@Override
  public void computeChildren(@NotNull XCompositeNode node) {
    XValueChildrenList lst = new XValueChildrenList();
    myErrorMessage2ValueMap.keySet().forEach(s -> lst.addTopGroup(new MyErrorsValueGroup(s)));
    node.addChildren(lst, true);
  }
@Override
  public void computeChildren(@NotNull XCompositeNode node)