- Change "static final" to "static const" in the runtime/ directory.

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 years,
                                  [int month = 1,
                                   int day = 1,
@@ skipping 64 matching lines @@
     int daysSince1970 =
         _flooredDivision(_localDateInUtcMs, Duration.MILLISECONDS_PER_DAY);
     // 1970-1-1 was a Thursday.
     return ((daysSince1970 + Date.THU - Date.MON) % Date.DAYS_IN_WEEK) +
         Date.MON;
   }
 
 
   /** The first list contains the days until each month in non-leap years. The
     * second list contains the days in leap years. */
-  static final List<List<int>> _DAYS_UNTIL_MONTH =
+  static const List<List<int>> _DAYS_UNTIL_MONTH =
       const [const [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334],
              const [0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335]];
 
   // Returns the UTC year, month and day for the corresponding
   // [millisecondsSinceEpoch].
   // Code is adapted from V8.
   static List<int> _decomposeIntoYearMonthDay(int millisecondsSinceEpoch) {
     // TODO(floitsch): cache result.
     final int DAYS_IN_4_YEARS = 4 * 365 + 1;
     final int DAYS_IN_100_YEARS = 25 * DAYS_IN_4_YEARS - 1;
@@ skipping 222 matching lines @@
 
   static String _timeZoneNameForClampedSeconds(int secondsSinceEpoch)
       native "DateNatives_timeZoneName";
 
   static int _timeZoneOffsetInSecondsForClampedSeconds(int secondsSinceEpoch)
       native "DateNatives_timeZoneOffsetInSeconds";
 
   static int _localTimeZoneAdjustmentInSeconds()
       native "DateNatives_localTimeZoneAdjustmentInSeconds";
 }