Move Index and IndexStore implementations into Engine.

pkg/analyzer/lib/src/index/store/memory_node_manager.dart

Index: pkg/analyzer/lib/src/index/store/memory_node_manager.dart
diff --git a/pkg/analysis_server/test/index/store/memory_node_manager.dart b/pkg/analyzer/lib/src/index/store/memory_node_manager.dart
similarity index 92%
rename from pkg/analysis_server/test/index/store/memory_node_manager.dart
rename to pkg/analyzer/lib/src/index/store/memory_node_manager.dart
index 3a9209e8d9b9d716d793547eabce3f58bd7344dc..2d9baee456311ace27f5ed36854f7d11cd6e73e1 100644
--- a/pkg/analysis_server/test/index/store/memory_node_manager.dart
+++ b/pkg/analyzer/lib/src/index/store/memory_node_manager.dart
@@ -2,24 +2,25 @@
 // 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 test.index.store_memory_node_manager;
+library engine.src.index.store_memory_node_manager;
 
 import 'dart:async';
 import 'dart:collection';
 
-import 'package:analysis_server/src/index/store/codec.dart';
-import 'package:analysis_server/src/index/store/split_store.dart';
 import 'package:analyzer/src/generated/engine.dart';
+import 'package:analyzer/src/index/store/codec.dart';
+import 'package:analyzer/src/index/store/split_store.dart';
 
 
 class MemoryNodeManager implements NodeManager {
+  StringCodec _stringCodec = new StringCodec();
   ContextCodec _contextCodec = new ContextCodec();
   ElementCodec _elementCodec;
+  RelationshipCodec _relationshipCodec;
+
   int _locationCount = 0;
   final Map<String, int> _nodeLocationCounts = new HashMap<String, int>();
   final Map<String, IndexNode> _nodes = new HashMap<String, IndexNode>();
-  RelationshipCodec _relationshipCodec;
-  StringCodec _stringCodec = new StringCodec();
 
   MemoryNodeManager() {
     _elementCodec = new ElementCodec(_stringCodec);