Update radiation system for the new garbage collector.

code/controllers/Processes/radiation.dm

@@ -15,10 +15,10 @@
 /datum/controller/process/radiation/proc/sources_decay()
 	var/list/sources = linked.sources
 	for(var/thing in sources)
-		if(deleted(thing))
-			sources.Remove(thing)
-			continue
 		var/datum/radiation_source/S = thing
+		if(QDELETED(S))
+			sources.Remove(S)
+			continue
 		if(S.decay)
 			S.update_rad_power(S.rad_power - config.radiation_decay_rate)
 		if(S.rad_power <= config.radiation_lower_limit)
@@ -29,22 +29,22 @@
 /datum/controller/process/radiation/proc/cache_expires()
 	var/list/resistance_cache = linked.resistance_cache
 	for(var/thing in resistance_cache)
-		if(deleted(thing))
-			resistance_cache.Remove(thing)
-			continue
 		var/turf/T = thing
+		if(QDELETED(T))
+			resistance_cache.Remove(T)
+			continue
 		if((length(T.contents) + 1) != resistance_cache[T])
 			resistance_cache.Remove(T) // If its stale REMOVE it! It will get added if its needed.
 		SCHECK
 
-	// Step 3 - Registered irradiatable things are checked for radiation
+// Step 3 - Registered irradiatable things are checked for radiation
 /datum/controller/process/radiation/proc/irradiate_targets()
 	var/list/registered_listeners = living_mob_list // For now just use this. Nothing else is interested anyway.
 	if(length(linked.sources) > 0)
 		for(var/thing in registered_listeners)
-			if(deleted(thing))
-				continue
 			var/atom/A = thing
+			if(QDELETED(A))
+				continue
 			var/turf/T = get_turf(thing)
 			var/rads = linked.get_rads_at_turf(T)
 			if(rads)