Fix lookup of class references in checkType() / checkDescriptor to also inspect superclasses and interfaces

[GoogleCodeExporter]

When adding support for Java 8 and invokeDynamic, there was still a TODO about 
checking supertypes and interfaces when looking at stuff like casts, array 
creation, annotation checks.

This should be fixed, to use the same semantics like for method calls.

Original issue reported on code.google.com by uwe.h.schindler on 16 Apr 2014 at 1:47