Explicitly declare temporary cooked frames state

src/v8threads.cc

Index: src/v8threads.cc
diff --git a/src/v8threads.cc b/src/v8threads.cc
index 80a7cd94fb8ce3b3e6e004b12c9f49e5bd001fcc..02292f6d008fd057018690ee48927062c4dfb7ef 100644
--- a/src/v8threads.cc
+++ b/src/v8threads.cc
@@ -331,6 +331,17 @@ void ThreadManager::Iterate(ObjectVisitor* v) {
 }
 
 
+void ThreadManager::IterateThreads(ThreadVisitor* v) {
+  for (ThreadState* state = ThreadState::FirstInUse();
+       state != NULL;
+       state = state->Next()) {
+    char* data = state->data();
+    data += HandleScopeImplementer::ArchiveSpacePerThread();
+    Top::IterateThread(v, data);
+  }
+}
+
+
 void ThreadManager::MarkCompactPrologue(bool is_compacting) {
   for (ThreadState* state = ThreadState::FirstInUse();
        state != NULL;