Revert of Replace all remaining Oddball checks with new function

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 113 matching lines @@
   if (index != kMaxUInt32 && receiver->IsString() &&
       index < static_cast<uint32_t>(String::cast(*receiver)->length())) {
     // TODO(verwaest): Speed this up. Perhaps use a cached wrapper on the native
     // context, ensuring that we don't leak it into JS?
     Handle<JSFunction> constructor = isolate->string_function();
     Handle<JSObject> result = isolate->factory()->NewJSObject(constructor);
     Handle<JSValue>::cast(result)->set_value(*receiver);
     return result;
   }
   auto root = handle(receiver->GetRootMap(isolate)->prototype(), isolate);
-  if (root->IsNull(isolate)) {
+  if (root->IsNull()) {
     unsigned int magic = 0xbbbbbbbb;
     isolate->PushStackTraceAndDie(magic, *receiver, NULL, magic);
   }
   return Handle<JSReceiver>::cast(root);
 }
 
 
 Handle<Map> LookupIterator::GetReceiverMap() const {
   if (receiver_->IsNumber()) return factory()->heap_number_map();
   return handle(Handle<HeapObject>::cast(receiver_)->map(), isolate_);
@@ skipping 221 matching lines @@
     if (holder->IsJSObject()) {
       JSObject::ReoptimizeIfPrototype(Handle<JSObject>::cast(holder));
     }
   }
   state_ = NOT_FOUND;
 }
 
 void LookupIterator::TransitionToAccessorProperty(
     Handle<Object> getter, Handle<Object> setter,
     PropertyAttributes attributes) {
-  DCHECK(!getter->IsNull(isolate_) || !setter->IsNull(isolate_));
+  DCHECK(!getter->IsNull() || !setter->IsNull());
   // Can only be called when the receiver is a JSObject. JSProxy has to be
   // handled via a trap. Adding properties to primitive values is not
   // observable.
   Handle<JSObject> receiver = GetStoreTarget();
 
   if (!IsElement() && !receiver->map()->is_dictionary_map()) {
     Handle<Map> old_map(receiver->map(), isolate_);
 
     if (!holder_.is_identical_to(receiver)) {
       holder_ = receiver;
@@ skipping 365 matching lines @@
     case v8::internal::kAccessor:
       return ACCESSOR;
   }
 
   UNREACHABLE();
   return state_;
 }
 
 }  // namespace internal
 }  // namespace v8