:art: Use detailled bison errors

diff --git a/ast b/ast
index be74d89d116cca84210bc9b2c52e3a4f5877997e..00d04d0c2f5bc43ee8697e2e76950b55ffa3ca3f 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit be74d89d116cca84210bc9b2c52e3a4f5877997e
+Subproject commit 00d04d0c2f5bc43ee8697e2e76950b55ffa3ca3f