more progress implementing analysis server code completion

pkg/analysis_server/lib/src/computer/element.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 computer.element;
 
-import 'package:analysis_server/src/constants.dart';
+import 'package:analysis_services/constants.dart';
 import 'package:analyzer/src/generated/element.dart' as engine;
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart' as engine;
 
 
 /**
  * Information about an element.
  */
 class Element {
   static const List<Element> EMPTY_ARRAY = const <Element>[];
@@ skipping 370 matching lines @@
       START_COLUMN: startColumn
     };
   }
 
   @override
   String toString() {
     return 'Location(file=$file; offset=$offset; length=$length; '
         'startLine=$startLine; startColumn=$startColumn)';
   }
 }