anchor.diff:  
       let jsonFile = "generated.json"
   
  -    let jsonString = File.ReadAllText(jsonFile)
  -    
       let syntaxChecker = RuntimeFarkle.changePostProcessor PostProcessor.syntaxCheck FSharp.Language.runtime
   
       [<Params(true, false)>]
  
positive.code:             if x.DynamicallyReadInput then
                  runParserOnFile !jsonR () jsonFile Encoding.UTF8
              else
                  run !jsonR jsonString
          match parseResult with
          | Success (json, _, _) -> json
          | Failure _ -> failwithf "Error while parsing '%s'" jsonFile
  
negative.code:             let sr = File.OpenText(jsonFile)
              CharStream.ofTextReader sr
          else
              jsonFile |> File.ReadAllText |> CharStream.ofString
  
      [<Benchmark>]
      member x.FarkleCSharp() =
  