The QJSON code used casts to (QJSON*) directly, instead of OBJECT_CHECK.
There were even some functions using object_dynamic_cast() calls
followed by assert(), which is exactly what OBJECT_CHECK does (by
calling object_dynamic_cast_assert()).
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>