Get rid of all the library tags.

lib/src/list_tree.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 glob.list_tree;
-
 import 'dart:io';
 import 'dart:async';
 
 import 'package:path/path.dart' as p;
 
 import 'ast.dart';
 import 'stream_pool.dart';
 import 'utils.dart';
 
 /// The errno for a file or directory not existing on Mac and Linux.
@@ skipping 394 matching lines @@
 /// a path separator.
 SequenceNode _join(Iterable<AstNode> components) {
   var componentsList = components.toList();
   var nodes = [componentsList.removeAt(0)];
   for (var component in componentsList) {
     nodes.add(new LiteralNode('/'));
     nodes.add(component);
   }
   return new SequenceNode(nodes);
 }