|  | 
Move-assign an overlapped handle from another.
basic_overlapped_handle & operator=(
    basic_overlapped_handle && other);
This assignment operator moves a handle from one object to another.
The other overlapped handle object from which the move will occur.
          Following the move, the moved-from object is in the same state as if constructed
          using the overlapped_handle(const executor_type&) constructor.