Return RequestErrorCode.NO_INDEX_GENERATED for search/refactoring requests.

pkg/analysis_server/lib/src/protocol.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 protocol;
 
 import 'dart:collection';
 import 'dart:convert';
 
 part 'generated_protocol.dart';
@@ skipping 779 matching lines @@
   /**
    * Initialize a newly created instance to represent an error condition caused
    * by a malformed request.
    */
   Response.invalidRequestFormat()
       : this(
           '',
           error: new RequestError(RequestErrorCode.INVALID_REQUEST, 'Invalid request'));
 
   /**
+   * Initialize a newly created instance to represent an error condition caused
+   * by a request that requires an index, but indexing is disabled.
+   */
+  Response.noIndexGenerated(Request request)
+      : this(
+          request.id,
+          error: new RequestError(
+              RequestErrorCode.NO_INDEX_GENERATED,
+              'Indexing is disabled'));
+
+  /**
    * Initialize a newly created instance to represent the
    * REFACTORING_REQUEST_CANCELLED error condition.
    */
   Response.refactoringRequestCancelled(Request request)
       : this(
           request.id,
           error: new RequestError(
               RequestErrorCode.REFACTORING_REQUEST_CANCELLED,
               'The `edit.getRefactoring` request was cancelled.'));
 
@@ skipping 112 matching lines @@
     hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
     hash = hash ^ (hash >> 11);
     return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
   }
 
   static int hash2(a, b) => finish(combine(combine(0, a), b));
 
   static int hash4(a, b, c, d) =>
       finish(combine(combine(combine(combine(0, a), b), c), d));
 }