Backward 512 compatibility removal.

code/game/objects/structures/morgue.dm

@@ -333,7 +333,7 @@ GLOBAL_LIST_EMPTY(crematoriums)
 		to_chat(user, "<span class='warning'>That's not connected to anything!</span>")
 
 /obj/structure/tray/MouseDrop_T(atom/movable/O as mob|obj, mob/user)
-	if(!ismovableatom(O) || O.anchored || !Adjacent(user) || !user.Adjacent(O) || O.loc == user)
+	if(!ismovable(O) || O.anchored || !Adjacent(user) || !user.Adjacent(O) || O.loc == user)
 		return
 	if(!ismob(O))
 		if(!istype(O, /obj/structure/closet/body_bag))
@@ -375,6 +375,6 @@ GLOBAL_LIST_EMPTY(crematoriums)
 
 /obj/structure/tray/m_tray/CanAStarPass(ID, dir, caller)
 	. = !density
-	if(ismovableatom(caller))
+	if(ismovable(caller))
 		var/atom/movable/mover = caller
 		. = . || (mover.pass_flags & PASSTABLE)