[coroutines] Define getPassName() for coroutine passes

Reviewers: GorNishanov

Reviewed By: GorNishanov

Subscribers: EricWF, llvm-commits

Differential Revision: https://reviews.llvm.org/D33622

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304065 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed