Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*)

src/lookup.cc

 // 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.
 
 #include "src/lookup.h"
 
 #include "src/bootstrapper.h"
 #include "src/deoptimizer.h"
 #include "src/elements.h"
 #include "src/field-type.h"
@@ skipping 281 matching lines @@
 
   Handle<Map> map(receiver->map(), isolate_);
 
   // Dictionary maps can always have additional data properties.
   if (map->is_dictionary_map()) {
     state_ = TRANSITION;
     if (map->IsJSGlobalObjectMap()) {
       // Install a property cell.
       auto cell = JSGlobalObject::EnsurePropertyCell(
           Handle<JSGlobalObject>::cast(receiver), name());
-      DCHECK(cell->value()->IsTheHole());
+      DCHECK(cell->value()->IsTheHole(isolate_));
       transition_ = cell;
     } else {
       transition_ = map;
     }
     return;
   }
 
   Handle<Map> transition =
       Map::TransitionToDataProperty(map, name_, value, attributes, store_mode);
   state_ = TRANSITION;
@@ skipping 373 matching lines @@
       }
     // Fall through.
     case INTERCEPTOR:
       if (!is_element && map->IsJSGlobalObjectMap()) {
         GlobalDictionary* dict = JSObject::cast(holder)->global_dictionary();
         int number = dict->FindEntry(name_);
         if (number == GlobalDictionary::kNotFound) return NOT_FOUND;
         number_ = static_cast<uint32_t>(number);
         DCHECK(dict->ValueAt(number_)->IsPropertyCell());
         PropertyCell* cell = PropertyCell::cast(dict->ValueAt(number_));
-        if (cell->value()->IsTheHole()) return NOT_FOUND;
+        if (cell->value()->IsTheHole(isolate_)) return NOT_FOUND;
         property_details_ = cell->property_details();
         has_property_ = true;
         switch (property_details_.kind()) {
           case v8::internal::kData:
             return DATA;
           case v8::internal::kAccessor:
             return ACCESSOR;
         }
       }
       return LookupInRegularHolder<is_element>(map, holder);
@@ skipping 46 matching lines @@
     case v8::internal::kAccessor:
       return ACCESSOR;
   }
 
   UNREACHABLE();
   return state_;
 }
 
 }  // namespace internal
 }  // namespace v8