message: Added comment to track the -1
diff: @@ -203,6 +203,7 @@ pub fn register(
  ) in finished_functions.iter()
  {
  let start = **start as usize;
  + // end is "last byte" of the function code
  let end = start + len - 1;
  min = cmp::min(min, start);
  max = cmp::max(max, end);
  