Run Coverage pass before other *San passes under new pass manager
Summary:
This fixes compiler-rt/test/msan/coverage-levels.cpp under the new pass manager (final check-msan test!).
Under the old pass manager, the coverage pass would run before the MSan pass. The opposite happened under the new pass manager. The MSan pass adds extra basic blocks, changing the number of coverage callbacks.
Reviewers: vitalybuka, leonardchan
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D79698