Const Assignment Map Fusion: If two maps assign the same value for every element in a subset of the underlying array (and the subset is not dependent on the array in any way), then we can often fuse the two maps (not always possible)

Const Assignment Map Fusion: If two maps assign the same value for every element in a subset of the underlying array (and the subset is not dependent on the array in any way), then we can often fuse the two maps (not always possible) #683