Disable useless-cast warning for moc generated code

The useless-cast gcc warning is disabled in the files generated by
the moc. A typical warning is like

using_t = void(Counter::*)(int );
if (*reinterpret_cast<_t*>(_a[1]) ==
    static_cast<_t>(&Counter::valueChanged)) {
        *result = 0;
         return;
    }

Removing the static cast results in a compilation error
"address of overloaded function with no contextual type-of
information" in moc_myobject.cpp files.

Checking whether we have an overload set or a single function
might be too much effort for too little benefit and may not worth
it.

Fixes: QTBUG-71938
Change-Id: I6f67e163a3493b51fb95f54218ce6bf9a302f824
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

0 files changed, 0 insertions, 0 deletions