test262 roll

src/js/i18n.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.
 
 // ECMAScript 402 API implementation.
 
 /**
  * Intl object is a single object that has some named properties,
  * all of which are constructors.
  */
@@ skipping 1733 matching lines @@
   }
 
   if (!NUMBER_IS_FINITE(dateMs)) throw %make_range_error(kDateRange);
 
   return %InternalDateFormatToParts(this, new GlobalDate(dateMs));
 }
 
 %FunctionSetLength(FormatDateToParts, 0);
 
 
-// 0 because date is optional argument.
-AddBoundMethod(GlobalIntlDateTimeFormat, 'format', formatDate, 0, 'dateformat',
+// Length is 1 as specified in ECMA 402 v2+
+AddBoundMethod(GlobalIntlDateTimeFormat, 'format', formatDate, 1, 'dateformat',
                true);
 
 
 /**
  * Returns canonical Area/Location(/Location) name, or throws an exception
  * if the zone name is invalid IANA name.
  */
 function canonicalizeTimeZoneID(tzID) {
   // Skip undefined zones.
   if (IS_UNDEFINED(tzID)) {
@@ skipping 407 matching lines @@
 
 utils.Export(function(to) {
   to.FormatDateToParts = FormatDateToParts;
   to.ToLowerCaseI18N = ToLowerCaseI18N;
   to.ToUpperCaseI18N = ToUpperCaseI18N;
   to.ToLocaleLowerCaseI18N = ToLocaleLowerCaseI18N;
   to.ToLocaleUpperCaseI18N = ToLocaleUpperCaseI18N;
 });
 
 })