:art: Check duplicated traits

diff --git a/ast b/ast
index 1f0dc4b7753bb88bc55e161c144f60a8a0c4791e..b340a23a9f3902e3a7633fcddf1bd22d8d03814e 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit 1f0dc4b7753bb88bc55e161c144f60a8a0c4791e
+Subproject commit b340a23a9f3902e3a7633fcddf1bd22d8d03814e