Change the signature for all network bind calls.

tests/standalone/io/http_connection_header_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.
 //
 
 import "package:expect/expect.dart";
 import "dart:isolate";
 import "dart:io";
 
 void setConnectionHeaders(HttpHeaders headers) {
@@ skipping 14 matching lines @@
   if (persistentConnection) {
     Expect.equals(2, headers[HttpHeaders.CONNECTION].length);
   } else {
     Expect.equals(3, headers[HttpHeaders.CONNECTION].length);
     Expect.isTrue(headers[HttpHeaders.CONNECTION].any(
         (value) => value.toLowerCase() == "close"));
   }
 }
 
 void test(int totalConnections, bool clientPersistentConnection) {
-  HttpServer.bind().then((server) {
+  HttpServer.bind("127.0.0.1", 0).then((server) {
     server.listen((HttpRequest request) {
       // Check expected request.
       Expect.equals(clientPersistentConnection, request.persistentConnection);
       Expect.equals(clientPersistentConnection,
                     request.response.persistentConnection);
       checkExpectedConnectionHeaders(request.headers,
                                      request.persistentConnection);
 
       // Generate response. If the client signaled non-persistent
       // connection the server should not need to set it.
@@ skipping 27 matching lines @@
         });
     }
   });
 }
 
 
 void main() {
   test(2, false);
   test(2, true);
 }