RazorDocument - [0..39)::39 - [@await foreach(var foo in bar { foo(); ]
    MarkupBlock - [0..39)::39
        MarkupTextLiteral - [0..0)::0 - [] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Marker;[];
        CSharpCodeBlock - [0..39)::39
            CSharpTransition - [0..1)::1 - Gen<None> - SpanEditHandler;Accepts:None
                Transition;[@];
            CSharpStatementLiteral - [1..39)::38 - [await foreach(var foo in bar { foo(); ] - Gen<Stmt> - SpanEditHandler;Accepts:Any
                Keyword;[await];
                Whitespace;[ ];
                Keyword;[foreach];
                LeftParenthesis;[(];
                Identifier;[var];
                Whitespace;[ ];
                Identifier;[foo];
                Whitespace;[ ];
                Keyword;[in];
                Whitespace;[ ];
                Identifier;[bar];
                Whitespace;[ ];
                LeftBrace;[{];
                Whitespace;[ ];
                Identifier;[foo];
                LeftParenthesis;[(];
                RightParenthesis;[)];
                Semicolon;[;];
                Whitespace;[ ];
