Avoid selecting tooltip windows and frames (Bug#47207)

Avoid selecting tooltip windows and frames (Bug#47207)

* src/frame.c (do_switch_frame): Don't switch to a tooltip frame.
(Fselect_frame): Do not select a tooltip frame.
* src/w32fns.c (Fx_show_tip):
* src/xfns.c (Fx_show_tip): Set the tooltip window's
`no-other-window' parameter so `other-window' will skip it.
* src/window.c (select_window): Do not select a tooltip window.
(candidate_window_p): Make sure MINIBUF is live.
(decode_next_window_args): Make sure that W's frame's minibuffer
window is live before including it.
(Qno_other_window): New symbol.