STRING_GROW;
STRING_FINISH;
loc->start = token_start;
val->symbol = symbol_get (last_string, *loc);
symbol_class_set (val->symbol, token_sym, *loc);
STRING_GROW;
STRING_FINISH;
loc->start = token_start;
val->symbol = symbol_get (last_string, *loc);
symbol_class_set (val->symbol, token_sym, *loc);