Use the LookupIterator for SetElement and friends

src/runtime/runtime-debug.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/v8.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/debug.h"
@@ skipping 1867 matching lines @@
         JavaScriptFrameIterator additional_frame_it(isolate, break_frame_id);
         // If our frame is a top frame and we are stepping, we can do step-in
         // at this place.
         accept = additional_frame_it.frame()->id() == id;
       }
     }
     if (accept) {
       if (location.IsStepInLocation()) {
         Smi* position_value = Smi::FromInt(location.position());
         RETURN_FAILURE_ON_EXCEPTION(
-            isolate, JSObject::SetElement(
-                         array, index, Handle<Object>(position_value, isolate),
-                         NONE, SLOPPY));
+            isolate,
+            JSObject::SetElement(array, index, handle(position_value, isolate),
+                                 SLOPPY));
         index++;
       }
     }
   }
   return *array;
 }
 
 
 static const int kScopeDetailsTypeIndex = 0;
 static const int kScopeDetailsObjectIndex = 1;
@@ skipping 1313 matching lines @@
   return Smi::FromInt(isolate->debug()->is_active());
 }
 
 
 RUNTIME_FUNCTION(Runtime_DebugBreakInOptimizedCode) {
   UNIMPLEMENTED();
   return NULL;
 }
 }  // namespace internal
 }  // namespace v8