List of potential duplicate files after rascal-core integration

[PaulKlint]

After merging rascal and rascal-core we have already eliminated most duplicate files. This issue documents the remaining, potential, duplicates, handle with great care:

• [x] JavaCompilerException.java: [likely merge] - org.rascalmpl.interpreter.utils.JavaCompilerException.java - org.rascalmpl.runtime.utils.JavaCompilerException.java [REMOVED]
• [ ] Fingerprint.java: [very delicate, but consider eliminating duplication] - org.rascalmpl.runtime.Fingerprint.java - org.rascalmpl.library.lang.rascal.matching.internal.Fingerprint.java - IValue.getFingerprint()
• [ ] Fingerprint.rsc: [very delicate, but consider eliminating duplication] - lang::rascal::matching::Fingerprint - lang::rascalcore::check::Fingerprint
• [x] JavaCompiler.java: - org.rascalmpl.runtime.utils.JavaCompiler.java [REMOVED] - org.rascalmpl.interpreter.utils.JavaCompiler.java
• [x] ConcreteSyntax.rsc [Keep both: similar functionality in the Symbol respectively AType world] - lang::rascal::grammar::ConcreteSyntax - lang::rascalcore::compile::Rascal2muRascal::ConcreteSyntax
• [x] RascalFunctionActionExecutor.java: [Keep both: due to different function call mechanism in compiled code] - org.rascalmpl.runtime.RascalFunctionActionExecutor.java - org.rascalmpl.parser.uptr.action.RascalFunctionActionExecutor.java
• [x] SubSetGenerator.java: [completely different implementations, keep both, for now] - org.rascalmpl.runtime.utils.SubSetGenerator.java - org.rascalmpl.interpreter.matching.SubSetGenerator.java