* dir.cc (readdir): Fill out new old_d_ino field.

* fhandler.h (fhandler_base::namehash): Define as ino_t.
(fhandler_base::get_namehash): Ditto.
* fhandler_disk_file.cc (fhandler_disk_file::fstat_helper): Accommodate new 64
bit st_ino.
* fhandler_socket.cc (fhandler_socket::fstat): Ditto.
* path.cc (hash_path_name): Return ino_t.
* syscalls.cc (stat64_to_stat32): Convert 64 bit inode to 32 bit.
* winsup.h (hash_path_name): Declare as returning ino_t.
* include/cygwin/stat.h (__stat32): Use 32 bit st_ino.
(__stat64): Use 64 bit st_ino.
* include/cygwin/types.h (__ino64_t): Define.
(__ino32_t): Ditto.
(ino_t): Define appropriately.

winsup/cygwin/dir.cc

@@ -146,6 +146,7 @@ readdir (DIR *dir)
 	  dir->__d_dirent->d_ino = hash_path_name (dino, res->d_name);
 	}
     }
+  dir->__d_dirent->old_d_ino = dir->__d_dirent->d_ino;	// just truncate
   return res;
 }