add a asdl bytes type, so Bytes.s be properly typechecked
diff --git a/Parser/Python.asdl b/Parser/Python.asdl
index dc322dc..6955199 100644
--- a/Parser/Python.asdl
+++ b/Parser/Python.asdl
@@ -1,4 +1,4 @@
--- ASDL's four builtin types are identifier, int, string, object
+-- ASDL's five builtin types are identifier, int, string, bytes, object
module Python
{
@@ -67,7 +67,7 @@
expr? starargs, expr? kwargs)
| Num(object n) -- a number as a PyObject.
| Str(string s) -- need to specify raw, unicode, etc?
- | Bytes(string s)
+ | Bytes(bytes s)
| Ellipsis
-- other literals? bools?