Defining Part 4 - Code cleanup toward defines (... and the rest) (#19388)

* I wasn't done

* nits

code/modules/admin/verbs/SDQL2/SDQL_2.dm

@@ -129,7 +129,7 @@
 								var/i = 0
 								for(var/v in sets)
 									if(++i == sets.len)
-										if(istype(temp, /turf) && (v == "x" || v == "y" || v == "z"))
+										if(isturf(temp) && (v == "x" || v == "y" || v == "z"))
 											continue
 										if(!temp.vv_edit_var(v, SDQL_expression(d, set_list[sets])))
 											to_chat(usr, "[temp] rejected your varedit.")

code/modules/admin/verbs/adminpm.dm

@@ -21,7 +21,7 @@
 		if(T.mob)
 			if(isnewplayer(T.mob))
 				targets["(New Player) - [T]"] = T
-			else if(istype(T.mob, /mob/dead/observer))
+			else if(isobserver(T.mob))
 				targets["[T.mob.name](Ghost) - [T]"] = T
 			else
 				targets["[T.mob.real_name](as [T.mob.name]) - [T]"] = T
@@ -43,7 +43,7 @@
 		if(T.mob)
 			if(isnewplayer(T.mob))
 				targets["[T] - (New Player)"] = T
-			else if(istype(T.mob, /mob/dead/observer))
+			else if(isobserver(T.mob))
 				targets["[T] - [T.mob.name](Ghost)"] = T
 			else
 				targets["[T] - [T.mob.real_name](as [T.mob.name])"] = T

code/modules/admin/verbs/debug.dm

@@ -257,7 +257,7 @@ GLOBAL_PROTECT(AdminProcCallSpamPrevention)
 		return
 	var/turf/T = mob.loc
 
-	if(!( istype(T, /turf) ))
+	if(!isturf(T))
 		return
 
 	var/datum/gas_mixture/env = T.return_air()
@@ -328,7 +328,7 @@ GLOBAL_PROTECT(AdminProcCallSpamPrevention)
 	var/mob/choice = input("Choose a player to play the pAI", "Spawn pAI") in available
 	if(!choice)
 		return 0
-	if(!istype(choice, /mob/dead/observer))
+	if(!isobserver(choice))
 		var/confirm = input("[choice.key] isn't ghosting right now. Are you sure you want to yank [choice.p_them()] out of [choice.p_their()] body and place [choice.p_them()] in this pAI?", "Spawn pAI Confirmation", "No") in list("Yes", "No")
 		if(confirm != "Yes")
 			return 0

code/modules/admin/verbs/randomverbs.dm

@@ -24,7 +24,7 @@
 		return
 
 	if(ismob(M))
-		if(istype(M, /mob/living/silicon/ai))
+		if(isAI(M))
 			alert("The AI can't be sent to prison you jerk!", null, null, null, null, null)
 			return
 		//strip their stuff before they teleport into a cell :downs:
@@ -774,7 +774,7 @@ Traitors and the like can also be revived with the previous role mostly intact.
 	log_admin("[key_name(usr)] has gibbed [key_name(M)]")
 	message_admins("[key_name_admin(usr)] has gibbed [key_name_admin(M)]", 1)
 
-	if(istype(M, /mob/dead/observer))
+	if(isobserver(M))
 		gibs(M.loc)
 		return
 
@@ -790,7 +790,7 @@ Traitors and the like can also be revived with the previous role mostly intact.
 
 	var/confirm = alert(src, "You sure?", "Confirm", "Yes", "No")
 	if(confirm == "Yes")
-		if(istype(mob, /mob/dead/observer)) // so they don't spam gibs everywhere
+		if(isobserver(mob)) // so they don't spam gibs everywhere
 			return
 		else
 			mob.gib()