GitLab

        * macterm.c (keycode_to_xkeysym_table): Add <tab>, <backspace>,
        <escape>.
        (keycode_to_xkeysym_table): Reformat and add more comments.
        (XTread_socket): Drop special case for backspace.

        * term/mac-win.el: Add entries in function-key-map for
        [tab], [backspace], [escape].