Reintroduce r67870 (rval ref overloading), since I can't reproduce any test failures on i386 or x86_64. If this fails for someone, please contact me.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67999 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed