The names of these functions are historical and inconsistent with other
functions in the API: they relate to dict-wide properties but are not in
the ctf_dict_* namespace, and some of them take ints that could be
enums.
Fix all of these:
ctf_cuname -> ctf_dict_cuname
ctf_cuname_set -> ctf_dict_set_cuname
ctf_parent_dict -> ctf_dict_parent
ctf_parent_name -> ctf_dict_parent_name
ctf_parent_name_set -> ctf_dict_set_parent_name
ctf_setmodel -> ctf_dict_set_model
ctf_getmodel -> ctf_dict_model
ctf_setspecific -> ctf_dict_specific_set
ctf_getspecific -> ctf_dict_specific