Handle TemplateTemplateParmDecls and stripping of their default args.
Handle TemplateTemplateParmDecls and stripping of their default args.

perovic/cling,perovic/cling,root-mirror/cling,marsupial/cling,marsupial/cling,root-mirror/cling,root-mirror/cling,marsupial/cling,marsupial/cling,root-mirror/cling,marsupial/cling,karies/cling,marsupial/cling,perovic/cling,karies/cling,root-mirror/cling,root-mirror/cling,perovic/cling,perovic/cling,karies/cling,karies/cling,karies/cling,karies/cling