You now use the following:
efl_text_set(efl_part(edje_obj, "part"), "text");
const char *text = efl_text_get(efl_part(edje_obj, "part"));
The former method of edje_object_part_text_set/get is now legacy.
Also, adjusted 'tests/emotion/emotion_test_main-eo.c' with
this change.