public void destroyChange(@NotNull SimpleDiffChange change) {
    SimpleDiffChangeUi changeUi = myPresentations.set(change.getIndex(), null);
    if (changeUi != null) changeUi.destroyHighlighter();

    myValidChanges.remove(change);
    change.markDestroyed();
  }
public void destroyChange(@NotNull SimpleDiffChange change)