test rename overhaul: step 8 - language tests

tests/language/src/ContextTest.dart

-// Copyright (c) 2011, 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 for capturing.
-
-class ContextTest {
-  static foo(Function f) {
-    return f();
-  }
-
-  static void testMain() {
-    int x = 42;
-    bar() { return x; }
-    x++;
-    Expect.equals(43, foo(bar));
-  }
-}
-
-main() {
-  ContextTest.testMain();
-}