XmlFile:test.xml
  PsiElement(XML_DOCUMENT)
    PsiElement(XML_PROLOG)
      <empty list>
    XmlTag:a
      XmlToken:XML_START_TAG_START('<')
      XmlToken:XML_NAME('a')
      XmlToken:XML_TAG_END('>')
      XmlText
        PsiElement(XML_CDATA)
          XmlToken:XML_CDATA_START('<![CDATA[')
          XmlToken:XML_DATA_CHARACTERS('<greeting>Hello, world!</greeting>')
          XmlToken:XML_CDATA_END(']]>')
      XmlToken:XML_END_TAG_START('</')
      XmlToken:XML_NAME('a')
      XmlToken:XML_TAG_END('>')