{"ast_node_type":"variable","tokens":[{"end":58,"kind":"keyword","start":0,"text":"if"}]}
        if let ty::Alias(ty::Opaque, alias_ty) = *t.kind()
    fn visit_ty(&mut self, t: Ty<'tcx>) -> Self::Result {
            && let Some(def_id) = alias_ty.def_id.as_local()