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

pkg/analysis_server/lib/src/services/search/search_engine_internal.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 services.src.search.search_engine;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/provisional/index/index_core.dart';
 import 'package:analysis_server/src/services/correction/source_range.dart';
@@ skipping 101 matching lines @@
     return requestor.merge();
   }
 
   @override
   Future<List<SearchMatch>> searchTopLevelDeclarations(String pattern) {
     RegExp regExp = new RegExp(pattern);
     List<Element> elements =
         _index.getTopLevelDeclarations((String name) => regExp.hasMatch(name));
     List<SearchMatch> matches = <SearchMatch>[];
     for (Element element in elements) {
-      matches.add(new SearchMatch(MatchKind.DECLARATION, element,
-          rangeElementName(element), true, false));
+      matches.add(new SearchMatch(
+          element.context,
+          element.library.source.uri.toString(),
+          element.source.uri.toString(),
+          MatchKind.DECLARATION,
+          rangeElementName(element),
+          true,
+          false));
     }
     return new Future.value(matches);
   }
 
   Future<List<SearchMatch>> _searchReferences(Element element) {
     _Requestor requestor = new _Requestor(_index);
     requestor.addElement(
         element, IndexConstants.IS_REFERENCED_BY, MatchKind.REFERENCE);
     return requestor.merge();
   }
@@ skipping 89 matching lines @@
   _Requestor(this.index);
 
   void add(IndexableObject indexable, RelationshipImpl relationship,
       MatchKind kind) {
     Future relationsFuture = index.getRelationships(indexable, relationship);
     Future matchesFuture = relationsFuture.then((List<LocationImpl> locations) {
       List<SearchMatch> matches = <SearchMatch>[];
       for (LocationImpl location in locations) {
         IndexableObject indexable = location.indexable;
         if (indexable is IndexableElement) {
+          Element element = indexable.element;
           matches.add(new SearchMatch(
+              element.context,
+              element.library.source.uri.toString(),
+              element.source.uri.toString(),
               kind,
-              indexable.element,
               new SourceRange(location.offset, location.length),
               location.isResolved,
               location.isQualified));
         }
       }
       return matches;
     });
     futures.add(matchesFuture);
   }
 
   void addElement(
       Element element, RelationshipImpl relationship, MatchKind kind) {
     IndexableElement indexable = new IndexableElement(element);
     add(indexable, relationship, kind);
   }
 
   Future<List<SearchMatch>> merge() {
     return Future.wait(futures).then((List<List<SearchMatch>> matchesList) {
       return matchesList.expand((matches) => matches).toList();
     });
   }
 }