RazorDocument - [0..12)::12 - [foo @bar baz]
    MarkupBlock - [0..12)::12
        MarkupTextLiteral - [0..4)::4 - [foo ] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Text;[foo];
            Whitespace;[ ];
        CSharpCodeBlock - [4..8)::4
            CSharpImplicitExpression - [4..8)::4
                CSharpTransition - [4..5)::1 - Gen<None> - SpanEditHandler;Accepts:None
                    Transition;[@];
                CSharpImplicitExpressionBody - [5..8)::3
                    CSharpCodeBlock - [5..8)::3
                        CSharpExpressionLiteral - [5..8)::3 - [bar] - Gen<Expr> - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14
                            Identifier;[bar];
        MarkupTextLiteral - [8..12)::4 - [ baz] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Whitespace;[ ];
            Text;[baz];
