dt_node_type
$$ = OP2(DT_TOK_XLATE, dt_node_type($3), $6);
$$ = OP1(DT_TOK_SIZEOF, dt_node_type($3));
$$ = OP2(DT_TOK_LPAR, dt_node_type($2), $4);
$$ = dt_node_type(NULL);
$$ = dt_node_type(NULL);
$$ = dt_node_type(NULL);
extern dt_node_t *dt_node_type(dt_decl_t *);