[PM] Refactor this unittest a bit to remove duplicated code. This was
suggested at one point during code review and I deferred it to
a follow-up commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282383 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed