if oldType == nil {
			tt := *t
			tt.Go = sub.Go
			tt.BadPointer = sub.BadPointer
			typedef[name.Name] = &tt
		}

		// If sub.Go.Name is "_Ctype_struct_foo" or "_Ctype_union_foo" or "_Ctype_class_foo",
		// use that as the Go form for this typedef too, so that the typedef will be interchangeable
		// with the base type.
		// In -godefs mode, do this for all typedefs.