Send any logError() information to the IDE.

pkg/analysis_server/lib/src/domain_completion.dart

 // Copyright (c) 2014, 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.
 
 library domain.completion;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
@@ skipping 124 matching lines @@
       try {
         String requestName = request.method;
         if (requestName == COMPLETION_GET_SUGGESTIONS) {
           return processRequest(request);
         }
       } on RequestFailure catch (exception) {
         return exception.response;
       }
       return null;
     }, onError: (exception, stackTrace) {
-      server.sendServerErrorNotification(exception, stackTrace);
+      server.sendServerErrorNotification(
+          'Failed to handle completion domain request: ${request.toJson()}',
+          exception,
+          stackTrace);
     });
   }
 
   /**
    * If the set the priority files has changed, then pre-cache completion
    * information related to the first priority file.
    */
   void priorityChanged(PriorityChangeEvent event) {
     Source source = event.firstSource;
     CompletionPerformance performance = new CompletionPerformance();
@@ skipping 125 matching lines @@
     if (_sourcesChangedSubscription != null) {
       _sourcesChangedSubscription.cancel();
       _sourcesChangedSubscription = null;
     }
     if (_manager != null) {
       _manager.dispose();
       _manager = null;
     }
   }
 }