pkg/front_end/testcases/general/infer_map_literal_with_closure.dart

// Copyright (c) 2020, 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.

class Class {
  var map = {
    'foo': (String a) {
      int c = a.length;
    }
  };
}

main() {}