Expose dbRecursiveShapeIterator::next(RecursiveShapeReceiver*)

This is extremely useful when you want the flexibility of pull-based
iteration, but you also need notifications when entering and
leaving cells.

src/db/db/dbRecursiveShapeIterator.h

@@ -772,6 +772,15 @@ class DB_PUBLIC RecursiveShapeIterator
     next (0);
   }
 
+  /**
+   *  @brief Increments the iterator with `RecursiveShapeReceiver` customization
+   *
+   *  This combines the flexibility of pull-based iteration with the
+   *  extra notifications and iteration control provided by
+   *  `RecursiveShapeReceiver`.
+   */
+  void next (RecursiveShapeReceiver *receiver);
+
   /**
    *  @brief Comparison of iterators - equality
    */
@@ -881,7 +890,6 @@ class DB_PUBLIC RecursiveShapeIterator
   void skip_inst_iter_for_complex_region () const;
   void validate (RecursiveShapeReceiver *receiver) const;
   void start_shapes () const;
-  void next (RecursiveShapeReceiver *receiver);
   void next_shape (RecursiveShapeReceiver *receiver) const;
   void new_inst (RecursiveShapeReceiver *receiver) const;
   void new_inst_member (RecursiveShapeReceiver *receiver) const;