Fixed tests so they do indeed confirm that values on optional named parameters are not allowed. Add…

tests/language/named_parameters4_negative_test.dart

Index: tests/language/named_parameters4_negative_test.dart
diff --git a/tests/language/named_parameters4_negative_test.dart b/tests/language/named_parameters4_negative_test.dart
deleted file mode 100644
index 719d754fee2d91d56b1c7da6ac284438a4095cc6..0000000000000000000000000000000000000000
--- a/tests/language/named_parameters4_negative_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// 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 program for testing named parameters.
-
-
-class NamedParameters4NegativeTest {
-
-  static int F31(int a, [int b = 20, int c = 30]) {
-    return 100*(100*a + b) + c;
-  }
-
-  static testMain() {
-    try {
-      F31(10, b:25, b:35);  // Duplicate named argument.
-    } catch (var e) {
-      // This is a negative test that should not compile.
-      // If it runs due to a bug, catch and ignore exceptions.
-    }
-  }
-}
-
-main() {
-  NamedParameters4NegativeTest.testMain();
-}