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	that Flength returns an integer.

	* keymap.c: Deal with autoloaded keymaps properly.
        (get_keymap_1): Renamed to inner_get_keymap; made
	static.  New argument AUTOLOAD says to pursue autoloads if
	non-zero.
	(Fkeymapp, get_keymap, get_keyelt, Flookup_key): Ask get_keymap_1
	not to perform autoloads.
	(Fdefine_key): Ask get_keymap_1 to perform autoloads.  Since
	autoloading may GC, remember that we have to GCPRO our local
	variables now.
	(Fminor_mode_key_binding): Call get_keymap instead of calling
	get_keymap_1 with equivalent arguments.