{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"(hasher(&mut"}]}
                (hasher(&mut hcx, &cached_result), hasher(&mut hcx, &result))
            let (old_hash, new_hash) = qcx.dep_context().with_stable_hashing_context(|mut hcx| {
            });