anchor.diff:          if isNull value then
               nullArg argName
   
  +    /// Raises a System.Collections.Generic.KeyNotFoundException.
  +    let [<NoDynamicInvocation>] inline keyNotFound (msg : string) =
  +        raise <| System.Collections.Generic.KeyNotFoundException msg
  +
       /// Not-AND (NAND) of two boolean values.
       /// Returns false when both values are 'true'; otherwise, returns true.
       let [<NoDynamicInvocation>] inline nand (p : bool) (q : bool) =
  
positive.code:     //
      let [<NoDynamicInvocation>] inline ofArray (chars : char[]) =
          System.String (chars)
  
      //
      [<CompiledName("TrimStartWith")>]
  
negative.code:     /// The empty string literal.
      let [<Literal>] empty = ""
  
      //
      let [<NoDynamicInvocation>] inline get (str : string) (index : int) =
          str.[index]
  
      /// Indicates whether the specified string is null or empty.
      let [<NoDynamicInvocation>] inline isNullOrEmpty str =
          System.String.IsNullOrEmpty str
  