[InstCombine] Transform `(icmp ult/uge (and X, Y), X)` -> `(icmp ne/eq (and X, Y), X)`

eq/ne are generally easier to reason about elsewhere.

ult -> ne: https://alive2.llvm.org/ce/z/5wxXGt
uge -> eq: https://alive2.llvm.org/ce/z/Dw6kqG

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D145425