DrJava Legacy SVN Repository

Now prints out the error:
Static Error: Class '$1' cannot access its superinterface 'UnaryFun'. Make sure 'UnaryFun' is a public interface.

I think this is as good as it can get since we can't load classes that aren't accessible as per 5.4.4.

Note: I put JavaInterpreterTest back, but there are two test cases
that fail, so I commented them out. The bug
2974931: Boolean Short-Circuiting Doesn't Work needs to be addressed.