Fix a dislexic regex.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179455 91177308-0d34-0410-b5e6-96231b3b80d8
Further generalize this scheduler test.

The order of copies depends on queue order, which is not very stable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179456 91177308-0d34-0410-b5e6-96231b3b80d8