Fixes crashing issues

code/__HELPERS/test_helpers.dm

@@ -4,16 +4,23 @@
 /// It is appreciated to add the reason why the atom shouldn't be initialized if you add it to this list.
 /datum/unit_test/proc/build_list_of_uncreatables()
 	RETURN_TYPE(/list)
-	return list()
-
-#define CREATION_TEST_IGNORE_SELF(path)/datum/unit_test/build_list_of_uncreatables() {\
-	. = ..();\
-	. += path;\
+	var/list/output = list()
+	for (var/type in subtypesof(/datum/ignore_type))
+		var/datum/ignore_type/temp = new()
+		temp.add_ignores(output)
+	return output
+
+// Extension procs crash byond with enough of them due to stack overflows, this allows us to do it
+// without traversing the stack
+/datum/ignore_type/proc/add_ignores(list/target)
+	return
+
+#define CREATION_TEST_IGNORE_SELF(path)/datum/ignore_type/##path/add_ignores(list/target) {\
+	target += path;\
 }
 
-#define CREATION_TEST_IGNORE_SUBTYPES(path)/datum/unit_test/build_list_of_uncreatables() {\
-	. = ..();\
-	. += typesof(path);\
+#define CREATION_TEST_IGNORE_SUBTYPES(path)/datum/ignore_type/##path/add_ignores(list/target) {\
+	target += typesof(path);\
 }
 
 // Annoyingly, dview is defined inside of _DEFINES, so we are doing it here