[clang] Effect analysis: correctly detect `(x ? a : b)` as nonblocking when a and b are (PR #111224)

[via cfe-commits]

Sirraide wrote:

@dougsonos Maybe you should ask for commit access since you’ll likely be contributing more patches to this in the future as I understand it?

CC @AaronBallman Does that still work like it used to or did your maintainers rfc change something about that too?

https://github.com/llvm/llvm-project/pull/111224