[clang] [compiler-rt] [Clang][compiler-rt][UBSan] Improve `__ubsan_handle_invalid_builtin` (PR #109088)

[Vitaly Buka via llvm-commits]

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

Sorry, I realized the my request does not make much sense.

Still PR contain message improvement and a bug fix.

LGTM.

https://github.com/llvm/llvm-project/pull/109088