pkg/front_end/testcases/general/top_level_map_literal_error.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.

var a = {0};
var b = {0: 1};
var c = {...a, ...b};

main() {}