Change core lib, dart2js, and more for new optional parameters syntax

runtime/lib/date_patch.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Dart core library.
 
 // VM implementation of DateImplementation.
 patch class DateImplementation {
   /* patch */ DateImplementation(int year,
-                                 [int month = 1,
-                                  int day = 1,
-                                  int hour = 0,
-                                  int minute = 0,
-                                  int second = 0,
-                                  int millisecond = 0,
-                                  bool isUtc = false])
+                                 {int month: 1,

[Lasse Reichstein Nielsen, 2012/10/09 12:35:00]

And again.

[regis, 2012/10/11 01:33:56]

Done.

[regis, 2012/10/11 01:33:56]

Done.

+                                  int day: 1,
+                                  int hour: 0,
+                                  int minute: 0,
+                                  int second: 0,
+                                  int millisecond: 0,
+                                  bool isUtc: false})
       : this.isUtc = isUtc,
         this.millisecondsSinceEpoch = _brokenDownDateToMillisecondsSinceEpoch(
             year, month, day, hour, minute, second, millisecond, isUtc) {
     if (millisecondsSinceEpoch === null) throw new ArgumentError();
     if (isUtc === null) throw new ArgumentError();
   }
 
   /* patch */ DateImplementation.now()
       : isUtc = false,
         millisecondsSinceEpoch = _getCurrentMs() {
@@ skipping 289 matching lines @@
 
   static String _timeZoneNameForClampedSeconds(int secondsSinceEpoch)
       native "DateNatives_timeZoneName";
 
   static int _timeZoneOffsetInSecondsForClampedSeconds(int secondsSinceEpoch)
       native "DateNatives_timeZoneOffsetInSeconds";
 
   static int _localTimeZoneAdjustmentInSeconds()
       native "DateNatives_localTimeZoneAdjustmentInSeconds";
 }