Add missing files from previous commit

tests/standalone/io/http_detach_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 "dart:io";
+import "dart:isolate";
+
+void testServerDetachSocket() {
+  HttpServer.bind().then((server) {
+    server.listen((request) {
+      var response = request.response;
+      response.contentLength = 0;
+      response.detachSocket().then((socket) {
+        Expect.isNotNull(socket);
+        var body = new StringBuffer();
+        socket.listen(
+          (data) => body.add(new String.fromCharCodes(data)),
+          onDone: () => Expect.equals("Some data", body.toString()));
+        socket.addString("Test!");
+        socket.close();
+      });
+      server.close();
+    });
+
+    Socket.connect("127.0.0.1", server.port).then((socket) {
+      socket.addString("GET / HTTP/1.1\r\n"
+                       "content-length: 0\r\n\r\n"
+                       "Some data");
+      var body = new StringBuffer();
+      socket.listen(
+        (data) => body.add(new String.fromCharCodes(data)),
+        onDone: () {
+          Expect.equals("HTTP/1.1 200 OK\r\n"
+                        "content-length: 0\r\n"
+                        "\r\n"
+                        "Test!",
+                        body.toString());
+          socket.close();
+        });
+    });
+  });
+}
+
+void testBadServerDetachSocket() {
+  HttpServer.bind().then((server) {
+    server.listen((request) {
+      var response = request.response;
+      response.contentLength = 0;
+      response.close();
+      Expect.throws(response.detachSocket);
+      server.close();
+    });
+
+    Socket.connect("127.0.0.1", server.port).then((socket) {
+      socket.addString("GET / HTTP/1.1\r\n"
+                       "content-length: 0\r\n\r\n");
+      socket.listen((_) {}, onDone: () {
+          socket.close();
+        });
+    });
+  });
+}
+
+void testClientDetachSocket() {
+  ServerSocket.bind().then((server) {
+    server.listen((socket) {
+      socket.addString("HTTP/1.1 200 OK\r\n"
+                       "\r\n"
+                       "Test!");
+      var body = new StringBuffer();
+      socket.listen(
+        (data) => body.add(new String.fromCharCodes(data)),
+        onDone: () {
+          Expect.equals("GET / HTTP/1.1\r\n"
+                        "content-length: 0\r\n"
+                        "host: 127.0.0.1:${server.port}\r\n\r\n"
+                        "Some data",
+                        body.toString());
+          socket.close();
+        });
+      server.close();
+    });
+
+    var client = new HttpClient();
+    client.get("127.0.0.1", server.port, "/")
+      .then((request) => request.close())
+      .then((response) {
+        response.detachSocket().then((socket) {
+          var body = new StringBuffer();
+          socket.listen(
+            (data) => body.add(new String.fromCharCodes(data)),
+            onDone: () {
+              Expect.equals("Test!",
+                            body.toString());
+              client.close();
+            });
+          socket.addString("Some data");
+          socket.close();
+        });
+      });
+  });
+}
+
+void main() {
+  testServerDetachSocket();
+  testBadServerDetachSocket();
+  testClientDetachSocket();
+}