[MIRROR] Move death(), gib(), and dust() from /mob to /mob/living (#1634)

* Move death(), gib(), and dust() from /mob to /mob/living

* a

Co-authored-by: Jared-Fogle <35135081+Jared-Fogle@users.noreply.github.com>
Co-authored-by: Azarak <azarak10@gmail.com>

code/modules/research/destructive_analyzer.dm

@@ -63,8 +63,8 @@ Note: Must be placed within 3 tiles of the R&D Console
 		var/list/food = thing.GetDeconstructableContents()
 		for(var/obj/item/innerthing in food)
 			destroy_item(innerthing, TRUE)
-	for(var/mob/M in thing)
-		M.death()
+	for(var/mob/living/victim in thing)
+		victim.death()
 
 	qdel(thing)
 	loaded_item = null

code/modules/research/xenobiology/xenobiology.dm

@@ -765,7 +765,7 @@
 	var/prompted = 0
 	var/animal_type = SENTIENCE_ORGANIC
 
-/obj/item/slimepotion/transference/afterattack(mob/living/M, mob/user, proximity)
+/obj/item/slimepotion/transference/afterattack(mob/living/M, mob/living/user, proximity)
 	if(!proximity)
 		return
 	if(prompted || !ismob(M))