[llvm] [PGO] Add ProfileInjector and ProfileVerifier passes (PR #147388)

[Mircea Trofin via llvm-commits]

mtrofin wrote:

### Merge activity

* **Jul 23, 7:33 PM UTC**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/147388).


https://github.com/llvm/llvm-project/pull/147388