[clang] [Clang] Add wraps attribute (for granular integer overflow handling) (PR #86618)

[Justin Stitt via cfe-commits]

JustinStitt wrote:

Hi, I've made some changes and am looking for some more review on this PR:

* This attribute no longer supports C++ as there are other solutions for that language [1] that allow for the same fine-grained wrapping control without changing syntax patterns.
* Add bypass for implicit-(un)signed-integer-truncation sanitizers
* Rebased onto eec41d2f8d81b546d7b97648cca6b2d656104bd3

[1]: https://godbolt.org/z/7qPve6cWq (simple example)

https://github.com/llvm/llvm-project/pull/86618