Don't hardcode the order of the aliases.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192601 91177308-0d34-0410-b5e6-96231b3b80d8
Also don't hardcode the order on this test.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192603 91177308-0d34-0410-b5e6-96231b3b80d8