More tests for DR1.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@205339 91177308-0d34-0410-b5e6-96231b3b80d8
Fix self-referential comment.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@205340 91177308-0d34-0410-b5e6-96231b3b80d8