Discussion: Change the specification of rotateL for non-finite Bits, or move rotations to FiniteBits

Problem: The documentation currently specifies that for non-finite Bits instances, rotate is the same as shift. This seems reasonable for Integer rotateR, but very strange for Integer rotateL. In particular: rotateL 5 (-1 :: Int) = -1 rotateL 5 (-1 :: Integer) = 16 Based on the concept that Integers represent two's complement out to infinity, rotating a negative integer left should fill with 1s, but it fills with 0s instead. Solutions: As stated in the subject, I think one reasonable solution is just to make rotateL fill with 1s for negative non-finite instances, and the other is to move rotations to FiniteBits, as was done with bitSize.