Add missing files from previous commit

tests/standalone/io/https_client_socket_reuse_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:async";
+import "dart:io";
+import "dart:uri";
+import "dart:isolate";
+
+// By running tests sequentially, we cover the socket reuse code in HttpClient.
+
+void testGoogleUrls() {
+  int testsStarted = 0;
+  int testsFinished = 0;
+  bool allStarted = false;
+  HttpClient client = new HttpClient();
+
+  Future testUrl(String url) {
+    testsStarted++;
+    var requestUri = Uri.parse(url);
+    return client.getUrl(requestUri)
+        .then((HttpClientRequest request) => request.close())
+        .then((HttpClientResponse response) {
+          Expect.isTrue(response.statusCode < 500);
+          if (requestUri.path.length == 0) {
+            Expect.isTrue(response.statusCode != 404);
+          }
+          return response.reduce(null, (previous, element) => null);
+        })
+        .catchError((error) => Expect.fail("Unexpected IO error: $error"));
+  }
+
+  // TODO(3593): Use a Dart HTTPS server for this test.
+  testUrl('https://www.google.dk')
+    .then((_) => testUrl('https://www.google.dk'))
+    .then((_) => testUrl('https://www.google.dk/#q=foo'))
+    .then((_) => testUrl('https://www.google.dk/#hl=da&q=foo'))
+    .then((_) { client.close(); });
+}
+
+void main() {
+  testGoogleUrls();
+}