Normalizes how some lighting things GC

code/controllers/subsystem/lighting.dm

@@ -36,9 +36,9 @@ SUBSYSTEM_DEF(lighting)
 	for (i in 1 to GLOB.lighting_update_lights.len)
 		var/datum/light_source/L = GLOB.lighting_update_lights[i]
 
-		if (L.check() || L.destroyed || L.force_update)
+		if (L.check() || QDELETED(L) || L.force_update)
 			L.remove_lum()
-			if (!L.destroyed)
+			if (!QDELETED(L))
 				L.apply_lum()
 
 		else if (L.vis_update) //We smartly update only tiles that became (in) visible to use.

code/game/atoms.dm

@@ -95,6 +95,8 @@
 	LAZYCLEARLIST(priority_overlays)
 	//SSoverlays.processing -= src	//we COULD do this, but it's better to just let it fall out of the processing queue
 
+	QDEL_NULL(light)
+
 	return ..()
 
 /atom/proc/CanPass(atom/movable/mover, turf/target, height=1.5)

code/modules/lighting/lighting_atom.dm

@@ -35,9 +35,7 @@
 		return
 
 	if (!light_power || !light_range) // We won't emit light anyways, destroy the light source.
-		if(light)
-			light.destroy()
-			light = null
+		QDEL_NULL(light)
 	else
 		if (!istype(loc, /atom/movable)) // We choose what atom should be the top atom of the light here.
 			. = src
@@ -49,13 +47,6 @@
 		else
 			light = new/datum/light_source(src, .)
 
-// Destroy our light source so we GC correctly.
-/atom/Destroy()
-	if (light)
-		light.destroy()
-		light = null
-	. = ..()
-
 // If we have opacity, make sure to tell (potentially) affected light sources.
 /atom/movable/Destroy()
 	var/turf/T = loc

code/modules/lighting/lighting_corner.dm

@@ -137,5 +137,5 @@ GLOBAL_LIST_INIT(LIGHTING_CORNER_DIAGONAL, list(NORTHEAST, SOUTHEAST, SOUTHWEST,
 		return QDEL_HINT_LETMELIVE
 
 	stack_trace("Ok, Look, TG, I need you to find whatever fucker decided to call qdel on a fucking lighting corner, then tell him very nicely and politely that he is 100% retarded and needs his head checked. Thanks. Send them my regards by the way.")
-	// Yeah fuck you anyways.
-	return QDEL_HINT_LETMELIVE
+	
+	return ..()

code/modules/lighting/lighting_source.dm

@@ -28,7 +28,6 @@
 
 	var/vis_update      // Whether we should smartly recalculate visibility. and then only update tiles that became (in)visible to us.
 	var/needs_update    // Whether we are queued for an update.
-	var/destroyed       // Whether we are destroyed and need to stop emitting light.
 	var/force_update
 
 /datum/light_source/New(var/atom/owner, var/atom/top)
@@ -60,19 +59,15 @@
 
 	return ..()
 
-// Kill ourselves.
-/datum/light_source/proc/destroy()
-	destroyed = TRUE
+/datum/light_source/Destroy(force)
 	force_update()
 	if (source_atom)
 		source_atom.light_sources -= src
 
 	if (top_atom)
 		top_atom.light_sources    -= src
-
-// Fuck supporting force.
-/datum/light_source/Destroy(var/force)
-	destroy()
+	. = ..()
+	if(!force)
 		return QDEL_HINT_IWILLGC
 
 // Yes this doesn't align correctly on anything other than 4 width tabs.
@@ -114,7 +109,7 @@
 // Will check if we actually need to update, and update any variables that may need to be updated.
 /datum/light_source/proc/check()
 	if (!source_atom || !light_range || !light_power)
-		destroy()
+		qdel(src)
 		return 1
 
 	if (!top_atom)