objgenerator: .print(): Output real underlying function name.

py/obj.h

@@ -508,6 +508,7 @@ typedef struct _mp_obj_fun_native_t { // need this so we can define const object
 
 bool mp_obj_fun_prepare_simple_args(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *args,
                             uint *out_args1_len, const mp_obj_t **out_args1, uint *out_args2_len, const mp_obj_t **out_args2);
+const char *mp_obj_code_get_name(const byte *code_info);
 
 mp_obj_t mp_identity(mp_obj_t self);
 MP_DECLARE_CONST_FUN_OBJ(mp_identity_obj);

py/objfun.c

@@ -126,12 +126,16 @@ mp_obj_t mp_make_function_var_between(int n_args_min, int n_args_max, mp_fun_var
 /******************************************************************************/
 /* byte code functions                                                        */
 
-const char *mp_obj_fun_get_name(mp_obj_fun_bc_t *o) {
-    const byte *code_info = o->bytecode;
+const char *mp_obj_code_get_name(const byte *code_info) {
     qstr block_name = code_info[8] | (code_info[9] << 8) | (code_info[10] << 16) | (code_info[11] << 24);
     return qstr_str(block_name);
 }
 
+const char *mp_obj_fun_get_name(mp_obj_fun_bc_t *o) {
+    const byte *code_info = o->bytecode;
+    return mp_obj_code_get_name(code_info);
+}
+
 #if MICROPY_CPYTHON_COMPAT
 STATIC void fun_bc_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
     mp_obj_fun_bc_t *o = o_in;

py/objgenerator.c

@@ -68,7 +68,8 @@ typedef struct _mp_obj_gen_instance_t {
 } mp_obj_gen_instance_t;
 
 void gen_instance_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
-    print(env, "<generator object 'fun-name' at %p>", self_in);
+    mp_obj_gen_instance_t *self = self_in;
+    print(env, "<generator object '%s' at %p>", mp_obj_code_get_name(self->code_info), self_in);
 }
 
 mp_obj_t gen_instance_getiter(mp_obj_t self_in) {