Markup block - Gen<None> - 18 - (0:0,0)
    Tag block - Gen<TagHelper> - 18 - (0:0,0) - p - ptaghelper
        StartTagAndEndTag - <p foo bar
        foo - Minimized
        bar - Minimized
        Tag block - Gen<TagHelper> - 8 - (10:0,10) - strong - strongtaghelper
            StartTagAndEndTag - <strong>
