Second round of cleanups for new optional parameter semantics.

tests/standalone/io/web_socket_test.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.
 //
 
 #import("dart:io");
 #import("dart:scalarlist");
 
 void testRequestResponseClientCloses(
     int totalConnections, int closeStatus, String closeReason) {
   HttpServer server = new HttpServer();
   HttpClient client = new HttpClient();
 
-  server.listen("127.0.0.1", 0, totalConnections);
+  server.listen("127.0.0.1", 0, backlog: totalConnections);
 
   // Create a web socket handler and set is as the HTTP server default
   // handler.
   WebSocketHandler wsHandler = new WebSocketHandler();
   wsHandler.onOpen = (WebSocketConnection conn) {
     var count = 0;
     conn.onMessage = (Object message) => conn.send(message);
     conn.onClosed = (status, reason) {
       Expect.equals(closeStatus === null
                     ? WebSocketStatus.NO_STATUS_RECEIVED
@@ skipping 32 matching lines @@
     };
   }
 }
 
 
 void testRequestResponseServerCloses(
     int totalConnections, int closeStatus, String closeReason) {
   HttpServer server = new HttpServer();
   HttpClient client = new HttpClient();
 
-  server.listen("127.0.0.1", 0, totalConnections);
+  server.listen("127.0.0.1", 0, backlog: totalConnections);
 
   // Create a web socket handler and set is as the HTTP server default
   // handler.
   int closeCount = 0;
   WebSocketHandler wsHandler = new WebSocketHandler();
   wsHandler.onOpen = (WebSocketConnection conn) {
     String messageText = "Hello, world!";
     int messageCount = 0;
     conn.onMessage = (Object message) {
       messageCount++;
@@ skipping 30 matching lines @@
       Expect.equals(closeReason === null ? "" : closeReason, reason);
     };
   }
 }
 
 
 void testMessageLength(int messageLength) {
   HttpServer server = new HttpServer();
   HttpClient client = new HttpClient();
 
-  server.listen("127.0.0.1", 0, 1);
+  server.listen("127.0.0.1", 0, backlog: 1);
 
   // Create a web socket handler and set is as the HTTP server default
   // handler.
   Uint8List originalMessage = new Uint8List(messageLength);
   WebSocketHandler wsHandler = new WebSocketHandler();
   wsHandler.onOpen = (WebSocketConnection conn) {
     conn.onMessage = (Object message) {
       Expect.listEquals(originalMessage, message);
       conn.send(message);
     };
@@ skipping 14 matching lines @@
   wsconn.onOpen = () {
     wsconn.send(originalMessage);
   };
 }
 
 
 void testNoUpgrade() {
   HttpServer server = new HttpServer();
   HttpClient client = new HttpClient();
 
-  server.listen("127.0.0.1", 0, 5);
+  server.listen("127.0.0.1", 0, backlog: 5);
 
   // Create a server which always responds with a redirect.
   server.defaultRequestHandler = (request, response) {
     response.statusCode = HttpStatus.MOVED_PERMANENTLY;
     response.outputStream.close();
   };
 
   HttpClientConnection conn = client.get("127.0.0.1", server.port, "/");
   conn.followRedirects = false;
   WebSocketClientConnection wsconn = new WebSocketClientConnection(conn);
   wsconn.onNoUpgrade = (response) {
     Expect.equals(HttpStatus.MOVED_PERMANENTLY, response.statusCode);
     client.shutdown();
     server.close();
   };
 }
 
 
 void testUsePOST() {
   HttpServer server = new HttpServer();
   HttpClient client = new HttpClient();
 
-  server.listen("127.0.0.1", 0, 5);
+  server.listen("127.0.0.1", 0, backlog: 5);
 
   // Create a web socket handler and set is as the HTTP server default
   // handler.
   int closeCount = 0;
   WebSocketHandler wsHandler = new WebSocketHandler();
   wsHandler.onOpen = (WebSocketConnection conn) {
     Expect.fail("No connection expected");
   };
   server.defaultRequestHandler = wsHandler.onRequest;
 
@@ skipping 10 matching lines @@
 class WebSocketInfo {
   int messageCount = 0;
 }
 
 
 void testHashCode(int totalConnections) {
   HttpServer server = new HttpServer();
   HttpClient client = new HttpClient();
   Map connections = new Map();
 
-  server.listen("127.0.0.1", 0, totalConnections);
+  server.listen("127.0.0.1", 0, backlog: totalConnections);
 
   void handleMessage(conn, message) {
     var info = connections[conn];
     Expect.isNotNull(info);
     info.messageCount++;
     if (info.messageCount < 10) {
       conn.send(message);
     } else {
       conn.close();
     }
@@ skipping 27 matching lines @@
     WebSocketClientConnection wsconn = new WebSocketClientConnection(conn);
     wsconn.onMessage = (message) => wsconn.send(message);
   }
 }
 
 
 void testW3CInterface(
     int totalConnections, int closeStatus, String closeReason) {
   HttpServer server = new HttpServer();
 
-  server.listen("127.0.0.1", 0, totalConnections);
+  server.listen("127.0.0.1", 0, backlog: totalConnections);
 
   // Create a web socket handler and set is as the HTTP server default
   // handler.
   int closeCount = 0;
   WebSocketHandler wsHandler = new WebSocketHandler();
   wsHandler.onOpen = (WebSocketConnection conn) {
     String messageText = "Hello, world!";
     int messageCount = 0;
     conn.onMessage = (Object message) {
       messageCount++;
@@ skipping 66 matching lines @@
   testMessageLength(126);
   testMessageLength(127);
   testMessageLength(65535);
   testMessageLength(65536);
   testNoUpgrade();
   testUsePOST();
   testHashCode(2);
 
   testW3CInterface(2, 3002, "Got tired");
 }