Index and search of import prefixes.

pkg/analysis_server/lib/src/services/index/index_contributor.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 services.src.index.index_contributor;
 
 import 'dart:collection' show Queue;
 
 import 'package:analysis_server/src/services/correction/namespace.dart';
 import 'package:analysis_server/src/services/index/index.dart';
@@ skipping 687 matching lines @@
     if (element is ClassElement ||
         element is FunctionElement ||
         element is FunctionTypeAliasElement ||
         element is LabelElement ||
         element is MethodElement ||
         element is PropertyAccessorElement ||
         element is PropertyInducingElement ||
         element is TypeParameterElement) {
       recordRelationship(element, IndexConstants.IS_REFERENCED_BY, location);
     } else if (element is PrefixElement) {
+      recordRelationship(element, IndexConstants.IS_REFERENCED_BY, location);
       _recordImportElementReferenceWithPrefix(node);
     } else if (element is ParameterElement || element is LocalVariableElement) {
       bool inGetterContext = node.inGetterContext();
       bool inSetterContext = node.inSetterContext();
       if (inGetterContext && inSetterContext) {
         recordRelationship(
             element,
             IndexConstants.IS_READ_WRITTEN_BY,
             location);
       } else if (inGetterContext) {
@@ skipping 315 matching lines @@
   }
 
   /**
    * @return `true` if given "node" is part of [PrefixedIdentifier] "prefix.node".
    */
   static bool _isIdentifierInPrefixedIdentifier(SimpleIdentifier node) {
     AstNode parent = node.parent;
     return parent is PrefixedIdentifier && parent.identifier == node;
   }
 }