  ///       }
  ///
  ///   User:
  ///
  ///       func myFun() { return 123 }  //  add linesbreaks before and after the return statement
  ///
  /// - Parameters:
  ///   - userOffset: The current character offset within the user text.
  ///   - user: The tokenized user whitespace buffer.
  ///   - form: The tokenized formatted whitespace buffer.
  func checkForAddLineErrors(userOffset: Int, user: [String], form: [String]) {