Cross-file j2d/refs

[chrismwendt]

(no intention to merge)

This is my attempt to see if cross-file j2d/refs would work by using SymbolSolverCollectionStrategy as shown in https://javaparser.org/setting-up-for-analysing-a-whole-project/

It currently doesn't work, and I seem to have hit a roadblock. Take for example this call to postIndex:

https://github.com/sourcegraph/lsif-java/blob/4cf52ba51fb1439afbb61e393c4e4cfafc3cd378/src/main/java/ProjectIndexer.java#L57

When I print out the value of System.out.println(n.resolve());, where n is a MethodCallExpr for postIndex, I get:

ReflectionMethodDeclaration{method=public void DocumentIndexer.postIndex()}

instead of a JavaParserMethodDeclaration. This is problematic because:

getWrappedNode is present only on the subclasses of the Resolved* declarations that derive from JP AST nodes (such as JavaParserClassDeclaration).

From https://static.javadoc.io/com.github.javaparser/javaparser-core/3.13.2/com/github/javaparser/resolution/declarations/AssociableToAST.html#toAst--

ReflectionMethodDeclaration cannot be cast to JavaParserMethodDeclaration. That means I can't call getWrappedNode on it.

I did a bunch of GitHub code searches for other uses of SymbolSolverCollectionStrategy, getWrappedNode, etc. and haven't found any workaround. It seems that Reflection* classes come from jars:

https://github.com/opensathishrtskumar/StaticAnalyzer/blob/cd889d4b9fd631ba13dccce1fce340005ea76e86/src/com/analyzer/visitor/GeneralVisitor.java#L75-L82

[chrismwendt]

Subsumed by #2