Move Index and IndexStore implementations into Engine.

pkg/analyzer/lib/src/search/search_engine.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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.src.search_engine;
 
-
-
 ///**
 // * Instances of the class <code>AndSearchPattern</code> implement a search pattern that matches
 // * elements that match all of several other search patterns.
 // */
 //class AndSearchPattern implements SearchPattern {
 //  /**
 //   * The patterns used to determine whether this pattern matches an element.
 //   */
 //  final List<SearchPattern> _patterns;
 //
@@ skipping 1199 matching lines @@
 //
 //  /**
 //   * Pass the given match on to the wrapped listener.
 //   *
 //   * @param match the match to be propagated
 //   */
 //  void propagateMatch(SearchMatch match) {
 //    _baseListener.matchFound(match);
 //  }
 //}