{"ast_node_type":"variable","tokens":[{"end":87,"kind":"keyword","start":0,"text":"let"}]}
        let (message, _) = diag.messages.first().expect("`LlvmError` with no message");
        let diag: Diag<'_, G> = self.0.into_diag(dcx, level);
        let message = dcx.eagerly_translate_to_string(message.clone(), diag.args.iter());