{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"ty::Infer(ty::IntVar(_)"}]}
            ty::Infer(ty::IntVar(_) | ty::FloatVar(_)) => {
            // disqualifying the built-in auto impl for `i64: AutoTrait` either.
                Some(self.forced_ambiguity(MaybeCause::Ambiguity))