examine signature changed to include distance

- distance is INFINITE, 0, or a positive integer based on get_dist() between
the examiner and examinee's turfs when they are on the same Z. When the
examiner is dead or a ghost, distance is always 0.
- also updates /examine( implementations to use it!
- adds w_class_to_name proc for reusing "It is a X item." examine behavior.

code/modules/mob/living/simple_mob/harvesting.dm

@@ -15,10 +15,10 @@
 	// Associative list of paths and their chances. path = straws in the lot
 	var/list/harvest_results
 
-/mob/living/simple_mob/examine(mob/user)
+/mob/living/simple_mob/examine(mob/user, distance, infix, suffix)
 	. = ..()
 
-	if(user && (isobserver(user) || get_dist(user, src) <= 3))
+	if(user && (isobserver(user) || distance <= 3))
 
 		var/datum/gender/G = gender_datums[get_visible_gender()]
 		if(stat == DEAD)

code/modules/mob/living/simple_mob/subtypes/animal/pets/parrot.dm

@@ -89,7 +89,7 @@
 		to_chat(src, span("warning", "\The [user] takes your [my_headset.name] away! How cruel!"))
 		my_headset = null
 
-/mob/living/simple_mob/animal/passive/bird/parrot/examine(mob/user)
+/mob/living/simple_mob/animal/passive/bird/parrot/examine(mob/user, distance, infix, suffix)
 	. = ..()
 	if(my_headset)
 		. += "It is wearing \a [my_headset]."
@@ -250,4 +250,4 @@
 	if(holder.stat || !holder.say_list || !message || speaker == holder)
 		return
 	var/datum/say_list/S = holder.say_list
-	S.speak |= message
+	S.speak |= message

code/modules/mob/living/simple_mob/subtypes/animal/sif/grafadreka/grafadreka.dm

@@ -163,7 +163,7 @@ You can eat glowing tree fruit to fuel your <b>ranged spitting attack</b> and <b
 	reset_charisma()
 
 
-/mob/living/simple_mob/animal/sif/grafadreka/examine(mob/living/user)
+/mob/living/simple_mob/animal/sif/grafadreka/examine(mob/user, distance, infix, suffix)
 	. = ..()
 	if (istype(user, /mob/living/simple_mob/animal/sif/grafadreka) || isobserver(user))
 		var/datum/gender/G = gender_datums[get_visible_gender()]

code/modules/mob/living/simple_mob/subtypes/animal/sif/sif.dm

@@ -24,7 +24,7 @@
 	// caps the amount drakes can heal with their sap wound tending interaction.
 	sap_heal_threshold = min(sap_heal_threshold, (round(health / getMaxHealth() / scarification_period)+1) * scarification_period)
 
-/mob/living/simple_mob/animal/sif/examine(mob/user)
+/mob/living/simple_mob/animal/sif/examine(mob/user, distance, infix, suffix)
 	. = ..()
 	if(stat != DEAD)
 		var/scarification = 1-sap_heal_threshold

code/modules/mob/living/simple_mob/subtypes/illusion/illusion.dm

@@ -39,9 +39,9 @@
 
 // Because we can't perfectly duplicate some examine() output, we directly examine the AM it is copying.  It's messy but
 // this is to prevent easy checks from the opposing force.
-/mob/living/simple_mob/illusion/examine(mob/user)
+/mob/living/simple_mob/illusion/examine(mob/user, distance, infix, suffix)
 	if(copying)
-		return copying.examine(user)
+		return copying.examine(user, distance, infix, suffix)
 	else
 		return list("???")
 
@@ -113,4 +113,4 @@
 
 /mob/living/simple_mob/illusion/get_catalogue_delay()
 	if(copying)
-		return copying.get_catalogue_delay()
+		return copying.get_catalogue_delay()

code/modules/mob/living/simple_mob/subtypes/occult/constructs/_construct.dm

@@ -132,7 +132,7 @@
 		return
 	return ..()
 
-/mob/living/simple_mob/construct/examine(mob/user)
+/mob/living/simple_mob/construct/examine(mob/user, distance, infix, suffix)
 	. = ..(user)
 	var/max = getMaxHealth()
 	if (health < max)

code/modules/mob/living/simple_mob/subtypes/slime/xenobio/xenobio.dm

@@ -73,7 +73,7 @@
 
 	..()
 
-/mob/living/simple_mob/slime/xenobio/examine(mob/user)
+/mob/living/simple_mob/slime/xenobio/examine(mob/user, distance, infix, suffix)
 	. = ..()
 	if(hat)
 		. += "It is wearing \a [hat]."