{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"//"}]}
        // find basic blocks with no statement and a return terminator
    fn run_pass(&self, _: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
        let mut bbs_simple_returns = DenseBitSet::new_empty(body.basic_blocks.len());