void output_display_line (struct window *w, display_line_dynarr *cdla,
display_line_dynarr *ddla, int line,
int force_start, int force_end);
void output_display_line (struct window *w, display_line_dynarr *cdla,
display_line_dynarr *ddla, int line,
int force_start, int force_end);