[llvm] [DFAJT][profcheck] Propagate `select` -> `br` profile metadata (PR #162213)

[Mircea Trofin via llvm-commits]

mtrofin wrote:

### Merge activity

* **Oct 7, 4:26 PM UTC**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/162213).


https://github.com/llvm/llvm-project/pull/162213