Migrated test block 16 to Dart 2.0.

tests/corelib/main_test.dart

Index: tests/corelib/main_test.dart
diff --git a/tests/corelib/main_test.dart b/tests/corelib/main_test.dart
deleted file mode 100644
index 024e91fab462b83b6694b603b5ec97e9df4bb2ce..0000000000000000000000000000000000000000
--- a/tests/corelib/main_test.dart
+++ /dev/null
@@ -1,11 +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.
-
-library main_test;
-
-import "package:expect/expect.dart";
-
-main(List<String> args) {
-  Expect.equals(0, args.length);
-}