[llvm] [IR] Add support for `samesign` in `Operator::hasPoisonGeneratingFlags` (PR #112358)

[via llvm-commits]

elhewaty wrote:

Oh, thank you very much for this.
Can you add a test for `ne` too? As the flag should be dropped there too. 

https://github.com/llvm/llvm-project/pull/112358