[PATCH] Disallow clang from assigning a diagnostic to ID zero

[David Majnemer]

Ping


On Fri, Jun 21, 2013 at 3:42 AM, David Majnemer <david.majnemer at gmail.com>wrote:

> The fallout of r184401 made it apparent that clang uses diagnostic ID
> zero as a sentinel value while *also* assigning it to an actual diagnostic,
> err_attribute_not_type_attr.
>
> The attached patch should do two things:
> * Ensure that we don't give away ID 0
> * Make sure that we will assert if we attempt to use ID 0
>
> --
> David Majnemer
>
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