[libcxx-commits] [clang] [libcxx] [clang][libc++] Fix spelling of "synthesize" (PR #158523)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

Why does it require updating them at the same time? If you use an older Clang with a newer libc++, `__has_feature(__builtin_lt_synthesizes_from_spaceship)` will simply return `false`. If you use a newer Clang with an older libc++, `__has_feature(__builtin_lt_synthesises_from_spaceship)` also returns false. So in both cases the special spaceship stuff in libc++ should simply be disabled.

https://github.com/llvm/llvm-project/pull/158523