That resulted in error such as:
qobject_impl.h(82) : error C2078: too many initializers
This should have been tested by tst_QObject::connectManyArguments, but
the test did not work because the detection of defined QMetaType was broken
for const references. That will be fixed in a latter commit.
Task-number: QTBUG-29130
Change-Id: I78514c251358c0e8adf33af724d87ab114230cd3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>