“[29] The court's powers to grant appropriate relief under section 113(7), (7A), (7B) and (7C) are widely drawn. They afford the court an ample range of remedies to overcome unlawfulness in the various circumstances in which it may occur in a plan-making process. As was recognised by the judge in the University of Bristol case[2013] EWHC 231 (Admin) , the provisions in subsection (7A), (7B) and (7C) were a deliberate expansion of the court's powers to grant relief where a local plan is successfully challenged under section 113. They introduce greater flexibility in the remedies the court may fashion to deal with unlawfulness, having regard to the stage of the process at which it has arisen, and avoiding—when it is possible to do so—uncertainty, expense and delay. They include a broad range of potential requirements in directions given under subsection (7A), all of which go to “the action to be taken in relation to the [relevant] document”