:bug: Fix typedef parens

diff --git a/ast b/ast
index af1930729d920a525e934068287a17b56b95dccc..b135ffa7488ebe38fbc9cddc054779c83902b91b 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit af1930729d920a525e934068287a17b56b95dccc
+Subproject commit b135ffa7488ebe38fbc9cddc054779c83902b91b