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

[Justin Stitt via cfe-commits]

JustinStitt wrote:

FYI: I've rebased and handled merge conflicts (mainly in ReleaseNotes.rst). This, of course, required a force push.

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