pkg/front_end/testcases/extensions/issue47345.dart

// Copyright (c) 2021, 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.

void main() {}

class Foo {}

extension on Foo {
  static const bar = 1;
  static const doubleBar = bar * 2;
}