Replace all secondary flags with bitflags stored in the flags_2 var

code/modules/clothing/glasses/glasses.dm

@@ -280,7 +280,7 @@
 	name = "thermoncle"
 	desc = "Never before has seeing through walls felt so gentlepersonly."
 	icon_state = "thermoncle"
-	flags = null //doesn't protect eyes because it's a monocle, duh
+	flags_1 = null //doesn't protect eyes because it's a monocle, duh
 
 /obj/item/clothing/glasses/thermal/monocle/examine(mob/user) //Different examiners see a different description!
 	var/desk = desc

code/modules/clothing/glasses/glasses.dm.rej

@@ -0,0 +1,10 @@
+diff a/code/modules/clothing/glasses/glasses.dm b/code/modules/clothing/glasses/glasses.dm	(rejected hunks)
+@@ -331,7 +331,7 @@
+ 	vision_flags = SEE_TURFS|SEE_MOBS|SEE_OBJS
+ 	darkness_view = 8
+ 	scan_reagents = 1
+-	flags = NODROP
++	flags_1 = NODROP_1
+ 	lighting_alpha = LIGHTING_PLANE_ALPHA_MOSTLY_INVISIBLE
+ 
+ /obj/item/clothing/glasses/godeye/attackby(obj/item/W as obj, mob/user as mob, params)

code/modules/clothing/glasses/hud.dm

@@ -1,7 +1,7 @@
 /obj/item/clothing/glasses/hud
 	name = "HUD"
 	desc = "A heads-up display that provides important info in (almost) real time."
-	flags = null //doesn't protect eyes because it's a monocle, duh
+	flags_1 = null //doesn't protect eyes because it's a monocle, duh
 	origin_tech = "magnets=3;biotech=2"
 	var/hud_type = null