* Use clangIndex to identify declarations across translation units.
* Added new Find*ByUSR methods and removed unused Find*(IntPtr) methods.
* Added Depth/Index and IsParameterPack fields to TemplateParameterType.
* Fixed member initialization issues in C++ Method class.
* Added AST tests for function and class templates.
* All tests pass with new and old parser.
* Implemented missing parts in regards to class templates.
* Fixed couple of class member initialization issues in C++ AST classes.
* Make code more look alike so it's easier to compare them.
* All tests pass now with old and new parser. Especially the nasty STL one with the ostream typedef.