Missing handling of default arguments in socket stream readInto

tests/standalone/src/EchoServerTest.dart

 // Copyright (c) 2012, 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.
 //
 // Echo server test program for testing sockets.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // VMOptions=--short_socket_write
 // VMOptions=--short_socket_read --short_socket_write
 
-#library("EchoServerTest");
 #import("dart:io");
 #import("dart:isolate");
 #source("TestingServer.dart");
 
 class EchoServerTest {
 
   static void testMain() {
     EchoServerGame echoServerGame = new EchoServerGame.start();
   }
 }
@@ skipping 103 matching lines @@
   ReceivePort _receivePort;
   SendPort _sendPort;
   List<int> _buffer;
   int _messages;
 }
 
 class EchoServer extends TestingServer {
 
   static final msgSize = EchoServerGame.MSGSIZE;
 
-  void connectionHandler(Socket connection) {
+  void onConnection(Socket connection) {
 
     void messageHandler() {
 
       List<int> buffer = new List<int>(msgSize);
       int bytesRead = 0;
 
       void handleRead() {
         int read = connection.readList(buffer, bytesRead, msgSize - bytesRead);
         if (read > 0) {
           bytesRead += read;
@@ skipping 43 matching lines @@
 
     connection.onData = messageHandler;
     connection.onClosed = closeHandler;
     connection.onError = errorHandler;
   }
 }
 
 main() {
   EchoServerTest.testMain();
 }