pkg/front_end/testcases/regress/abstract_field_duplicate_initializer.dart

// Copyright (c) 2024, 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.

abstract class Foo {
  abstract int foo;
  Foo(this.foo, this.foo) {}
}