This ammends 601ce9e08a, which added
a new test case for the internal Qt APIs. The test was not
getting executed by coin as it wasn't included in the io.pro file,
and trying to fix that generates link errors on Windows, since these
internal APIs depend on other internal APIs.
Short of bootstrapping much of QtCore into this test case, the only
sensible option is to remove this test case again, and cover the
testing when the public API is added in a follow up commit.
At the same time, address those failures that were discovered
on platforms that could build the test, and fix compilation on
iOS platforms in Coin.
Change-Id: Id31b43c9df9f205476c48bccb6b87c7a53ed15c5
Reviewed-by: Vitaly Fanaskov <vitaly.fanaskov@qt.io>
336b3bb0dd