Migrate test block 7 to Dart 2.0.

tests/corelib_strong/double_round_to_double3_test.dart

Index: tests/corelib_strong/double_round_to_double3_test.dart
diff --git a/tests/corelib_strong/double_round_to_double3_test.dart b/tests/corelib_strong/double_round_to_double3_test.dart
deleted file mode 100644
index c53ac8168b47fa68d368ba6d2deeabc4aadc106c..0000000000000000000000000000000000000000
--- a/tests/corelib_strong/double_round_to_double3_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, 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.
-
-import 'package:expect/expect.dart';
-
-main() {
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496.0, 4503599627370496.0.roundToDouble());
-  Expect.equals(4503599627370497.0, 4503599627370497.0.roundToDouble());
-  Expect.equals(4503599627370498.0, 4503599627370498.0.roundToDouble());
-  Expect.equals(4503599627370499.0, 4503599627370499.0.roundToDouble());
-  Expect.equals(9007199254740991.0, 9007199254740991.0.roundToDouble());
-  Expect.equals(9007199254740992.0, 9007199254740992.0.roundToDouble());
-  Expect.equals(-4503599627370496.0, (-4503599627370496.0).roundToDouble());
-  Expect.equals(-4503599627370497.0, (-4503599627370497.0).roundToDouble());
-  Expect.equals(-4503599627370498.0, (-4503599627370498.0).roundToDouble());
-  Expect.equals(-4503599627370499.0, (-4503599627370499.0).roundToDouble());
-  Expect.equals(-9007199254740991.0, (-9007199254740991.0).roundToDouble());
-  Expect.equals(-9007199254740992.0, (-9007199254740992.0).roundToDouble());
-  Expect.isTrue(4503599627370496.0.roundToDouble() is double);
-  Expect.isTrue(4503599627370497.0.roundToDouble() is double);
-  Expect.isTrue(4503599627370498.0.roundToDouble() is double);
-  Expect.isTrue(4503599627370499.0.roundToDouble() is double);
-  Expect.isTrue(9007199254740991.0.roundToDouble() is double);
-  Expect.isTrue(9007199254740992.0.roundToDouble() is double);
-  Expect.isTrue((-4503599627370496.0).roundToDouble() is double);
-  Expect.isTrue((-4503599627370497.0).roundToDouble() is double);
-  Expect.isTrue((-4503599627370498.0).roundToDouble() is double);
-  Expect.isTrue((-4503599627370499.0).roundToDouble() is double);
-  Expect.isTrue((-9007199254740991.0).roundToDouble() is double);
-  Expect.isTrue((-9007199254740992.0).roundToDouble() is double);
-}