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3aee4a9628
This makes libc++'s <filesystem> tests compatible with MSVC's STL. In msvc_stdlib_force_include.h, we need to define 3 more macros: - _CRT_DECLARE_NONSTDC_NAMES activates the POSIX names of `getcwd` etc. As the comment explains, we need this because we test with Clang `-fno-ms-compatibility`, which defines `__STDC__` to `1`, which causes the UCRT headers to disable the POSIX names by default. - Then we need _CRT_NONSTDC_NO_WARNINGS to avoid emitting deprecation warnings about the POSIX names. - Finally, we need `NOMINMAX` to seal away the ancient evil. These macros are documented in https://learn.microsoft.com/en-us/cpp/c-runtime-library/compatibility?view=msvc-170. As a drive-by change, the patch adds a "simulated" macro for __has_feature(hwaddress_sanitizer). It also clang-formats all of msvc_stdlib_force_include.h and removes guards for __has_builtin(__builtin_source_location) in <source_location>, since those are not needed anymore.