Index and search of import prefixes.

pkg/analysis_server/lib/src/search/search_domain.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 search.domain;
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart' as protocol;
 import 'package:analysis_server/src/search/element_references.dart';
@@ skipping 27 matching lines @@
   SearchDomainHandler(this.server) {
     searchEngine = server.searchEngine;
   }
 
   protocol.Response findElementReferences(protocol.Request request) {
     var params = new protocol.SearchFindElementReferencesParams.fromRequest(request);
     // prepare elements
     List<Element> elements = server.getElementsAtOffset(params.file,
         params.offset);
     elements = elements.map((Element element) {
+      if (element is ImportElement) {
+        return element.prefix;
+      }
       if (element is FieldFormalParameterElement) {
         return element.field;
       }
       if (element is PropertyAccessorElement) {
         return element.variable;
       }
       return element;
     }).toList();
     // schedule search
     String searchId = (_nextSearchId++).toString();
@@ skipping 109 matching lines @@
   void _sendSearchNotification(String searchId, bool isLast,
       Iterable<protocol.SearchResult> results) {
     server.sendNotification(new protocol.SearchResultsParams(searchId,
         results.toList(), isLast).toNotification());
   }
 
   static protocol.SearchResult toResult(SearchMatch match) {
     return new protocol.SearchResult.fromMatch(match);
   }
 }