@Override
  public @NotNull String toString() {
    return "PsiTreeChangeEventImpl{" + myCode
           + (isGenericChange ? " (generic)" : "")
           + (myPropertyName == null ? "" : " ("+myPropertyName+")")
           + (myFile == null ? "" : " in file "+myFile.getName())
           +'}';
  }
@Override
  public @NotNull String toString()