Ensure that stack traces are propagated more often in dart:io.

sdk/lib/io/secure_server_socket.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.
 
 part of dart.io;
 
 /**
  * The [SecureServerSocket] is a server socket, providing a stream of high-level
  * [Socket]s.
  *
@@ skipping 257 matching lines @@
         socket: connection,
         requestClientCertificate: requestClientCertificate,
         requireClientCertificate: requireClientCertificate,
         supportedProtocols: supportedProtocols)
     .then((RawSecureSocket secureConnection) {
       if (_closed) {
         secureConnection.close();
       } else {
         _controller.add(secureConnection);
       }
-    }).catchError((e) {
+    }).catchError((e, s) {
       if (!_closed) {
-        _controller.addError(e);
+        _controller.addError(e, s);
       }
     });
   }
 
-  void _onError(e, [StackTrace stackTrace]) {
-    _controller.addError(e, stackTrace);
-  }
-
-  void _onDone() {
-    _controller.close();
-  }
-
   void _onPauseStateChange() {
     if (_controller.isPaused) {
       _subscription.pause();
     } else {
       _subscription.resume();
     }
   }
 
   void _onSubscriptionStateChange() {
     if (_controller.hasListener) {
       _subscription = _socket.listen(_onData,
-                                     onDone: _onDone,
-                                     onError: _onError);
+                                     onError: _controller.addError,
+                                     onDone: _controller.close);
     } else {
       close();
     }
   }
 
-  void set _owner(owner) { (_socket as dynamic)._owner = owner; }
+  void set _owner(owner) {
+    (_socket as dynamic)._owner = owner;
+  }
 }