Port set_stat and COMSIG_MOB_STATCHANGE from TG

code/modules/mob/living/silicon/ai/ai.dm

@@ -413,7 +413,7 @@
 	else
 		the_mmi.forceMove(get_turf(src))
 	if(the_mmi.brainmob.stat == DEAD && !suiciding)
-		the_mmi.brainmob.stat = CONSCIOUS
+		the_mmi.brainmob.set_stat(CONSCIOUS)
 	if(mind)
 		mind.transfer_to(the_mmi.brainmob)
 	the_mmi.update_appearance()

code/modules/mob/living/silicon/ai/life.dm

@@ -79,7 +79,7 @@
 			death()
 			return
 		else if(stat == UNCONSCIOUS)
-			stat = CONSCIOUS
+			set_stat(CONSCIOUS)
 			adjust_blindness(-1)
 	diag_hud_set_status()
 

code/modules/mob/living/silicon/pai/death.dm

@@ -1,7 +1,7 @@
 /mob/living/silicon/pai/death(gibbed)
 	if(stat == DEAD)
 		return
-	stat = DEAD
+	set_stat(DEAD)
 	update_mobility()
 	update_sight()
 	wipe_fullscreens()

code/modules/mob/living/silicon/robot/robot.dm

@@ -106,7 +106,7 @@
 			mmi.forceMove(T)
 		if(mmi.brainmob)
 			if(mmi.brainmob.stat == DEAD)
-				mmi.brainmob.stat = CONSCIOUS
+				mmi.brainmob.set_stat(CONSCIOUS)
 				mmi.brainmob.remove_from_dead_mob_list()
 				mmi.brainmob.add_to_alive_mob_list()
 			mind.transfer_to(mmi.brainmob)
@@ -922,9 +922,9 @@
 			toggle_headlamp(1)
 			return
 		if(IsUnconscious() || IsStun() || IsKnockdown() || IsParalyzed() || getOxyLoss() > maxHealth * 0.5)
-			stat = UNCONSCIOUS
+			set_stat(UNCONSCIOUS)
 		else
-			stat = CONSCIOUS
+			set_stat(CONSCIOUS)
 		update_mobility()
 	diag_hud_set_status()
 	diag_hud_set_health()