Mention source file name for JDT parsing exceptions

[zbynek]

If JDT fails to parse a file, the thrown exception can be very cryptic. This at least adds the name of the source unit to the thrown exception.

[niloc132]

Do you have an example stack trace that can cause this situation today?

[zbynek]

[ERROR] Unexpected internal compiler error
java.lang.ArrayIndexOutOfBoundsException: Index 922 out of bounds for length 870
        at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13147)
        at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13404)
        at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:13361)
        at com.google.gwt.dev.javac.JdtCompiler$ParserImpl.parse(JdtCompiler.java:204)
        at org.eclipse.jdt.internal.compiler.parser.Parser.dietParse(Parser.java:11747)
        at org.eclipse.jdt.internal.compiler.Compiler.internalBeginToCompile(Compiler.java:851)
        at org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:394)
        at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:444)
        at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:426)
        at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:1021)
        at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater.compile(CompilationStateBuilder.java:322)
        at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:532)
        at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:464)
        at com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:426)
        at com.google.gwt.dev.Precompile.precompile(Precompile.java:210)
        at com.google.gwt.dev.Precompile.precompile(Precompile.java:190)
        at com.google.gwt.dev.Precompile.precompile(Precompile.java:131)
        at com.google.gwt.dev.Compiler.compile(Compiler.java:192)
        at com.google.gwt.dev.Compiler.compile(Compiler.java:143)
        at com.google.gwt.dev.Compiler.compile(Compiler.java:132)
        at com.google.gwt.dev.Compiler$1.run(Compiler.java:110)
        at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)
        at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)
        at com.google.gwt.dev.Compiler.main(Compiler.java:113)

observed when all transitive dpendencies of gwt-dev are added to GWT classpath, I assume that's because it makes JDT 3.19 take over (#10082 (review))