Issue 21801. Index redirecting constructor invocations.

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 644 matching lines @@
     return super.visitPostfixExpression(node);
   }
 
   @override
   Object visitPrefixExpression(PrefixExpression node) {
     _recordOperatorReference(node.operator, node.bestElement);
     return super.visitPrefixExpression(node);
   }
 
   @override
+  Object
+      visitRedirectingConstructorInvocation(RedirectingConstructorInvocation node) {
+    ConstructorElement element = node.staticElement;
+    Location location;
+    if (node.constructorName != null) {
+      int start = node.period.offset;
+      int end = node.constructorName.end;
+      location = _createLocationForOffset(start, end - start);
+    } else {
+      int start = node.keyword.end;
+      location = _createLocationForOffset(start, 0);
+    }
+    recordRelationship(element, IndexConstants.IS_REFERENCED_BY, location);
+    return super.visitRedirectingConstructorInvocation(node);
+  }
+
+  @override
   Object visitSimpleIdentifier(SimpleIdentifier node) {
     Element nameElement = new NameElement(node.name);
     Location location = _createLocationForNode(node);
     // name in declaration
     if (node.inDeclarationContext()) {
       recordRelationship(
           nameElement,
           IndexConstants.NAME_IS_DEFINED_BY,
           location);
       return null;
@@ skipping 370 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;
   }
 }