Re: [PATCH v3 0/7] MR6752: include: More fixes to build libc++.

[Rémi Bernon]

v3: Rebased and add a `__x86_64__` guard around `UnsignedMultiply128` and `ShiftRight128`, reordered them to alphabetical order as they are in the SDK.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6752#note_87228