[polly] Move reduction property to memory accesses

[Tobias Grosser]

On 19/06/2014 18:40, Johannes Doerfert wrote:
> Hey Tobias,
>
>
>
> We (briefly) talked about this earlier but it is an important step to
> prepare the coming patches.
>
> Do you have concerns by moving the property (I didn't weaken any limitations
> here) and it is actually a minimal patch bloated by the comment move.

LGTM.

Tobias