Remove the dependency of Zone on Isolate

src/type-info.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_TYPE_INFO_H_
 #define V8_TYPE_INFO_H_
 
 #include "src/allocation.h"
 #include "src/globals.h"
 #include "src/types.h"
 #include "src/zone-inl.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class SmallMapList;
 
 
 class TypeFeedbackOracle: public ZoneObject {
  public:
-  TypeFeedbackOracle(Handle<Code> code,
+  TypeFeedbackOracle(Isolate* isolate, Zone* zone, Handle<Code> code,
                      Handle<TypeFeedbackVector> feedback_vector,
-                     Handle<Context> native_context, Zone* zone);
+                     Handle<Context> native_context);
 
   bool LoadIsUninitialized(TypeFeedbackId id);
   bool LoadIsUninitialized(FeedbackVectorICSlot slot);
   bool StoreIsUninitialized(TypeFeedbackId id);
   bool CallIsUninitialized(FeedbackVectorICSlot slot);
   bool CallIsMonomorphic(FeedbackVectorICSlot slot);
   bool KeyedArrayCallIsHoley(TypeFeedbackId id);
   bool CallNewIsMonomorphic(FeedbackVectorSlot slot);
 
   // TODO(1571) We can't use ForInStatement::ForInType as the return value due
@@ skipping 59 matching lines @@
                   Token::Value operation);
 
   void CompareType(TypeFeedbackId id,
                    Type** left,
                    Type** right,
                    Type** combined);
 
   Type* CountType(TypeFeedbackId id);
 
   Zone* zone() const { return zone_; }
-  Isolate* isolate() const { return zone_->isolate(); }
+  Isolate* isolate() const { return isolate_; }
 
  private:
   void CollectReceiverTypes(TypeFeedbackId id,
                             Handle<String> name,
                             Code::Flags flags,
                             SmallMapList* types);
   template <class T>
   void CollectReceiverTypes(T* obj, Handle<String> name, Code::Flags flags,
                             SmallMapList* types);
 
@@ skipping 15 matching lines @@
   // there is no information.
   Handle<Object> GetInfo(TypeFeedbackId id);
 
   // Returns an element from the type feedback vector. Returns undefined
   // if there is no information.
   Handle<Object> GetInfo(FeedbackVectorSlot slot);
   Handle<Object> GetInfo(FeedbackVectorICSlot slot);
 
  private:
   Handle<Context> native_context_;
+  Isolate* isolate_;
   Zone* zone_;
   Handle<UnseededNumberDictionary> dictionary_;
   Handle<TypeFeedbackVector> feedback_vector_;
 
   DISALLOW_COPY_AND_ASSIGN(TypeFeedbackOracle);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPE_INFO_H_