[new-parser] PackageDescr.resource not set

[yurloc]

Parent issue

• Experiment: New DRL parser #5678

Failing tests

• org.drools.mvel.compiler.compiler.DescrResourceSetTest#drlFilesTest

Notes

DRLVisitorImpl should simply set the Resource that was parsed to each Descr in the resulting AST.

Rule code snippet

N/A.

Error output

### parse : ANTLR4_PARSER_ENABLED = true

java.lang.AssertionError: [PackageDescr.resource is null!] 
Expecting actual not to be null

	at org.drools.mvel.compiler.compiler.PackageDescrResourceVisitor.checkResource(PackageDescrResourceVisitor.java:76)
	at org.drools.mvel.compiler.compiler.PackageDescrResourceVisitor.visit(PackageDescrResourceVisitor.java:315)
	at org.drools.mvel.compiler.compiler.DescrResourceSetTest.drlFilesTest(DescrResourceSetTest.java:63)

[yurloc]

good-first-issue

[tkobayas]

/take This seems to be a little more complex than the first look.

[tkobayas]

DescrResourceSetTest goes through all drl files in test-compiler-integration. If there is a parser error, the resource assertion is skipped. So it's better to hold on this fix until some other test failures will be fixed.

[tkobayas]

Fixed by #5984