Add lints for "new" override prevention feature (#49672)

* Add lints for "new" override prevention feature

* bEsPoKe

* i'm an idiot

* arg index

code/modules/events/_event.dm

@@ -166,6 +166,7 @@
 //Do not override this proc, instead use the appropiate procs.
 //This proc will handle the calls to the appropiate procs.
 /datum/round_event/process()
+	SHOULD_NOT_OVERRIDE(TRUE)
 	if(!processing)
 		return
 

code/modules/projectiles/guns/energy/special.dm

@@ -133,14 +133,13 @@
 	usesound = list('sound/items/welder.ogg', 'sound/items/welder2.ogg')
 	tool_behaviour = TOOL_WELDER
 	toolspeed = 0.7 //plasmacutters can be used as welders, and are faster than standard welders
-	var/progress_flash_divisor = 10  //copypasta is best pasta
-	var/light_intensity = 1
 	var/charge_weld = 25 //amount of charge used up to start action (multiplied by amount) and per progress_flash_divisor ticks of welding
 
 /obj/item/gun/energy/plasmacutter/ComponentInitialize()
 	. = ..()
 	AddComponent(/datum/component/butchering, 25, 105, 0, 'sound/weapons/plasma_cutter.ogg')
 	AddElement(/datum/element/update_icon_blocker)
+	AddElement(/datum/element/tool_flash, 1)
 
 /obj/item/gun/energy/plasmacutter/examine(mob/user)
 	. = ..()
@@ -163,13 +162,6 @@
 	else
 		..()
 
-// Tool procs, in case plasma cutter is used as welder
-// Can we start welding?
-/obj/item/gun/energy/plasmacutter/tool_start_check(mob/living/user, amount)
-	. = tool_use_check(user, amount)
-	if(. && user)
-		user.flash_act(light_intensity)
-
 // Can we weld? Plasma cutter does not use charge continuously.
 // Amount cannot be defaulted to 1: most of the code specifies 0 in the call.
 /obj/item/gun/energy/plasmacutter/tool_use_check(mob/living/user, amount)
@@ -188,17 +180,6 @@
 /obj/item/gun/energy/plasmacutter/use(amount)
 	return (!QDELETED(cell) && cell.use(amount ? amount * charge_weld : charge_weld))
 
-// This only gets called by use_tool(delay > 0)
-// It's also supposed to not get overridden in the first place.
-/obj/item/gun/energy/plasmacutter/tool_check_callback(mob/living/user, amount, datum/callback/extra_checks)
-	. = ..() //return tool_use_check(user, amount) && (!extra_checks || extra_checks.Invoke())
-	if(. && user)
-		if (progress_flash_divisor == 0)
-			user.flash_act(min(light_intensity,1))
-			progress_flash_divisor = initial(progress_flash_divisor)
-		else
-			progress_flash_divisor--
-
 /obj/item/gun/energy/plasmacutter/use_tool(atom/target, mob/living/user, delay, amount=1, volume=0, datum/callback/extra_checks)
 	if(amount)
 		. = ..()

code/modules/research/nanites/nanite_programs.dm

@@ -48,7 +48,7 @@
 
 	//Extra settings
 	///Don't ever override this or I will come to your house and stand menacingly behind a bush
-	var/list/extra_settings = list()
+	VAR_FINAL/list/extra_settings = list()
 
 	//Rules
 	//Rules that automatically manage if the program's active without requiring separate sensor programs