:art: clean_and_improve ast

diff --git a/ast b/ast
index 838b02ef57aece6809b723d2770a817d4213afef..eca382f0b4732c32287751dcec736b16bcac446e 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit 838b02ef57aece6809b723d2770a817d4213afef
+Subproject commit eca382f0b4732c32287751dcec736b16bcac446e