text: // Copyright 2015 Samsung Electronics Co., Ltd.
  // Copyright 2015 University of Szeged.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  Function.prototype.toString = Object.prototype.toString;
  assert(Array.toString() === "[object Function]");
  assert(Number.toString() === "[object Function]");
  assert(String.toString() === "[object Function]");
  assert(Boolean.toString() === "[object Function]");
  assert(Object.toString() === "[object Function]");
  assert(Function.toString() === "[object Function]");
  assert(Date.toString() === "[object Function]");
  assert(RegExp.toString() === "[object Function]");
  
  assert(Math.toString() === "[object Math]");
  assert(JSON.toString() === "[object JSON]");
  