Improve the representation of template type parameters. We now
canonicalize by template parameter depth, index, and name, and the
unnamed version of a template parameter serves as the canonical.

TemplateTypeParmDecl no longer needs to inherit from
TemplateParmPosition, since depth and index information is present
within the type.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63899 91177308-0d34-0410-b5e6-96231b3b80d8
9 files changed