@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    FilePosition position = (FilePosition)o;
    return myStartLine == position.myStartLine &&
           myStartColumn == position.myStartColumn &&
           myEndLine == position.myEndLine &&
           myEndColumn == position.myEndColumn &&
           Objects.equals(myFile, position.myFile);
  }
@Override
  public boolean equals(Object o)