{"ast_node_type":"variable","tokens":[{"end":38,"kind":"keyword","start":0,"text":"let"}]}
            let item = ast.to_ptr(db);
        DefDiagnosticKind::UnresolvedExternCrate { ast } => {
            acc.push(UnresolvedExternCrate { decl: InFile::new(ast.file_id, item) }.into());