[llvm-branch-commits] [clang] [Clang] Improve type traits recognition in `__has_builtin` (#111516) (PR #111660)

[Ye Luo via llvm-branch-commits]

ye-luo wrote:

> Just to double-check assumptions -- we don't know of any builtins which Clang now reports true for which Clang does not actually support? And we don't know of any builtins which Clang now reports false for which Clang does actually support? IOW, `__has_builtin` is not lying after landing these changes, right?

I have little knowledge about builtin. At least `__has_builtin` is not lying about `__reference_converts_from_temporary`. So, probably I will just live with this change in the point release.


https://github.com/llvm/llvm-project/pull/111660