Move Index and IndexStore implementations into Engine.

pkg/analyzer/test/index/store/codec_test.dart

Index: pkg/analyzer/test/index/store/codec_test.dart
diff --git a/pkg/analysis_server/test/index/store/codec_test.dart b/pkg/analyzer/test/index/store/codec_test.dart
similarity index 97%
rename from pkg/analysis_server/test/index/store/codec_test.dart
rename to pkg/analyzer/test/index/store/codec_test.dart
index 5d5262f3484283d08e2c82af5dca3983c4da6e17..9bfcbb529c5bf01219439bdfa0087fd0e8db7b17 100644
--- a/pkg/analysis_server/test/index/store/codec_test.dart
+++ b/pkg/analyzer/test/index/store/codec_test.dart
@@ -2,12 +2,12 @@
 // 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.codec;
+library test.engine.src.index.store.codec;
 
-import 'package:analysis_server/src/index/store/codec.dart';
+import 'package:analyzer/index/index.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
-import 'package:analyzer/src/generated/index.dart';
+import 'package:analyzer/src/index/store/codec.dart';
 import 'package:typed_mock/typed_mock.dart';
 import 'package:unittest/unittest.dart';
 
@@ -150,8 +150,8 @@ class _ElementCodecTest {
 
 @ReflectiveTestCase()
 class _RelationshipCodecTest {
-  RelationshipCodec codec;
   StringCodec stringCodec = new StringCodec();
+  RelationshipCodec codec;
 
   void setUp() {
     codec = new RelationshipCodec(stringCodec);