patch 8.2.1370: MS-Windows: warning for using fstat() with stat_T

Problem:    MS-Windows: warning for using fstat() with stat_T.
Solution:   use _fstat64() if available. (Naruhiko Nishino, closes #6625)

src/macros.h

@@ -166,7 +166,15 @@
 # ifndef MSWIN
 #   define mch_access(n, p)	access((n), (p))
 # endif
-# define mch_fstat(n, p)	fstat((n), (p))
+
+// Use 64-bit fstat function if available.
+// NOTE: This condition is the same as for the stat_T type.
+# if (defined(_MSC_VER) && (_MSC_VER >= 1300)) || defined(__MINGW32__)
+#  define mch_fstat(n, p)	_fstat64((n), (p))
+# else
+#  define mch_fstat(n, p)	fstat((n), (p))
+# endif
+
 # ifdef MSWIN	// has its own mch_stat() function
 #  define mch_stat(n, p)	vim_stat((n), (p))
 # else

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1370,
 /**/
     1369,
 /**/