fix compile error on Windows

storage/xtradb/include/os0file.h

@@ -558,7 +558,7 @@ UNIV_INTERN
 void
 os_file_set_nocache(
 /*================*/
-	int		fd,		/*!< in: file descriptor to alter */
+	os_file_t	fd,		/*!< in: file descriptor to alter */
 	const char*	file_name,	/*!< in: file name, used in the
 					diagnostic message */
 	const char*	operation_name);/*!< in: "open" or "create"; used in the

storage/xtradb/row/row0merge.cc

@@ -3126,7 +3126,7 @@ row_merge_file_create(
 
 	if (merge_file->fd >= 0) {
 		if (srv_disable_sort_file_cache) {
-			os_file_set_nocache(merge_file->fd,
+			os_file_set_nocache(OS_FILE_FROM_FD(merge_file->fd),
 				"row0merge.cc", "sort");
 		}
 	}