TUI resize unification

TUI resize unification

The TUI currently has two different ways to resize a window: the
resize method, and the methods make_invisible_and_set_new_height and
make_visible_with_new_height.

There's no deep reason to have two different ways to resize a window,
so this patch unifies them, leaving just the "resize" method.

This also changes the locator to be handled more like an ordinary
window and less like an adjunct of the associated source window.

gdb/ChangeLog
2019-08-15  Tom Tromey  <tom@tromey.com>

	* tui/tui-io.c (tui_puts_internal): Check TUI_CMD_WIN before
	calling update_cmdwin_start_line.
	* tui/tui-winsource.h (struct tui_source_window_base)
	<do_make_visible_with_new_height, set_new_height>: Don't declare.
	<rerender>: Declare.
	* tui/tui-winsource.c (tui_source_window_base::update_tab_width):
	Call rerender.
	(tui_source_window_base::set_new_height): Remove.
	(tui_source_window_base::rerender): Rename from
	do_make_visible_with_new_height.
	* tui/tui-win.c (tui_resize_all, tui_adjust_win_heights): Use
	resize method.
	(tui_win_info::make_invisible_and_set_new_height)
	(tui_win_info::make_visible_with_new_height): Remove.
	* tui/tui-stack.h (struct tui_locator_window) <rerender>:
	Declare.
	* tui/tui-stack.c (tui_locator_window::rerender): New method.
	* tui/tui-regs.h (struct tui_data_window) <set_new_height,
	do_make_visible_with_new_height>: Don't declare.
	<rerender>: Declare.
	* tui/tui-regs.c (tui_data_window::rerender): Rename from
	set_new_height.
	(tui_data_window::do_make_visible_with_new_height): Remove.
	* tui/tui-layout.c (show_source_disasm_command, show_data): Don't
	call tui_show_locator_content.
	(tui_gen_win_info::resize): Call rerender.
	(show_source_or_disasm_and_command): Don't call
	tui_show_locator_content.
	* tui/tui-data.h (struct tui_gen_win_info) <rerender>: New
	method.
	(struct tui_win_info) <rerender>: Declare.
	<set_new_height, make_invisible_and_set_new_height,
	make_visible_with_new_height>: Don't declare.
	* tui/tui-data.c (tui_win_list::rerender): New method.
	* tui/tui-command.h (struct tui_cmd_window)
	<do_make_visible_with_new_height>: Don't declare.
	* tui/tui-command.c
	(tui_cmd_window::do_make_visible_with_new_height): Remove.

gdb/testsuite/ChangeLog
2019-08-15  Tom Tromey  <tom@tromey.com>

	* gdb.tui/empty.exp: Enable resizing tests.