:art: Revert Digit separator for now

diff --git a/ast b/ast
index 810bd99f395edf47635393d771eefd73a34f00e1..d7a7343d85e41a651a8cfdda17f530ca9876c9b4 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit 810bd99f395edf47635393d771eefd73a34f00e1
+Subproject commit d7a7343d85e41a651a8cfdda17f530ca9876c9b4