Add support for Element.docRange to the summary.

pkg/analyzer/lib/src/summary/resynthesize.dart

 // Copyright (c) 2015, 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 summary_resynthesizer;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/element_handle.dart';
 import 'package:analyzer/src/generated/engine.dart';
@@ skipping 321 matching lines @@
   }
 
   /**
    * Build the documentation for the given [element].  Does nothing if
    * [serializedDocumentationComment] is `null`.
    */
   void buildDocumentation(ElementImpl element,
       UnlinkedDocumentationComment serializedDocumentationComment) {
     if (serializedDocumentationComment != null) {
       element.documentationComment = serializedDocumentationComment.text;
+      element.setDocRange(serializedDocumentationComment.offset,
+          serializedDocumentationComment.length);
     }
   }
 
   /**
    * Resynthesize the [ClassElement] corresponding to an enum, along with the
    * associated fields and implicit accessors.
    */
   void buildEnum(UnlinkedEnum serializedEnum) {
     assert(!isCoreLibrary);
     // TODO(paulberry): add offset support (for this element type and others)
@@ skipping 645 matching lines @@
         break;
       }
     }
     resummarizedElements[absoluteUri] = elementMap;
     unitHolder = null;
     prelinkedUnit = null;
     unlinkedUnit = null;
     return entryPoint;
   }
 }