--- /dev/null
+#include "test.h"
+
+@interface Super { id isa; }
++class;
+@end
+
+@interface Sub1 : Super
++(int)method;
++(Class)classref;
+@end
+
+@interface Sub2 : Super
++(int)method;
++(Class)classref;
+@end
+
+@interface SubSub1 : Sub1 @end
+
+@interface SubSub2 : Sub2 @end