Merge pull request #1397 from Krausus/GarbageCollectorWasGarbage

Garbage Collector Fixes/Tweaks/Cleanup/Documenting

code/modules/admin/admin_verbs.dm

@@ -142,8 +142,10 @@ var/list/admin_verbs_debug = list(
 	/client/proc/callproc,
 	/client/proc/callproc_datum,
 	/client/proc/toggledebuglogs,
-	/client/proc/qdel_toggle, // /vg/
+	/client/proc/qdel_toggle,
 	/client/proc/gc_dump_hdl,
+	/client/proc/gc_toggle_profiling,
+	/client/proc/gc_show_del_report,
 	/client/proc/debugNatureMapGenerator,
 	/client/proc/check_bomb_impacts,
 	/client/proc/test_movable_UI,

code/modules/admin/verbs/debug.dm

@@ -101,7 +101,7 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 	if(!lst)
 		return
 
-	if(!A || A.gc_destroyed)
+	if(!A || !isnull(A.gcDestroyed))
 		usr << "<span class='warning'>Error: callproc_datum(): owner of proc no longer exists.</span>"
 		return
 	if(!hascall(A,procname))