refactor: 3161 synchronized flag types and mode type

Author: Lilit0x

src/windows/mod.rs

@@ -56,7 +56,7 @@ s! {
     pub struct stat {
         pub st_dev: dev_t,
         pub st_ino: ino_t,
-        pub st_mode: u16,
+        pub st_mode: c_ushort,
         pub st_nlink: ::c_short,
         pub st_uid: ::c_short,
         pub st_gid: ::c_short,