Add flag to warn all introspection errors
Add flag to warn all introspection errors

Makes it easier to spot introspection problems.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2308

GNOME/clutter-gtk,Distrotech/clutter-gtk,GNOME/clutter-gtk,Distrotech/clutter-gtk,Distrotech/clutter-gtk