tests/language/null_to_string2_test.dart

// Copyright (c) 2012, 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.
// Test correct handling of NULL object in invocation and implicit closures.

class A {}

A foo() => null;

main() {
  A nullObj = foo();
  var x = nullObj.toString();
  Expect.isTrue(x is String);
  var y = nullObj.toString;
  Expect.isNotNull(y);
}