[llvm] [ConstantRange] Bail out early in unsignedMulMayOverflow for wide integer types (PR #192275)

[via llvm-commits]

Firebear518 wrote:

To be honest, I consulted Claude for the previous iteration, and it ended up making far too many unnecessary changes which I committed prematurely. I sincerely apologize for the noise and for wasting your valuable time. I have now taken the time to thoroughly review everything myself. Please feel free to continue providing feedback as you have been—I truly appreciate your guidance.

https://github.com/llvm/llvm-project/pull/192275