Convert argument toObject() in Object.getOwnPropertyNames/Descriptors

src/symbol.js

 // Copyright 2013 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.
 
 "use strict";
 
 // This file relies on the fact that the following declaration has been made
 // in runtime.js:
 // var $Array = global.Array;
 
@@ skipping 51 matching lines @@
 
 
 function SymbolKeyFor(symbol) {
   if (!IS_SYMBOL(symbol)) throw MakeTypeError("not_a_symbol", [symbol]);
   return %SymbolRegistry().keyFor[symbol];
 }
 
 
 // ES6 19.1.2.8
 function ObjectGetOwnPropertySymbols(obj) {
-  if (!IS_SPEC_OBJECT(obj)) {
-    throw MakeTypeError("called_on_non_object",
-                        ["Object.getOwnPropertySymbols"]);
-  }
+  obj = ToObject(obj);
 
   // TODO(arv): Proxies use a shared trap for String and Symbol keys.
 
   return ObjectGetOwnPropertyKeys(obj, true);
 }
 
 
 //-------------------------------------------------------------------
 
 var symbolHasInstance = InternalSymbol("Symbol.hasInstance");
@@ skipping 38 matching lines @@
 
 function ExtendObject() {
   %CheckIsBootstrapping();
 
   InstallFunctions($Object, DONT_ENUM, $Array(
     "getOwnPropertySymbols", ObjectGetOwnPropertySymbols
   ));
 }
 
 ExtendObject();