[llvm] [InstCombine] Do not use operand info in `replaceInInstruction` (PR #99492)

[via llvm-commits]

goldsteinn wrote:

> I think we already discovered this issue as part of @goldsteinn's attempt to support non-constants in div speculation, but never followed up on it. Oops.

Yes, probably my fault.
IIRC I submitted a patch that essentially did this, but in the same patch I also touched 100 or so files enabling more aggressive analysis and it got lost in review xD

https://github.com/llvm/llvm-project/pull/99492