Proper mirror PR for the disease refactor because I fucked up the first one. (#2026)

* Revert "im a dumbass and didn't see the .rej files Revert "[MIRROR] Disease Refactor" (#2025)"

This reverts commit 44742cb115.

* Delete shuttle_loan.dm.rej

* Delete life.dm.rej

* Update life.dm

* Delete life.dm.rej

* compile

code/modules/reagents/chemistry/machinery/pandemic.dm

@@ -150,7 +150,7 @@
 				if(!new_name || ..())
 					return
 				A.AssignName(new_name)
-				for(var/datum/disease/advance/AD in SSdisease.processing)
+				for(var/datum/disease/advance/AD in SSdisease.active_diseases)
 					AD.Refresh()
 				. = TRUE
 		if("create_culture_bottle")

code/modules/reagents/chemistry/reagents/medicine_reagents.dm

@@ -58,13 +58,11 @@
 	M.confused = 0
 	M.SetSleeping(0, 0)
 	M.jitteriness = 0
-	for(var/datum/disease/D in M.viruses)
+	for(var/thing in M.viruses)
+		var/datum/disease/D = thing
 		if(D.severity == NONTHREAT)
 			continue
-		D.spread_text = "Remissive"
-		D.stage--
-		if(D.stage < 1)
-			D.cure()
+		D.cure()
 	..()
 	. = 1
 
@@ -686,7 +684,7 @@
 	taste_description = "dull toxin"
 
 /datum/reagent/medicine/oculine/on_mob_life(mob/living/M)
-	var/obj/item/organ/eyes/eyes = M.getorganslot("eye_sight")
+	var/obj/item/organ/eyes/eyes = M.getorganslot("eyes_sight")
 	if (!eyes)
 		return
 	if(M.disabilities & BLIND)

code/modules/reagents/chemistry/reagents/other_reagents.dm

@@ -13,7 +13,8 @@
 
 /datum/reagent/blood/reaction_mob(mob/M, method=TOUCH, reac_volume)
 	if(data && data["viruses"])
-		for(var/datum/disease/D in data["viruses"])
+		for(var/thing in data["viruses"])
+			var/datum/disease/D = thing
 
 			if((D.spread_flags & SPECIAL) || (D.spread_flags & NON_CONTAGIOUS))
 				continue
@@ -73,11 +74,6 @@
 	if(data["blood_DNA"])
 		B.blood_DNA[data["blood_DNA"]] = data["blood_type"]
 
-	for(var/datum/disease/D in data["viruses"])
-		var/datum/disease/newVirus = D.Copy(1)
-		B.viruses += newVirus
-		newVirus.holder = B
-
 
 /datum/reagent/liquidgibs
 	name = "Liquid gibs"
@@ -96,7 +92,8 @@
 
 /datum/reagent/vaccine/reaction_mob(mob/M, method=TOUCH, reac_volume)
 	if(islist(data) && (method == INGEST || method == INJECT))
-		for(var/datum/disease/D in M.viruses)
+		for(var/thing in M.viruses)
+			var/datum/disease/D = thing
 			if(D.GetDiseaseID() in data)
 				D.cure()
 		M.resistances |= data