anchor.diff:      /// Converts the array of Int32 code-points (the actual Unicode Code Point number) to a string.
       let ofCodePoints (source: seq<int>) : string =
           source |> Seq.map Char.ConvertFromUtf32 |> String.concat String.Empty
  -
  +    #endif
  +    
       /// Converts a string to a byte-array using the specified encoding.
       let getBytes (encoding: System.Text.Encoding) (source: string) : byte [] = encoding.GetBytes source
   
  
positive.code:     let tryFindSliceIndex (slice: _ []) (source: _ []) =
          let index = Internals.FindSliceIndex.arrayImpl slice source
          if index = -1 then None else Some index
  
  
  /// Additional operations on String
  
negative.code:         let index = source.IndexOf slice
          if index = -1 then None else Some index
  
      #if !FABLE_COMPILER
  
      /// Converts the string to an array of Int32 code-points (the actual Unicode Code Point number).
      let toCodePoints (source : string) : seq<int> =
          let mapper i c =
  