strat: only include windows.h in translation units where actually needed

libraries/libstratosphere/source/diag/impl/diag_backtrace_impl.os.generic.cpp

@@ -15,7 +15,9 @@
  */
 #include <stratosphere.hpp>
 
-#if defined(ATMOSPHERE_OS_LINUX) || defined(ATMOSPHERE_OS_MACOS)
+#if defined(ATMOSPHERE_OS_WINDOWS)
+#include <stratosphere/windows.hpp>
+#elif defined(ATMOSPHERE_OS_LINUX) || defined(ATMOSPHERE_OS_MACOS)
 #include <fcntl.h>
 #include <unistd.h>
 #endif

libraries/libstratosphere/source/diag/impl/diag_default_abort_observer.cpp

@@ -16,6 +16,10 @@
 #include <stratosphere.hpp>
 #include "diag_dump_stack_trace.hpp"
 
+#if defined(ATMOSPHERE_OS_WINDOWS)
+#include <stratosphere/windows.hpp>
+#endif
+
 namespace ams::diag::impl {
 
     #if defined(AMS_BUILD_FOR_DEBUGGING) || defined(AMS_BUILD_FOR_DEBUGGING)

libraries/libstratosphere/source/diag/impl/diag_symbol_impl.os.windows.cpp

@@ -14,6 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <stratosphere.hpp>
+#include <stratosphere/windows.hpp>
 #include "diag_symbol_impl.hpp"
 
 #include <cxxabi.h>