tests/language_2/interface/duplicate_interface_lib.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Check fail because of cycles in super class relationship.

// @dart = 2.9

library Interface_Lib;

class InterfA {}

class InterfB {}