Add new InternetAddress class with a static lookup function (including IPv6

tests/standalone/io/secure_server_closing_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";
 import "dart:async";
 import "dart:io";
 import "dart:isolate";
 
-const SERVER_ADDRESS = "127.0.0.1";
 const HOST_NAME = "localhost";
 const CERTIFICATE = "localhost_cert";
 
 void testCloseOneEnd(String toClose) {
   ReceivePort port = new ReceivePort();
   Completer serverDone = new Completer();
   Completer serverEndDone = new Completer();
   Completer clientEndDone = new Completer();
   Future.wait([serverDone.future, serverEndDone.future, clientEndDone.future])
       .then((_) {
         port.close();
       });
-  SecureServerSocket.bind(SERVER_ADDRESS, 0, 5, CERTIFICATE).then((server) {
+  SecureServerSocket.bind(HOST_NAME, 0, 5, CERTIFICATE).then((server) {
     server.listen((serverConnection) {
       serverConnection.listen(
         (data) {
           Expect.fail("No data should be received by server");
         },
         onDone: () {
           serverConnection.close();
           serverEndDone.complete(null);
           server.close();
         });
@@ skipping 15 matching lines @@
         });
       if (toClose == "client") {
         clientConnection.close();
       }
     });
   });
 }
 
 void testCloseBothEnds() {
   ReceivePort port = new ReceivePort();
-  SecureServerSocket.bind(SERVER_ADDRESS, 0, 5, CERTIFICATE).then((server) {
+  SecureServerSocket.bind(HOST_NAME, 0, 5, CERTIFICATE).then((server) {
     var clientEndFuture = SecureSocket.connect(HOST_NAME, server.port);
     server.listen((serverEnd) {
       clientEndFuture.then((clientEnd) {
         clientEnd.destroy();
         serverEnd.destroy();
         server.close();
         port.close();
       });
     });
   });
 }
 
 testPauseServerSocket() {
   const int socketCount = 10;
   var acceptCount = 0;
   var resumed = false;
 
   ReceivePort port = new ReceivePort();
 
-  SecureServerSocket.bind(SERVER_ADDRESS,
+  SecureServerSocket.bind(HOST_NAME,
                           0,
                           2 * socketCount,
                           CERTIFICATE).then((server) {
     Expect.isTrue(server.port > 0);
     var subscription;
     subscription = server.listen((connection) {
       Expect.isTrue(resumed);
       connection.close();
       if (++acceptCount == 2 * socketCount) {
         server.close();
@@ skipping 23 matching lines @@
   });
 }
 
 
 testCloseServer() {
   const int socketCount = 3;
   var endCount = 0;
   ReceivePort port = new ReceivePort();
   List ends = [];
 
-  SecureServerSocket.bind(SERVER_ADDRESS, 0, 15, CERTIFICATE).then((server) {
+  SecureServerSocket.bind(HOST_NAME, 0, 15, CERTIFICATE).then((server) {
     Expect.isTrue(server.port > 0);
     void checkDone() {
       if (ends.length < 2 * socketCount) return;
       for (var end in ends) {
         end.destroy();
       }
       server.close();
       port.close();
     }
 
@@ skipping 20 matching lines @@
                           useBuiltinRoots: false);
 
   testCloseOneEnd("client");
   testCloseOneEnd("server");
   testCloseBothEnds();
   testPauseServerSocket();
   testCloseServer();
   // TODO(whesse): Add testPauseSocket from raw_socket_test.dart.
   // TODO(whesse): Add testCancelResubscribeSocket from raw_socket_test.dart.
 }