Make SearchMatch usable for the new index - remove the element field.

pkg/analysis_server/lib/src/search/element_references.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.element_references;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/collections.dart';
 import 'package:analysis_server/src/protocol_server.dart'
@@ skipping 73 matching lines @@
   Future<Iterable<Element>> _getRefElements(Element element) {
     if (element is ClassMemberElement) {
       return getHierarchyMembers(searchEngine, element);
     }
     return new Future.value([element]);
   }
 
   SearchResult _newDeclarationResult(Element refElement) {
     int nameOffset = refElement.nameOffset;
     int nameLength = refElement.nameLength;
-    SearchMatch searchMatch = new SearchMatch(MatchKind.DECLARATION, refElement,
-        new SourceRange(nameOffset, nameLength), true, false);
+    SearchMatch searchMatch = new SearchMatch(
+        refElement.context,
+        refElement.library.source.uri.toString(),
+        refElement.source.uri.toString(),
+        MatchKind.DECLARATION,
+        new SourceRange(nameOffset, nameLength),
+        true,
+        false);
     return newSearchResult_fromMatch(searchMatch);
   }
 
   static SearchResult toResult(SearchMatch match) {
     return newSearchResult_fromMatch(match);
   }
 
   static bool _isDeclarationInteresting(Element element) {
     if (element is LabelElement) {
       return true;
@@ skipping 36 matching lines @@
    * Adds a [Future] or an [E] value to results.
    */
   void add(value) {
     if (value is Future) {
       _futures.add(value);
     } else {
       _futures.add(new Future.value(<E>[value]));
     }
   }
 }