OrderedHashTable implementation with Set and Map interfaces

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 5e66202ded50ffeb8047f7c150377cef71423f5b..12cb2c60cd08402a466df54fa7d38efae1d4d3fc 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -142,6 +142,16 @@ Handle<ObjectHashSet> Factory::NewObjectHashSet(int at_least_space_for) {
 }
 
 
+Handle<OrderedHashSet> Factory::NewOrderedHashSet() {
+  return OrderedHashSet::Allocate(isolate(), 4);
+}
+
+
+Handle<OrderedHashMap> Factory::NewOrderedHashMap() {
+  return OrderedHashMap::Allocate(isolate(), 4);
+}
+
+
 Handle<ObjectHashTable> Factory::NewObjectHashTable(
     int at_least_space_for,
     MinimumCapacity capacity_option) {