message: Don't assume LOG(FATAL) makes rest of code unreachable.
  Add a break after a LOG(FATAL) in a switch/case statement.
diff: @@ -286,6 +286,7 @@ void StateNode::_OpenGroupBalance(const BasicFormatStyle& style) {
  break;
  case SpacingDecision::Align:
  LOG(FATAL) << kNotForAlignment;
  + break;
  case SpacingDecision::Append:
  VLOG(4) << "current token is appended or aligned";
  wrap_column_positions.push(prev_state->current_column);
  