{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"body.basic_blocks.iter().map(|it|"}]}
        body.basic_blocks.iter().map(|it| (it.0, ArenaMap::default())).collect();
    let mut result: ArenaMap<BasicBlockId, ArenaMap<LocalId, bool>> =
    fn dfs(