r174627 - FileCheckize volatile test

[Tim Northover]

> I appreciate the thought, but changing it from just counting the number of times
> 'volatile' shows up to, essentially, putting a minimum on the number of times
> 'volatile load' shows up is not a huge improvement.

Thanks John. It was actually far worse even than that. I'd not even
checked all of the volatiles present. It should be greatly improved in
r174700.

Tim.