Patch to fix crash on invalid

[Jason Haslam]

Ping? Rebased patch attached.

Jason

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On Mar 25, 2013, at 4:57 PM, Jason Haslam <jason.haslam at gmail.com> wrote:

> Ping. If this updated patch is okay can somebody please apply it for me?
> 
> Jason
> 
> 
> On Mar 21, 2013, at 2:10 PM, Jason Haslam <jason.haslam at gmail.com> wrote:
> 
>> On Mar 21, 2013, at 1:54 PM, John McCall <rjmccall at apple.com> wrote:
>> 
>>> On Mar 21, 2013, at 11:05 AM, Jason Haslam <jason.haslam at gmail.com> wrote:
>>>> The attached patch fixes a crash on invalid. Diagnosing tag type definition in a function return type will crash when the type definition creates an invalid decl. The patch includes one such test case.
>>> 
>>> I think it might make more sense to just not the set isTypeSpecOwned() flag in this case.
>> 
>> Yeah, you're right. Adjusted patch attached. Thanks!
>> 
>> Jason
>> 
>> <crash-on-invalid.diff>
>