(Foverlay_start, Foverlay_end): Declare these functions.

(Foverlay_start, Foverlay_end): Declare these functions.
(Fprevious_single_property_change, Fend_of_line, Felt): Ditto.
(Fforward_line, Fforward_word, Fdelete_region, Fforward_char): Ditto.
(Fnarrow_to_region, Fwiden, Fmatch_beginning, Fmatch_end): Ditto.
(Fskip_chars_forward, Fskip_chars_backward): Ditto.
(Ffile_name_absolute_p, read_doc_string): Ditto.
(get_frame_param, store_frame_param, store_in_alist): Ditto.
(describe_map_tree): Declaration moved here from keymap.c.