anchor.diff:  type RunConfiguration = 
       { AssemblyLocation : string
         TestList : string list
  +      PathToOutputFile: string option
         IterationsCount : uint32 option }
   
   module ConfigurationHelpers = 
  
positive.code:                 let cfg' = 
                      match h with
                      | Location(x) -> { cfg with AssemblyLocation = x }
                      | Test(x) -> { cfg with TestList = cfg.TestList @ [ x ] }
                      | Count(x) -> { cfg with IterationsCount = Some(x) }
                      | _ -> cfg
                  read' t cfg'
              | [] -> cfg
  
negative.code:         let cfg = readConfigFromArgs (args |> List.ofArray)
          let results = runForConfig cfg
          
          let fileName = 
              match cfg.PathToOutputFile with
              | Some(f) -> f
              | _ -> "Results.json"
  
          use sw = System.IO.File.CreateText fileName
          let res = TestResultePersister.serialize results 
          sw.Write(res)
  
          0
  