:bug: Fix missing prim_cpy case

diff --git a/ast b/ast
index 148f0465b52b0e326cbc70779e56ad6670c85502..8464a8f3b73c022f8af4a0a317c3affddaf4fceb 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit 148f0465b52b0e326cbc70779e56ad6670c85502
+Subproject commit 8464a8f3b73c022f8af4a0a317c3affddaf4fceb