private static HighlightInfoType getTagProblemInfoType(XmlTag tag) {
   if (tag instanceof HtmlTag && XmlUtil.HTML_URI.equals(tag.getNamespace())) {
     if (isInjectedHtmlTagForWhichNoProblemsReporting((HtmlTag) tag))
       return HighlightInfoType.INFORMATION;
     return HighlightInfoType.WARNING;
   }
   return HighlightInfoType.WRONG_REF;
 }