message: Use i32::MAX instead of custom value
diff: @@ -255,9 +255,8 @@ pub fn add_iterator<'a, S: Storage, Q: Querier>(
  .try_into()
  .expect("Found more iterator IDs than supported");
  let new_id = last_id + 1;
  - const INT32_MAX_VALUE: u32 = 2_147_483_647;
  - if new_id > INT32_MAX_VALUE {
  - panic!("Iterator ID exceeded INT32_MAX_VALUE. This must not happen.");
  + if new_id > (i32::MAX as u32) {
  + panic!("Iterator ID exceeded i32::MAX. This must not happen.");
  }
  b.iterators.insert(new_id, iter);
  new_id
  