fix #159, static renames for caller/arguments

test/codegen/names.dart

 // Copyright (c) 2015, 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.
 
 var exports = 42;
 
 class Foo {
   _foo() => 123;
 }
 
 _foo() => 456;
 
 class Frame {
   final List arguments;
   Frame.caller(this.arguments);
   static callee() => null;
 }
 
+
+class Frame2 {
+  static int caller = 100;
+  static int arguments = 200;
+}
+
 main() {
   print(exports);
   print(new Foo()._foo());
   print(_foo());
   print(new Frame.caller([1,2,3]));
   var eval = Frame.callee;
   print(eval);
+  print(Frame2.caller + Frame2.arguments);
 }