'const' and 'in' parameter storage classes

[ref2401 via Digitalmars-d-learn]

On Friday, 15 May 2015 at 16:30:29 UTC, Steven Schveighoffer 
wrote:
> On 5/15/15 12:04 PM, ref2401 wrote:
>> What is the difference between 'const' and 'in' parameter 
>> storage classes?
>> When should I use 'const' or 'in'?
>>
>> The documentation says 'in' is the same as 'const scope' but I 
>> can't
>> write 'const scope ref' though it's legal to write 'in ref'.
>
> scope ref const
>
> -Steve

still getting the error: Error: scope cannot be ref or out