@Nullable
  public static String getNodeRawValue(@NotNull XValueNodeImpl valueNode) {
    String res = null;
    if (valueNode.getValueContainer() instanceof XValueTextProvider) {
      res = ((XValueTextProvider)valueNode.getValueContainer()).getValueText();
    }
    if (res == null) {
      res = valueNode.getRawValue();
    }
    return res;
  }
@Nullable
  public static String getNodeRawValue(@NotNull XValueNodeImpl valueNode)