regenerated file with Xtend annotation

follow-up of eclipse-xtext#2784

org.eclipse.xtend.core/xtend-gen/org/eclipse/xtend/core/macro/declaration/JvmExecutableDeclarationImpl.java

@@ -125,19 +125,7 @@ public void setBody(final StringConcatenationClient compilationTemplate) {
   }
 
   public MutableParameterDeclaration addParameter(final String name, final TypeReference type) {
-    this.checkMutable();
-    ConditionUtils.checkJavaIdentifier(name, "name");
-    Preconditions.checkArgument((type != null), "type cannot be null");
-    boolean _isInferred = type.isInferred();
-    if (_isInferred) {
-      throw new IllegalArgumentException("Cannot use inferred type as parameter type.");
-    }
-    final JvmFormalParameter param = TypesFactory.eINSTANCE.createJvmFormalParameter();
-    param.setName(name);
-    param.setParameterType(this.getCompilationUnit().toJvmTypeReference(type));
-    this.getDelegate().getParameters().add(param);
-    ParameterDeclaration _parameterDeclaration = this.getCompilationUnit().toParameterDeclaration(param);
-    return ((MutableParameterDeclaration) _parameterDeclaration);
+    return this.addParameter(this.getDelegate().getParameters().size(), name, type);
   }
 
   public MutableParameterDeclaration addParameter(final int index, final String name, final TypeReference type) {