{"ast_node_type":"import","tokens":[{"end":60,"kind":"keyword","start":0,"text":"diag.help(format!(\"use"}]}
        diag.help(format!("use `extern {c_abi}` instead",));
        let c_abi = ExternAbi::C { unwind };
    } else if let ExternAbi::Stdcall { unwind } = abi {