test rename overhaul: step 8 - language tests

tests/language/src/NullTest.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.
-// Second dart test program.
-
-class NullTest {
-  static int foo(var obj) {
-    Expect.equals(null, obj);
-  }
-
-  static bool compareToNull(var value) {
-    return null == value;
-  }
-
-  static bool compareWithNull(var value) {
-    return value == null;
-  }
-
-  static int testMain() {
-    var val = 1;
-    var obj = null;
-
-    Expect.equals(null, obj);
-    Expect.equals(null, null);
-
-    foo(obj);
-    foo(null);
-
-    if (obj != null) {
-      foo(null);
-    } else {
-      foo(obj);
-    }
-
-    Expect.isFalse(compareToNull(val));
-    Expect.isTrue(compareToNull(obj));
-    Expect.isFalse(compareWithNull(val));
-    Expect.isTrue(compareWithNull(obj));
-    Expect.isTrue(obj is Object);
-    Expect.isFalse(obj is String);
-    Expect.isTrue(obj is !String);
-    Expect.isFalse(obj is !Object);
-    Expect.isFalse(val is !Object);
-
-    return 0;
-  }
-}
-
-
-main() {
-  NullTest.testMain();
-}