Places win just as if being placed by fvwm2's RandomPlacement. This placement is not truly random; it is based on two state variables which are incremented for the x and y coordinates, and which wrap around once a window would be forced off the screen. The placement is fairly arbitrary, but always succeeds, and so avoids user interaction. #t is always returned. If no-move is #t, then just return the new position but do not move win. x-sugg and y-sugg are ignored.