In window.el tell whether functions operate on valid, live or any windows.

In window.el tell whether functions operate on valid, live or any windows.

* window.el (window-child, window-child-count, window-last-child)
(window-normalize-window, window-combined-p)
(window-combinations, window-atom-root, window-min-size)
(window-sizable, window-sizable-p, window-size-fixed-p)
(window-min-delta, window-max-delta, window--resizable)
(window--resizable-p, window-resizable, window-total-size)
(window-full-height-p, window-full-width-p, window-body-size)
(window-at-side-p, adjust-window-trailing-edge, maximize-window)
(minimize-window, window-deletable-p, delete-window)
(delete-other-windows, set-window-buffer-start-and-point)
(next-buffer, previous-buffer, split-window, balance-windows-2)
(set-window-text-height, window-buffer-height)
(fit-window-to-buffer, shrink-window-if-larger-than-buffer)
(truncated-partial-width-window-p): Minor code adjustments.  In
doc-strings state whether the argument window has to denote a
live, valid or any window.