Moves several clothing-specific flags from /atom to their proper type

code/game/objects/items/religion.dm

@@ -325,7 +325,7 @@
 	icon_state = "crusader"
 	w_class = WEIGHT_CLASS_NORMAL
 	armor = list("melee" = 50, "bullet" = 50, "laser" = 50, "energy" = 40, "bomb" = 60, "bio" = 0, "rad" = 0, "fire" = 60, "acid" = 60) //does this even do anything on boots?
-	flags_1 = NOSLIP_1
+	clothing_flags = NOSLIP
 	cold_protection = FEET
 	min_cold_protection_temperature = SHOES_MIN_TEMP_PROTECT
 	heat_protection = FEET

code/game/objects/items/tanks/tanks.dm

@@ -38,7 +38,7 @@
 				return
 			if(H.wear_mask.mask_adjusted)
 				H.wear_mask.adjustmask(H)
-			if(!(H.wear_mask.flags_1 & MASKINTERNALS_1))
+			if(!(H.wear_mask.clothing_flags & MASKINTERNALS))
 				to_chat(H, "<span class='warning'>[H.wear_mask] can't use [src]!</span>")
 				return