[llvm] [VectorCombine] Fold chain of (scalar load)->ext->ext to load->ext. (PR #141109)

[Simon Pilgrim via llvm-commits]

https://github.com/RKSimon commented:

No objections, my only thought is why its in VectorCombine and not InstCombine if it isn't cost/target driven?

https://github.com/llvm/llvm-project/pull/141109