Fix #2529: explicit protection package #3651

[Dicebot via Digitalmars-d-announce]

On Saturday, 23 August 2014 at 11:12:34 UTC, Kagamin wrote:
> On Saturday, 23 August 2014 at 11:04:35 UTC, Jacob Carlborg 
> wrote:
>> That's what we're trying to fix with this change.
>
> The proposal is to make internals visible to super packages, I 
> only wonder whether internals visible to some package should be 
> hidden from its subpackages.

It addresses both - explicitly supplied package identifiers imply 
access to all subpackages. Current implementation is very 
striaghtforward and naive in that regard.