user32/tests: add tests for WM_SETICON

[Dmitry Timoshkov]

"Kirill K. Smirnov" <lich at math.spbu.ru> wrote:

> +    /* Message sequences for WM_SETICON */
> +    hwnd = CreateWindowExA(0, "TestWindowClass", NULL,
> +                           WS_OVERLAPPEDWINDOW,
> +                           CW_USEDEFAULT, CW_USEDEFAULT, 300, 300, 0,
> +                           NULL, NULL, 0);
> +    flush_sequence();
> +    SendMessage(hwnd, WM_SETICON, ICON_SMALL, (LPARAM)LoadIcon(0, IDI_APPLICATION));
> +    ok_sequence(WmSetIcon, "WM_SETICON for window with caption", FALSE);

This code doesn't show behaviour of a more interesting case - a visible window.

-- 
Dmitry.