176   typedef JSObjectsCluster Key;  typedef
178   static const Key kNoKey;
180   static int Compare(const Key& a, const Key& b) {  in Compare()
181     return Key::Compare(a, b);  in Compare()
219   typedef JSObjectsCluster Key;  typedef
221   static const Key kNoKey;
223   static int Compare(const Key& a, const Key& b) {  in Compare()
224     return Key::Compare(a, b);  in Compare()
267     typedef JSObjectsCluster Key;  typedef
269     static const Key kNoKey;
271     static int Compare(const Key& a, const Key& b) {  in Compare()
272       return Key::Compare(a, b);  in Compare()