text: // Copyright (C) 2015 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  /*---
  es6id: 23.3.3.5
  description: Throws TypeError if `this` is not Object.
  info: >
    WeakMap.prototype.set ( key, value )
  
    1. Let M be the this value.
    2. If Type(M) is not Object, throw a TypeError exception.
  ---*/
  
  assert.throws(TypeError, function() {
    WeakMap.prototype.set.call(false, {}, 1);
  });
  
  assert.throws(TypeError, function() {
    var map = new WeakMap();
    map.set.call(false, {}, 1);
  });
  