Close(destroy) Socket on user-generated write error.

tests/standalone/io/socket_invalid_arguments_test.dart

Index: tests/standalone/io/socket_invalid_arguments_test.dart
diff --git a/tests/standalone/io/socket_invalid_arguments_test.dart b/tests/standalone/io/socket_invalid_arguments_test.dart
index e928cafd483495591e9d2faee37f8394935d5e6c..803e106714d09e12a4ac001508ae239d5752f7d0 100644
--- a/tests/standalone/io/socket_invalid_arguments_test.dart
+++ b/tests/standalone/io/socket_invalid_arguments_test.dart
@@ -30,20 +30,24 @@ testSocketCreation(host, port) {
 
 testAdd(buffer) {
   asyncStart();
+  asyncStart();
   ServerSocket.bind("127.0.0.1", 0).then((server) {
     server.listen((socket) => socket.destroy());
     Socket.connect("127.0.0.1", server.port).then((socket) {
       int errors = 0;
-      socket.done.catchError((e) { errors++; });
+      socket.done
+        .catchError((e) { errors++; })
+        .then((_) {
+          Expect.equals(1, errors);
+          asyncEnd();
+          server.close();
+        });
       socket.listen(
           (_) { },
           onError: (error) {
             Expect.fail("Error on stream");
           },
           onDone: () {
-            Expect.equals(1, errors);
-            socket.destroy();
-            server.close();
             asyncEnd();
           });
       socket.add(buffer);