SYM_LABEL
[SYM_LABEL] = "SYM_LABEL",
if (!sym || sym->type != SYM_LABEL) {
struct symbol *sym = alloc_symbol(token->pos, SYM_LABEL);
sym = alloc_symbol(token->pos, SYM_LABEL);
case SYM_LABEL:
[SYM_LABEL] = "labl",
stmt->label_identifier->type == SYM_LABEL &&
stmt->goto_label->type == SYM_LABEL &&
goto_stmt->goto_label->type != SYM_LABEL ||
tmp->label_identifier->type != SYM_LABEL ||
[SYM_LABEL] = "label",