public static boolean skipValidation(@NotNull XmlElement holder) {
    Boolean doNotValidate = DO_NOT_VALIDATE.get(holder);
    if (doNotValidate != null) return doNotValidate;

    OuterLanguageElement element = PsiTreeUtil.getChildOfType(holder, OuterLanguageElement.class);

    if (element == null) {
      // JspOuterLanguageElement is located under XmlText
      for (PsiElement child = holder.getFirstChild(); child != null; child = child.getNextSibling()) {
        if (child instanceof XmlText) {
          element = PsiTreeUtil.getChildOfType(child, OuterLanguageElement.class);
          if (element != null) {
            break;
          }
        }
      }
    }
    if (element == null) {
      doNotValidate = false;
    } else {
      PsiFile containingFile = holder.getContainingFile();
      doNotValidate = containingFile.getViewProvider().getBaseLanguage() != containingFile.getLanguage();
    }
    holder.putUserData(DO_NOT_VALIDATE, doNotValidate);
    return doNotValidate;
  }
public static boolean skipValidation(@NotNull XmlElement holder)