Use IndexContributor(s) in LocalIndex.

pkg/analysis_server/lib/analysis/index_core.dart

 // Copyright (c) 2015, 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 analysis_server.analysis.index.index_core;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analysis_server/src/services/index/index.dart';
@@ skipping 97 matching lines @@
   }
 }
 
 /**
  * An object used to add relationships to the index.
  *
  * Clients are expected to subtype this class when implementing plugins.
  */
 abstract class IndexContributor {
   /**
-   * Contribute relationships to the given index [store] as a result of
-   * analyzing the given [source] in the given [context].
+   * Contribute relationships existing in the given [object] to the given
+   * index [store] in the given [context].
    */
-  void contributeTo(IndexStore store, AnalysisContext context, Source source);
+  void contributeTo(IndexStore store, AnalysisContext context, Object object);
 }
 
 // A sketch of what the driver routine might look like:
 //
 //void buildIndexForSource(AnalysisContext context, Source source) {
 //  IndexStoreImpl store;
 //  store.aboutToIndex(context, source);
 //  try {
 //    for (IndexContributor contributor in contributors) {
 //      contributor.contributeTo(store, context, source);
@@ skipping 133 matching lines @@
  */
 abstract class Relationship {
   /**
    * Return a relationship that has the given [identifier]. If the relationship
    * has already been created, then it will be returned, otherwise a new
    * relationship will be created
    */
   factory Relationship(String identifier) =>
       RelationshipImpl.getRelationship(identifier);
 }