r230580 - Improvement on sized deallocation from r230160:

[John McCall]

> On Mar 20, 2015, at 10:15 AM, Reid Kleckner <rnk at google.com> wrote:
> This code ultimately went away in r232731 and we took a new approach in r232788.

Okay, as I read it, Sema now simply selects the sized deallocator if the flag is passed, and IRGen’s existing logic for recognizing sized deallocators (necessary for type-scoped deallocators) will automatically kick in?  Sounds good.

John.