Markup block - Gen<None> - 17 - (0:0,0)
    Tag block - Gen<TagHelper> - 17 - (0:0,0) - p - PTagHelper
        StartTagAndEndTag - <p> ... </p>
        SyntaxKind.HtmlTextLiteral - [LF] - [3..5) - FullWidth: 2 - Slots: 1
            SyntaxKind.NewLine;[LF];
        Tag block - Gen<TagHelper> - 6 - (5:1,0) - br - BRTagHelper
            SelfClosing - <br />
        SyntaxKind.HtmlTextLiteral - [LF] - [11..13) - FullWidth: 2 - Slots: 1
            SyntaxKind.NewLine;[LF];
