Function walk_tagged_counted 

pub fn walk_tagged_counted(
    ops: &[TaggedOp],
    mult: u64,
    count: &dyn Fn(LoopCount) -> usize,
    f: &mut dyn FnMut(&TaggedOp, u64),
)

walk_tagged with each loop counted by count — LoopCount::bound for the static bound, a trip’s count at a position for the run a position makes.