[llvm] [VectorCombine] foldShuffleToIdentity - peek through bitcasts to see if they come from the same value to form identity sequence (PR #98334)

[Alexey Bataev via llvm-commits]

https://github.com/alexey-bataev approved this pull request.

LG

https://github.com/llvm/llvm-project/pull/98334