{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"#[allow(rustc::potential_query_instability)]"}]}
    #[allow(rustc::potential_query_instability)]
    #[rustc_lint_query_instability]
    pub(crate) fn live_regions_unordered(&self) -> impl Iterator<Item = RegionVid> {