Reviewed-by: Erik Verbruggen

Still need to change it to use RefactoringChanges, and to do better definition
generation.

For answers to questions about where to insert a snippet/chunk of C++ code. Ok,
currently it will only find the One And Only place to insert method
declarations in classes, and it will need some tuning.

Now the method can be used to get the fully qualified name of
destructors, operator-ids and conversion-function-ids.

Revert "Revert "Try to fix the type rewriter.""

This reverts commit c9bc1e7c.

This reverts commit 33b19f02.

We need to add the fully qualified name to the case statements.

Reviewed-by: Roberto Raggi

Merge-request: 2167
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

Done-with: Erik Verbruggen

Done-with: Erik Verbruggen

Reviewed-by: Roberto Raggi

I hate this commit, but unfortunately, I don't have time right now
to finish the new template instantion algorithm so I have to
enable the old way of doing instantiations.