ES6: Implement Object.setPrototypeOf

test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt

Index: test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
diff --git a/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt b/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
index 36bc6f691cc0c8b2511295b7166bfc02d454212d..560be18e2f1800fe061213c60a81eaa7f2db8d4c 100644
--- a/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
+++ b/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
@@ -63,7 +63,7 @@ FAIL getSortedOwnPropertyNames(decodeURI) should be length,name. Was arguments,c
 FAIL getSortedOwnPropertyNames(decodeURIComponent) should be length,name. Was arguments,caller,length,name.
 FAIL getSortedOwnPropertyNames(encodeURI) should be length,name. Was arguments,caller,length,name.
 FAIL getSortedOwnPropertyNames(encodeURIComponent) should be length,name. Was arguments,caller,length,name.
-FAIL getSortedOwnPropertyNames(Object) should be create,defineProperties,defineProperty,freeze,getOwnPropertyDescriptor,getOwnPropertyNames,getPrototypeOf,isExtensible,isFrozen,isSealed,keys,length,name,preventExtensions,prototype,seal. Was arguments,caller,create,defineProperties,defineProperty,freeze,getOwnPropertyDescriptor,getOwnPropertyNames,getPrototypeOf,is,isExtensible,isFrozen,isSealed,keys,length,name,preventExtensions,prototype,seal.
+FAIL getSortedOwnPropertyNames(Object) should be create,defineProperties,defineProperty,freeze,getOwnPropertyDescriptor,getOwnPropertyNames,getPrototypeOf,isExtensible,isFrozen,isSealed,keys,length,name,preventExtensions,prototype,seal,setPrototypeOf. Was arguments,caller,create,defineProperties,defineProperty,freeze,getOwnPropertyDescriptor,getOwnPropertyNames,getPrototypeOf,is,isExtensible,isFrozen,isSealed,keys,length,name,preventExtensions,prototype,seal,setPrototypeOf.
 PASS getSortedOwnPropertyNames(Object.prototype) is ['__defineGetter__', '__defineSetter__', '__lookupGetter__', '__lookupSetter__', '__proto__', 'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf']
 FAIL getSortedOwnPropertyNames(Function) should be length,name,prototype. Was arguments,caller,length,name,prototype.
 FAIL getSortedOwnPropertyNames(Function.prototype) should be apply,bind,call,constructor,length,name,toString. Was apply,arguments,bind,call,caller,constructor,length,name,toString.