When a complexType contains itself (recursion), this is currently blocked when producing a WSDL file.

This patch allows for such recursion.

The pactch I've supplied works for me.

But I'm not convinced that the recursion fix is 100% as ...

class SingleEntity{
       /** @var SingleEntity[] */
       public $Entities = array();

       /** @return SingleEntity */
       public function SingleEntity(){
               return new SingleEntity();
       }
}

produces types of ...

and I've no idea if that is valid.

I'm new with this, so please check this.