/** Set the \c \%destructor for \c node as \c code at \c loc. */
void symbol_list_destructor_set (symbol_list *node, char const *code,
location loc);
/** Set the \c \%destructor for \c node as \c code at \c loc. */
void symbol_list_destructor_set (symbol_list *node, char const *code,
location loc);