[llvm] [InstCombine] Fold patterns which uses <2N x iM> type for comparisons on <N x i2M> vector types (PR #184328)

[Fuad Ismail via llvm-commits]

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fuad1502 wrote:

Updated in https://github.com/llvm/llvm-project/pull/184328/commits/42e95371b902cf44b6f8a88b9762acdd536f170c 👍 

I also used more descriptive function names instead of vague identifiers.

https://github.com/llvm/llvm-project/pull/184328