Method destroyed_in_order

tests/unittests/unittests.cpp:47–47

	static void reset() { _destroy_count() = 0; _id() = 0; _destroyed_in_order() = true; _last_destroyed_id() = -1; }
	static int destroy_count() { return _destroy_count(); }
	static bool destroyed_in_order() { return _destroyed_in_order(); }
	
private:
	static int& _destroy_count() { static int c = 0; return c; }