[PATCH] D61858: Make `__is_base_of` more friendly with unions

[Marshall Clow via Phabricator via cfe-commits]

mclow.lists added a comment.

In D61858#1500270 <https://reviews.llvm.org/D61858#1500270>, @ldionne wrote:

> Shouldn't we also add unit tests for PR41843 in libc++?


Yes. But I want to do that later.
After this has landed (and probably wait a week for all the bots that are running trunk to update).


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  https://reviews.llvm.org/D61858/new/

https://reviews.llvm.org/D61858