Module visibility feature?

[Tommi]

On Wednesday, 17 July 2013 at 11:33:39 UTC, Jeremy DeHaan wrote:
> Has anything like this been suggested/thought of before? I 
> looked through the DIP's but didn't see anything.

I don't know, but I think this is a good suggestion; stronger 
language support for modules that are an implementation detail of 
a package. The 'package' keyword you suggested is definitely more 
logical than 'private'.