[llvm] [CVP] Propagate constant range on icmp at use level (PR #73767)

[via llvm-commits]

XChy wrote:

> This is duplicating the functionality of getPredicateAt() -- would it be better to introduce getPredicateAtUse()?

I think so. I would introduce it in LazyValueInfo later.

https://github.com/llvm/llvm-project/pull/73767