[clang] [Inliner] Improve attribute propagation to callsites when inlining. (PR #66036)

[via cfe-commits]

goldsteinn wrote:

> > Split some tests for c/cpp; NFC
> 
> Why was this necessary?

Different `noundef` properties for some of the intrinsics. Since there are multiple unique checks thought it was simpler to just split than add c/cxx version for each of the existing checks.

https://github.com/llvm/llvm-project/pull/66036