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

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

> I'll squash all commits once the review is finalized.

The PR will get squashed on commit - no need to do this manually

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