[llvm] [LoopInterchange] Remove 'S' Scalar Dependencies (PR #119345)

[Ryotaro Kasuga via llvm-commits]

https://github.com/kasuga-fj commented:

The implementation looks good to me. but some tests do not appear to have achieved their original objectives. I'm not sure what we should do in such cases, but in my opinion a mechanical update does not make sense. Marking `XFAIL` may be one option.

https://github.com/llvm/llvm-project/pull/119345