Remove AsyncError with Expando.

sdk/lib/io/http_parser.dart

Index: sdk/lib/io/http_parser.dart
diff --git a/sdk/lib/io/http_parser.dart b/sdk/lib/io/http_parser.dart
index 9a2f6b9bfdc0ed40b0ef93a7e71c6d95cd7b61bd..b7a70f541d09635e250bcb6078e02e2d7d8d6eda 100644
--- a/sdk/lib/io/http_parser.dart
+++ b/sdk/lib/io/http_parser.dart
@@ -123,7 +123,7 @@ class _HttpDetachedIncoming extends Stream<List<int>> {
   }
 
   StreamSubscription<List<int>> listen(void onData(List<int> event),
-                                       {void onError(AsyncError error),
+                                       {void onError(error),
                                         void onDone(),
                                         bool unsubscribeOnError}) {
     return controller.stream.listen(
@@ -216,7 +216,7 @@ class _HttpParser
 
 
   StreamSubscription<_HttpIncoming> listen(void onData(_HttpIncoming event),
-                                           {void onError(AsyncError error),
+                                           {void onError(error),
                                             void onDone(),
                                             bool unsubscribeOnError}) {
     return _controller.stream.listen(onData,
@@ -681,7 +681,7 @@ class _HttpParser
       }
     } catch (e, s) {
       _state = _State.FAILURE;
-      error(new AsyncError(e, s));
+      error(e, s);
     }
 
     _parserCalled = false;
@@ -713,9 +713,8 @@ class _HttpParser
           !(_state == _State.START && !_requestParser) &&
           !(_state == _State.BODY && !_chunked && _transferLength == -1)) {
         _bodyController.addError(
-            new AsyncError(
-                new HttpParserException(
-                    "Connection closed while receiving data")));
+              new HttpParserException(
+                  "Connection closed while receiving data"));
       }
       _closeIncoming();
       _controller.close();
@@ -724,10 +723,8 @@ class _HttpParser
     // If the connection is idle the HTTP stream is closed.
     if (_state == _State.START) {
       if (!_requestParser) {
-        error(
-            new AsyncError(
-                new HttpParserException(
-                    "Connection closed before full header was received")));
+        error(new HttpParserException(
+                    "Connection closed before full header was received"));
       }
       _controller.close();
       return;
@@ -742,10 +739,8 @@ class _HttpParser
       _state = _State.FAILURE;
       // Report the error through the error callback if any. Otherwise
       // throw the error.
-      error(
-          new AsyncError(
-              new HttpParserException(
-                  "Connection closed before full header was received")));
+      error(new HttpParserException(
+                  "Connection closed before full header was received"));
       _controller.close();
       return;
     }
@@ -756,10 +751,8 @@ class _HttpParser
       _state = _State.FAILURE;
       // Report the error through the error callback if any. Otherwise
       // throw the error.
-      error(
-          new AsyncError(
-              new HttpParserException(
-                  "Connection closed before full body was received")));
+      error(new HttpParserException(
+                  "Connection closed before full body was received"));
     }
     _controller.close();
   }
@@ -931,10 +924,10 @@ class _HttpParser
     }
   }
 
-  void error(error) {
+  void error(error, [stackTrace]) {
     if (_socketSubscription != null) _socketSubscription.cancel();
     _state = _State.FAILURE;
-    _controller.addError(error);
+    _controller.addError(error, stackTrace);
     _controller.close();
   }