{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"Rvalue::Cast(CastKind::PointerExposeProvenance,"}]}
            Rvalue::Cast(CastKind::PointerExposeProvenance, _, _) => return Err(Unpromotable),
            // ptr-to-int casts are not possible in consts and thus not promotable