GC cleanup (#8211)

code/controllers/subsystems/mobs.dm

@@ -99,3 +99,10 @@ SUBSYSTEM_DEF(mobs)
 /datum/controller/subsystem/mobs/critfail()
 	..()
 	log_recent()
+
+//CHOMPEdit Begin
+//Mobs need to immediately removed from the SS list on Destroy
+/mob/Destroy()
+	. = ..()
+	SSmobs.currentrun -= src
+//CHOMPEdit End

code/controllers/subsystems/plants.dm

@@ -141,7 +141,8 @@ SUBSYSTEM_DEF(plants)
 			return
 
 /datum/controller/subsystem/plants/proc/add_plant(var/obj/effect/plant/plant)
-	processing |= plant
+	if(!QDELETED(plant)) //CHOMPEdit GC
+		processing |= plant //CHOMPEdit GC
 
 /datum/controller/subsystem/plants/proc/remove_plant(var/obj/effect/plant/plant)
 	processing -= plant

code/controllers/subsystems/radiation.dm

@@ -146,3 +146,10 @@ SUBSYSTEM_DEF(radiation)
 		return
 	var/turf/epicentre = locate(round(world.maxx / 2), round(world.maxy / 2), source.z)
 	flat_radiate(epicentre, power, world.maxx, respect_maint)
+
+//CHOMPEdit Begin
+//Putting this here so it can be promptly nuked if I ever redo the radiation subsystem
+/mob/living/Destroy()
+	. = ..()
+	SSradiation.listeners -= src
+//CHOMPEdit End