anchor.diff:          | List_Tests -> "Doesn't run tests, but prints out list of tests instead."
           | Summary -> "Prints out summary after all tests are finished."
           | Version -> "Prints out version information."
  +        | Summary_Location -> "Prints out summary after all tests are finished including their source code location"
   
     [<CompilationRepresentation (CompilationRepresentationFlags.ModuleSuffix)>]
     module ExpectoConfig =
  
positive.code:     createSummaryMessage summary
      |> log.write Info
  
    /// Hooks to print report through test run
    type TestPrinters =
      { /// ...
  
negative.code:         | List_Tests -> id
          | Summary -> fun o -> {o with printer = TestPrinters.Summary}
          | Version -> fun o -> printExpectoVersion(); o
          | Summary_Location -> fun o -> {o with printer = TestPrinters.SummaryWithLocation}
  
        fun (args: string[]) ->
          let parsed =
  