Found more issues:
- quint8 and qint8 (signed and unsigned char) actually match an
integral overload (probably int/uint), and _not_ (char),
- char8_t (only in C++20 builds) and (at least on non-Windows) wchar_t
are incorrectly treated as numeric types,
- qfloat16 breaks if QFLOAT16_IS_NATIVE.
Created a few tasks to track these.
Task-number: QTBUG-126053
Task-number: QTBUG-126054
Task-number: QTBUG-126055
Pick-to: 6.7 6.5 6.2
Change-Id: Iaf64929e3fae257d5dd283f555bb71ea2908cc94
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 967736b96ba06bfdfdf553b2c3720d7adc4a921c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>