[llvm] [SeparateConstOffsetFromGEP] Don't set unsound inbounds flag (PR #130616)

[Fabian Ritter via llvm-commits]

ritter-x2a wrote:

Here is an alive2 counter example for the transformation as it was before this PR is applied, on the test in preserve-inbounds.ll: https://alive2.llvm.org/ce/z/2unNTZ

https://github.com/llvm/llvm-project/pull/130616