[Bug 54871] New: kernel32:console - testScroll() fails on Windows 10 1909

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54871

Bug ID: 54871
           Summary: kernel32:console - testScroll() fails on Windows 10
                    1909
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]

kernel32:console - testScroll() fails on Windows 10 1909:

console.c:704: Test failed: ScrollConsoleScreenBufferA failed: 87

See https://test.winehq.org/data/patterns.html#kernel32:console

Where 87 == ERROR_INVALID_PARAMETER

The failing call is:

/* clipping, src & dst rect do overlap */
    ...
    ret = ScrollConsoleScreenBufferA(hCon, &scroll, &clip, dst, &ci);

The parameters are scroll: 0x0-10x6 dst 2x0 clip 5x3-16x10 [1]

Some debugging shows that:
* The test is not skipped and succeeds in all other Windows 10 versions,
including Windows 10 1809 and 2009.
* Despite returning an error ScrollConsoleScreenBufferA() does what it was
asked, even on Windows 10 1909! This is why the loop that checks the content of
the screen does not report a ton of failures.
* ScrollConsoleScreenBufferA() stops returning an error when the destination
coordinates are within the clip rectangle.

[1] I'm not sure the 0 Y shift was intentional. It's the result of integer
rounding in 7/2-3 = 0.5 -> 0. So this is really only testing an horizontal
shift.