Recommit "[DAGCombiner] Transform `(icmp eq/ne (and X,C0),(shift X,C1))` to...

Recommit "[DAGCombiner] Transform `(icmp eq/ne (and X,C0),(shift X,C1))` to use rotate or to getter constants." (2nd Try)

Added missing check that the mask and shift amount added up to correct
bitwidth as well as test cases for the bug.

Closes #71729