We were computing the visibility and linkage of template parameters, but
only using the linkage.

Use and test both, documenting that considering the visibility and linkage
of template parameters is a difference from gcc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158309 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed