Merge remote-tracking branch 'AmazingPP/topic/amazingpp/table-values-and-keys'

* AmazingPP/topic/amazingpp/table-values-and-keys:
  Add more test cases
  Add table_keys function
  Add table_values function

src/Val.h

@@ -932,6 +932,8 @@ public:
 
 	const PDict<TableEntryVal>* Get() const { return table_val; }
 
+	const detail::CompositeHash* GetTableHash() const { return table_hash; }
+
 	// Returns the size of the table.
 	int Size() const;
 	int RecursiveSize() const;