Revert "Revert "Revert "Revert "Fix LLVMgold plugin name/path for non-Linux.""""

With tests fixed for Windows style paths now that they are going
through path canonicalization.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311487 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed