="4790956042240983402" name="expressions" index="1aduh9" />
@@ -179,22 +188,23 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
   </registry>
   <node concept="1lH9Xt" id="7$68VCkh_0f">
     <property role="TrG5h" value="LeastCommonSuperType" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1qefOq" id="5FFsEXIecet" role="1SKRRt">
       <node concept="15s5l7" id="1e46OlHj8ce" role="lGtFl">
         <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;constraints (cannot be child)&quot;;FLAVOUR_MESSAGE=&quot;Node '(instance of JoinType)' cannot be child of node '(instance of NodeTypeCheckOperation)'&quot;;FLAVOUR_RULE_ID=&quot;[r:9750d418-880f-460d-9880-d67dd111722d(org.iets3.core.expr.base.constraints)/6095949300264944903]&quot;;" />
@@ -374,8 +384,16 @@
                     <property role="2gteVv" value="0" />
                   </node>
                 </node>
-                <node concept="30bdrU" id="1wgc0l$LiN9" role="m5gfT" />
-                <node concept="30bdrU" id="1wgc0l$LiNa" role="m5gfT" />
+                <node concept="L5Cqj" id="2xPWNWppPtd" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPte" role="1_tvlM">
+                    <property role="1OCb_u" value="a" />
+                  </node>
+                </node>
+                <node concept="L5Cqj" id="2xPWNWppPtf" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPtg" role="1_tvlM">
+                    <property role="1OCb_u" value="b" />
+                  </node>
+                </node>
               </node>
             </node>
           </node>
@@ -425,8 +443,16 @@
                     <property role="2gteVv" value="0" />
                   </node>
                 </node>
-                <node concept="30bdrU" id="1wgc0l$Ljm8" role="m5gfT" />
-                <node concept="30bdrU" id="1wgc0l$Ljm9" role="m5gfT" />
+                <node concept="L5Cqj" id="2xPWNWppPth" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPti" role="1_tvlM">
+                    <property role="1OCb_u" value="a" />
+                  </node>
+                </node>
+                <node concept="L5Cqj" id="2xPWNWppPtj" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPtk" role="1_tvlM">
+                    <property role="1OCb_u" value="b" />
+                  </node>
+                </node>
               </node>
             </node>
           </node>
@@ -471,8 +497,16 @@
                       <property role="2gteVv" value="0" />
                     </node>
                   </node>
-                  <node concept="30bdrU" id="1wgc0l$NbLo" role="m5gfT" />
-                  <node concept="30bdrU" id="1wgc0l$NbLp" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtl" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtm" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
+                  <node concept="L5Cqj" id="2xPWNWppPtn" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPto" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
                 </node>
                 <node concept="m5gfS" id="1wgc0l$NbOl" role="m5gfT">
                   <node concept="mLuIC" id="1wgc0l$NbOm" role="m5gfT">
@@ -493,8 +527,16 @@
                       <property role="2gteVv" value="0" />
                     </node>
                   </node>
-                  <node concept="30bdrU" id="1wgc0l$NbOs" role="m5gfT" />
-                  <node concept="30bdrU" id="1wgc0l$NbOt" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtp" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtq" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
+                  <node concept="L5Cqj" id="2xPWNWppPtr" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPts" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
                 </node>
               </node>
             </node>
@@ -735,7 +777,11 @@
                   <node concept="30bdrU" id="1wgc0l$Looq" role="m5gfT" />
                 </node>
                 <node concept="m5gfS" id="1wgc0l$On0D" role="188GKc">
-                  <node concept="30bdrU" id="1wgc0l$On5v" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtt" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtu" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
                   <node concept="mLuIC" id="1wgc0l$On0H" role="m5gfT">
                     <node concept="2gteSW" id="1wgc0l$On0I" role="2gteSx">
                       <property role="2gteSQ" value="1" />
@@ -745,8 +791,16 @@
                       <property role="2gteVv" value="0" />
                     </node>
                   </node>
-                  <node concept="30bdrU" id="1wgc0l$On0K" role="m5gfT" />
-                  <node concept="30bdrU" id="1wgc0l$On0L" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtv" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtw" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
+                  <node concept="L5Cqj" id="2xPWNWppPtx" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPty" role="1_tvlM">
+                      <property role="1OCb_u" value="c" />
+                    </node>
+                  </node>
                 </node>
               </node>
             </node>
@@ -1123,7 +1177,11 @@
                   <node concept="30bdrU" id="6unC0YG7J0H" role="m5gfT" />
                 </node>
                 <node concept="m5gfS" id="6unC0YG7J0I" role="188GKc">
-                  <node concept="30bdrU" id="6unC0YG7J0J" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtz" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPt$" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
                   <node concept="mLuIC" id="6unC0YG7J0K" role="m5gfT">
                     <node concept="2gteSW" id="6unC0YG7J0L" role="2gteSx">
                       <property role="2gteSQ" value="1" />
@@ -1133,7 +1191,11 @@
                       <property role="2gteVv" value="0" />
                     </node>
                   </node>
-                  <node concept="30bdrU" id="6unC0YG7J0N" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPt_" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtA" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
                   <node concept="Unsod" id="6unC0YG7PgD" role="m5gfT" />
                 </node>
               </node>
@@ -1375,8 +1437,16 @@
                         <property role="2gteVv" value="0" />
                       </node>
                     </node>
-                    <node concept="30bdrU" id="2Ml_6NDRQZf" role="m5gfT" />
-                    <node concept="30bdrU" id="2Ml_6NDRQZg" role="m5gfT" />
+                    <node concept="L5Cqj" id="2xPWNWppPtB" role="m5gfT">
+                      <node concept="1OC9wW" id="2xPWNWppPtC" role="1_tvlM">
+                        <property role="1OCb_u" value="a" />
+                      </node>
+                    </node>
+                    <node concept="L5Cqj" id="2xPWNWppPtD" role="m5gfT">
+                      <node concept="1OC9wW" id="2xPWNWppPtE" role="1_tvlM">
+                        <property role="1OCb_u" value="b" />
+                      </node>
+                    </node>
                   </node>
                 </node>
                 <node concept="m5gfS" id="2Ml_6NDRQYX" role="188GKc">
@@ -1399,7 +1469,11 @@
                         <property role="2gteVv" value="0" />
                       </node>
                     </node>
-                    <node concept="30bdrU" id="2Ml_6NDRQZ5" role="m5gfT" />
+                    <node concept="L5Cqj" id="2xPWNWppPtF" role="m5gfT">
+                      <node concept="1OC9wW" id="2xPWNWppPtG" role="1_tvlM">
+                        <property role="1OCb_u" value="b" />
+                      </node>
+                    </node>
                     <node concept="2vmvy5" id="2Ml_6NDRQZ6" role="m5gfT" />
                   </node>
                 </node>
@@ -2859,6 +2933,7 @@
   </node>
   <node concept="1lH9Xt" id="7iQqdOBdOo$">
     <property role="TrG5h" value="LeastCommonSuperTypesWithUnits" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1qefOq" id="7iQqdOBegTi" role="1SKRRt">
       <node concept="15s5l7" id="7L68ksb2mgO" role="lGtFl">
         <property role="1eyWvh" value="FLAVOUR_ISSUE_KIND=&quot;typesystem (typesystem)&quot;;FLAVOUR_MESSAGE=&quot;Error: The different types \&quot;number[1|5.7]{1}&lt;SIUnits.kg&gt;, number[-5|3.34]{2}&lt;SIUnits.cd&gt;\&quot; are incompatible. Only types with same unit are compatible.&quot;;FLAVOUR_RULE_ID=&quot;[r:42a3bc53-29b1-44d6-9767-7c921cef7ba0(org.iets3.core.expr.typetags.typesystem)/7718893141589771813]&quot;;" />
@@ -2943,8 +3018,16 @@
                     </node>
                   </node>
                 </node>
-                <node concept="30bdrU" id="7iQqdOBdT4r" role="m5gfT" />
-                <node concept="30bdrU" id="7iQqdOBesGv" role="m5gfT" />
+                <node concept="L5Cqj" id="2xPWNWppPtH" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPtI" role="1_tvlM">
+                    <property role="1OCb_u" value="a" />
+                  </node>
+                </node>
+                <node concept="L5Cqj" id="2xPWNWppPtJ" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPtK" role="1_tvlM">
+                    <property role="1OCb_u" value="b" />
+                  </node>
+                </node>
               </node>
             </node>
           </node>
@@ -3023,8 +3106,16 @@
                     </node>
                   </node>
                 </node>
-                <node concept="30bdrU" id="7iQqdOBerW9" role="m5gfT" />
-                <node concept="30bdrU" id="7iQqdOBexqv" role="m5gfT" />
+                <node concept="L5Cqj" id="2xPWNWppPtL" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPtM" role="1_tvlM">
+                    <property role="1OCb_u" value="a" />
+                  </node>
+                </node>
+                <node concept="L5Cqj" id="2xPWNWppPtN" role="m5gfT">
+                  <node concept="1OC9wW" id="2xPWNWppPtO" role="1_tvlM">
+                    <property role="1OCb_u" value="b" />
+                  </node>
+                </node>
               </node>
             </node>
           </node>
@@ -3084,8 +3175,16 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="30bdrU" id="7iQqdOBeEMQ" role="m5gfT" />
-                  <node concept="30bdrU" id="7iQqdOBeEMR" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtP" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtQ" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
+                  <node concept="L5Cqj" id="2xPWNWppPtR" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtS" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
                 </node>
                 <node concept="m5gfS" id="7iQqdOBeEMS" role="m5gfT">
                   <node concept="2c7tTJ" id="7iQqdOBeFLy" role="m5gfT">
@@ -3120,8 +3219,16 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="30bdrU" id="7iQqdOBeEMZ" role="m5gfT" />
-                  <node concept="30bdrU" id="7iQqdOBeEN0" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtT" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtU" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
+                  <node concept="L5Cqj" id="2xPWNWppPtV" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtW" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
                 </node>
               </node>
             </node>
@@ -3364,8 +3471,16 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="30bdrU" id="7iQqdOBeReV" role="m5gfT" />
-                  <node concept="30bdrU" id="7iQqdOBeReW" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPtX" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPtY" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
+                  <node concept="L5Cqj" id="2xPWNWppPtZ" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPu0" role="1_tvlM">
+                      <property role="1OCb_u" value="b" />
+                    </node>
+                  </node>
                 </node>
               </node>
             </node>
@@ -3652,7 +3767,11 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="30bdrU" id="x6NxUzqOzI" role="m5gfT" />
+                  <node concept="L5Cqj" id="2xPWNWppPu1" role="m5gfT">
+                    <node concept="1OC9wW" id="2xPWNWppPu2" role="1_tvlM">
+                      <property role="1OCb_u" value="a" />
+                    </node>
+                  </node>
                   <node concept="Unsod" id="x6NxUzqOG0" role="m5gfT" />
                 </node>
               </node>
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.base@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.base@tests.mps
index 4e63ad1cf7..234179933a 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.base@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.base@tests.mps
@@ -23,7 +23,7 @@
       <concept id="1215603922101" name="jetbrains.mps.lang.test.structure.NodeOperationsContainer" flags="ng" index="7CXmI">
         <child id="1215604436604" name="nodeOperations" index="7EUXB" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="4531408400484511853" name="jetbrains.mps.lang.test.structure.ReportErrorStatementReference" flags="ng" index="2PYRI3" />
@@ -60,7 +60,7 @@
         <property id="1068580320021" name="value" index="3cmrfH" />
       </concept>
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
       </concept>
     </language>
@@ -68,7 +68,7 @@
       <concept id="606861080870797309" name="org.iets3.core.expr.base.structure.IfElseSection" flags="ng" index="pf3Wd">
         <child id="606861080870797310" name="expr" index="pf3We" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="5115872837156687890" name="org.iets3.core.expr.base.structure.LessExpression" flags="ng" index="30d6GJ" />
@@ -127,7 +127,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.bindingtimes@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.bindingtimes@tests.mps
index 3ef2979542..c4cc4b206c 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.bindingtimes@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.bindingtimes@tests.mps
@@ -2,7 +2,7 @@
 <model ref="r:ed0dc053-fc6f-4fd7-b7ae-7adafb379a0c(test.ts.expr.os.bindingtimes@tests)">
   <persistence version="9" />
   <languages>
-    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="5" />
+    <use id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test" version="6" />
     <use id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest" version="1" />
     <use id="71934284-d7d1-45ee-a054-8c072591085f" name="org.iets3.core.expr.toplevel" version="4" />
     <use id="9c3cc6fb-ae5e-46d1-ace2-1e08bb47d03d" name="org.iets3.core.expr.typetags.bindingtime" version="0" />
@@ -21,7 +21,7 @@
       <concept id="1215603922101" name="jetbrains.mps.lang.test.structure.NodeOperationsContainer" flags="ng" index="7CXmI">
         <child id="1215604436604" name="nodeOperations" index="7EUXB" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="4531408400484511853" name="jetbrains.mps.lang.test.structure.ReportErrorStatementReference" flags="ng" index="2PYRI3" />
@@ -29,6 +29,7 @@
         <property id="5097124989038916363" name="projectPath" index="2XOHcw" />
       </concept>
       <concept id="1216913645126" name="jetbrains.mps.lang.test.structure.NodesTestCase" flags="lg" index="1lH9Xt">
+        <property id="2616911529524314943" name="accessMode" index="3DII0k" />
         <child id="1217501822150" name="nodesToCheck" index="1SKRRt" />
       </concept>
       <concept id="1216989428737" name="jetbrains.mps.lang.test.structure.TestNode" flags="ng" index="1qefOq">
@@ -36,7 +37,7 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="5115872837156578546" name="org.iets3.core.expr.base.structure.PlusExpression" flags="ng" index="30dDZf" />
@@ -106,7 +107,7 @@
       <concept id="1759375669591494838" name="org.iets3.core.expr.typetags.structure.TaggedType" flags="ng" index="2c7tTJ">
         <child id="1759375669591494841" name="baseType" index="2c7tTw" />
       </concept>
-      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ng" index="3ciMKZ">
+      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ngI" index="3ciMKZ">
         <child id="1759375669591494839" name="tags" index="2c7tTI" />
       </concept>
     </language>
@@ -114,13 +115,14 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
   </registry>
   <node concept="1lH9Xt" id="2ahKK8qZGjd">
     <property role="TrG5h" value="BindingTimesTypeSystem" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1qefOq" id="2ahKK8qZGjg" role="1SKRRt">
       <node concept="_iOnU" id="2ahKK8qZGjk" role="1qenE9">
         <property role="TrG5h" value="TestBTtypeSystem" />
@@ -370,6 +372,7 @@
   </node>
   <node concept="1lH9Xt" id="1CvMCa_pvyR">
     <property role="TrG5h" value="CycleDetection" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1qefOq" id="1CvMCa_pvyS" role="1SKRRt">
       <node concept="_iOnU" id="1CvMCa_pvyW" role="1qenE9">
         <property role="TrG5h" value="CycleDetection" />
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.phyunits@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.phyunits@tests.mps
index ebe7bfdcf6..e8cdde1fd3 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.phyunits@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.phyunits@tests.mps
@@ -40,6 +40,7 @@
     <import index="rppw" ref="r:720d563d-1633-46b3-a98e-08d2fde4c4a8(org.iets3.core.expr.typetags.physunits.behavior)" />
     <import index="65nr" ref="r:6e69e40f-b186-4866-917f-dbdef5b3c590(org.iets3.core.expr.typetags.physunits.plugin)" />
     <import index="xfg9" ref="r:ac28053f-2041-47f6-806b-ecfaca05a64a(org.iets3.core.expr.base.runtime.runtime)" />
+    <import index="lui2" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.module(MPS.OpenAPI/)" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" implicit="true" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" implicit="true" />
     <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" implicit="true" />
@@ -227,9 +228,6 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
-      <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
-        <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
-      </concept>
       <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
         <child id="1145553007750" name="creator" index="2ShVmc" />
       </concept>
@@ -499,6 +497,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -688,6 +687,9 @@
       </concept>
       <concept id="1883223317721008713" name="jetbrains.mps.lang.smodel.structure.IfInstanceOfVariable" flags="ng" index="JncvC" />
       <concept id="1883223317721107059" name="jetbrains.mps.lang.smodel.structure.IfInstanceOfVarReference" flags="nn" index="Jnkvi" />
+      <concept id="1145404486709" name="jetbrains.mps.lang.smodel.structure.SemanticDowncastExpression" flags="nn" index="2JrnkZ">
+        <child id="1145404616321" name="leftExpression" index="2JrQYb" />
+      </concept>
       <concept id="3648723375513868532" name="jetbrains.mps.lang.smodel.structure.NodePointer_ResolveOperation" flags="ng" index="Vyspw" />
       <concept id="1139621453865" name="jetbrains.mps.lang.smodel.structure.Node_IsInstanceOfOperation" flags="nn" index="1mIQ4w">
         <child id="1177027386292" name="conceptArgument" index="cj9EA" />
@@ -778,7 +780,6 @@
         <child id="1237721435807" name="elementType" index="HW$YZ" />
       </concept>
       <concept id="1227008614712" name="jetbrains.mps.baseLanguage.collections.structure.LinkedListCreator" flags="nn" index="2Jqq0_" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -1318,7 +1319,7 @@
                       <node concept="3clFbF" id="6q$NxWg9sye" role="3cqZAp">
                         <node concept="2OqwBi" id="6q$NxWg9syg" role="3clFbG">
                           <node concept="37vLTw" id="6q$NxWg9syh" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6q$NxWg9syk" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1biQP" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="3eEp8AD3wF5" role="2OqNvi">
                             <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -1326,9 +1327,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6q$NxWg9syk" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1biQP" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6q$NxWg9syl" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1biQQ" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="6q$NxWg9sym" role="2S7zOq">
@@ -1359,7 +1360,7 @@
                       <node concept="3clFbF" id="6q$NxWg9yyA" role="3cqZAp">
                         <node concept="2OqwBi" id="6q$NxWg9yyC" role="3clFbG">
                           <node concept="37vLTw" id="6q$NxWg9yyD" role="2Oq$k0">
-                            <ref role="3cqZAo" node="6q$NxWg9yyG" resolve="it" />
+                            <ref role="3cqZAo" node="2FZhxW1biQR" resolve="it" />
                           </node>
                           <node concept="2qgKlT" id="3eEp8AD3$nC" role="2OqNvi">
                             <ref role="37wK5l" to="tpcu:hEwIMiw" resolve="getPresentation" />
@@ -1367,9 +1368,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6q$NxWg9yyG" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1biQR" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6q$NxWg9yyH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1biQS" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="6q$NxWg9yyI" role="2S7zOq">
@@ -9108,8 +9109,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="2x0M_l2MIIH" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhojhg" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -9170,8 +9171,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="2x0M_l2MK4k" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhoEIX" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -9232,8 +9233,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="2x0M_l2MKgh" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhoELZ" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -9294,8 +9295,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="2x0M_l2MKs1" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhoEOQ" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -9794,6 +9795,22 @@
       <property role="TrG5h" value="assertUnitTypeMatches" />
       <node concept="3cqZAl" id="EsE2hyiLtJ" role="3clF45" />
       <node concept="3clFbS" id="EsE2hyiLq5" role="3clF47">
+        <node concept="3cpWs8" id="5RtoZfdcsqf" role="3cqZAp">
+          <node concept="3cpWsn" id="5RtoZfdcsqg" role="3cpWs9">
+            <property role="TrG5h" value="repo" />
+            <node concept="3uibUv" id="5RtoZfdcsgP" role="1tU5fm">
+              <ref role="3uigEE" to="lui2:~SRepository" resolve="SRepository" />
+            </node>
+            <node concept="2OqwBi" id="5RtoZfdcsqh" role="33vP2m">
+              <node concept="2JrnkZ" id="5RtoZfdcsqi" role="2Oq$k0">
+                <node concept="1jGwE1" id="5RtoZfdcsqj" role="2JrQYb" />
+              </node>
+              <node concept="liA8E" id="5RtoZfdcsqk" role="2OqNvi">
+                <ref role="37wK5l" to="mhbf:~SModel.getRepository()" resolve="getRepository" />
+              </node>
+            </node>
+          </node>
+        </node>
         <node concept="3vlDli" id="EsE2hyiLvL" role="3cqZAp">
           <node concept="2OqwBi" id="EsE2hyj3Xm" role="3tpDZB">
             <node concept="1PxgMI" id="EsE2hyj3Jk" role="2Oq$k0">
@@ -9807,11 +9824,8 @@
                     <ref role="3cqZAo" node="EsE2hyiLuy" resolve="unit" />
                   </node>
                   <node concept="Vyspw" id="EsE2hyiLKN" role="2OqNvi">
-                    <node concept="2OqwBi" id="EsE2hyiLUi" role="Vysub">
-                      <node concept="1jGwE1" id="EsE2hyiLL6" role="2Oq$k0" />
-                      <node concept="liA8E" id="EsE2hyiM2a" role="2OqNvi">
-                        <ref role="37wK5l" to="mhbf:~SModel.getRepository()" resolve="getRepository" />
-                      </node>
+                    <node concept="37vLTw" id="5RtoZfdcsql" role="Vysub">
+                      <ref role="3cqZAo" node="5RtoZfdcsqg" resolve="repo" />
                     </node>
                   </node>
                 </node>
@@ -9827,11 +9841,8 @@
               <ref role="3cqZAo" node="EsE2hyiLuE" resolve="quantity" />
             </node>
             <node concept="Vyspw" id="EsE2hyiM5c" role="2OqNvi">
-              <node concept="2OqwBi" id="EsE2hyiM7h" role="Vysub">
-                <node concept="1jGwE1" id="EsE2hyiM5Z" role="2Oq$k0" />
-                <node concept="liA8E" id="EsE2hyiM9l" role="2OqNvi">
-                  <ref role="37wK5l" to="mhbf:~SModel.getRepository()" resolve="getRepository" />
-                </node>
+              <node concept="37vLTw" id="5RtoZfdcsvw" role="Vysub">
+                <ref role="3cqZAo" node="5RtoZfdcsqg" resolve="repo" />
               </node>
             </node>
           </node>
@@ -9863,10 +9874,12 @@
               </node>
               <node concept="Vyspw" id="EsE2hyjYE6" role="2OqNvi">
                 <node concept="2OqwBi" id="EsE2hyjYO7" role="Vysub">
-                  <node concept="1jGwE1" id="EsE2hyjYEL" role="2Oq$k0" />
                   <node concept="liA8E" id="EsE2hyjYW9" role="2OqNvi">
                     <ref role="37wK5l" to="mhbf:~SModel.getRepository()" resolve="getRepository" />
                   </node>
+                  <node concept="2JrnkZ" id="5RtoZfdcsku" role="2Oq$k0">
+                    <node concept="1jGwE1" id="5RtoZfdcskv" role="2JrQYb" />
+                  </node>
                 </node>
               </node>
             </node>
@@ -10440,10 +10453,10 @@
                           <node concept="liA8E" id="2NJGAccqAms" role="2OqNvi">
                             <ref role="37wK5l" to="33ny:~Comparator.compare(java.lang.Object,java.lang.Object)" resolve="compare" />
                             <node concept="37vLTw" id="2NJGAccqAmt" role="37wK5m">
-                              <ref role="3cqZAo" node="2NJGAccqAmv" resolve="a" />
+                              <ref role="3cqZAo" node="2FZhxW1biQT" resolve="a" />
                             </node>
                             <node concept="37vLTw" id="2NJGAccqAmu" role="37wK5m">
-                              <ref role="3cqZAo" node="2NJGAccqAmx" resolve="b" />
+                              <ref role="3cqZAo" node="2FZhxW1biQV" resolve="b" />
                             </node>
                           </node>
                           <node concept="2OqwBi" id="HeBpG26_K" role="2Oq$k0">
@@ -10458,13 +10471,13 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="2NJGAccqAmv" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1biQT" role="1bW2Oz">
                       <property role="TrG5h" value="a" />
-                      <node concept="2jxLKc" id="2NJGAccqAmw" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1biQU" role="1tU5fm" />
                     </node>
-                    <node concept="Rh6nW" id="2NJGAccqAmx" role="1bW2Oz">
+                    <node concept="gl6BB" id="2FZhxW1biQV" role="1bW2Oz">
                       <property role="TrG5h" value="b" />
-                      <node concept="2jxLKc" id="2NJGAccqAmy" role="1tU5fm" />
+                      <node concept="2jxLKc" id="2FZhxW1biQW" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="2NJGAccqAmz" role="2Dq5b$">
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.plugin.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.plugin.mps
index 21f7ec1316..8ee57858b5 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.plugin.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.plugin.mps
@@ -2,7 +2,7 @@
 <model ref="r:df6d55ea-0ac0-4364-9581-8cb45ef224d6(test.ts.expr.os.plugin)">
   <persistence version="9" />
   <languages>
-    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="5" />
+    <use id="28f9e497-3b42-4291-aeba-0a1039153ab1" name="jetbrains.mps.lang.plugin" version="6" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="c7d5b9dd-a05f-4be2-bc73-f2e16994cc67" name="jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <use id="c0080a47-7e37-4558-bee9-9ae18e690549" name="jetbrains.mps.lang.extension" version="2" />
@@ -27,7 +27,7 @@
       <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
         <reference id="1188208074048" name="annotation" index="2AI5Lk" />
       </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
+      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ngI" index="2AJDlI">
         <child id="1188208488637" name="annotation" index="2AJF6D" />
       </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
@@ -55,7 +55,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -92,7 +92,7 @@
         <reference id="1107535924139" name="classifier" index="3uigEE" />
         <child id="1109201940907" name="parameter" index="11_B2D" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="6329021646629104954" name="jetbrains.mps.baseLanguage.structure.SingleLineComment" flags="nn" index="3SKdUt">
@@ -124,7 +124,7 @@
       </concept>
     </language>
     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.records@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.records@tests.mps
index 9acedb33e6..122282d258 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.records@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.records@tests.mps
@@ -80,7 +80,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -90,7 +90,7 @@
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156761033" name="org.iets3.core.expr.base.structure.EqualsExpression" flags="ng" index="30cPrO" />
@@ -121,7 +121,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -132,7 +132,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -149,7 +149,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -391,6 +391,7 @@
   </node>
   <node concept="1lH9Xt" id="4Ab6HDmqyCz">
     <property role="TrG5h" value="RecordValueTest" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1qefOq" id="4Ab6HDmumD4" role="1SKRRt">
       <node concept="2Ss9d8" id="4Ab6HDmumD9" role="1qenE9">
         <property role="TrG5h" value="myRecord" />
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.temporal@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.temporal@tests.mps
index 7032b3779c..155e888e92 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.temporal@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test.ts.expr.os.temporal@tests.mps
@@ -29,7 +29,7 @@
       <concept id="1215607067978" name="jetbrains.mps.lang.test.structure.CheckNodeForErrorMessagesOperation" flags="ng" index="7OXhh">
         <property id="3743352646565420194" name="includeSelf" index="GvXf4" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="4531408400486526326" name="jetbrains.mps.lang.test.structure.WarningStatementReference" flags="ng" index="2PQEqo" />
@@ -57,13 +57,13 @@
       </concept>
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
       <concept id="2390066428848651932" name="org.iets3.core.expr.base.structure.BangOp" flags="ng" index="wdKpt" />
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="5115872837156802409" name="org.iets3.core.expr.base.structure.UnaryExpression" flags="ng" index="30czhk">
@@ -108,7 +108,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -154,7 +154,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -167,7 +167,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test/ts/expr/os/m1@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test/ts/expr/os/m1@tests.mps
index 904e9d5585..931aec5099 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test/ts/expr/os/m1@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/test/ts/expr/os/m1@tests.mps
@@ -10,14 +10,16 @@
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
     <use id="64e79176-30a1-4836-821c-bf62ff6c6091" name="org.iets3.core.expr.natlang" version="-1" />
-    <use id="5fe6cb13-2fbd-4e21-9842-785bdd6fc5b1" name="org.iets3.core.expr.adt" version="3" />
+    <use id="5fe6cb13-2fbd-4e21-9842-785bdd6fc5b1" name="org.iets3.core.expr.adt" version="-1" />
     <use id="289fb12b-7f53-4ef7-bc2e-1ed2c6a7c998" name="org.iets3.core.expr.datetime" version="-1" />
-    <use id="8bb1251e-eae5-47ab-9843-33adfae8edaa" name="org.iets3.core.expr.util" version="3" />
-    <use id="b25b8ad1-4d3d-4e45-8c78-72091b39fdda" name="org.iets3.core.expr.data" version="2" />
+    <use id="8bb1251e-eae5-47ab-9843-33adfae8edaa" name="org.iets3.core.expr.util" version="-1" />
+    <use id="b25b8ad1-4d3d-4e45-8c78-72091b39fdda" name="org.iets3.core.expr.data" version="-1" />
     <use id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest" version="-1" />
     <use id="e776175c-3bf6-498e-ad36-e4c7dfa5fbe9" name="com.mbeddr.mpsutil.httpsupport" version="0" />
     <use id="817e4e70-961e-4a95-98a1-15e9f32231f1" name="jetbrains.mps.ide.httpsupport" version="0" />
     <use id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base" version="6" />
+    <use id="63e0e566-5131-447e-90e3-12ea330e1a00" name="com.mbeddr.mpsutil.blutil" version="3" />
+    <use id="daafa647-f1f7-4b0b-b096-69cd7c8408c0" name="jetbrains.mps.baseLanguage.regexp" version="0" />
     <devkit ref="c4e521ab-b605-4ef9-a7c3-68075da058f0(org.iets3.core.expr.core.devkit)" />
   </languages>
   <imports>
@@ -37,10 +39,13 @@
     <import index="bg10" ref="r:a71eb8ca-1a88-4b3c-85ef-63f23e5a12e0(org.iets3.core.expr.mutable.typesystem)" />
     <import index="iyw" ref="r:3b5d2a4d-f539-4854-bc25-c43da4b5202c(org.iets3.core.expr.lambda.typesystem)" />
     <import index="n0yb" ref="r:1fd78142-d7d8-42c9-9cbb-0609b1bc5311(org.iets3.core.expr.collections.typesystem)" />
+    <import index="ym7l" ref="r:050f6d52-a81b-4b31-9a1c-531c1a04708e(org.iets3.core.expr.simpleTypes.typesystem)" />
     <import index="pbu6" ref="r:83e946de-2a7f-4a4c-b3c9-4f671aa7f2db(org.iets3.core.expr.base.behavior)" implicit="true" />
     <import index="xlxw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.math(JDK/)" implicit="true" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" implicit="true" />
     <import index="hm2y" ref="r:66e07cb4-a4b0-4bf3-a36d-5e9ed1ff1bd3(org.iets3.core.expr.base.structure)" implicit="true" />
+    <import index="tpfp" ref="r:00000000-0000-4000-0000-011c89590519(jetbrains.mps.baseLanguage.regexp.jetbrains.mps.regexp.accessory)" implicit="true" />
+    <import index="ji8m" ref="r:1e7c5960-15a6-42cc-930a-1c74551c2ace(com.mbeddr.mpsutil.blutil.accessory)" implicit="true" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -66,7 +71,7 @@
         <child id="6626913010124294914" name="migration" index="3ea0P7" />
       </concept>
       <concept id="7691029917083831655" name="jetbrains.mps.lang.test.structure.UnknownRuleReference" flags="ng" index="2u4KIi" />
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="428590876651279930" name="jetbrains.mps.lang.test.structure.NodeTypeSystemErrorCheckOperation" flags="ng" index="2DdRWr">
@@ -112,7 +117,7 @@
         <child id="161551962036658065" name="expr" index="1fMUOQ" />
       </concept>
       <concept id="161551962036658012" name="org.iets3.core.expr.util.structure.MultiDecTab" flags="ng" index="1fMURV" />
-      <concept id="8853770331921611232" name="org.iets3.core.expr.util.structure.IMultiDecTab" flags="ng" index="1vMD3l">
+      <concept id="8853770331921611232" name="org.iets3.core.expr.util.structure.IMultiDecTab" flags="ngI" index="1vMD3l">
         <child id="8853770331921611296" name="colDefs" index="1vMDcl" />
         <child id="8853770331921611812" name="rows" index="1vMDkh" />
       </concept>
@@ -121,7 +126,7 @@
       </concept>
     </language>
     <language id="2f7e2e35-6e74-4c43-9fa5-2465d68f5996" name="org.iets3.core.expr.collections">
-      <concept id="527291771330968213" name="org.iets3.core.expr.collections.structure.ISetOneArgOp" flags="ng" index="24uAI7">
+      <concept id="527291771330968213" name="org.iets3.core.expr.collections.structure.ISetOneArgOp" flags="ngI" index="24uAI7">
         <child id="527291771330969242" name="arg" index="24uAY8" />
       </concept>
       <concept id="1330041117646892901" name="org.iets3.core.expr.collections.structure.CollectionSizeSpec" flags="ng" index="2gteSW">
@@ -140,7 +145,7 @@
         <child id="8872269265520081294" name="elements" index="2TO1xH" />
       </concept>
       <concept id="2554784455264825928" name="org.iets3.core.expr.collections.structure.FlattenOp" flags="ng" index="YMTy_" />
-      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ng" index="1bLd8V">
+      <concept id="5291952221900249273" name="org.iets3.core.expr.collections.structure.IListOneArgOp" flags="ngI" index="1bLd8V">
         <child id="527291771311128762" name="arg" index="26Ft6C" />
       </concept>
       <concept id="7554398283340640412" name="org.iets3.core.expr.collections.structure.MapOp" flags="ng" index="3iw6QE" />
@@ -220,7 +225,7 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -228,16 +233,36 @@
         <child id="1081773367579" name="rightExpression" index="3uHU7w" />
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
     </language>
+    <language id="63e0e566-5131-447e-90e3-12ea330e1a00" name="com.mbeddr.mpsutil.blutil">
+      <concept id="5911591654125800684" name="com.mbeddr.mpsutil.blutil.structure.HexadecimalRegex" flags="ng" index="2bnNQ_">
+        <property id="5911591654125800685" name="value" index="2bnNQ$" />
+      </concept>
+      <concept id="5911591654126591629" name="com.mbeddr.mpsutil.blutil.structure.ControlCharacterRegex" flags="ng" index="2bqMZ4">
+        <property id="5911591654126591630" name="value" index="2bqMZ7" />
+      </concept>
+      <concept id="9004320021019116238" name="com.mbeddr.mpsutil.blutil.structure.UnicodeByNameRegex" flags="ng" index="1kfouk">
+        <property id="9004320021019116239" name="name" index="1kfoul" />
+      </concept>
+      <concept id="4711998325899141206" name="com.mbeddr.mpsutil.blutil.structure.NamedBackReferenceRegexp" flags="ng" index="1s447l">
+        <reference id="4711998325899141211" name="group" index="1s447o" />
+      </concept>
+      <concept id="4711998325899744567" name="com.mbeddr.mpsutil.blutil.structure.IndependentNonCapturingGroup" flags="ng" index="1s6jiO" />
+      <concept id="4711998325897280822" name="com.mbeddr.mpsutil.blutil.structure.BackReferenceRegexp" flags="ng" index="1scXMP">
+        <property id="4711998325897280825" name="index" index="1scXMU" />
+      </concept>
+      <concept id="4735327607202953643" name="com.mbeddr.mpsutil.blutil.structure.NamedGroupRegexp" flags="ng" index="3NQvFP" />
+      <concept id="1174491169200" name="com.mbeddr.mpsutil.blutil.structure.GroupRegexp" flags="ng" index="1P8g2x" />
+    </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ng" index="0Rz4o">
+      <concept id="7831630342157089621" name="org.iets3.core.base.structure.IDetectNeedToRunManually" flags="ngI" index="0Rz4o">
         <property id="7831630342157089649" name="__hash" index="0Rz4W" />
       </concept>
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -279,10 +304,10 @@
         <reference id="7089558164910719191" name="try" index="2zAAH1" />
       </concept>
       <concept id="7089558164908491660" name="org.iets3.core.expr.base.structure.EmptyExpression" flags="ng" index="2zH6wq" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
-      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ng" index="2_iKZX">
+      <concept id="7071042522334260296" name="org.iets3.core.expr.base.structure.ITyped" flags="ngI" index="2_iKZX">
         <child id="8811147530085329321" name="type" index="2S399n" />
       </concept>
       <concept id="867786408877811041" name="org.iets3.core.expr.base.structure.Contract" flags="ng" index="I61D5">
@@ -294,7 +319,7 @@
       </concept>
       <concept id="867786408877811037" name="org.iets3.core.expr.base.structure.Precondition" flags="ng" index="I61DT" />
       <concept id="867786408877811180" name="org.iets3.core.expr.base.structure.Postcondition" flags="ng" index="I61F8" />
-      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ng" index="I61I7">
+      <concept id="867786408877810851" name="org.iets3.core.expr.base.structure.IContracted" flags="ngI" index="I61I7">
         <child id="867786408877811042" name="contract" index="I61D6" />
       </concept>
       <concept id="867786408882279828" name="org.iets3.core.expr.base.structure.PlainConstraint" flags="ng" index="InuEK" />
@@ -466,6 +491,9 @@
       <concept id="7425695345928358745" name="org.iets3.core.expr.simpleTypes.structure.TrueLiteral" flags="ng" index="2vmpnb" />
       <concept id="7425695345928358774" name="org.iets3.core.expr.simpleTypes.structure.FalseLiteral" flags="ng" index="2vmpn$" />
       <concept id="7425695345928349207" name="org.iets3.core.expr.simpleTypes.structure.BooleanType" flags="ng" index="2vmvy5" />
+      <concept id="2915503786126701996" name="org.iets3.core.expr.simpleTypes.structure.StringTypeWithConstraint" flags="ng" index="L5Cqj">
+        <child id="8919433883485586606" name="constraint" index="1_tvlM" />
+      </concept>
       <concept id="5115872837157252552" name="org.iets3.core.expr.simpleTypes.structure.StringLiteral" flags="ng" index="30bdrP">
         <property id="5115872837157252555" name="value" index="30bdrQ" />
       </concept>
@@ -524,7 +552,7 @@
       <concept id="8811147530085329320" name="org.iets3.core.expr.toplevel.structure.RecordLiteral" flags="ng" index="2S399m">
         <child id="8811147530085329323" name="memberValues" index="2S399l" />
       </concept>
-      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ng" index="S5Q1W">
+      <concept id="602952467877559919" name="org.iets3.core.expr.toplevel.structure.IRecordDeclaration" flags="ngI" index="S5Q1W">
         <child id="602952467877562565" name="members" index="S5Trm" />
       </concept>
       <concept id="8811147530084018370" name="org.iets3.core.expr.toplevel.structure.RecordType" flags="ng" index="2Ss9cW">
@@ -710,7 +738,7 @@
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
-      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ng" index="3_9gw8">
+      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ngI" index="3_9gw8">
         <child id="1172075534298" name="message" index="3_9lra" />
       </concept>
     </language>
@@ -734,7 +762,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
       <concept id="709746936026466394" name="jetbrains.mps.lang.core.structure.ChildAttribute" flags="ng" index="3VBwX9">
@@ -745,6 +773,81 @@
         <child id="3078666699043039389" name="commentedNode" index="8Wnug" />
       </concept>
     </language>
+    <language id="daafa647-f1f7-4b0b-b096-69cd7c8408c0" name="jetbrains.mps.baseLanguage.regexp">
+      <concept id="1174904166999" name="jetbrains.mps.baseLanguage.regexp.structure.NTimesRegexp" flags="ng" index="2dJHH6">
+        <property id="1174904184877" name="n" index="2dJM4W" />
+      </concept>
+      <concept id="1174904442594" name="jetbrains.mps.baseLanguage.regexp.structure.AtLeastNTimesRegexp" flags="ng" index="2dKKZN">
+        <property id="1174904477749" name="n" index="2dKT$$" />
+      </concept>
+      <concept id="1174904605806" name="jetbrains.mps.baseLanguage.regexp.structure.FromNToMTimesRegexp" flags="ng" index="2dLoPZ">
+        <property id="1174904618869" name="n" index="2dLrT$" />
+        <property id="1174904621683" name="m" index="2dLsHy" />
+      </concept>
+      <concept id="1174906321267" name="jetbrains.mps.baseLanguage.regexp.structure.PositiveLookAheadRegexp" flags="ng" index="2dRVxy" />
+      <concept id="1174906468661" name="jetbrains.mps.baseLanguage.regexp.structure.NegativeLookAheadRegexp" flags="ng" index="2dSvw$" />
+      <concept id="1174906544517" name="jetbrains.mps.baseLanguage.regexp.structure.LookRegexp" flags="ng" index="2dSM2k">
+        <child id="1174906566584" name="regexp" index="2dSRqD" />
+      </concept>
+      <concept id="1174906762287" name="jetbrains.mps.baseLanguage.regexp.structure.PositiveLookBehindRegexp" flags="ng" index="2dTBkY" />
+      <concept id="1174906790902" name="jetbrains.mps.baseLanguage.regexp.structure.NegativeLookBehindRegexp" flags="ng" index="2dTIbB" />
+      <concept id="1220021842985" name="jetbrains.mps.baseLanguage.regexp.structure.IntersectionSymbolClassPart" flags="ng" index="eXZkP">
+        <child id="1220356007276" name="right" index="ySIhK" />
+        <child id="1220356033934" name="left" index="ySOMi" />
+      </concept>
+      <concept id="1175161264766" name="jetbrains.mps.baseLanguage.regexp.structure.LineStartRegexp" flags="ng" index="2t4tHJ" />
+      <concept id="1175161300324" name="jetbrains.mps.baseLanguage.regexp.structure.LineEndRegexp" flags="ng" index="2t4AhP" />
+      <concept id="1203415418648" name="jetbrains.mps.baseLanguage.regexp.structure.UnicodeCharacterRegexp" flags="ng" index="L9wo0">
+        <property id="1203415499835" name="code" index="L9Okz" />
+      </concept>
+      <concept id="1174482753837" name="jetbrains.mps.baseLanguage.regexp.structure.StringLiteralRegexp" flags="ng" index="1OC9wW">
+        <property id="1174482761807" name="text" index="1OCb_u" />
+      </concept>
+      <concept id="1174482769792" name="jetbrains.mps.baseLanguage.regexp.structure.OrRegexp" flags="ng" index="1OCdqh" />
+      <concept id="1174482804200" name="jetbrains.mps.baseLanguage.regexp.structure.PlusRegexp" flags="ng" index="1OClNT" />
+      <concept id="1174482808826" name="jetbrains.mps.baseLanguage.regexp.structure.StarRegexp" flags="ng" index="1OCmVF" />
+      <concept id="1174483125581" name="jetbrains.mps.baseLanguage.regexp.structure.RegexpDeclaration" flags="ng" index="1OD$hs">
+        <property id="1174662978120" name="description" index="1ZnDHp" />
+        <child id="1174483133849" name="regexp" index="1ODAi8" />
+      </concept>
+      <concept id="1174484562151" name="jetbrains.mps.baseLanguage.regexp.structure.SeqRegexp" flags="ng" index="1OJ37Q" />
+      <concept id="1174485167097" name="jetbrains.mps.baseLanguage.regexp.structure.BinaryRegexp" flags="ng" index="1OLmFC">
+        <child id="1174485176897" name="left" index="1OLpdg" />
+        <child id="1174485181039" name="right" index="1OLqdY" />
+      </concept>
+      <concept id="1174485235885" name="jetbrains.mps.baseLanguage.regexp.structure.UnaryRegexp" flags="ng" index="1OLBAW">
+        <child id="1174485243418" name="regexp" index="1OLDsb" />
+      </concept>
+      <concept id="1174491169200" name="jetbrains.mps.baseLanguage.regexp.structure.ParensRegexp" flags="ng" index="1P8g2y">
+        <child id="1174491174779" name="expr" index="1P8hpE" />
+      </concept>
+      <concept id="1174552240608" name="jetbrains.mps.baseLanguage.regexp.structure.QuestionRegexp" flags="ng" index="1SLe3L" />
+      <concept id="1174554186090" name="jetbrains.mps.baseLanguage.regexp.structure.SymbolClassRegexp" flags="ng" index="1SSD1V">
+        <child id="1174557628217" name="part" index="1T5LoC" />
+      </concept>
+      <concept id="1174554211468" name="jetbrains.mps.baseLanguage.regexp.structure.PositiveSymbolClassRegexp" flags="ng" index="1SSJmt" />
+      <concept id="1174554238051" name="jetbrains.mps.baseLanguage.regexp.structure.NegativeSymbolClassRegexp" flags="ng" index="1SSPPM" />
+      <concept id="1174555732504" name="jetbrains.mps.baseLanguage.regexp.structure.PredefinedSymbolClassRegexp" flags="ng" index="1SYyG9">
+        <reference id="1174555843709" name="symbolClass" index="1SYXPG" />
+      </concept>
+      <concept id="1174556813606" name="jetbrains.mps.baseLanguage.regexp.structure.DotRegexp" flags="ng" index="1T2EwR" />
+      <concept id="1174557878319" name="jetbrains.mps.baseLanguage.regexp.structure.CharacterSymbolClassPart" flags="ng" index="1T6I$Y">
+        <property id="1174557887320" name="character" index="1T6KD9" />
+      </concept>
+      <concept id="1174558301835" name="jetbrains.mps.baseLanguage.regexp.structure.IntervalSymbolClassPart" flags="ng" index="1T8lYq">
+        <property id="1174558315290" name="start" index="1T8p8b" />
+        <property id="1174558317822" name="end" index="1T8pRJ" />
+      </concept>
+      <concept id="1174660461415" name="jetbrains.mps.baseLanguage.regexp.structure.LazyStarRegexp" flags="ng" index="1Ze39Q" />
+      <concept id="1174660505718" name="jetbrains.mps.baseLanguage.regexp.structure.LazyPlusRegexp" flags="ng" index="1Zee5B" />
+      <concept id="1174660533095" name="jetbrains.mps.baseLanguage.regexp.structure.LazyQuestionRegexp" flags="ng" index="1ZekDQ" />
+      <concept id="1174662351725" name="jetbrains.mps.baseLanguage.regexp.structure.Regexps" flags="ng" index="1ZlgDW">
+        <child id="1174662369010" name="regexp" index="1ZlkZz" />
+      </concept>
+      <concept id="1174662605354" name="jetbrains.mps.baseLanguage.regexp.structure.RegexpDeclarationReferenceRegexp" flags="ng" index="1ZmeGV">
+        <reference id="1174662628918" name="regexp" index="1ZmksB" />
+      </concept>
+    </language>
     <language id="b25b8ad1-4d3d-4e45-8c78-72091b39fdda" name="org.iets3.core.expr.data">
       <concept id="231307155598632952" name="org.iets3.core.expr.data.structure.DataRowOp" flags="ng" index="3CgUdp">
         <reference id="231307155598633890" name="row" index="3CgUW3" />
@@ -797,17 +900,17 @@
       <concept id="4790956042241053102" name="org.iets3.core.expr.lambda.structure.ValExpression" flags="ng" index="1adJid">
         <child id="4790956042241053105" name="expr" index="1adJij" />
       </concept>
-      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ng" index="1aeol9">
+      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ngI" index="1aeol9">
         <reference id="4790956042240745579" name="fun" index="1aeol8" />
       </concept>
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <property id="2861782275883660525" name="ext" index="1HeIcW" />
         <child id="3880322347437217307" name="effect" index="28QfE6" />
         <child id="4790956042240100927" name="args" index="1ahQWs" />
@@ -825,7 +928,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340741814" name="org.iets3.core.expr.lambda.structure.ShortLambdaExpression" flags="ng" index="3izI60">
@@ -20801,6 +20904,7 @@
   </node>
   <node concept="1lH9Xt" id="5gz1ElMSBWl">
     <property role="TrG5h" value="NameBasedTupleAccess" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
     <node concept="1qefOq" id="5gz1ElMSDBM" role="1SKRRt">
       <node concept="_iOnV" id="3JdLLkOFlHM" role="1qenE9">
         <property role="TrG5h" value="tuples" />
@@ -22431,5 +22535,3031 @@
       </node>
     </node>
   </node>
+  <node concept="1lH9Xt" id="3OxSopfZQZs">
+    <property role="TrG5h" value="stringConstraintsTests" />
+    <property role="3DII0k" value="2hh8MJdVwqX/command" />
+    <node concept="1qefOq" id="3OxSopfZQZt" role="1SKRRt">
+      <node concept="_iOnV" id="3OxSopfZQZu" role="1qenE9">
+        <property role="TrG5h" value="stringConstraintsTests" />
+        <node concept="1WbbD7" id="3OxSopfZRqA" role="_iOnC">
+          <property role="TrG5h" value="x" />
+          <node concept="L5Cqj" id="2xPWNWppPu3" role="1WbbD4">
+            <node concept="1OC9wW" id="2xPWNWppPu4" role="1_tvlM">
+              <property role="1OCb_u" value="x" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="3OxSopg2V29" role="_iOnC">
+          <property role="TrG5h" value="xValid" />
+          <node concept="30bdrP" id="3OxSopg2V2P" role="2zPyp_">
+            <property role="30bdrQ" value="x" />
+          </node>
+          <node concept="1WbbFT" id="3OxSopg2V2x" role="2zM23F">
+            <ref role="1WbbFS" node="3OxSopfZRqA" resolve="x" />
+          </node>
+          <node concept="7CXmI" id="3OxSopg2Vbf" role="lGtFl">
+            <node concept="7OXhh" id="3OxSopg2Vcp" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="3OxSopg2V33" role="_iOnC">
+          <property role="TrG5h" value="xInvalid" />
+          <node concept="30bdrP" id="3OxSopg2V4k" role="2zPyp_">
+            <property role="30bdrQ" value="y" />
+            <node concept="7CXmI" id="3OxSopg2V6D" role="lGtFl">
+              <node concept="1TM$A" id="3OxSopg2V8S" role="7EUXB">
+                <node concept="2PYRI3" id="3OxSopg2V8T" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="3OxSopg2V42" role="2zM23F">
+            <ref role="1WbbFS" node="3OxSopfZRqA" resolve="x" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="3OxSopg2Vdz" role="_iOnC" />
+        <node concept="2zPypq" id="46RgPUM6Vn8" role="_iOnC">
+          <property role="TrG5h" value="stringDirectly" />
+          <node concept="30bdrP" id="46RgPUM6Vn9" role="2zPyp_">
+            <property role="30bdrQ" value="x" />
+          </node>
+          <node concept="L5Cqj" id="2xPWNWppPu5" role="2zM23F">
+            <node concept="1OC9wW" id="2xPWNWppPu6" role="1_tvlM">
+              <property role="1OCb_u" value="x" />
+            </node>
+          </node>
+          <node concept="7CXmI" id="46RgPUM6Vnb" role="lGtFl">
+            <node concept="7OXhh" id="46RgPUM6Vnc" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="_ixoA" id="46RgPUM6Vn3" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctvHpy" role="_iOnC">
+          <property role="TrG5h" value="existingRegexp" />
+          <node concept="L5Cqj" id="2xPWNWppPu7" role="1WbbD4">
+            <node concept="1OJ37Q" id="2xPWNWppPu8" role="1_tvlM">
+              <node concept="1OC9wW" id="2xPWNWppPu9" role="1OLqdY">
+                <property role="1OCb_u" value="world" />
+              </node>
+              <node concept="1OJ37Q" id="2xPWNWppPua" role="1OLpdg">
+                <node concept="1SYyG9" id="2xPWNWppPub" role="1OLqdY">
+                  <ref role="1SYXPG" to="tpfp:h5SUD2M" resolve="\s" />
+                </node>
+                <node concept="1ZmeGV" id="2xPWNWppPuc" role="1OLpdg">
+                  <ref role="1ZmksB" node="45$ooctvHpr" resolve="hello" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctvHp_" role="_iOnC">
+          <property role="TrG5h" value="existingRegexpValid" />
+          <node concept="30bdrP" id="45$ooctvHpA" role="2zPyp_">
+            <property role="30bdrQ" value="hello world" />
+          </node>
+          <node concept="1WbbFT" id="45$ooctvHpB" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctvHpy" resolve="existingRegexp" />
+          </node>
+          <node concept="7CXmI" id="45$ooctvHpC" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctvHpD" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctvHpE" role="_iOnC">
+          <property role="TrG5h" value="existingRegexpInvalid" />
+          <node concept="30bdrP" id="45$ooctvHpF" role="2zPyp_">
+            <property role="30bdrQ" value="hi world" />
+            <node concept="7CXmI" id="45$ooctvHpG" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctvHpH" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctvHpI" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctvHpJ" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctvHpy" resolve="existingRegexp" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="45$ooctvHpu" role="_iOnC" />
+        <node concept="1WbbD7" id="3OxSopg2Ve8" role="_iOnC">
+          <property role="TrG5h" value="slash" />
+          <node concept="L5Cqj" id="2xPWNWppPud" role="1WbbD4">
+            <node concept="1OC9wW" id="2xPWNWppPue" role="1_tvlM">
+              <property role="1OCb_u" value="\\" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="3OxSopg2Veb" role="_iOnC">
+          <property role="TrG5h" value="slashValid" />
+          <node concept="30bdrP" id="3OxSopg2Vec" role="2zPyp_">
+            <property role="30bdrQ" value="\\" />
+          </node>
+          <node concept="1WbbFT" id="3OxSopg2Ved" role="2zM23F">
+            <ref role="1WbbFS" node="3OxSopg2Ve8" resolve="slash" />
+          </node>
+          <node concept="7CXmI" id="3OxSopg2Vee" role="lGtFl">
+            <node concept="7OXhh" id="3OxSopg2Vef" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="3OxSopg2Veg" role="_iOnC">
+          <property role="TrG5h" value="slashInvalid" />
+          <node concept="30bdrP" id="3OxSopg2Veh" role="2zPyp_">
+            <property role="30bdrQ" value="x" />
+            <node concept="7CXmI" id="3OxSopg2Vei" role="lGtFl">
+              <node concept="1TM$A" id="3OxSopg2Vej" role="7EUXB">
+                <node concept="2PYRI3" id="3OxSopg2Vek" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="3OxSopg2Vel" role="2zM23F">
+            <ref role="1WbbFS" node="3OxSopg2Ve8" resolve="slash" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="3OxSopfZR0f" role="_iOnC" />
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+            <node concept="7OXhh" id="45$ooctjWbb" role="7EUXB">
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+          <node concept="30bdrP" id="45$ooctjWbd" role="2zPyp_">
+            <property role="30bdrQ" value=" " />
+            <node concept="7CXmI" id="45$ooctjWbe" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctjWbf" role="7EUXB">
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+        <node concept="_ixoA" id="45$ooctjWb2" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctjWne" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPve" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvf" role="1_tvlM">
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+          <node concept="30bdrP" id="45$ooctjWni" role="2zPyp_">
+            <property role="30bdrQ" value="&#10;" />
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+          <node concept="1WbbFT" id="45$ooctjWnj" role="2zM23F">
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+          <node concept="7CXmI" id="45$ooctjWnk" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctjWnl" role="7EUXB">
+              <property role="GvXf4" value="true" />
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+          <property role="TrG5h" value="verticalWhitespaceInvalid" />
+          <node concept="30bdrP" id="45$ooctjWnn" role="2zPyp_">
+            <property role="30bdrQ" value="no" />
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+        <node concept="_ixoA" id="45$ooctjWns" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctjWnt" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPvg" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvh" role="1_tvlM">
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+          <node concept="30bdrP" id="45$ooctjWnx" role="2zPyp_">
+            <property role="30bdrQ" value="n" />
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+          <node concept="1WbbFT" id="45$ooctjWny" role="2zM23F">
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+          <node concept="7CXmI" id="45$ooctjWnz" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctjWn$" role="7EUXB">
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+          <property role="TrG5h" value="nonVerticalWhitespaceInvalid" />
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+            <property role="30bdrQ" value="&#10;" />
+            <node concept="7CXmI" id="45$ooctjWnB" role="lGtFl">
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+        <node concept="_ixoA" id="45$ooctk97k" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctk97o" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPvi" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvj" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SUJUw" resolve="\w" />
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+        </node>
+        <node concept="2zPypq" id="45$ooctk97r" role="_iOnC">
+          <property role="TrG5h" value="wordValid" />
+          <node concept="30bdrP" id="45$ooctk97s" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
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+          <node concept="1WbbFT" id="45$ooctk97t" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctk97o" resolve="word" />
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+          <node concept="7CXmI" id="45$ooctk97u" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctk97v" role="7EUXB">
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+          <property role="TrG5h" value="wordInvalid" />
+          <node concept="30bdrP" id="45$ooctk97x" role="2zPyp_">
+            <property role="30bdrQ" value="$" />
+            <node concept="7CXmI" id="45$ooctk97y" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctk97z" role="7EUXB">
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+        <node concept="1WbbD7" id="45$ooctk9im" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPvk" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvl" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SUNgp" resolve="\W" />
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+        <node concept="2zPypq" id="45$ooctk9ip" role="_iOnC">
+          <property role="TrG5h" value="nonWordValid" />
+          <node concept="30bdrP" id="45$ooctk9iq" role="2zPyp_">
+            <property role="30bdrQ" value="$" />
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+          <node concept="1WbbFT" id="45$ooctk9ir" role="2zM23F">
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+          <node concept="7CXmI" id="45$ooctk9is" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctk9it" role="7EUXB">
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+          <node concept="30bdrP" id="45$ooctk9iv" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
+            <node concept="7CXmI" id="45$ooctk9iw" role="lGtFl">
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+        <node concept="_ixoA" id="45$ooctk9ik" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctk9tk" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPvm" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvn" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SUPxr" resolve="\p{Lower}" />
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+        </node>
+        <node concept="2zPypq" id="45$ooctk9tn" role="_iOnC">
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+          <node concept="30bdrP" id="45$ooctk9to" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
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+            <node concept="7CXmI" id="45$ooctk9tu" role="lGtFl">
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+        <node concept="1WbbD7" id="45$ooctk9De" role="_iOnC">
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+            <node concept="1SYyG9" id="2xPWNWppPvp" role="1_tvlM">
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+        </node>
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+          <node concept="L5Cqj" id="2xPWNWppPvq" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvr" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SUY37" resolve="\p{ASCII}" />
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+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctk9LT" role="_iOnC">
+          <property role="TrG5h" value="asciiValid" />
+          <node concept="30bdrP" id="45$ooctk9LU" role="2zPyp_">
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+          <node concept="30bdrP" id="45$ooctk9LZ" role="2zPyp_">
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+            <node concept="7CXmI" id="45$ooctk9M0" role="lGtFl">
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+            <node concept="1SYyG9" id="2xPWNWppPvt" role="1_tvlM">
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+        <node concept="1WbbD7" id="45$ooctka4f" role="_iOnC">
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+            <node concept="1SYyG9" id="2xPWNWppPvv" role="1_tvlM">
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+        </node>
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+          <property role="TrG5h" value="decimalDigitValid" />
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+          <node concept="1WbbFT" id="45$ooctka4k" role="2zM23F">
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+        <node concept="1WbbD7" id="45$ooctkaiO" role="_iOnC">
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+            <node concept="1SYyG9" id="2xPWNWppPvx" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVbIa" resolve="\p{Alnum}" />
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+          </node>
+        </node>
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+          <property role="TrG5h" value="alphanumericValid" />
+          <node concept="30bdrP" id="45$ooctkaiS" role="2zPyp_">
+            <property role="30bdrQ" value="1" />
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+          <node concept="1WbbFT" id="45$ooctkaiT" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaiO" resolve="alphanumeric" />
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+          <node concept="7CXmI" id="45$ooctkaiU" role="lGtFl">
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+        </node>
+        <node concept="2zPypq" id="45$ooctkaiW" role="_iOnC">
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+          <node concept="30bdrP" id="45$ooctkaiX" role="2zPyp_">
+            <property role="30bdrQ" value="$" />
+            <node concept="7CXmI" id="45$ooctkaiY" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkaiZ" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkaj0" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkaj1" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaiO" resolve="alphanumeric" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="45$ooctkaiL" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkatM" role="_iOnC">
+          <property role="TrG5h" value="punctuation" />
+          <node concept="L5Cqj" id="2xPWNWppPvy" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvz" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVgIf" resolve="\p{Punct}" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkatP" role="_iOnC">
+          <property role="TrG5h" value="punctuationValid" />
+          <node concept="30bdrP" id="45$ooctkatQ" role="2zPyp_">
+            <property role="30bdrQ" value="." />
+          </node>
+          <node concept="1WbbFT" id="45$ooctkatR" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkatM" resolve="punctuation" />
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+          <node concept="7CXmI" id="45$ooctkatS" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkatT" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkatU" role="_iOnC">
+          <property role="TrG5h" value="punctuationInvalid" />
+          <node concept="30bdrP" id="45$ooctkatV" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
+            <node concept="7CXmI" id="45$ooctkatW" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkatX" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkatY" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
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+          <node concept="1WbbFT" id="45$ooctkatZ" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkatM" resolve="punctuation" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="45$ooctkatK" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkaB$" role="_iOnC">
+          <property role="TrG5h" value="visible" />
+          <node concept="L5Cqj" id="2xPWNWppPv$" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPv_" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SV_hV" resolve="\p{Graph}" />
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+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkaBB" role="_iOnC">
+          <property role="TrG5h" value="visibleValid" />
+          <node concept="30bdrP" id="45$ooctkaBC" role="2zPyp_">
+            <property role="30bdrQ" value="." />
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+          <node concept="1WbbFT" id="45$ooctkaBD" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaB$" resolve="visible" />
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+          <node concept="7CXmI" id="45$ooctkaBE" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkaBF" role="7EUXB">
+              <property role="GvXf4" value="true" />
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+        </node>
+        <node concept="2zPypq" id="45$ooctkaBG" role="_iOnC">
+          <property role="TrG5h" value="visibleInvalid" />
+          <node concept="30bdrP" id="45$ooctkaBH" role="2zPyp_">
+            <property role="30bdrQ" value=" " />
+            <node concept="7CXmI" id="45$ooctkaBI" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkaBJ" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkaBK" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
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+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkaBL" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaB$" resolve="visible" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="45$ooctkaBy" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkaOU" role="_iOnC">
+          <property role="TrG5h" value="printable" />
+          <node concept="L5Cqj" id="2xPWNWppPvA" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvB" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVFd6" resolve="\p{Print}" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkaOX" role="_iOnC">
+          <property role="TrG5h" value="printableValid" />
+          <node concept="30bdrP" id="45$ooctkaOY" role="2zPyp_">
+            <property role="30bdrQ" value="." />
+          </node>
+          <node concept="1WbbFT" id="45$ooctkaOZ" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaOU" resolve="printable" />
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+          <node concept="7CXmI" id="45$ooctkaP0" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkaP1" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkaP2" role="_iOnC">
+          <property role="TrG5h" value="printableInvalid" />
+          <node concept="30bdrP" id="45$ooctkaP3" role="2zPyp_">
+            <property role="30bdrQ" value="&#10;" />
+            <node concept="7CXmI" id="45$ooctkaP4" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkaP5" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkaP6" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
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+            </node>
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+          <node concept="1WbbFT" id="45$ooctkaP7" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaOU" resolve="printable" />
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+        </node>
+        <node concept="_ixoA" id="45$ooctkaV7" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkaVb" role="_iOnC">
+          <property role="TrG5h" value="blank" />
+          <node concept="L5Cqj" id="2xPWNWppPvC" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvD" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVI3f" resolve="\p{Blank}" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkaVe" role="_iOnC">
+          <property role="TrG5h" value="blankValid" />
+          <node concept="30bdrP" id="45$ooctkaVf" role="2zPyp_">
+            <property role="30bdrQ" value=" " />
+          </node>
+          <node concept="1WbbFT" id="45$ooctkaVg" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaVb" resolve="blank" />
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+          <node concept="7CXmI" id="45$ooctkaVh" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkaVi" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkaVj" role="_iOnC">
+          <property role="TrG5h" value="blankInvalid" />
+          <node concept="30bdrP" id="45$ooctkaVk" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
+            <node concept="7CXmI" id="45$ooctkaVl" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkaVm" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkaVn" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
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+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkaVo" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkaVb" resolve="blank" />
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+        <node concept="_ixoA" id="45$ooctkaV9" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkb4X" role="_iOnC">
+          <property role="TrG5h" value="controlCharacter2" />
+          <node concept="L5Cqj" id="2xPWNWppPvE" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvF" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVKFX" resolve="\p{Cntrl}" />
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+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkb50" role="_iOnC">
+          <property role="TrG5h" value="controlCharacter2Valid" />
+          <node concept="30bdrP" id="45$ooctkb51" role="2zPyp_">
+            <property role="30bdrQ" value="&#10;" />
+          </node>
+          <node concept="1WbbFT" id="45$ooctkb52" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkb4X" resolve="controlCharacter2" />
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+          <node concept="7CXmI" id="45$ooctkb53" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkb54" role="7EUXB">
+              <property role="GvXf4" value="true" />
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+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkb55" role="_iOnC">
+          <property role="TrG5h" value="controlCharacter2Invalid" />
+          <node concept="30bdrP" id="45$ooctkb56" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
+            <node concept="7CXmI" id="45$ooctkb57" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkb58" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkb59" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
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+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkb5a" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkb4X" resolve="controlCharacter2" />
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+        </node>
+        <node concept="_ixoA" id="45$ooctkfvu" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkfvy" role="_iOnC">
+          <property role="TrG5h" value="hexDigit" />
+          <node concept="L5Cqj" id="2xPWNWppPvG" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvH" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVPmk" resolve="\p{XDigit}" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkfv_" role="_iOnC">
+          <property role="TrG5h" value="hexDigitValid" />
+          <node concept="30bdrP" id="45$ooctkfvA" role="2zPyp_">
+            <property role="30bdrQ" value="F" />
+          </node>
+          <node concept="1WbbFT" id="45$ooctkfvB" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkfvy" resolve="hexDigit" />
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+          <node concept="7CXmI" id="45$ooctkfvC" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkfvD" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkfvE" role="_iOnC">
+          <property role="TrG5h" value="hexDigitInvalid" />
+          <node concept="30bdrP" id="45$ooctkfvF" role="2zPyp_">
+            <property role="30bdrQ" value="G" />
+            <node concept="7CXmI" id="45$ooctkfvG" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkfvH" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctkfvI" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
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+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkfvJ" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkfvy" resolve="hexDigit" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="45$ooctkfvw" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkfJg" role="_iOnC">
+          <property role="TrG5h" value="space" />
+          <node concept="L5Cqj" id="2xPWNWppPvI" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvJ" role="1_tvlM">
+              <ref role="1SYXPG" to="tpfp:h5SVUvV" resolve="\p{Space}" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkfJj" role="_iOnC">
+          <property role="TrG5h" value="spaceValid" />
+          <node concept="30bdrP" id="45$ooctkfJk" role="2zPyp_">
+            <property role="30bdrQ" value=" " />
+          </node>
+          <node concept="1WbbFT" id="45$ooctkfJl" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkfJg" resolve="space" />
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+          <node concept="7CXmI" id="45$ooctkfJm" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkfJn" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkfJo" role="_iOnC">
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+          <node concept="30bdrP" id="45$ooctkfJp" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
+            <node concept="7CXmI" id="45$ooctkfJq" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkfJr" role="7EUXB">
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+          </node>
+          <node concept="1WbbFT" id="45$ooctkfJt" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkfJg" resolve="space" />
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+        <node concept="_ixoA" id="45$ooctkfJe" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkfRQ" role="_iOnC">
+          <property role="TrG5h" value="javaLowerCase" />
+          <node concept="L5Cqj" id="2xPWNWppPvK" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvL" role="1_tvlM">
+              <ref role="1SYXPG" to="ji8m:45$ooctkfUt" resolve="\p{javaLowerCase}" />
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+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkfRT" role="_iOnC">
+          <property role="TrG5h" value="javaLowerCaseValid" />
+          <node concept="30bdrP" id="45$ooctkfRU" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
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+          <node concept="1WbbFT" id="45$ooctkfRV" role="2zM23F">
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+        </node>
+        <node concept="2zPypq" id="45$ooctkfRY" role="_iOnC">
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+          <node concept="30bdrP" id="45$ooctkfRZ" role="2zPyp_">
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+        <node concept="_ixoA" id="45$ooctkfRO" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkg31" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPvM" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvN" role="1_tvlM">
+              <ref role="1SYXPG" to="ji8m:45$ooctkfUx" resolve="\p{javaUpperCase}" />
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+        </node>
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+          <property role="TrG5h" value="javaUpperCaseValid" />
+          <node concept="30bdrP" id="45$ooctkg35" role="2zPyp_">
+            <property role="30bdrQ" value="A" />
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+          <node concept="1WbbFT" id="45$ooctkg36" role="2zM23F">
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+            <node concept="7OXhh" id="45$ooctkg38" role="7EUXB">
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+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkg39" role="_iOnC">
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+          <node concept="30bdrP" id="45$ooctkg3a" role="2zPyp_">
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+            <node concept="7CXmI" id="45$ooctkg3b" role="lGtFl">
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+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkg3e" role="2zM23F">
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+        <node concept="_ixoA" id="45$ooctkh8x" role="_iOnC" />
+        <node concept="1WbbD7" id="45$ooctkh76" role="_iOnC">
+          <property role="TrG5h" value="javaWhitespace" />
+          <node concept="L5Cqj" id="2xPWNWppPvO" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvP" role="1_tvlM">
+              <ref role="1SYXPG" to="ji8m:45$ooctkfU$" resolve="\p{javaWhitespace}" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkh79" role="_iOnC">
+          <property role="TrG5h" value="javaWhitespaceValid" />
+          <node concept="30bdrP" id="45$ooctkh7a" role="2zPyp_">
+            <property role="30bdrQ" value=" " />
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+          <node concept="1WbbFT" id="45$ooctkh7b" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkh76" resolve="javaWhitespace" />
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+          <node concept="7CXmI" id="45$ooctkh7c" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctkh7d" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctkh7e" role="_iOnC">
+          <property role="TrG5h" value="javaWhitespaceInvalid" />
+          <node concept="30bdrP" id="45$ooctkh7f" role="2zPyp_">
+            <property role="30bdrQ" value="a" />
+            <node concept="7CXmI" id="45$ooctkh7g" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctkh7h" role="7EUXB">
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+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctkh7j" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctkh76" resolve="javaWhitespace" />
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+          <node concept="L5Cqj" id="2xPWNWppPvQ" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvR" role="1_tvlM">
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+          <node concept="30bdrP" id="45$ooctkhfM" role="2zPyp_">
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+          <node concept="30bdrP" id="45$ooctkhfR" role="2zPyp_">
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+          <node concept="L5Cqj" id="2xPWNWppPvS" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvT" role="1_tvlM">
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+        <node concept="1WbbD7" id="45$ooctkhAU" role="_iOnC">
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+          <node concept="L5Cqj" id="2xPWNWppPvU" role="1WbbD4">
+            <node concept="1SYyG9" id="2xPWNWppPvV" role="1_tvlM">
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+        <node concept="2zPypq" id="45$ooctkhAX" role="_iOnC">
+          <property role="TrG5h" value="inGreekValid" />
+          <node concept="30bdrP" id="45$ooctkhAY" role="2zPyp_">
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+            <node concept="1SYyG9" id="2xPWNWppPvZ" role="1_tvlM">
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+                <node concept="1T2EwR" id="2xPWNWppPyw" role="1OLDsb" />
+              </node>
+              <node concept="1OJ37Q" id="2xPWNWppPyx" role="1OLpdg">
+                <node concept="1OJ37Q" id="2xPWNWppPyy" role="1OLqdY">
+                  <node concept="1OC9wW" id="2xPWNWppPyz" role="1OLqdY">
+                    <property role="1OCb_u" value="b" />
+                  </node>
+                  <node concept="1OClNT" id="2xPWNWppPy$" role="1OLpdg">
+                    <node concept="1s6jiO" id="2xPWNWppPy_" role="1OLDsb">
+                      <node concept="1OC9wW" id="2xPWNWppPyA" role="2dSRqD">
+                        <property role="1OCb_u" value="a" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="1OCmVF" id="2xPWNWppPyB" role="1OLpdg">
+                  <node concept="1T2EwR" id="2xPWNWppPyC" role="1OLDsb" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctvlmE" role="_iOnC">
+          <property role="TrG5h" value="independentNonCapturingGroupValid" />
+          <node concept="30bdrP" id="45$ooctvlmF" role="2zPyp_">
+            <property role="30bdrQ" value="aaaaab" />
+          </node>
+          <node concept="1WbbFT" id="45$ooctvlmG" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctvlmu" resolve="independentNonCapturingGroup" />
+          </node>
+          <node concept="7CXmI" id="45$ooctvlmH" role="lGtFl">
+            <node concept="7OXhh" id="45$ooctvlmI" role="7EUXB">
+              <property role="GvXf4" value="true" />
+            </node>
+          </node>
+        </node>
+        <node concept="2zPypq" id="45$ooctvlmJ" role="_iOnC">
+          <property role="TrG5h" value="independentNonCapturingGroupInvalid" />
+          <node concept="30bdrP" id="45$ooctvlmK" role="2zPyp_">
+            <property role="30bdrQ" value="bb" />
+            <node concept="7CXmI" id="45$ooctvlmL" role="lGtFl">
+              <node concept="1TM$A" id="45$ooctvlmM" role="7EUXB">
+                <node concept="2PYRI3" id="45$ooctvlmN" role="3lydEf">
+                  <ref role="39XzEq" to="ym7l:3OxSopfY8Ho" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1WbbFT" id="45$ooctvlmO" role="2zM23F">
+            <ref role="1WbbFS" node="45$ooctvlmu" resolve="independentNonCapturingGroup" />
+          </node>
+        </node>
+        <node concept="_ixoA" id="45$ooctvjey" role="_iOnC" />
+        <node concept="7CXmI" id="3OxSopfZR0g" role="lGtFl" />
+      </node>
+    </node>
+  </node>
+  <node concept="1ZlgDW" id="45$ooctvHpq">
+    <property role="TrG5h" value="Regex" />
+    <node concept="1OD$hs" id="45$ooctvHpr" role="1ZlkZz">
+      <property role="TrG5h" value="hello" />
+      <property role="1ZnDHp" value="hello literal" />
+      <node concept="1OC9wW" id="45$ooctvHpt" role="1ODAi8">
+        <property role="1OCb_u" value="hello" />
+      </node>
+    </node>
+  </node>
 </model>
 
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/typetags@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/typetags@tests.mps
index dcb3fd4ab9..18196db3d1 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/typetags@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/typetags@tests.mps
@@ -24,7 +24,7 @@
       <concept id="1215607067978" name="jetbrains.mps.lang.test.structure.CheckNodeForErrorMessagesOperation" flags="ng" index="7OXhh">
         <property id="852155438140865198" name="allowWarnings" index="G7GLP" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="428590876651279930" name="jetbrains.mps.lang.test.structure.NodeTypeSystemErrorCheckOperation" flags="ng" index="2DdRWr" />
@@ -42,7 +42,7 @@
     </language>
     <language id="cfaa4966-b7d5-4b69-b66a-309a6e1a7290" name="org.iets3.core.expr.base">
       <concept id="7089558164908491660" name="org.iets3.core.expr.base.structure.EmptyExpression" flags="ng" index="2zH6wq" />
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="2807135271608265973" name="org.iets3.core.expr.base.structure.NoneLiteral" flags="ng" index="UmHTt" />
@@ -113,7 +113,7 @@
       <concept id="7791618349053218919" name="org.iets3.core.expr.typetags.lib.structure.SanitizeExpression" flags="ng" index="WAJfW" />
     </language>
     <language id="5186c6ce-428c-4f09-a9df-73d9e86c27d3" name="org.iets3.core.expr.typetags">
-      <concept id="5805388625439268916" name="org.iets3.core.expr.typetags.structure.ITagModifier" flags="ng" index="2X$86">
+      <concept id="5805388625439268916" name="org.iets3.core.expr.typetags.structure.ITagModifier" flags="ngI" index="2X$86">
         <child id="2147137078514310917" name="tag" index="t9Br9" />
       </concept>
       <concept id="5805388625439269019" name="org.iets3.core.expr.typetags.structure.AtLeastTag" flags="ng" index="2X$aD" />
@@ -122,7 +122,7 @@
         <child id="1759375669591494841" name="baseType" index="2c7tTw" />
       </concept>
       <concept id="2147137078514310913" name="org.iets3.core.expr.typetags.structure.TagNegation" flags="ng" index="t9Brd" />
-      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ng" index="3ciMKZ">
+      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ngI" index="3ciMKZ">
         <child id="1759375669591494839" name="tags" index="2c7tTI" />
       </concept>
     </language>
@@ -130,7 +130,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -145,22 +145,22 @@
       <concept id="4790956042241053102" name="org.iets3.core.expr.lambda.structure.ValExpression" flags="ng" index="1adJid">
         <child id="4790956042241053105" name="expr" index="1adJii" />
       </concept>
-      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ng" index="1aeol9">
+      <concept id="4790956042240745578" name="org.iets3.core.expr.lambda.structure.IFunctionRef" flags="ngI" index="1aeol9">
         <reference id="4790956042240745579" name="fun" index="1aeol8" />
       </concept>
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
       <concept id="4790956042240100929" name="org.iets3.core.expr.lambda.structure.FunctionArgument" flags="ng" index="1ahQXy" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
       <concept id="7554398283340107702" name="org.iets3.core.expr.lambda.structure.FunctionType" flags="ng" index="3iA5a0">
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/unitsonly@tests.mps b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/unitsonly@tests.mps
index db18981c5b..c9e186847e 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/unitsonly@tests.mps
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/models/unitsonly@tests.mps
@@ -54,7 +54,7 @@
         <property id="852155438140865198" name="allowWarnings" index="G7GLP" />
         <property id="3743352646565420194" name="includeSelf" index="GvXf4" />
       </concept>
-      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ng" index="2u4UPC">
+      <concept id="7691029917083872157" name="jetbrains.mps.lang.test.structure.IRuleReference" flags="ngI" index="2u4UPC">
         <reference id="8333855927540250453" name="declaration" index="39XzEq" />
       </concept>
       <concept id="428590876651279930" name="jetbrains.mps.lang.test.structure.NodeTypeSystemErrorCheckOperation" flags="ng" index="2DdRWr" />
@@ -106,9 +106,6 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
-      <concept id="1197029447546" name="jetbrains.mps.baseLanguage.structure.FieldReferenceOperation" flags="nn" index="2OwXpG">
-        <reference id="1197029500499" name="fieldDeclaration" index="2Oxat5" />
-      </concept>
       <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
         <child id="1145553007750" name="creator" index="2ShVmc" />
       </concept>
@@ -135,7 +132,7 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ngI" index="366HgL">
         <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
       </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
@@ -185,7 +182,7 @@
       <concept id="1160998861373" name="jetbrains.mps.baseLanguage.structure.AssertStatement" flags="nn" index="1gVbGN">
         <child id="1160998896846" name="condition" index="1gVkn0" />
       </concept>
-      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
+      <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ngI" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
@@ -200,7 +197,7 @@
         <child id="1081773367580" name="leftExpression" index="3uHU7B" />
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
-      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
+      <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ngI" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
@@ -215,7 +212,7 @@
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
     </language>
     <language id="7b68d745-a7b8-48b9-bd9c-05c0f8725a35" name="org.iets3.core.base">
-      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ng" index="pfQq$">
+      <concept id="229512757698888199" name="org.iets3.core.base.structure.IOptionallyNamed" flags="ngI" index="pfQq$">
         <child id="229512757698888936" name="optionalName" index="pfQ1b" />
       </concept>
       <concept id="229512757698888202" name="org.iets3.core.base.structure.OptionalNameSpecifier" flags="ng" index="pfQqD">
@@ -287,7 +284,7 @@
       <concept id="7089558164910719190" name="org.iets3.core.expr.base.structure.SuccessValueExpr" flags="ng" index="2zAAH0">
         <reference id="7089558164910719191" name="try" index="2zAAH1" />
       </concept>
-      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ng" index="2zM23E">
+      <concept id="7089558164905593724" name="org.iets3.core.expr.base.structure.IOptionallyTyped" flags="ngI" index="2zM23E">
         <child id="7089558164905593725" name="type" index="2zM23F" />
       </concept>
       <concept id="6481804410367607231" name="org.iets3.core.expr.base.structure.TrySuccessClause" flags="ng" index="2YtBXV">
@@ -414,6 +411,7 @@
       </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="2524418899405758586" name="jetbrains.mps.baseLanguage.closures.structure.InferredClosureParameterDeclaration" flags="ig" index="gl6BB" />
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -443,7 +441,7 @@
     </language>
     <language id="443f4c36-fcf5-4eb6-9500-8d06ed259e3e" name="jetbrains.mps.baseLanguage.classifiers">
       <concept id="1205752633985" name="jetbrains.mps.baseLanguage.classifiers.structure.ThisClassifierExpression" flags="nn" index="2WthIp" />
-      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ng" index="2WEnae">
+      <concept id="1205756064662" name="jetbrains.mps.baseLanguage.classifiers.structure.IMemberOperation" flags="ngI" index="2WEnae">
         <reference id="1205756909548" name="member" index="2WH_rO" />
       </concept>
       <concept id="1205769003971" name="jetbrains.mps.baseLanguage.classifiers.structure.DefaultClassifierMethodDeclaration" flags="ng" index="2XrIbr" />
@@ -533,7 +531,7 @@
       <concept id="1759375669591494838" name="org.iets3.core.expr.typetags.structure.TaggedType" flags="ng" index="2c7tTJ">
         <child id="1759375669591494841" name="baseType" index="2c7tTw" />
       </concept>
-      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ng" index="3ciMKZ">
+      <concept id="8196347919645043518" name="org.iets3.core.expr.typetags.structure.IWithTags" flags="ngI" index="3ciMKZ">
         <child id="1759375669591494839" name="tags" index="2c7tTI" />
       </concept>
       <concept id="3359996257534647723" name="org.iets3.core.expr.typetags.structure.TaggedExpression" flags="ng" index="1YnStw">
@@ -555,7 +553,7 @@
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
-      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ng" index="3_9gw8">
+      <concept id="1172075514136" name="jetbrains.mps.baseLanguage.unitTest.structure.MessageHolder" flags="ngI" index="3_9gw8">
         <child id="1172075534298" name="message" index="3_9lra" />
       </concept>
     </language>
@@ -596,7 +594,7 @@
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
-      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ng" index="TrEIO">
+      <concept id="1169194658468" name="jetbrains.mps.lang.core.structure.INamedConcept" flags="ngI" index="TrEIO">
         <property id="1169194664001" name="name" index="TrG5h" />
       </concept>
     </language>
@@ -604,11 +602,11 @@
       <concept id="4790956042240407469" name="org.iets3.core.expr.lambda.structure.ArgRef" flags="ng" index="1afdae">
         <reference id="4790956042240460422" name="arg" index="1afue_" />
       </concept>
-      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ng" index="1afhQZ">
+      <concept id="4790956042240522396" name="org.iets3.core.expr.lambda.structure.IFunctionCall" flags="ngI" index="1afhQZ">
         <reference id="4790956042240522408" name="function" index="1afhQb" />
         <child id="4790956042240522406" name="args" index="1afhQ5" />
       </concept>
-      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ng" index="1ahQWc">
+      <concept id="4790956042240100911" name="org.iets3.core.expr.lambda.structure.IFunctionLike" flags="ngI" index="1ahQWc">
         <child id="4790956042240100927" name="args" index="1ahQWs" />
         <child id="4790956042240100950" name="body" index="1ahQXP" />
       </concept>
@@ -618,7 +616,7 @@
         <child id="7554398283340318471" name="args" index="3ix9CL" />
       </concept>
       <concept id="7554398283340318478" name="org.iets3.core.expr.lambda.structure.LambdaArg" flags="ng" index="3ix9CS" />
-      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ng" index="3ix9CZ">
+      <concept id="7554398283340318473" name="org.iets3.core.expr.lambda.structure.IArgument" flags="ngI" index="3ix9CZ">
         <child id="7554398283340318476" name="type" index="3ix9CU" />
       </concept>
     </language>
@@ -633,7 +631,6 @@
         <child id="1151688676805" name="elementType" index="_ZDj9" />
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
-      <concept id="1203518072036" name="jetbrains.mps.baseLanguage.collections.structure.SmartClosureParameterDeclaration" flags="ig" index="Rh6nW" />
       <concept id="1205679737078" name="jetbrains.mps.baseLanguage.collections.structure.SortOperation" flags="nn" index="2S7cBI">
         <child id="1205679832066" name="ascending" index="2S7zOq" />
       </concept>
@@ -2577,7 +2574,7 @@
                         <node concept="2OqwBi" id="6q$NxWg9syf" role="3clFbG">
                           <node concept="2OqwBi" id="6q$NxWg9syg" role="2Oq$k0">
                             <node concept="37vLTw" id="6q$NxWg9syh" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6q$NxWg9syk" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817oO" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="6q$NxWg9syi" role="2OqNvi">
                               <ref role="3Tt5mk" to="b0gq:7eOyx9r3qFW" resolve="unit" />
@@ -2589,9 +2586,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6q$NxWg9syk" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817oO" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6q$NxWg9syl" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817oP" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="6q$NxWg9sym" role="2S7zOq">
@@ -2623,7 +2620,7 @@
                         <node concept="2OqwBi" id="6q$NxWg9yyB" role="3clFbG">
                           <node concept="2OqwBi" id="6q$NxWg9yyC" role="2Oq$k0">
                             <node concept="37vLTw" id="6q$NxWg9yyD" role="2Oq$k0">
-                              <ref role="3cqZAo" node="6q$NxWg9yyG" resolve="it" />
+                              <ref role="3cqZAo" node="4z0AnX817oQ" resolve="it" />
                             </node>
                             <node concept="3TrEf2" id="6q$NxWg9yyE" role="2OqNvi">
                               <ref role="3Tt5mk" to="b0gq:7eOyx9r3qFW" resolve="unit" />
@@ -2635,9 +2632,9 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="Rh6nW" id="6q$NxWg9yyG" role="1bW2Oz">
+                    <node concept="gl6BB" id="4z0AnX817oQ" role="1bW2Oz">
                       <property role="TrG5h" value="it" />
-                      <node concept="2jxLKc" id="6q$NxWg9yyH" role="1tU5fm" />
+                      <node concept="2jxLKc" id="4z0AnX817oR" role="1tU5fm" />
                     </node>
                   </node>
                   <node concept="1nlBCl" id="6q$NxWg9yyI" role="2S7zOq">
@@ -7540,8 +7537,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="GJLa3qqYTz" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhojhg" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -7602,8 +7599,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="GJLa3qr0fc" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhoH24" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -7664,8 +7661,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="GJLa3qr0C3" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhoH56" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
@@ -7726,8 +7723,8 @@
                   </node>
                 </node>
               </node>
-              <node concept="2OwXpG" id="GJLa3qr0JT" role="2OqNvi">
-                <ref role="2Oxat5" to="pbu6:7lHetQyBz3x" resolve="value" />
+              <node concept="liA8E" id="7LZDtvhoH7X" role="2OqNvi">
+                <ref role="37wK5l" to="pbu6:7LZDtvhnY37" resolve="getValue" />
               </node>
             </node>
           </node>
diff --git a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/test.ts.expr.os.msd b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/test.ts.expr.os.msd
index dc10c99dc2..305b271529 100644
--- a/code/languages/org.iets3.opensource/tests/test.ts.expr.os/test.ts.expr.os.msd
+++ b/code/languages/org.iets3.opensource/tests/test.ts.expr.os/test.ts.expr.os.msd
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<solution name="test.ts.expr.os" uuid="cf55cddb-d431-4f2e-93f4-3a4305c63d12" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+<solution name="test.ts.expr.os" uuid="cf55cddb-d431-4f2e-93f4-3a4305c63d12" moduleVersion="0">
   <models>
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
@@ -11,7 +11,6 @@
     </facet>
     <facet type="tests" />
   </facets>
-  <sourcePath />
   <dependencies>
     <dependency reexport="false">6b277d9a-d52d-416f-a209-1919bd737f50(org.iets3.core.expr.simpleTypes)</dependency>
     <dependency reexport="false">9464fa06-5ab9-409b-9274-64ab29588457(org.iets3.core.expr.lambda)</dependency>
@@ -53,7 +52,7 @@
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="12" />
     <language slang="l:443f4c36-fcf5-4eb6-9500-8d06ed259e3e:jetbrains.mps.baseLanguage.classifiers" version="0" />
     <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
-    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="1" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="2" />
     <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
     <language slang="l:c7d5b9dd-a05f-4be2-bc73-f2e16994cc67:jetbrains.mps.baseLanguage.lightweightdsl" version="1" />
     <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
@@ -63,7 +62,7 @@
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:c0080a47-7e37-4558-bee9-9ae18e690549:jetbrains.mps.lang.extension" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
-    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />
+    <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="6" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
     <language slang="l:3a13115c-633c-4c5c-bbcc-75c4219e9555:jetbrains.mps.lang.quotation" version="5" />
     <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="19" />