[swift-dev] [Swift 2.2] IRGen: Work around crash lowering generic base class-constrained type parameter.

[Joe Pamer]

Thanks, Joe!

This change is approved for Swift 2.2. Please go ahead and cherry-pick it to swift-2.2-branch.

- Joe

> On Feb 10, 2016, at 1:35 PM, Joe Groff <jgroff at apple.com> wrote:
> 
> Hey Joe, I have another fix being tested for a regression handling generic parameters constrained by dependent generic base class constraints:
> 
> https://github.com/apple/swift/pull/1257 (master)
> https://github.com/apple/swift/pull/1258 (2.2)
> 
> I'd like to pull this into 2.2, with your approval.
> 
> -Joe