Use the new statement/expression profiling code to unique dependent

Use the new statement/expression profiling code to unique dependent
template arguments, as in template specialization types. This permits
matching out-of-line definitions of members for class templates that
involve non-type template parameters.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77462 91177308-0d34-0410-b5e6-96231b3b80d8