Issue #1066: implement PEP 3109, 2/3 of PEP 3134.
diff --git a/Parser/Python.asdl b/Parser/Python.asdl
index ea9f502..8686709 100644
--- a/Parser/Python.asdl
+++ b/Parser/Python.asdl
@@ -30,8 +30,7 @@
 	      | If(expr test, stmt* body, stmt* orelse)
 	      | With(expr context_expr, expr? optional_vars, stmt* body)
 
-	      -- 'type' is a bad name
-	      | Raise(expr? type, expr? inst, expr? tback)
+	      | Raise(expr? exc, expr? cause)
 	      | TryExcept(stmt* body, excepthandler* handlers, stmt* orelse)
 	      | TryFinally(stmt* body, stmt* finalbody)
 	      | Assert(expr test, expr? msg)