hb_set_add (hb_set_t       *set,
	    hb_codepoint_t  codepoint)
{
  /* Immutible-safe. */
  set->add (codepoint);
}
hb_set_add (hb_set_t       *set,
	    hb_codepoint_t  codepoint)
{
   
  set->add (codepoint);
}