[clang] [compiler-rt] Fix "[clang][UBSan] Add implicit conversion check for bitfields" (PR #87761)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

This is fixed version of https://github.com/llvm/llvm-project/pull/75481 ?

https://github.com/llvm/llvm-project/pull/87761