Introduce tui_win_info::make_visible_with_new_height

Introduce tui_win_info::make_visible_with_new_height

This changes make_visible_with_new_height to be a method on
tui_win_info, letting us remove a spot that checks the window type.

gdb/ChangeLog
2019-06-25  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (tui_source_window_base::update_tab_width): Call
	make_visible_with_new_height method.
	(tui_win_info::make_visible_with_new_height): New method.
	(tui_source_window_base::do_make_visible_with_new_height)
	(tui_data_window::do_make_visible_with_new_height)
	(tui_cmd_window::do_make_visible_with_new_height): New methods.
	(make_visible_with_new_height): Remove.
	(tui_resize_all, tui_adjust_win_heights): Use
	make_visible_with_new_height method.
	* tui/tui-data.h (struct tui_win_info)
	<do_make_visible_with_new_height, make_visible_with_new_height>:
	New methods.
	(struct tui_source_window_base, struct tui_data_window)
	(struct tui_cmd_window) <do_make_visible_with_new_height>: New
	methods.