Move Index and IndexStore implementations into Engine.

pkg/analysis_server/test/index/store/single_source_container.dart

Index: pkg/analysis_server/test/index/store/single_source_container.dart
diff --git a/pkg/analysis_server/test/index/store/single_source_container.dart b/pkg/analysis_server/test/index/store/single_source_container.dart
deleted file mode 100644
index 4968217698834d7cbb02a626417b86ff5c889f17..0000000000000000000000000000000000000000
--- a/pkg/analysis_server/test/index/store/single_source_container.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// 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 test.index.store_single_source_container;
-
-import 'package:analyzer/src/generated/source.dart';
-
-
-/**
- * A [SourceContainer] with a single [Source].
- */
-class SingleSourceContainer implements SourceContainer {
-  final Source _source;
-
-  SingleSourceContainer(this._source);
-
-  @override
-  bool contains(Source source) => source == _source;
-}