(memory_below_frame, fast_clear_end_of_line): Move to struct terminal.
(min_padding_speed, dont_calculate_costs): Comment out (unused).
- * term.c (set_terminal_window, ins_del_lines, calculate_costs, term_init)
* dispnew.c (line_hash_code, line_draw_cost)
(direct_output_for_insert, update_frame_1, scrolling, update_frame_line)
* scroll.c (calculate_scrolling, calculate_direct_scrolling)
(scrolling_1, scroll_cost)
* sysdep.c (hft_init)
+ * term.c (set_terminal_window, ins_del_lines, calculate_costs)
+ (term_init)
* xdisp.c (try_window_id)
* xterm.c (x_initialize): Use the accessor macros for terminal
characteristics.