Clean up leg.dart.

dart/lib/compiler/implementation/js/js.dart

Index: dart/lib/compiler/implementation/js/js.dart
diff --git a/dart/lib/compiler/implementation/js/js.dart b/dart/lib/compiler/implementation/js/js.dart
index 433352ff4ae1ad5ea75aa724b4392f7231e2b84f..b7df642c7bf24a4f009d3b67624644534a590eed 100644
--- a/dart/lib/compiler/implementation/js/js.dart
+++ b/dart/lib/compiler/implementation/js/js.dart
@@ -2,14 +2,14 @@
 // 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('js');
+library js;
 
-#import("precedence.dart");
-#import("../util/characters.dart", prefix: "charCodes");
+import 'precedence.dart';
+import '../util/characters.dart' as charCodes;
 
 // TODO(floitsch): remove this dependency (currently necessary for the
 // CodeBuffer).
-#import('../leg.dart', prefix: "leg");
+import '../dart2jslib.dart' as leg;
 
-#source('nodes.dart');
-#source('printer.dart');
+part 'nodes.dart';
+part 'printer.dart';