(quail-translation-keymap): Bind right, left, down, and up keys.

lisp/international/quail.el

@@ -287,6 +287,10 @@ LEIM is available from the same ftp directory as Emacs."))
     (define-key map "\C-b" 'quail-prev-translation)
     (define-key map "\C-n" 'quail-next-translation-block)
     (define-key map "\C-p" 'quail-prev-translation-block)
+    (define-key map [right] 'quail-next-translation)
+    (define-key map [left] 'quail-prev-translation)
+    (define-key map [down] 'quail-next-translation-block)
+    (define-key map [up] 'quail-prev-translation-block)
     (define-key map "\C-i" 'quail-completion)
     (define-key map "\C-@" 'quail-select-current)
     (define-key map "\C-h" 'quail-translation-help)