Cleanup after inobject slack tracking improvement.

src/v8natives.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file relies on the fact that the following declarations have been made
 // in runtime.js:
 // var $Object = global.Object;
 // var $Boolean = global.Boolean;
 // var $Number = global.Number;
 // var $Function = global.Function;
@@ skipping 1378 matching lines @@
 
 
 // ----------------------------------------------------------------------------
 // Object
 
 function SetUpObject() {
   %CheckIsBootstrapping();
 
   %SetNativeFlag($Object);
   %SetCode($Object, ObjectConstructor);
-  %SetExpectedNumberOfProperties($Object, 4);
 
   %SetProperty($Object.prototype, "constructor", $Object, DONT_ENUM);
 
   // Set up non-enumerable functions on the Object.prototype object.
   InstallFunctions($Object.prototype, DONT_ENUM, $Array(
     "toString", ObjectToString,
     "toLocaleString", ObjectToLocaleString,
     "valueOf", ObjectValueOf,
     "hasOwnProperty", ObjectHasOwnProperty,
     "isPrototypeOf", ObjectIsPrototypeOf,
@@ skipping 476 matching lines @@
 }
 
 function EnqueueMicrotask(fn) {
   var microtaskState = %GetMicrotaskState();
   if (IS_UNDEFINED(microtaskState.queue) || IS_NULL(microtaskState.queue)) {
     microtaskState.queue = new InternalArray;
   }
   microtaskState.queue.push(fn);
   %SetMicrotaskPending(true);
 }