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

[Jon Roelofs via llvm-branch-commits]

jroelofs wrote:

>  We could delete bytes from valid files to trigger the errors and commit them as binary blobs.

Committing more binary blobs is not a great idea given the `xz` debacle. It would be better to have them set up as tests that serialize something from yaml to bitstream, and then corrupt some bytes and check that the error triggers.

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