How to foreach over a DList?

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On Tuesday, 1 April 2014 at 13:55:05 UTC, monarch_dodra wrote:
> On Tuesday, 1 April 2014 at 13:54:00 UTC, monarch_dodra wrote:
>> In contrast, if you *pass* "1" to the DList, you lose that 
>> info, and the DList will complain that you are trying to 
>> assign an int to a ubyte.
>
> EDIT: The issue is actually one of template constraint, but it's
> essentially equivalent. Without context you can't assign an int
> to a ubyte.

I thought that maybe VRP might work here (as you detailed in your 
other post), as it works elsewhere. Is is possible to extend VRP 
to cover this situation?