In order to modify a container through an iterable, we need the original
container to be mutable. The iterable, then, is not a conversion of the
container, but rather a view on the container. The concept may be
extended to other types.
In order to facilitate this, provide a set of methods in QMetaType and
QVariant similar to the convert family. The new methods are non-const
and expect the original value to stay available during the life time of
the view.
Change-Id: I363621033f7fc600edcea2acb786820ccba49c86
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
217a25a6bf