Reland of [runtime] further dismantle AccessorInfoHandling, reducing it to the single API usecase.

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/isolate-inl.h"
@@ skipping 274 matching lines @@
                                     "DeletingProperty");
       holder_map_ = handle(holder->map(), isolate_);
       ReloadPropertyInformation();
     }
     // TODO(verwaest): Get rid of the name_ argument.
     JSReceiver::DeleteNormalizedProperty(holder, name_, number_);
     if (holder->IsJSObject()) {
       JSObject::ReoptimizeIfPrototype(Handle<JSObject>::cast(holder));
     }
   }
+  state_ = NOT_FOUND;
 }
 
 
 void LookupIterator::TransitionToAccessorProperty(
     AccessorComponent component, Handle<Object> accessor,
     PropertyAttributes attributes) {
   DCHECK(!accessor->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.
@@ skipping 363 matching lines @@
     // Fall through.
     default:
       return NOT_FOUND;
   }
   UNREACHABLE();
   return state_;
 }
 
 }  // namespace internal
 }  // namespace v8