Fix dartdoc editor integration.

pkg/dartdoc/lib/dartdoc.dart

 // Copyright (c) 2012, 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.
 
 /**
  * To generate docs for a library, run this script with the path to an
  * entrypoint .dart file, like:
  *
  *     $ dart dartdoc.dart foo.dart
  *
@@ skipping 214 matching lines @@
 
   int _totalLibraries = 0;
   int _totalTypes = 0;
   int _totalMembers = 0;
 
   int get totalLibraries => _totalLibraries;
   int get totalTypes => _totalTypes;
   int get totalMembers => _totalMembers;
 
   Dartdoc()
-      : _comments = new CommentMap(),
-        dartdocPath = scriptDir {
+      : _comments = new CommentMap() {
     // Patch in support for [:...:]-style code to the markdown parser.
     // TODO(rnystrom): Markdown already has syntax for this. Phase this out?
     md.InlineParser.syntaxes.insertRange(0, 1,
         new md.CodeSyntax(@'\[\:((?:.|\n)*?)\:\]'));
 
     md.setImplicitLinkResolver((name) => resolveNameReference(name,
             currentLibrary: _currentLibrary, currentType: _currentType,
             currentMember: _currentMember));
   }
 
@@ skipping 1321 matching lines @@
 
 /**
  * Used to report an unexpected error in the DartDoc tool or the
  * underlying data
  */
 class InternalError {
   final String message;
   const InternalError(this.message);
   String toString() => "InternalError: '$message'";
 }