This makes it possible to do things like
QVariant::fromValue(new SomeObject);
without first using Q_DECLARE_METATYPE(Something*)
This functionality was originally part of
http://codereview.qt-project.org/#change,11710 but was rejected
because the functionality was based on specialization of
QVariant::fromValue which could be dangerous.
This new implementation doesn't have such danger.
Change-Id: I83fe941b6984be54469bc6b9191f6eacaceaa036
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
eb24dfcccb