Change some parts of the core API to use mp_uint_t instead of uint/int.
Addressing issue #50, still some way to go yet.
diff --git a/py/objint.h b/py/objint.h
index b4f8c9a..50f36df 100644
--- a/py/objint.h
+++ b/py/objint.h
@@ -40,6 +40,6 @@
int base, const char *prefix, char base_char, char comma);
mp_int_t mp_obj_int_hash(mp_obj_t self_in);
bool mp_obj_int_is_positive(mp_obj_t self_in);
-mp_obj_t mp_obj_int_unary_op(int op, mp_obj_t o_in);
-mp_obj_t mp_obj_int_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in);
-mp_obj_t mp_obj_int_binary_op_extra_cases(int op, mp_obj_t lhs_in, mp_obj_t rhs_in);
+mp_obj_t mp_obj_int_unary_op(mp_uint_t op, mp_obj_t o_in);
+mp_obj_t mp_obj_int_binary_op(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in);
+mp_obj_t mp_obj_int_binary_op_extra_cases(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in);