The FAIL_FAST_X macros don't play nice with header units #644

FAIL_FAST_X depends of static inline functions in strsafe.h.

Static inline functions are not supported by header units & modules dcleblanc/SafeInt#61.

You have to #include "strsafe.h" before import winrt_base; and before any header units with window SDK includes, or you get

error C2129: static function 'HRESULT StringValidateDestW(STRSAFE_PCNZWCH,size_t,const size_t)' declared but not defined