TransitionArray now uses <is_data_property, name, attributes> tuple as a key, which allows to have …

src/transitions.h

Index: src/transitions.h
diff --git a/src/transitions.h b/src/transitions.h
index 2f2b2f2103cf5f9ccdd1a222939c5c8535128544..220755b59218956799366c516a9532fe07249565 100644
--- a/src/transitions.h
+++ b/src/transitions.h
@@ -87,8 +87,18 @@ class TransitionArray: public FixedArray {
                                             Handle<Map> target,
                                             SimpleTransitionFlag flag);
 
-  // Search a transition for a given property name.
-  inline int Search(Name* name);
+  // Search a  transition for a given type, property name and attributes.
+  int Search(PropertyType type, Name* name, PropertyAttributes attributes);
+
+  // Search a non-property transition (like elements kind, observe or frozen
+  // transitions).
+  inline int SearchSpecial(Symbol* symbol) { return SearchFirst(symbol); }
+
+  // Returns true for a non-property transitions like elements kind, observed
+  // or frozen transitions.
+  inline static bool IsSpecialTransition(Name* name);
+
+  inline static PropertyDetails GetTargetDetails(Name* name, Map* target);
 
   // Allocates a TransitionArray.
   static Handle<TransitionArray> Allocate(
@@ -177,6 +187,11 @@ class TransitionArray: public FixedArray {
                                          Handle<Map> target,
                                          SimpleTransitionFlag flag);
 
+  // Search a first transition for a given property name.
+  inline int SearchFirst(Name* name);
+  int SearchNext(int transition, PropertyType type, Name* name,
+                 PropertyAttributes attributes);
+
   inline void NoIncrementalWriteBarrierSet(int transition_number,
                                            Name* key,
                                            Map* target);