Markup block - Gen<None> - 77 - (0:0,0)
    Tag block - Gen<TagHelper> - 77 - (0:0,0) - p - ptaghelper
        StartTagAndEndTag - <p> ... </p>
        Markup span - Gen<Markup> - [Hello World ] - SpanEditHandler;Accepts:Any - (3:0,3) - Tokens:4
            SyntaxKind.Text;[Hello];
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.Text;[World];
            SyntaxKind.Whitespace;[ ];
        Statement block - Gen<None> - 58 - (15:0,15)
            Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (15:0,15) - Tokens:1
                SyntaxKind.Transition;[@];
            Code span - Gen<Stmt> - [do { var foo = bar;] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:12
                SyntaxKind.Keyword;[do];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.LeftBrace;[{];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Identifier;[var];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Identifier;[foo];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Assign;[=];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Identifier;[bar];
                SyntaxKind.Semicolon;[;];
            Markup block - Gen<None> - 12 - (35:0,35)
                Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:Any - (35:0,35) - Tokens:1
                    SyntaxKind.Whitespace;[ ];
                Tag block - Gen<TagHelper> - 10 - (36:0,36) - p - ptaghelper
                    StartTagAndEndTag - <p> ... </p>
                    Markup span - Gen<Markup> - [Foo] - SpanEditHandler;Accepts:Any - (39:0,39) - Tokens:1
                        SyntaxKind.Text;[Foo];
                Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:None - (46:0,46) - Tokens:1
                    SyntaxKind.Whitespace;[ ];
            Code span - Gen<Stmt> - [foo++; } while (foo<bar>);] - SpanEditHandler;Accepts:None - (47:0,47) - Tokens:15
                SyntaxKind.Identifier;[foo];
                SyntaxKind.Increment;[++];
                SyntaxKind.Semicolon;[;];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.RightBrace;[}];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Keyword;[while];
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.LeftParenthesis;[(];
                SyntaxKind.Identifier;[foo];
                SyntaxKind.LessThan;[<];
                SyntaxKind.Identifier;[bar];
                SyntaxKind.GreaterThan;[>];
                SyntaxKind.RightParenthesis;[)];
                SyntaxKind.Semicolon;[;];
