Simplify names for argcheck.c / arg parsing.
diff --git a/py/runtime.h b/py/runtime.h
index 5ce4bbc..0ec1208 100644
--- a/py/runtime.h
+++ b/py/runtime.h
@@ -5,31 +5,31 @@
 } mp_vm_return_kind_t;
 
 typedef enum {
-    MP_ARG_PARSE_BOOL      = 0x001,
-    MP_ARG_PARSE_INT       = 0x002,
-    MP_ARG_PARSE_OBJ       = 0x003,
-    MP_ARG_PARSE_KIND_MASK = 0x0ff,
-    MP_ARG_PARSE_REQUIRED  = 0x100,
-    MP_ARG_PARSE_KW_ONLY   = 0x200,
-} mp_arg_parse_flag_t;
+    MP_ARG_BOOL      = 0x001,
+    MP_ARG_INT       = 0x002,
+    MP_ARG_OBJ       = 0x003,
+    MP_ARG_KIND_MASK = 0x0ff,
+    MP_ARG_REQUIRED  = 0x100,
+    MP_ARG_KW_ONLY   = 0x200,
+} mp_arg_flag_t;
 
-typedef union _mp_arg_parse_val_t {
+typedef union _mp_arg_val_t {
     bool u_bool;
     machine_int_t u_int;
     mp_obj_t u_obj;
-} mp_arg_parse_val_t;
+} mp_arg_val_t;
 
-typedef struct _mp_arg_parse_t {
+typedef struct _mp_arg_t {
     qstr qstr;
     machine_uint_t flags;
-    mp_arg_parse_val_t defval;
-} mp_arg_parse_t;
+    mp_arg_val_t defval;
+} mp_arg_t;
 
 void mp_init(void);
 void mp_deinit(void);
 
 void mp_arg_check_num(uint n_args, uint n_kw, uint n_args_min, uint n_args_max, bool takes_kw);
-void mp_arg_parse_all(uint n_pos, const mp_obj_t *pos, mp_map_t *kws, uint n_allowed, const mp_arg_parse_t *allowed, mp_arg_parse_val_t *out_vals);
+void mp_arg_parse_all(uint n_pos, const mp_obj_t *pos, mp_map_t *kws, uint n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);
 
 mp_obj_dict_t *mp_locals_get(void);
 void mp_locals_set(mp_obj_dict_t *d);