Move Index and IndexStore implementations into Engine.

pkg/analyzer/test/index/store/collection_test.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 test.index.store.collection;
+library test.engine.src.index.store.collection;
 
-import 'package:analysis_server/src/index/store/collection.dart';
+import 'package:analyzer/src/index/store/collection.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../reflective_tests.dart';
 
 
 main() {
   groupSep = ' | ';
   group('IntArrayToIntMap', () {
     runReflectiveTests(_IntArrayToIntMapTest);
   });
@@ skipping 56 matching lines @@
     expect(map.length, 1);
     map.add(1, 11);
     map.add(1, 12);
     expect(map.length, 1);
     map.add(2, 20);
     expect(map.length, 2);
     map.add(2, 21);
     expect(map.length, 2);
   }
 }