free_mark_proj(get_Tuple_pred(pred, get_Proj_proj(node)), n, set);
} else {
/* nothing: da in "free_ana_walker" behandelt. */
free_mark_proj(get_Tuple_pred(pred, get_Proj_proj(node)), n, set);
} else {
/* nothing: da in "free_ana_walker" behandelt. */