[clang] [compiler-rt] [ubsan] Display correct runtime messages for negative _BitInt (PR #96240)

[Paul Kirth via cfe-commits]

ilovepi wrote:

Unfortunately, I don't think we have a way to run a patch on post-submit bots before it lands. I think everyone has been frustrated by that limitation at one time or another. I usually ask the reporters/bot owners if its possible. If they're able to help, most contributors are more than willing to help you test a patch. 

https://github.com/llvm/llvm-project/pull/96240