Migrate test block 10 to Dart 2.0.

tests/corelib_strong/int_truncate_test.dart

Index: tests/corelib_strong/int_truncate_test.dart
diff --git a/tests/corelib_strong/int_truncate_test.dart b/tests/corelib_strong/int_truncate_test.dart
deleted file mode 100644
index 8dff5ad3d9adf45b7b2433fbb6c1085aa470a700..0000000000000000000000000000000000000000
--- a/tests/corelib_strong/int_truncate_test.dart
+++ /dev/null
@@ -1,39 +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() {
-  Expect.equals(0, 0.truncate());
-  Expect.equals(1, 1.truncate());
-  Expect.equals(0x1234, 0x1234.truncate());
-  Expect.equals(0x12345678, 0x12345678.truncate());
-  Expect.equals(0x123456789AB, 0x123456789AB.truncate());
-  Expect.equals(0x123456789ABCDEF, 0x123456789ABCDEF.truncate());
-  Expect.equals(0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF,
-      0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF.truncate());
-  Expect.equals(-1, -1.truncate());
-  Expect.equals(-0x1234, -0x1234.truncate());
-  Expect.equals(-0x12345678, -0x12345678.truncate());
-  Expect.equals(-0x123456789AB, -0x123456789AB.truncate());
-  Expect.equals(-0x123456789ABCDEF, -0x123456789ABCDEF.truncate());
-  Expect.equals(-0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF,
-      -0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF.truncate());
-
-  Expect.isTrue(0.truncate() is int);
-  Expect.isTrue(1.truncate() is int);
-  Expect.isTrue(0x1234.truncate() is int);
-  Expect.isTrue(0x12345678.truncate() is int);
-  Expect.isTrue(0x123456789AB.truncate() is int);
-  Expect.isTrue(0x123456789ABCDEF.truncate() is int);
-  Expect.isTrue(
-      0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF.truncate() is int);
-  Expect.isTrue(-1.truncate() is int);
-  Expect.isTrue(-0x1234.truncate() is int);
-  Expect.isTrue(-0x12345678.truncate() is int);
-  Expect.isTrue(-0x123456789AB.truncate() is int);
-  Expect.isTrue(-0x123456789ABCDEF.truncate() is int);
-  Expect.isTrue(
-      -0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF.truncate() is int);
-}