Handle the ActionConstantPool action.

def _handle_actionconstantpool(self, _):
        """Handle the ActionConstantPool action."""
        obj = _make_object("ActionConstantPool")
        obj.Count = count = unpack_ui16(self._src)
        obj.ConstantPool = pool = []
        for _ in range(count):
            pool.append(self._get_struct_string())
        yield obj