:bug: Fix lexer.c

diff --git a/ast b/ast
index ea32e59773e62149348bc2a6c822e61aaa46474b..8d7ea62306b8ef35567f01c994ec837e2ff2da04 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit ea32e59773e62149348bc2a6c822e61aaa46474b
+Subproject commit 8d7ea62306b8ef35567f01c994ec837e2ff2da04