Handle make-directory return values in file name handlers

Handle make-directory return values in file name handlers

* lisp/net/ange-ftp.el (ange-ftp-make-directory): Handle return
values.

* lisp/net/tramp.el (tramp-skeleton-make-directory): New defmacro.
Handle also return values.
* lisp/net/tramp-adb.el (tramp-adb-handle-make-directory):
* lisp/net/tramp-crypt.el (tramp-crypt-handle-make-directory):
* lisp/net/tramp-fuse.el (tramp-fuse-handle-make-directory):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-make-directory):
* lisp/net/tramp-sh.el (tramp-sh-handle-make-directory):
* lisp/net/tramp-smb.el (tramp-smb-handle-make-directory):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-handle-make-directory):
Use it.

* test/lisp/net/tramp-tests.el (tramp-test13-make-directory):
Handle return values.