{"ast_node_type":"variable","tokens":[{"end":72,"kind":"keyword","start":0,"text":"let"}]}
    let should_deduplicate_unreachable = |bbdata: &BasicBlockData<'_>| {
pub(super) fn remove_dead_blocks(body: &mut Body<'_>) {
        // CfgSimplifier::simplify leaves behind some unreachable basic blocks without a