correctly invalidate global cells

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 30 matching lines @@
     // Set state_ to BEFORE_PROPERTY to ensure that the next lookup will be a
     // PROPERTY lookup.
     BEFORE_PROPERTY = INTERCEPTOR
   };
 
   LookupIterator(Handle<Object> receiver, Handle<Name> name,
                  Configuration configuration = PROTOTYPE_CHAIN)
       : configuration_(ComputeConfiguration(configuration, name)),
         state_(NOT_FOUND),
         exotic_index_state_(ExoticIndexState::kUninitialized),
-        property_details_(NONE, v8::internal::DATA, 0),
+        property_details_(NONE, v8::internal::DATA, 0,
+                          PropertyCellType::kInvalid),
         isolate_(name->GetIsolate()),
         name_(name),
         receiver_(receiver),
         number_(DescriptorArray::kNotFound) {
     holder_ = GetRoot();
     holder_map_ = handle(holder_->map(), isolate_);
     Next();
   }
 
   LookupIterator(Handle<Object> receiver, Handle<Name> name,
                  Handle<JSReceiver> holder,
                  Configuration configuration = PROTOTYPE_CHAIN)
       : configuration_(ComputeConfiguration(configuration, name)),
         state_(NOT_FOUND),
         exotic_index_state_(ExoticIndexState::kUninitialized),
-        property_details_(NONE, v8::internal::DATA, 0),
+        property_details_(NONE, v8::internal::DATA, 0,
+                          PropertyCellType::kInvalid),
         isolate_(name->GetIsolate()),
         name_(name),
         holder_map_(holder->map(), isolate_),
         receiver_(receiver),
         holder_(holder),
         number_(DescriptorArray::kNotFound) {
     Next();
   }
 
   Isolate* isolate() const { return isolate_; }
@@ skipping 122 matching lines @@
   Handle<Object> receiver_;
   Handle<JSReceiver> holder_;
 
   int number_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LOOKUP_H_