[llvm-branch-commits] [Remarks] BitstreamRemarkParser: Refactor error handling (PR #156511)

[Jon Roelofs via llvm-branch-commits]

https://github.com/jroelofs approved this pull request.

LGTM with some nits. Tests would be good, but I don't think we should block this on improving things there.

https://github.com/llvm/llvm-project/pull/156511