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

tests/standalone/io/raw_secure_server_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";
 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 testSimpleBind() {
   ReceivePort port = new ReceivePort();
-  RawSecureServerSocket.bind(SERVER_ADDRESS, 0, 5, CERTIFICATE).then((s) {
+  RawSecureServerSocket.bind(HOST_NAME, 0, 5, CERTIFICATE).then((s) {
     Expect.isTrue(s.port > 0);
     s.close();
     port.close();
   });
 }
 
 void testInvalidBind() {
   int count = 0;
   ReceivePort port = new ReceivePort();
   port.receive((_, __) { count++; if (count == 3) port.close(); });
@@ skipping 11 matching lines @@
     Expect.fail("Failure expected");
   }).catchError((error) {
     Expect.isTrue(error is SocketIOException);
     port.toSendPort().send(1);
   });
 
   // Bind to a port already in use.
   // Either an error or a successful bind is allowed.
   // Windows platforms allow multiple binding to the same socket, with
   // unpredictable results.
-  RawSecureServerSocket.bind(SERVER_ADDRESS, 0, 5, CERTIFICATE).then((s) {
-    RawSecureServerSocket.bind(SERVER_ADDRESS,
+  RawSecureServerSocket.bind(HOST_NAME, 0, 5, CERTIFICATE).then((s) {
+    RawSecureServerSocket.bind(HOST_NAME,
                                s.port,
                                5,
                                CERTIFICATE).then((t) {
       Expect.equals('windows', Platform.operatingSystem);
       Expect.equals(s.port, t.port);
       s.close();
       t.close();
       port.toSendPort().send(1);
     })
     .catchError((error) {
       Expect.notEquals('windows', Platform.operatingSystem);
       Expect.isTrue(error is SocketIOException);
       s.close();
       port.toSendPort().send(1);
     });
   });
 }
 
 void testSimpleConnect(String certificate) {
   ReceivePort port = new ReceivePort();
-  RawSecureServerSocket.bind(SERVER_ADDRESS, 0, 5, certificate).then((server) {
+  RawSecureServerSocket.bind(HOST_NAME, 0, 5, certificate).then((server) {
     var clientEndFuture = RawSecureSocket.connect(HOST_NAME, server.port);
     server.listen((serverEnd) {
       clientEndFuture.then((clientEnd) {
         clientEnd.shutdown(SocketDirection.SEND);
         serverEnd.shutdown(SocketDirection.SEND);
         server.close();
         port.close();
       });
     });
   });
 }
 
 void testSimpleConnectFail(String certificate) {
   ReceivePort port = new ReceivePort();
-  RawSecureServerSocket.bind(SERVER_ADDRESS, 0, 5, certificate).then((server) {
+  RawSecureServerSocket.bind(HOST_NAME, 0, 5, certificate).then((server) {
     var clientEndFuture = RawSecureSocket.connect(HOST_NAME, server.port)
       .then((clientEnd) {
         Expect.fail("No client connection expected.");
       })
       .catchError((error) {
         Expect.isTrue(error is SocketIOException);
       });
     server.listen((serverEnd) {
       Expect.fail("No server connection expected.");
     },
     onError: (error) {
       Expect.isTrue(error is SocketIOException);
       clientEndFuture.then((_) => port.close());
     });
   });
 }
 
 void testServerListenAfterConnect() {
   ReceivePort port = new ReceivePort();
-  RawSecureServerSocket.bind(SERVER_ADDRESS, 0, 5, CERTIFICATE).then((server) {
+  RawSecureServerSocket.bind(HOST_NAME, 0, 5, CERTIFICATE).then((server) {
     Expect.isTrue(server.port > 0);
     var clientEndFuture = RawSecureSocket.connect(HOST_NAME, server.port);
     new Timer(const Duration(milliseconds: 500), () {
       server.listen((serverEnd) {
         clientEndFuture.then((clientEnd) {
           clientEnd.shutdown(SocketDirection.SEND);
           serverEnd.shutdown(SocketDirection.SEND);
           server.close();
           port.close();
         });
@@ skipping 304 matching lines @@
     });
 
     connectClient(server.port).then(runClient).then((socket) {
       socket.close();
       port.close();
     });
   }
 
   if (listenSecure) {
     RawSecureServerSocket.bind(
-        SERVER_ADDRESS, 0, 5, CERTIFICATE).then(serverReady);
+        HOST_NAME, 0, 5, CERTIFICATE).then(serverReady);
   } else {
-    RawServerSocket.bind(SERVER_ADDRESS, 0, 5).then(serverReady);
+    RawServerSocket.bind(HOST_NAME, 0, 5).then(serverReady);
   }
 }
 
 main() {
   Path scriptDir = new Path(new Options().script).directoryPath;
   Path certificateDatabase = scriptDir.append('pkcert');
   SecureSocket.initialize(database: certificateDatabase.toNativePath(),
                           password: 'dartdart',
                           useBuiltinRoots: false);
   testSimpleBind();
   testInvalidBind();
   testSimpleConnect(CERTIFICATE);
   testSimpleConnect("CN=localhost");
   testSimpleConnectFail("not_a_nickname");
   testSimpleConnectFail("CN=notARealDistinguishedName");
   testServerListenAfterConnect();
   testSimpleReadWrite(true, true, false);
   testSimpleReadWrite(true, false, false);
   testSimpleReadWrite(false, true, false);
   testSimpleReadWrite(false, false, false);
   testSimpleReadWrite(false, false, true, true);
   testSimpleReadWrite(false, false, true, false);
 }