Changes all .len to length() where applicable (#25174)

* Globals work

* Double access works

* All other things

* Revert "All other things"

This reverts commit 6574442eb6.

* More changes that compile and work

* IT WORKS AAAAAA

* Changes even more .len to length()

* Apply suggestions from code review

* Update code/datums/mind.dm

* Update code/__HELPERS/sorts/InsertSort.dm

Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

* Update code/__HELPERS/sanitize_values.dm

Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

---------

Co-authored-by: FunnyMan3595 (Charlie Nolan) <funnyman@google.com>
Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

code/datums/spells/area_teleport.dm

@@ -49,7 +49,7 @@
 				if(clear)
 					L+=T
 
-		if(!L.len)
+		if(!length(L))
 			to_chat(usr, "The spell matrix was unable to locate a suitable teleport destination for an unknown reason. Sorry.")
 			return
 
@@ -62,7 +62,7 @@
 		var/list/tempL = L
 		var/attempt = null
 		var/success = 0
-		while(tempL.len)
+		while(length(tempL))
 			attempt = pick(tempL)
 			success = target.Move(attempt)
 			if(!success)

code/datums/spells/charge.dm

@@ -20,7 +20,7 @@
 
 		if(L.pulling && (isliving(L.pulling)))
 			var/mob/living/M =	L.pulling
-			if(M.mob_spell_list.len != 0 || (M.mind && M.mind.spell_list.len != 0))
+			if(length(M.mob_spell_list) != 0 || (M.mind && length(M.mind.spell_list) != 0))
 				for(var/datum/spell/S in M.mob_spell_list)
 					S.cooldown_handler.revert_cast()
 				if(M.mind)

code/datums/spells/conjure.dm

@@ -30,7 +30,7 @@
 
 	if(delay <= 0 || do_after(user, delay, target = user))
 		for(var/i=0,i<summon_amt,i++)
-			if(!targets.len)
+			if(!length(targets))
 				break
 			var/summoned_object_type = pick(summon_type)
 			var/spawn_place = pick(targets)

code/datums/spells/horsemask.dm

@@ -22,7 +22,7 @@
 
 
 /datum/spell/horsemask/cast(list/targets, mob/user = usr)
-	if(!targets.len)
+	if(!length(targets))
 		to_chat(user, "<span class='notice'>No target found in range.</span>")
 		return
 

code/datums/spells/mind_transfer.dm

@@ -50,18 +50,18 @@ Also, you never added distance checking after target is selected. I've went ahea
 	var/mob/living/caster = user//The wizard/whomever doing the body transferring.
 
 	//MIND TRANSFER BEGIN
-	if(caster.mind.special_verbs.len)//If the caster had any special verbs, remove them from the mob verb list.
+	if(length(caster.mind.special_verbs))//If the caster had any special verbs, remove them from the mob verb list.
 		for(var/V in caster.mind.special_verbs)//Since the caster is using an object spell system, this is mostly moot.
 			remove_verb(caster, V) //But a safety nontheless.
 
-	if(victim.mind.special_verbs.len)//Now remove all of the victim's verbs.
+	if(length(victim.mind.special_verbs))//Now remove all of the victim's verbs.
 		for(var/V in victim.mind.special_verbs)
 			remove_verb(victim, V)
 
 	var/mob/dead/observer/ghost = victim.ghostize(0)
 	caster.mind.transfer_to(victim)
 
-	if(victim.mind.special_verbs.len)//To add all the special verbs for the original caster.
+	if(length(victim.mind.special_verbs))//To add all the special verbs for the original caster.
 		for(var/V in caster.mind.special_verbs)//Not too important but could come into play.
 			add_verb(caster, V)
 
@@ -71,7 +71,7 @@ Also, you never added distance checking after target is selected. I've went ahea
 		caster.key = ghost.key	//have to transfer the key since the mind was not active
 	qdel(ghost)
 
-	if(caster.mind.special_verbs.len)//If they had any special verbs, we add them here.
+	if(length(caster.mind.special_verbs))//If they had any special verbs, we add them here.
 		for(var/V in caster.mind.special_verbs)
 			add_verb(caster, V)
 	//MIND TRANSFER END

code/datums/spells/turf_teleport.dm

@@ -35,7 +35,7 @@
 					continue
 			turfs += T
 
-		if(!turfs.len)
+		if(!length(turfs))
 			var/list/turfs_to_pick_from = list()
 			for(var/turf/T in orange(target,outer_tele_radius))
 				if(!(T in orange(target,inner_tele_radius)))