internal/local template memebers

[BCS]

Reply to Bill,

> Indeed.  You're resurrecting a classic.  Maybe a good time to do so,
> though.  Lots of uses for this suggestion -- internal helper
> functions, local aliases for unwieldy types.  I've wished for it many
> times, too.
> 
> Another way to go would just be to say if you have a symbol with the
> same name as the template inside, then it automatically means
> everything else is hidden.

truth be told, that use is not the main reason I want this. The reduced memory 
usage is (when you have compiles that use up >1GB you start to think of these 
things).