anchor.diff:    let ``max char char`` () = <@ max 'a' 'b' @> |> check 'b'
   
     [<Test>]
  +  let ``max float float`` () = <@ max 1.0 2.0 @> |> check 2.0
  +
  +  [<Test>]
     let ``max bool bool`` () = <@ max false true @> |> check true
   
     [<Test>]
  
positive.code:   let ``box char`` () = <@ box 'a' @> |> check (box 'a')
  
    [<Test>]
    let ``box bool`` () = <@ box true @> |> check (box true)
  
    [<Test>]
  
negative.code:   let ``hash char`` () = <@ hash 'c' @> |> check (hash 'c')
  
    [<Test>]
    let ``hash float`` () = <@ hash 1.0 @> |> check (hash 1.0)
  
    [<Test>]
    let ``hash bool`` () = <@ hash true @> |> check 1
  
    [<Test>]
  