Fix hints and clean-up obsolete comment syntax (TBR)

pkg/analysis_server/lib/src/domain_analysis.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.
 
 import 'dart:async';
 import 'dart:core';
 
 import 'package:analysis_server/plugin/analysis/analysis_domain.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/computer/computer_hover.dart';
 import 'package:analysis_server/src/constants.dart';
-import 'package:analysis_server/src/context_manager.dart';
 import 'package:analysis_server/src/domain_abstract.dart';
 import 'package:analysis_server/src/domains/analysis/navigation.dart';
 import 'package:analysis_server/src/domains/analysis/navigation_dart.dart';
 import 'package:analysis_server/src/operation/operation_analysis.dart'
     show NavigationOperation, OccurrencesOperation;
 import 'package:analysis_server/src/plugin/plugin_manager.dart';
 import 'package:analysis_server/src/plugin/request_converter.dart';
 import 'package:analysis_server/src/plugin/result_merger.dart';
 import 'package:analysis_server/src/protocol/protocol_internal.dart';
 import 'package:analysis_server/src/protocol_server.dart';
@@ skipping 423 matching lines @@
     String file = source.fullName;
     if (server.hasAnalysisSubscription(service, file)) {
       if (service == AnalysisService.NAVIGATION) {
         server.scheduleOperation(new NavigationOperation(context, source));
       }
       if (service == AnalysisService.OCCURRENCES) {
         server.scheduleOperation(new OccurrencesOperation(context, source));
       }
     }
   }
-
-  void _subscribeForContext(engine.AnalysisContext context) {
-    for (ResultDescriptor descriptor in controllers.keys) {
-      context.onResultChanged(descriptor).listen((result) {
-        StreamController<engine.ResultChangedEvent> controller =
-            controllers[result.descriptor];
-        if (controller != null) {
-          controller.add(result);
-        }
-      });
-    }
-  }
 }