[TEST] user32/tests: Add tests for LockWindowUpdate.

[Marvin]

Hi,

While running your changed tests on Windows, 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=27237

Your paranoid android.


=== w8 (32 bit win) ===
win.c:9388: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00222200, expected ffffffff
win.c:9394: Test failed: test 2: GetPixel: got 00222200, expected 00111100
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9388: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9403: Test failed: test 5: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff

=== w864 (32 bit win) ===
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9388: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9403: Test failed: test 5: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff

=== w1064 (32 bit win) ===
win.c:9386: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9388: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00222200, expected ffffffff
win.c:9394: Test failed: test 2: GetPixel: got 00222200, expected 00111100
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9388: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9403: Test failed: test 5: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff

=== w864 (64 bit win) ===
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9403: Test failed: test 5: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff

=== w1064 (64 bit win) ===
win.c:9386: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9388: Test failed: test 0: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00222200, expected ffffffff
win.c:9394: Test failed: test 2: GetPixel: got 00222200, expected 00111100
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff
win.c:9403: Test failed: test 5: GetPixel: got 00222200, expected 00111100
win.c:9391: Test failed: test 1: GetPixel: got 00111100, expected ffffffff
win.c:9400: Test failed: test 4: GetPixel: got 00222200, expected ffffffff