Markup block - Gen<None> - 14 - (0:0,0)
    Tag block - Gen<TagHelper> - 7 - (0:0,0) - input - InputTagHelper1 - InputTagHelper2
        StartTagOnly - <input>
    Tag block - Gen<TagHelper> - 7 - (7:0,7) - input - InputTagHelper1 - InputTagHelper2
        StartTagOnly - <input>
