{"ast_node_type":"function","tokens":[{"end":74,"kind":"keyword","start":0,"text":"fn"}]}
        fn report_maybe_different(expected: &str, found: &str) -> String {
    fn to_string(self, tcx: TyCtxt<'tcx>) -> Cow<'static, str> {
            // A naive approach to making sure that we're not reporting silly errors such as: