fn EvaluateNode<AllocF: Allocator<floatX>>(
block_start: usize,
pos: usize,
max_backward_limit: usize,
gap: usize,
starting_dist_cache: &[i32],
model: &ZopfliCostModel<AllocF>,
queue: &mut StartPosQueue,
nodes: &mut [ZopfliNode],
)