Make server use the common protocol classes

pkg/analysis_server/lib/src/status/get_handler2.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:convert';
 import 'dart:io';
 import 'dart:math';
 
 import 'package:analysis_server/protocol/protocol.dart';
-import 'package:analysis_server/protocol/protocol_generated.dart' hide Element;
+import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/domain_completion.dart';
 import 'package:analysis_server/src/domain_diagnostic.dart';
 import 'package:analysis_server/src/domain_execution.dart';
 import 'package:analysis_server/src/services/completion/completion_performance.dart';
 import 'package:analysis_server/src/socket_server.dart';
 import 'package:analysis_server/src/status/get_handler.dart';
 import 'package:analyzer/exception/exception.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
@@ skipping 1229 matching lines @@
       String path, Map<String, String> params, String innerHtml,
       [bool hasError = false]) {
     Uri uri = params.isEmpty
         ? new Uri(path: path)
         : new Uri(path: path, queryParameters: params);
     String href = HTML_ESCAPE.convert(uri.toString());
     String classAttribute = hasError ? ' class="error"' : '';
     return '<a href="$href" $classAttribute>$innerHtml</a>';
   }
 }