manager tests to use them and be significantly more comprehensive.
This, naturally, uncovered a bug where the CGSCC pass manager wasn't
printing analyses when they were run.
The only remaining core manipulator is I think an invalidate pass
similar to the require pass. That'll be next. =]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225240 91177308-0d34-0410-b5e6-96231b3b80d8