Check if the decomposed date is in the correct range.

tests/corelib/date_time_test.dart

Index: tests/corelib/date_time_test.dart
diff --git a/tests/corelib/date_time_test.dart b/tests/corelib/date_time_test.dart
index 80c8bc125c2d24674b0658147052a24aac348311..3ea6e58f6f3095b8e88efe6178220be0da5672fd 100644
--- a/tests/corelib/date_time_test.dart
+++ b/tests/corelib/date_time_test.dart
@@ -259,11 +259,16 @@ class DateTest {
     Expect.throws(() => new Date.fromMillisecondsSinceEpoch(-8640000000000001,
                                                             isUtc: true));
     Expect.throws(() => new Date.fromMillisecondsSinceEpoch(8640000000000001));
-    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, isUtc: true);
+    Expect.throws(() => new Date(dt.year, dt.month, dt.day,
+                                 dt.hour, dt.minute, 0, 1, isUtc: true));
+    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, isUtc: true);
     Expect.throws(() => new Date(dt.year, dt.month, dt.day,
                                  dt.hour, dt.minute, 0, -1, isUtc: true));