msvc: fix detect_msys_tty()

The ntstatus.h header is only available in MINGW.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

compat/winansi.c

@@ -544,7 +544,20 @@ static HANDLE swap_osfhnd(int fd, HANDLE new_handle)
 #ifdef DETECT_MSYS_TTY
 
 #include <winternl.h>
+
+#if defined(_MSC_VER)
+
+typedef struct _OBJECT_NAME_INFORMATION
+{
+	UNICODE_STRING Name;
+	WCHAR NameBuffer[0];
+} OBJECT_NAME_INFORMATION, *POBJECT_NAME_INFORMATION;
+
+#define ObjectNameInformation 1
+
+#else
 #include <ntstatus.h>
+#endif
 
 static void detect_msys_tty(int fd)
 {