anchor.diff:          match ts with
           | IdentifierSymbol symbolUse -> 
               match symbolUse.Symbol with
  -            | FSharpSymbolHelper.CorePatterns.GenericParameter _ -> GenericParameter |> Some
  +            | CorePatterns.GenericParameter _ -> Some GenericParameter
               | _ -> None
           | _ -> None
   
  
positive.code:         match ts with
          | IdentifierSymbol symbolUse -> 
              match symbolUse.Symbol with
              | FSharpSymbolHelper.ExtendedPatterns.TypeAbbreviation _ -> TypeAbbreviation |> Some
              | _ -> None
          | _ -> None
  
  
negative.code:         match ts with
          | IdentifierSymbol symbolUse -> 
              match symbolUse.Symbol with
              | ExtendedPatterns.Enum -> Some Enum
              | _ -> None
          | _ -> None
  
  