[Polly] [Refactor] Use a function attribute to make polly skip a function

[Tobias Grosser]

On 15/07/2014 22:49, Johannes Doerfert wrote:
> Thanks for the feedback! I changed the patch according to it.
>
> Now attached is an updated version __but__ I didn't run the cloog tests!
>
> Could somebody run them and verify my regexp works?

Works for me.

Thanks,
Tobias