private static void repairRemovedElement(@NotNull CompositeElement oldParent, TreeElement oldChild) {
    if(oldChild == null) return;
    FileElement treeElement = DummyHolderFactory.createHolder(oldParent.getManager(), null, false).getTreeElement();
    treeElement.rawAddChildren(oldChild);
  }
private static void repairRemovedElement(@NotNull CompositeElement oldParent, TreeElement oldChild)