Move CopyValuesTo to SeededNumberDictionary.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 102dc0d698fe0949ee2115c91fcae76407351d2a..0bbb3955da2ef032fb0bae54c7546e01fb41a45f 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -3607,10 +3607,6 @@ class Dictionary: public HashTable<Derived, Shape, Key> {
     return DerivedHashTable::Shrink(dictionary, key);
   }
 
-  // Sorting support
-  // TODO(dcarney): templatize or move to SeededNumberDictionary
-  void CopyValuesTo(FixedArray* elements);
-
   // Returns the number of elements in the dictionary filtering out properties
   // with the specified attributes.
   int NumberOfElementsFilterAttributes(PropertyFilter filter);
@@ -3877,6 +3873,9 @@ class SeededNumberDictionary
   // non-configurable, non-enumerable, or have getters/setters.
   bool HasComplexElements();
 
+  // Sorting support
+  void CopyValuesTo(FixedArray* elements);
+
   // If slow elements are required we will never go back to fast-case
   // for the elements kept in this dictionary.  We require slow
   // elements if an element has been added at an index larger than