[PATCH] Don't crash when dumping objc_bridge_related attributes

[Aaron Ballman via cfe-commits]

On Wed, Nov 25, 2015 at 6:13 PM, Joe Ranieri <joe at alacatialabs.com> wrote:
> Clang's AST dumping currently crashes when dumping objc_bridge_related
> attributes where the class method and instance method fields are left
> empty. The attached patch marks the two arguments as optional and
> updates TableGen to understand the optional flag for identifier
> attribute arguments when generating the dump function.

LGTM, thank you! Do you have commit privileges, or would you like me
to commit on your behalf?

~Aaron