test rename overhaul: step 7 - corelib tests

tests/corelib/src/HashMapTest.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.
-
-// Test program for the HashMap class.
-
-class HashMapTest {
-
-  static testMain() {
-    // TODO(srdjan/ngeoffray): Add more meaningful testing below. For now this
-    // is used to verify that the test script is picking up these tests.
-    var m = new Map();
-    Expect.equals(0, m.length);
-    Expect.equals(true, m.isEmpty());
-    m["one"] = 1;
-    Expect.equals(1, m.length);
-    Expect.equals(false, m.isEmpty());
-    Expect.equals(1, m["one"]);
-  }
-}
-
-main() {
-  HashMapTest.testMain();
-}