Actually also advance the iterator in StorePropertyWithInterceptor

src/ic/ic.cc

 // Copyright 2012 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/api.h"
 #include "src/arguments.h"
 #include "src/base/bits.h"
@@ skipping 2670 matching lines @@
   HandleScope scope(isolate);
   DCHECK(args.length() == 3);
   StoreIC ic(IC::NO_EXTRA_FRAME, isolate);
   Handle<JSObject> receiver = args.at<JSObject>(0);
   Handle<Name> name = args.at<Name>(1);
   Handle<Object> value = args.at<Object>(2);
 #ifdef DEBUG
   PrototypeIterator iter(isolate, receiver,
                          PrototypeIterator::START_AT_RECEIVER);
   bool found = false;
-  while (!iter.IsAtEnd(PrototypeIterator::END_AT_NON_HIDDEN)) {
+  for (; !iter.IsAtEnd(PrototypeIterator::END_AT_NON_HIDDEN); iter.Advance()) {
     Handle<Object> current = PrototypeIterator::GetCurrent(iter);
     if (current->IsJSObject() &&
         Handle<JSObject>::cast(current)->HasNamedInterceptor()) {
       found = true;
       break;
     }
   }
   DCHECK(found);
 #endif
   Handle<Object> result;
@@ skipping 34 matching lines @@
 static const Address IC_utilities[] = {
 #define ADDR(name) FUNCTION_ADDR(name),
     IC_UTIL_LIST(ADDR) NULL
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; }
 }
 }  // namespace v8::internal