Set the contents of a
typeof (Object) derived
Value to v_object.
set_object increases the reference count of v_object (the
Value holds a reference to v_object). If you do not wish to increase the
reference count of the object (i.e. you wish to pass your current reference to the Value
because you no longer need it), use take_object instead.
It is important that your Value holds a reference to v_object (either its own,
or one it has taken) to ensure that the object won't be destroyed while the Value still
exists).
| v_object | object value to be set |