py: Allow viper to have type annotations.

Viper functions can now be annotated with the type of their arguments
and return value.  Eg:

@micropython.viper
def f(x:int) -> int:
    return x + 1

1 files changed, 1 insertions, 0 deletions

diff --git a/py/obj.h b/py/obj.h
index 27d947a8f..6fe671972 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -378,6 +378,7 @@ mp_obj_t mp_obj_new_exception_args(const mp_obj_type_t *exc_type, uint n_args, c
 mp_obj_t mp_obj_new_exception_msg(const mp_obj_type_t *exc_type, const char *msg);
 mp_obj_t mp_obj_new_exception_msg_varg(const mp_obj_type_t *exc_type, const char *fmt, ...); // counts args by number of % symbols in fmt, excluding %%; can only handle void* sizes (ie no float/double!)
 mp_obj_t mp_obj_new_fun_bc(uint scope_flags, qstr *args, uint n_pos_args, uint n_kwonly_args, mp_obj_t def_args, mp_obj_t def_kw_args, const byte *code);
+mp_obj_t mp_obj_new_fun_viper(uint n_args, void *fun, mp_uint_t type_sig);
 mp_obj_t mp_obj_new_fun_asm(uint n_args, void *fun);
 mp_obj_t mp_obj_new_gen_wrap(mp_obj_t fun);
 mp_obj_t mp_obj_new_closure(mp_obj_t fun, uint n_closed, const mp_obj_t *closed);