public override int GetHashCode() => Hash.Combine(_lineSpan.GetHashCode(), _sourceSpan.GetHashCode());
 public override int GetHashCode()
 {
     return(_positionSpan.GetHashCode());
 }
 public override int GetHashCode()
 {
     return(Hash.Combine(_lineSpan.GetHashCode(), _sourceSpan.GetHashCode()));
 }