fix probe

Author: Ekdohibs

middle_end/flambda2/from_lambda/closure_conversion.ml

@@ -1861,7 +1861,7 @@ let close_one_function acc ~code_id ~external_env ~by_function_slot
                  (Alloc_mode.For_types.unknown ()))
             Debuginfo.none ~inlined:Inlined_attribute.Default_inlined
             ~inlining_state:(Inlining_state.default ~round:0)
-            ~probe_name:None ~position:Normal
+            ~probe:None ~position:Normal
             ~relative_history:
               (Env.relative_history_from_scoped ~loc external_env)
             ~region:my_region