Allow identical imports

[Tofu Ninja]

On Tuesday, 30 July 2013 at 14:42:47 UTC, Dicebot wrote:
> On Tuesday, 30 July 2013 at 14:31:00 UTC, Kenji Hara wrote:
>> I think it's a not good compiler implementation detail and 
>> unnecessary
>> intrusive behavior.
>> Now I'm proposing to fix import mechanism in here.
>> https://github.com/D-Programming-Language/dmd/pull/2256
>
>
> That I agree. My comment referred to the opinion that having 
> two identical imports in the same scope should not compile 
> anyway, whatever the actual reason is.

I would think that a redundant import would be something along 
the lines of a warning, not a full on error, there is no reason 
the compiler shouldn't be able to compile it.