Consolidate rt_make_function_[0123] to rt_make_function_n.
diff --git a/py/runtime.h b/py/runtime.h
index ac53e14..32cb476 100644
--- a/py/runtime.h
+++ b/py/runtime.h
@@ -12,10 +12,8 @@
mp_obj_t rt_unary_op(int op, mp_obj_t arg);
mp_obj_t rt_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs);
mp_obj_t rt_make_function_from_id(int unique_code_id);
-mp_obj_t rt_make_function_0(mp_fun_0_t f);
-mp_obj_t rt_make_function_1(mp_fun_1_t f);
-mp_obj_t rt_make_function_2(mp_fun_2_t f);
-mp_obj_t rt_make_function_var(int n_args_min, mp_fun_var_t f);
+mp_obj_t rt_make_function_n(int n_args, void *fun); // fun must have the correct signature for n_args fixed arguments
+mp_obj_t rt_make_function_var(int n_args_min, mp_fun_var_t fun);
mp_obj_t rt_make_function_var_between(int n_args_min, int n_args_max, mp_fun_var_t fun); // min and max are inclusive
mp_obj_t rt_make_closure_from_id(int unique_code_id, mp_obj_t closure_tuple);
mp_obj_t rt_call_function_0(mp_obj_t fun);