Some tests don't need to wait for the frame callback when a surface is
moved. This commit renames the move_client() helper function to
move_client_frame_sync() so that tests which need synchronisation must
explicitely request it. This allows to get 4 more tests using
repaint only on capture and to speed up runtime.
Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>