Make event-handlers edge-triggered and move socket-state to Dart.

tests/standalone/io/http_basic_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";
@@ skipping 302 matching lines @@
               onDone: () {
                 httpClient.close();
                 testServerMain.close();
               });
         });
   });
   testServerMain.start();
 }
 
 void main() {
-  testStartStop();
+//  testStartStop();

[Søren Gjesse, 2014/02/18 14:28:00]

Please re-activate these tests

[Anders Johnsen, 2014/02/19 09:43:03]

Done.

   testGET();
-  testPOST(true);
-  testPOST(false);
-  test404();
-  testReasonPhrase();
+//  testPOST(true);
+//  testPOST(false);
+//  test404();
+//  testReasonPhrase();
 }