RazorDocument - [0..26)::26 - [LF  @addTagHelper "*, Foo"]
    MarkupBlock - [0..26)::26
        MarkupTextLiteral - [0..2)::2 - [LF] - Gen<Markup> - SpanEditHandler;Accepts:Any
            NewLine;[LF];
        CSharpCodeBlock - [2..26)::24
            CSharpEphemeralTextLiteral - [2..4)::2 - [  ] - Gen<Stmt> - SpanEditHandler;Accepts:Any
                Whitespace;[  ];
            RazorDirective - [4..26)::22
                CSharpTransition - [4..5)::1 - Gen<None> - SpanEditHandler;Accepts:None
                    Transition;[@];
                RazorDirectiveBody - [5..26)::21
                    RazorMetaCode - [5..17)::12 - Gen<None> - SpanEditHandler;Accepts:None
                        Identifier;[addTagHelper];
                    CSharpCodeBlock - [17..26)::9
                        MarkupTextLiteral - [17..18)::1 - [ ] - Gen<None> - SpanEditHandler;Accepts:None
                            Whitespace;[ ];
                        CSharpStatementLiteral - [18..26)::8 - ["*, Foo"] - Gen<AddTagHelper:{"*, Foo";*, Foo;*;Foo}> - SpanEditHandler;Accepts:AnyExceptNewline
                            StringLiteral;["*, Foo"];
        MarkupTextLiteral - [26..26)::0 - [] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Marker;[];
    EndOfFile;[];
