Enable parsing of IPv6 form addresse (see rfc2373 and rfc2732).

tests/standalone/io/web_socket_test.dart

 // Copyright (c) 2013, 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.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // VMOptions=--short_socket_write
 // VMOptions=--short_socket_read --short_socket_write
 
 import "package:expect/expect.dart";
@@ skipping 347 matching lines @@
 
       for (int i = 0; i < connections; i++) {
         var completer = new Completer();
         futures.add(completer.future);
         WebSocket.connect('${baseWsUrl}')
             .then((websocket) {
                 websocket.listen((_) { websocket.close(); },
                                onDone: completer.complete);
             });
 
-        futures.add(client.openUrl("GET", new Uri.fromString('${baseHttpUrl}'))
+        futures.add(client.openUrl("GET", Uri.parse('${baseHttpUrl}'))
              .then((request) => request.close())
              .then((response) {
                response.listen((_) { });
                Expect.equals(HttpStatus.OK, response.statusCode);
                }));
       }
 
       Future.wait(futures).then((_) {
         server.close();
         client.close();
@@ skipping 31 matching lines @@
   SecureSocket.initialize(database: testPkcertDatabase.toNativePath(),
                           password: "dartdart");
 }
 
 
 main() {
   new SecurityConfiguration(secure: false).runTests();
   initializeSSL();
   new SecurityConfiguration(secure: true).runTests();
 }