Reorganize dartdoc to new package layout.

utils/compiler/build_helper.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.
 
 #import('dart:io');
 #import('dart:uri');
 
 #import('../../lib/compiler/implementation/util/uri_extras.dart');
 #import('../../lib/compiler/implementation/filenames.dart');
 
@@ skipping 23 matching lines @@
 
   List<String> developerScript = buildScript(
       'dart2js-developer',
       dartUri, dartVmUri,
       'lib/compiler/implementation/dart2js.dart', ' --enable_checked_mode');
   writeScript(developerUri, developerScript);
 
   List<String> dartdocScript = buildScript(
       'dartdoc',
       dartUri, dartVmUri,
-      'pkg/dartdoc/dartdoc.dart', '');
+      'pkg/dartdoc/bin/dartdoc.dart', '');
   writeScript(dartdocUri, dartdocScript);
 }
 
 writeScript(Uri uri, List<String> scripts) {
   String unixScript = scripts[0];
   String batFile = scripts[1];
   var f = new File(uriPathToNative(uri.path));
   var stream = f.openSync(FileMode.WRITE);
   try {
     stream.writeStringSync(unixScript);
@@ skipping 68 matching lines @@
 set SCRIPTPATH=%~dp0
 
 REM Does the path have a trailing slash? If so, remove it.
 if %SCRIPTPATH:~-1%==\ set SCRIPTPATH=%SCRIPTPATH:~0,-1%
 
 set arguments=%*
 
 "%SCRIPTPATH%\dart.exe"$options "%SCRIPTPATH%$pathWin" %arguments%
 '''.replaceAll('\n', '\r\n')];
 }