Fix date test.

tests/corelib/date_time_test.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 test program for Date.
 
 class DateTest {
   // Tests if the time moves eventually forward.
   static void testNow() {
     var t1 = new Date.now();
@@ skipping 246 matching lines @@
     Expect.throws(() => new Date.fromMillisecondsSinceEpoch(8640000000000001,
                                                             isUtc: true));
     Expect.throws(() => new Date.fromMillisecondsSinceEpoch(-8640000000000001,
                                                             isUtc: true));
     Expect.throws(() => new Date.fromMillisecondsSinceEpoch(8640000000000001));
     Expect.throws(
         () => new Date.fromMillisecondsSinceEpoch(-8640000000000001));
     dt = new Date.fromMillisecondsSinceEpoch(8640000000000000);
     Expect.throws(() => new Date(dt.year, dt.month, dt.day,
                                  dt.hour, dt.minute, 0, 1));
-    dt = new Date.fromMillisecondsSinceEpoch(-8640000000000000);
+    dt = new Date.fromMillisecondsSinceEpoch(-8640000000000000, isUtc: true);
     Expect.throws(() => new Date(dt.year, dt.month, dt.day,
                                  dt.hour, dt.minute, 0, -1, isUtc: true));
   }
 
   static void testUTCGetters() {
     var dt = new Date.fromMillisecondsSinceEpoch(1305140315000, isUtc: true);
     Expect.equals(2011, dt.year);
     Expect.equals(5, dt.month);
     Expect.equals(11, dt.day);
     Expect.equals(18, dt.hour);
@@ skipping 538 matching lines @@
     testEquivalentYears();
     testExtremes();
     testFarAwayDates();
     testWeekday();
   }
 }
 
 main() {
   DateTest.testMain();
 }