Consistently say 'own' property

src/messages.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.
 
 // -------------------------------------------------------------------
 
 var kMessages = {
   // Error
   cyclic_proto:                  ["Cyclic __proto__ value"],
   code_gen_from_strings:         ["%0"],
@@ skipping 1222 matching lines @@
 %SetProperty($Error.prototype, 'message', '', DONT_ENUM);
 
 // Global list of error objects visited during ErrorToString. This is
 // used to detect cycles in error toString formatting.
 var visited_errors = new InternalArray();
 var cyclic_error_marker = new $Object();
 
 function GetPropertyWithoutInvokingMonkeyGetters(error, name) {
   var current = error;
   // Climb the prototype chain until we find the holder.
-  while (current && !%HasLocalProperty(current, name)) {
+  while (current && !%HasOwnProperty(current, name)) {
     current = %GetPrototype(current);
   }
   if (IS_NULL(current)) return UNDEFINED;
   if (!IS_OBJECT(current)) return error[name];
   // If the property is an accessor on one of the predefined errors that can be
   // generated statically by the compiler, don't touch it. This is to address
   // http://code.google.com/p/chromium/issues/detail?id=69187
   var desc = %GetOwnProperty(current, name);
   if (desc && desc[IS_ACCESSOR_INDEX]) {
     var isName = name === "name";
@@ skipping 80 matching lines @@
     return result;
   };
 
   %DefineOrRedefineAccessorProperty(
       boilerplate, 'stack', getter, setter, DONT_ENUM);
 
   return boilerplate;
 }
 
 var kStackOverflowBoilerplate = SetUpStackOverflowBoilerplate();