Phantom references support internal fields

src/debug.cc

Index: src/debug.cc
diff --git a/src/debug.cc b/src/debug.cc
index 86bfbbcb643475ce65fd8dfaae5384ccaa052f54..7de9d7428eaefaa5fce2fe0c35abbbf3f210ef9a 100644
--- a/src/debug.cc
+++ b/src/debug.cc
@@ -695,8 +695,7 @@ void ScriptCache::HandleWeakScript(
 }
 
 
-void Debug::HandleWeakDebugInfo(
-    const v8::WeakCallbackData<v8::Value, void>& data) {
+void Debug::HandlePhantomDebugInfo(const v8::PhantomCallbackData<void>& data) {
   Debug* debug = reinterpret_cast<Isolate*>(data.GetIsolate())->debug();
   DebugInfoListNode* node =
       reinterpret_cast<DebugInfoListNode*>(data.GetParameter());
@@ -715,9 +714,8 @@ DebugInfoListNode::DebugInfoListNode(DebugInfo* debug_info): next_(NULL) {
   // Globalize the request debug info object and make it weak.
   GlobalHandles* global_handles = debug_info->GetIsolate()->global_handles();
   debug_info_ = Handle<DebugInfo>::cast(global_handles->Create(debug_info));
-  GlobalHandles::MakeWeak(reinterpret_cast<Object**>(debug_info_.location()),
-                          this, Debug::HandleWeakDebugInfo,
-                          GlobalHandles::Phantom);
+  GlobalHandles::MakePhantom(reinterpret_cast<Object**>(debug_info_.location()),
+                             this, Debug::HandlePhantomDebugInfo);
 }