{"ast_node_type":"variable","tokens":[{"end":85,"kind":"keyword","start":0,"text":"if"}]}
        if let ty::Adt(def, _) = self.cx.structurally_resolve_type(span, ty).kind() {
    fn is_multivariant_adt(&self, ty: Ty<'tcx>, span: Span) -> bool {
            // Note that if a non-exhaustive SingleVariant is defined in another crate, we need