Drop 8.2 from Stack CI and fix doctest in Haskell CI

.github/workflows/haskell-ci.yml

@@ -256,11 +256,13 @@ jobs:
         run: |
           $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
       - name: install doctest
+        if: env.HEADHACKAGE != 'true'
         run: |
-          $CABAL v2-install $ARG_COMPILER doctest --overwrite-policy=always
+          $CABAL v2-install --ignore-project $ARG_COMPILER doctest --ghc-options=-rtsopts --overwrite-policy=always
       - name: doctests
+        if: env.HEADHACKAGE != 'true'
         run: |
-          $CABAL v2-repl BNFC --with-ghc-pkg=$HCPKG -w doctest --repl-options=-fno-warn-type-defaults
+          $CABAL v2-repl BNFC --with-ghc-pkg=$HCPKG -w doctest --repl-options=-w
       - name: tests
         run: |
           $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct

.github/workflows/stack.yml

@@ -23,7 +23,8 @@ jobs:
       fail-fast: false
       matrix:
         # Note: check release logic below when changing the matrix!
-        ghc: ['9.10', '9.8', '9.6', '9.4', '9.2', '9.0', '8.10', '8.8', '8.6', '8.4', '8.2']
+        # Stack 3.1.1 only supports GHC 8.4 and up.
+        ghc: ['9.10', '9.8', '9.6', '9.4', '9.2', '9.0', '8.10', '8.8', '8.6', '8.4']
         os: [ubuntu-latest]
         include:
           - os: macOS-latest

source/BNFC.cabal

@@ -65,7 +65,6 @@ extra-source-files:
   stack-8.8.yaml
   stack-8.6.yaml
   stack-8.4.yaml
-  stack-8.2.yaml
 
 source-repository head
   type:     git