[InstSimplify] Generalize simplification of icmps with monotonic operands (#69471) InstSimplify currently folds patterns like `(x | y) uge x` and `(x & y) ule x` to true. However, it cannot handle combinations of such situations, such as `(x | y) uge (x & z)` etc. To support this, recursively collect operands of monotonic instructions (that preserve either a greater-or-equal or less-or-equal relationship) and then check whether any of them match. Fixes https://github.com/llvm/llvm-project/issues/69333.
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