[PATCH 5/7] win32u: Move NtUserInternalGetWindowIcon implementation from user32.

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=116514

Your paranoid android.


=== debian11 (32 bit Chinese:China report) ===

user32:
msg.c:6881: Test failed: SetFocus(hwnd) on a button: 4: the msg 0x0007 was expected, but got msg 0x0005 instead
msg.c:6881: Test failed: SetFocus(hwnd) on a button: 5: the msg 0x0138 was expected, but got msg 0x030f instead
msg.c:6881: Test failed: SetFocus(hwnd) on a button: 6: the msg 0x0111 was expected, but got msg 0x001c instead
msg.c:6881: Test failed: SetFocus(hwnd) on a button: 8: the msg 0x8000 was expected, but got msg 0x0086 instead
msg.c:6881: Test failed: SetFocus(hwnd) on a button: 9: the msg sequence is not complete: expected 0000 - actual 0006