Rename "pathos" package to "path".

sdk/lib/_internal/dartdoc/lib/dartdoc.dart

 // Copyright (c) 2013, 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
  *
  * This will create a "docs" directory with the docs for your libraries. To
  * create these beautiful docs, dartdoc parses your library and every library
  * it imports (recursively). From each library, it parses all classes and
  * members, finds the associated doc comments and builds crosslinked docs from
  * them.
  */
 library dartdoc;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:isolate';
 import 'dart:json' as json;
 import 'dart:math';
 
-import 'package:pathos/path.dart' as pathos;
+import 'package:path/path.dart' as pathos;
 
 import 'classify.dart';
 import 'markdown.dart' as md;
 import 'universe_serializer.dart';
 
 import 'src/dartdoc/nav.dart';
 import 'src/dartdoc/utils.dart';
 import 'src/export_map.dart';
 import 'src/json_serializer.dart' as json_serializer;
 
@@ skipping 2271 matching lines @@
    return '''
         <div class="mdn">
         $mdnComment
         <div class="mdn-note"><a href="$mdnUrl">from MDN</a></div>
         </div>
         ''';
   }
 
   String toString() => mdnComment;
 }