message: freelist: fix cast in assertion
diff: @@ -81,7 +81,7 @@ public:
  }
  inline size_t pop() {
  - d_assert(_off >= 0 && _off < static_cast<fl_off_t>(_maxCount));
  + d_assert(_off >= 0 && static_cast<uint16_t>(_off) < _maxCount);
  auto allocOff = _list[_off];
  _off += 1;
  