[MIRROR] Job refactor: strings to references and typepaths [This could seriously break things :)] (#7006)

* Job refactor: strings to references and typepaths

* 0

* holy fuck

* Update preferences.dm

* Update preferences.dm

* Update preferences.dm

* Update preferences.dm

Co-authored-by: Rohesie <rohesie@gmail.com>
Co-authored-by: Gandalf <jzo123@hotmail.com>

code/modules/shuttle/emergency.dm

@@ -268,7 +268,7 @@
 		// the shuttle system doesn't know who these people are, but they
 		// must be important, surely
 		var/obj/item/card/id/ID = new(src)
-		var/datum/job/J = pick(SSjob.occupations)
+		var/datum/job/J = pick(SSjob.joinable_occupations)
 		ID.registered_name = S.random_name(pick(MALE, FEMALE))
 		ID.assignment = J.title
 

code/modules/shuttle/special.dm

@@ -215,8 +215,8 @@
 /obj/structure/table/wood/bar/proc/is_barstaff(mob/living/user)
 	. = FALSE
 	if(ishuman(user))
-		var/mob/living/carbon/human/H = user
-		if(H.mind && H.mind.assigned_role == "Bartender")
+		var/mob/living/carbon/human/human_user = user
+		if(is_bartender_job(human_user.mind?.assigned_role))
 			return TRUE
 
 	var/obj/item/card/id/ID = user.get_idcard(FALSE)