[MIRROR] some istype to macros (#9802)

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

code/modules/ai/ai_holder.dm

@@ -50,7 +50,7 @@
 		if(!ai_holder)
 			log_debug("[src] could not initialize ai_holder of type [ai_holder_type]")
 			return
-		if(istype(src, /mob/living/carbon/human))
+		if(ishuman(src))
 			var/mob/living/carbon/human/H = src
 			new /datum/hud(H)
 

code/modules/ai/ai_holder_communication.dm

@@ -66,7 +66,7 @@
 		return FALSE // Turrets don't give a fuck so neither will we.
 	/*
 	// Find a nice way of doing this later.
-	if(istype(the_target, /mob/living/simple_mob) && istype(holder, /mob/living/simple_mob))
+	if(isanimal(the_target) && isanimal(holder))
 		var/mob/living/simple_mob/us = holder
 		var/mob/living/simple_mob/them = target
 

code/modules/ai/ai_holder_movement.dm

@@ -169,7 +169,7 @@
 		return
 
 	var/has_hands = TRUE
-	if(istype(holder, /mob/living/simple_mob))
+	if(isanimal(holder))
 		var/mob/living/simple_mob/S = holder
 		has_hands = S.has_hands
 

code/modules/ai/ai_holder_subtypes/slime_xenobio_ai.dm

@@ -107,7 +107,7 @@
 	if(target)
 		if(istype(target, /mob/living/simple_mob/slime/xenobio))	//Don't call reinforcements for internal disputes
 			return
-		if(istype(target, /mob/living/carbon/human))
+		if(ishuman(target))
 			var/mob/living/carbon/human/H = target
 			if(istype(H.species, /datum/species/monkey))			//Or for food
 				return
@@ -170,7 +170,7 @@
 
 // The holder's attack changes based on intent. This lets the AI choose what effect is desired.
 /datum/ai_holder/simple_mob/xenobio_slime/pre_melee_attack(atom/A)
-	if(istype(A, /mob/living))
+	if(isliving(A))
 		var/mob/living/L = A
 		var/mob/living/simple_mob/slime/xenobio/my_slime = holder
 
@@ -182,7 +182,7 @@
 			my_slime.a_intent = I_HURT // Otherwise robust them.
 
 /datum/ai_holder/simple_mob/xenobio_slime/closest_distance(atom/movable/AM)
-	if(istype(AM, /mob/living))
+	if(isliving(AM))
 		var/mob/living/L = AM
 		if(ishuman(L))
 			var/mob/living/carbon/human/H = L