0.8.19.15:

0.8.19.15:
	Maybe speed up PCL a tiny bit more
	... make the slot positioning a little less confusing, so that
		the 'same' slot tends to be in the same location;
	... this should help the clever DFUN mechanism to keep neat ones
		like ONE-INDEX around;
	... (also this puts slots in objects in the 'expected' order --
		frob sb-aclrepl's dealing with the unexpected