[Bug libstdc++/116802] Symbol `is` (non-standard) is user inside the library.

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116802

--- Comment #8 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Tymi from comment #7)
> "This issue is indeed invalid then" is not misleading. The issue is
> literally invalid. `is` is a standard function.

Yes it's already invalid because `is` is a standard function.  I mean it's not
related to if Clang compiles it or not.