anchor.diff:      /// https://github.com/Albacore/albacore/#versionizer and
       /// https://github.com/haf/semver to manage your versions in a CI-environment.</param>
       /// <param name="tests">The performance tests to run against the subject and the alternatives.</param>
  -    let testPerfHistory name (subject : 'a) (testRunId : string) =
  +    let testPerfHistory name subject (testRunId : string) =
           testPerfHistoryWithConfig (PerfHistoryConf.Defaults name) name subject testRunId
   
   module private ExampleUsage =
  
positive.code:     /// <param name="subject">Implementation under test.</param>
      /// <param name="alternatives">Secondary implementations to be compared against.</param>
      /// <param name="tests">The performance tests to run against the subject and the alternatives.</param>
      let testPerfImplsWithConfig (conf : PerfImplsConf) name (subject : 'a) (alternatives : 'a list) (tests : PerfTest<'a> list) =
          let tester () =
              new ImplementationComparer<_>(subject, alternatives, conf.comparer, conf.verbose, conf.throwOnError)
                  :> PerformanceTester<'a>
  
          testCase name <| fun _ ->
              let results = PerfTest.run tester tests
  
negative.code:     /// https://github.com/Albacore/albacore/#versionizer and
      /// https://github.com/haf/semver to manage your versions in a CI-environment.</param>
      /// <param name="tests">The performance tests to run against the subject and the alternatives.</param>
      let testPerfHistoryWithConfig (conf : PerfHistoryConf) name subject (testRunId: string) tests =
          let tester =
              new PastImplementationComparer<_>(
                  subject, testRunId, conf.historyFile, conf.comparer,
                  conf.verbose, conf.throwOnError, conf.overwrite)
  
          testCase name <| fun _ ->
              let results = PerfTest.run (fun () -> tester :> PerformanceTester<_>) tests
              tester.PersistCurrentResults()
              conf.handleResults(conf.historyFile, results)
  
  