NewType does not display the derived class that is throwing the error

[sscontact]

Hi,

The constructor evaluates if an argument fails to pass the predicate; it does throw the exception but does not include the derived type as it does in the implicit operator. The exception from the constructor is very generic. Can you please add the derived type?

System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: value
   at LanguageExt.NewType`4..ctor(A value)

 public NewType(A value)
  {
      PRED val = default(PRED);
      if (!val.True(value))
      {
          throw new ArgumentOutOfRangeException("value");
      }

      if (Prelude.isnull(value))
      {
          throw new ArgumentNullException("value");
      }

      Value = value;
  }

The implicit operator, include typeof(NEWTYPE).Name

 public static explicit operator A(NewType<NEWTYPE, A, PRED, ORD> type)
  {
      if ((object)type != null)
      {
          return type.Value;
      }

      throw new ArgumentException("Can't explictly convert from a null " + typeof(NEWTYPE).Name);
  }

[louthy]

Can you please add the derived type?

Yes, you can. Do an MR and I'll review.