Merges Heal_Damage and Heal_robotic_damage procs

like I should have done in the first place.
Corrects all usages of Heal_damage so it works with the changed version.
Same goes for Heal_robotic_damage

code/modules/mob/living/carbon/human/human_damage.dm

@@ -79,7 +79,7 @@
 	var/list/obj/item/organ/limb/parts = get_damaged_organs(brute,burn)
 	if(!parts.len)	return
 	var/obj/item/organ/limb/picked = pick(parts)
-	if(picked.heal_damage(brute,burn))
+	if(picked.heal_damage(brute,burn,0))
 		update_damage_overlays(0)
 	updatehealth()
 
@@ -106,7 +106,7 @@
 		var/brute_was = picked.brute_dam
 		var/burn_was = picked.burn_dam
 
-		update |= picked.heal_damage(brute,burn)
+		update |= picked.heal_damage(brute,burn,0)
 
 		brute -= (brute_was-picked.brute_dam)
 		burn -= (burn_was-picked.burn_dam)

code/modules/mob/living/carbon/human/human_defense.dm

@@ -129,7 +129,7 @@ emp_act
 		if(affecting.status == ORGAN_ROBOTIC)
 			if (WT.remove_fuel(0))
 				if(affecting.brute_dam > 0)
-					affecting.heal_robotic_damage(30,0) //Repair Brute
+					affecting.heal_damage(30,0,1) //Repair Brute
 					update_damage_overlays(0)
 					updatehealth()
 					for(var/mob/O in viewers(user, null))
@@ -147,7 +147,7 @@ emp_act
 		var/obj/item/weapon/cable_coil/coil = I
 		if(affecting.status == ORGAN_ROBOTIC)
 			if(affecting.burn_dam > 0)
-				affecting.heal_robotic_damage(0,30) //Repair Burn
+				affecting.heal_damage(0,30,1) //Repair Burn
 				updatehealth()
 				coil.use(1)
 				for(var/mob/O in viewers(user, null))

code/modules/surgery/organs/organ.dm

@@ -136,8 +136,13 @@
 //Heals brute and burn damage for the organ. Returns 1 if the damage-icon states changed at all.
 //Damage cannot go below zero.
 //Cannot remove negative damage (i.e. apply damage)
-/obj/item/organ/limb/proc/heal_damage(brute, burn)
-	if(status == ORGAN_ROBOTIC) // This makes robolimbs not healable by chems
+/obj/item/organ/limb/proc/heal_damage(brute, burn, var/robotic)
+
+	if(robotic && status != ORGAN_ROBOTIC) // This makes organic limbs not heal when the proc is in Robotic mode.
+		brute = max(0, brute - 3)
+		burn = max(0, burn - 3)
+
+	if(!robotic && status == ORGAN_ROBOTIC) // This makes robolimbs not healable by chems.
 		brute = max(0, brute - 3)
 		burn = max(0, burn - 3)
 
@@ -146,18 +151,6 @@
 	return update_organ_icon()
 
 
-/obj/item/organ/limb/proc/heal_robotic_damage(brute, burn) //so you can heal robotic limbs but not with the original proc - RR
-	if(status == ORGAN_ORGANIC) //This is a robotic heal proc so no healing organic limbs - RR
-		brute = max(0, brute - 3)
-		burn = max(0, burn - 3)
-
-	brute_dam	= max(brute_dam - brute, 0)
-	burn_dam	= max(burn_dam - burn, 0)
-	return update_organ_icon()
-
-
-
-
 //Returns total damage...kinda pointless really
 /obj/item/organ/limb/proc/get_damage()
 	return brute_dam + burn_dam