{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"cov_mark::hit!(expected_type_struct_field_followed_by_comma);"}]}
                            cov_mark::hit!(expected_type_struct_field_followed_by_comma);
                            cov_mark::hit!(expected_type_struct_field_without_leading_char);
                            let expr_field = previous_non_trivia_token(token.clone())?.parent().and_then(ast::RecordExprField::cast)?;