Introduce LookupIterator::Restart() and use it

src/lookup.h

 // Copyright 2014 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_LOOKUP_H_
 #define V8_LOOKUP_H_
 
 #include "src/factory.h"
 #include "src/isolate.h"
 #include "src/objects.h"
@@ skipping 144 matching lines @@
             ? LookupIterator(isolate, receiver, index, holder, configuration)
             : LookupIterator(receiver, name, holder, configuration);
     it.name_ = name;
     return it;
   }
 
   static LookupIterator PropertyOrElement(
       Isolate* isolate, Handle<Object> receiver, Handle<Object> key,
       bool* success, Configuration configuration = DEFAULT);
 
+  void Restart() { RestartInternal(InterceptorState::kUninitialized); }
+
   Isolate* isolate() const { return isolate_; }
   State state() const { return state_; }
 
   Handle<Name> name() const {
     DCHECK(!IsElement());
     return name_;
   }
   Handle<Name> GetName() {
     if (name_.is_null()) {
       DCHECK(IsElement());
@@ skipping 78 matching lines @@
   enum class InterceptorState {
     kUninitialized,
     kSkipNonMasking,
     kProcessNonMasking
   };
 
   Handle<Map> GetReceiverMap() const;
 
   MUST_USE_RESULT inline JSReceiver* NextHolder(Map* map);
   inline State LookupInHolder(Map* map, JSReceiver* holder);
-  void RestartLookupForNonMaskingInterceptors();
+  void RestartLookupForNonMaskingInterceptors() {
+    RestartInternal(InterceptorState::kProcessNonMasking);
+  }
+  void RestartInternal(InterceptorState interceptor_state);
   State LookupNonMaskingInterceptorInHolder(Map* map, JSReceiver* holder);
   Handle<Object> FetchValue() const;
   void ReloadPropertyInformation();
   bool SkipInterceptor(JSObject* holder);
   bool HasInterceptor(Map* map) const;
   bool InternalHolderIsReceiverOrHiddenPrototype() const;
   InterceptorInfo* GetInterceptor(JSObject* holder) const;
 
   bool check_hidden() const { return (configuration_ & kHidden) != 0; }
   bool check_interceptor() const {
@@ skipping 43 matching lines @@
   Handle<Map> holder_map_;
   const Handle<JSReceiver> initial_holder_;
   uint32_t number_;
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_LOOKUP_H_