[clang] [clang][X86] Always emit trap for noreturn functions with -fms-kernel (PR #196550)

[Eli Friedman via cfe-commits]

https://github.com/efriedma-quic commented:

Similar to the pointer subtraction patch, I'd prefer to have an explicit command-line flag, and have ms-kernel turn it on by default.

https://github.com/llvm/llvm-project/pull/196550