[clang] [C] Handle comma operator for implicit int->enum conversions (PR #138752)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

> @AaronBallman @erichkeane Apparently we used a clang version from July 2023 to compile clang when the testcase failed.
> 
> I made another try with a later build now and then I don't see the failure anymore so perhaps something has been fixed. Or it just went hiding but then I suppose it will popup at some point again.
> 
> Sorry if I sent you off on a wild goose chase. :(

No worries, I'm glad there's not an issue after all. :-)

https://github.com/llvm/llvm-project/pull/138752