Fix issue 235.

tests/language/src/WrongNumberTypeArgumentsNegativeTest.dart

Index: tests/language/src/WrongNumberTypeArgumentsNegativeTest.dart
===================================================================
--- tests/language/src/WrongNumberTypeArgumentsNegativeTest.dart	(revision 0)
+++ tests/language/src/WrongNumberTypeArgumentsNegativeTest.dart	(revision 0)
@@ -0,0 +1,9 @@
+// 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.
+
+Map<String> foo;  // Error: Map takes 2 type arguments.
+
+main() {
+  foo = null;
+}