Support literals in const generics without a block
diff --git a/src/gen/fold.rs b/src/gen/fold.rs
index ed7db7c..08d0b41 100644
--- a/src/gen/fold.rs
+++ b/src/gen/fold.rs
@@ -1486,7 +1486,7 @@
         }
         Const(_binding_0, ) => {
             Const (
-                full!(_visitor.fold_expr_block(_binding_0)),
+                _visitor.fold_expr(_binding_0),
             )
         }
     }