[clang] [Analysis] Avoid some warnings about exit from noreturn function (PR #144408)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

This is an interesting proposed change, thank you for working on it! Please be sure to add a release note to `clang/docs/ReleaseNotes.rst` about the functionality.

https://github.com/llvm/llvm-project/pull/144408