tests/language_2/list/tracer_in_list_test.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.

// @dart = 2.9

main() {
  var a = [[]];
  a[0].add(42);
  if (a[0].length != 1) {
    throw 'Test failed';
  }
}