* keymap.c (access_keymap): Add AUTOLOAD parameter.

* keymap.c (access_keymap): Add AUTOLOAD parameter.
Do the meta->esc mapping.  Call get_keyelt before returning.
Start scanning from the second element (the first is always `keymap')
to make it easier to detect when we reach a parent map.
Handle the case of inheriting from a symbol whose function is a map.
(Fkeymap_parent): Also handle the `inherit from symbol' case.
(fix_submap_inheritance, Fdefine_key): Update call to access_keymap.
(get_keyelt, Flookup_key): Update call to access_keymap.
Remove the meta->esc mappings.
(define_as_prefix): Delete old disabled code.
(menu_item_p): New function.
(where_is_internal_1): Skip over the few remaining menu items.
* lisp.h (access_keymap): Update prototype.
* keyboard.c (read_char, menu_bar_items, tool_bar_items):
Update call to access_keymap.
(follow_key, read_key_sequence): Update calls to access_keymap.
Remove the meta->esc mappings.