[ASTableNode] Minor fix so visibleNodes is in the same position as declaration in ASCollectionNode.

Author: appleguy

AsyncDisplayKit/ASTableNode.h

@@ -307,6 +307,13 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic, readonly) NSInteger numberOfSections;
 
+/**
+ * Similar to -visibleCells.
+ *
+ * @return an array containing the nodes being displayed on screen. This must be called on the main thread.
+ */
+@property(readonly, copy) NSArray<__kindof ASCellNode *> *visibleNodes;
+
 /**
  * Retrieves the node for the row at the given index path.
  */
@@ -417,13 +424,6 @@ NS_ASSUME_NONNULL_BEGIN
  */
 - (NSInteger)tableNode:(ASTableNode *)tableNode numberOfRowsInSection:(NSInteger)section;
 
-/**
- * Similar to -visibleCells.
- *
- * @return an array containing the nodes being displayed on screen. This must be called on the main thread.
- */
-@property(readonly, copy) NSArray<__kindof ASCellNode *> *visibleNodes;
-
 /**
  * Asks the data source for a block to create a node to represent the row at the given index path.
  * The block will be run by the table node concurrently in the background before the row is inserted