Turn /datum.isprocessing into a datum flag (#38193)

code/modules/antagonists/clockcult/clock_structures/trap_triggers/repeater.dm

@@ -12,7 +12,7 @@
 		return
 	if(!is_servant_of_ratvar(user))
 		return
-	if(!isprocessing)
+	if(!(datum_flags & DF_ISPROCESSING))
 		START_PROCESSING(SSprocessing, src)
 		to_chat(user, "<span class='notice'>You activate [src].</span>")
 		icon_state = "[icon_state]_on"

code/modules/projectiles/projectile.dm

@@ -356,7 +356,7 @@
 	fired = TRUE
 	if(hitscan)
 		process_hitscan()
-	if(!isprocessing)
+	if(!(datum_flags & DF_ISPROCESSING))
 		START_PROCESSING(SSprojectiles, src)
 	pixel_move(1)	//move it now!