diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_3_1/Object/regress-444787.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_3_1/Object/regress-444787.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 444787;
+var summary = 'Object.getPrototypeOf';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var i;
+  var type;
+  var instance;
+  var types = [
+    Array,
+    Boolean,
+    Date,
+    Error,
+    Function,
+    Math,
+    Number,
+    Object,
+    RegExp,
+    String,
+    ];
+
+  for (i = 0; i < types.length; i++)
+  {
+    type = types[i];
+
+    if (typeof type.__proto__ != 'undefined')
+    {
+      expect = type.__proto__;
+      actual = Object.getPrototypeOf(type);
+      reportCompare(expect, actual, summary + ': ' + type.name);
+    }
+
+    try
+    {
+      eval('instance = new ' + type.name);
+      expect = type.prototype;
+      actual = Object.getPrototypeOf(instance);
+      reportCompare(expect, actual, summary + ': new ' + type.name);
+    }
+    catch(ex if ex instanceof TypeError)
+    {
+      print('Ignore ' + ex);
+    }
+    catch(ex)
+    {
+      actual = ex + '';
+      reportCompare(expect, actual, summary + ': new ' + type.name);
+    }
+
+  }
+
+  types = [null, undefined];
+
+  for (i = 0; i < types.length; i++)
+  {
+    type = types[i];
+    expect = 'TypeError: Object.getPrototype is not a function';
+    try
+    {
+      actual = Object.getPrototype(null);
+    }
+    catch(ex)
+    {
+      actual = ex + '';
+    }
+    reportCompare(expect, actual, summary + ': ' + type);
+  }
+
+  var objects = [
+    {instance: [0], type: Array},
+    {instance: (function () {}), type: Function},
+    {instance: eval, type: Function},
+    {instance: parseInt, type: Function},
+    {instance: {a: ''}, type: Object},
+    {instance: /foo/, type: RegExp}
+    ];
+
+  for (i = 0; i < objects.length; i++)
+  {
+    instance = objects[i].instance;
+    type     = objects[i].type;
+    expect   = type.prototype;
+    actual   = Object.getPrototypeOf(instance);
+    reportCompare(expect, actual, summary + ' instance: ' + instance + ', type: ' + type.name);
+  }
+
+  var non_objects = [ true, false, 1.0, Infinity, NaN, Math.PI, "bar" ];
+
+  for (i = 0; i < non_objects.length; i++)
+  {
+    instance = non_objects[i];
+    expect = 'TypeError: instance is not an object';
+    try
+    {
+      actual = Object.getPrototypeOf(instance);
+    }
+    catch(ex)
+    {
+      actual = ex + '';
+    }
+    reportCompare(expect, actual, summary + ' non-object: ' + actual);
+  }
+
+  exitFunc ('test');
+}