{"ast_node_type":"variable","tokens":[{"end":82,"kind":"keyword","start":0,"text":"&&"}]}
                    && let Some(def_id) = self.0.type_var_origin(vid).param_def_id
                if let ty::Infer(ty::TyVar(vid)) = *ty.kind()
                    && let generics = self.0.tcx.generics_of(self.1)