message: hammer: some simplifications
diff: @@ -11969,7 +11969,7 @@ class basic_json
  JSON_THROW(invalid_iterator::create(210, "iterators do not fit"));
  }
  - if (JSON_UNLIKELY(first.m_object == this or last.m_object == this))
  + if (JSON_UNLIKELY(first.m_object == this))
  {
  JSON_THROW(invalid_iterator::create(211, "passed iterators may not belong to container"));
  }
  @@ -12065,8 +12065,7 @@ class basic_json
  }
  // passed iterators must belong to objects
  - if (JSON_UNLIKELY(not first.m_object->is_object()
  - or not last.m_object->is_object()))
  + if (JSON_UNLIKELY(not first.m_object->is_object()))
  {
  JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects"));
  }
  