migration/vmstate: Introduce VMSTATE_WITH_TMP_TEST() and VMSTATE_BITMAP_TEST() We'll make use of both next in the context of virtio-mem. Reviewed-by: Dr. David Alan Gilbert <[email protected]> Reviewed-by: Peter Xu <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Reviewed-by: Juan Quintela <[email protected]>S Signed-off-by: David Hildenbrand <[email protected]> Signed-off-by: Juan Quintela <[email protected]>