Give inferred closure args their own type
diff --git a/src/gen/fold.rs b/src/gen/fold.rs
index c07f6bf..9b69bc3 100644
--- a/src/gen/fold.rs
+++ b/src/gen/fold.rs
@@ -1389,6 +1389,11 @@
                 _visitor.fold_arg_captured(_binding_0),
             )
         }
+        Inferred(_binding_0, ) => {
+            Inferred (
+                _visitor.fold_pat(_binding_0),
+            )
+        }
         Ignored(_binding_0, ) => {
             Ignored (
                 _visitor.fold_type(_binding_0),