Move Index and IndexStore implementations into Engine.

pkg/analyzer/lib/src/index/store/separate_file_manager.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 index.store.separate_file_mananer;
+library engine.src.index.store.separate_file_mananer;
 
 import 'dart:async';
 import 'dart:io';
 
-import 'package:analysis_server/src/index/store/split_store.dart';
+import 'package:analyzer/src/index/store/split_store.dart';
 import 'package:path/path.dart' as pathos;
 
 
 /**
  * An implementation of [FileManager] that keeps each file in a separate file
  * system file.
  */
 class SeparateFileManager implements FileManager {
   final Directory _directory;
 
@@ skipping 28 matching lines @@
 
   @override
   Future write(String name, List<int> bytes) {
     return _getFile(name).writeAsBytes(bytes);
   }
 
   File _getFile(String name) {
     String path = pathos.join(_directory.path, name);
     return new File(path);
   }
-}
+}