@SuppressWarnings("ALL")
  private static XmlTag createTableCellXmlTag(@NotNull final Project project, boolean inHeader) {
    final String filetext = "<root>" + (inHeader ? "<th></th>" : "<td></td>") + "</root";
    final XmlFile xmlFile = (XmlFile)PsiFileFactory.getInstance(project).createFileFromText("dummy.xml", XMLLanguage.INSTANCE,
                                                                                            filetext);
    XmlTag tag = xmlFile.getDocument().getRootTag();
    for (PsiElement element : tag.getChildren()) {
      if (element instanceof XmlTag) {
        tag = (XmlTag)element;
      }
    }
    return tag;
  }
@SuppressWarnings("ALL")
  private static XmlTag createTableCellXmlTag(@NotNull final Project project, boolean inHeader)