{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"//"}]}
    // coordinates of 0, `llvm-cov` might misinterpret them.
    // Line/column coordinates are supposed to be 1-based. If we ever emit
    let all_nonzero = [start_line, start_col, end_line, end_col].into_iter().all(|x| x != 0);