fn transcribe_counters(
old: &NodeCounters<BasicCoverageBlock>,
bcb_needs_counter: &DenseBitSet<BasicCoverageBlock>,
) -> CoverageCounters
fn transcribe_counters(
old: &NodeCounters<BasicCoverageBlock>,
bcb_needs_counter: &DenseBitSet<BasicCoverageBlock>,
) -> CoverageCounters