:art: Update Ast

diff --git a/ast b/ast
index 1b6faf1fa2a5c89eec2fbca785a01f86402faf61..3047b71b37f6f2416d9374da8875a7d17da0ad65 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit 1b6faf1fa2a5c89eec2fbca785a01f86402faf61
+Subproject commit 3047b71b37f6f2416d9374da8875a7d17da0ad65