feat: tweak workflow for reference tests

This tweaks the workflow for the reference tests in an effort to prevent
failures due to OOM on the CI machine.

.github/workflows/reference-blockchain-tests.yml

@@ -46,7 +46,6 @@ jobs:
         run:  ./gradlew :reference-tests:generateBlockchainReferenceTests -Dorg.gradle.parallel=true -Dorg.gradle.caching=true
         env:
           JAVA_OPTS: -Dorg.gradle.daemon=false
-          CORSET_FLAGS: fields,expand,expand,expand
 
       - name: Download artifact
         uses: dawidd6/action-download-artifact@v6
@@ -66,10 +65,10 @@ jobs:
         run: ./gradlew referenceBlockchainTests -x spotlessCheck
         timeout-minutes: 180
         env:
-          REFERENCE_TESTS_PARALLELISM: 7
+          REFERENCE_TESTS_PARALLELISM: 1
           JAVA_OPTS: -Dorg.gradle.daemon=false
           CORSET_FLAGS: disable
-          GOCORSET_FLAGS: -wd --ansi-escapes=false --report --air
+          GOCORSET_FLAGS: -wd --ansi-escapes=false --report --hir
           FAILED_TEST_JSON_DIRECTORY: ${{ github.workspace }}/tmp/${{ steps.extract_branch.outputs.branch }}/
           FAILED_MODULE: ${{ inputs.failed_module || '' }}
           FAILED_CONSTRAINT: ${{ inputs.failed_constraint || '' }}

reference-tests/build.gradle

@@ -61,8 +61,8 @@ tasks.register('referenceBlockchainTests', Test) {
 
   boolean isCiServer = System.getenv().containsKey("CI")
   minHeapSize = isCiServer ? "8g" :"4g"
-  maxHeapSize = isCiServer ? "50g" : "8g"
-
+  maxHeapSize = isCiServer ? "64g" : "8g"
+  print "Setting maxHeapSize = ${maxHeapSize}"
   useJUnitPlatform {
     includeTags("BlockchainReferenceTest")
   }