Unify phantom and internal fields weak handle callbacks

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index fc528b679166b625cdba24f5fade1559e8ea93ce..51cd6c81fbca51c09645528293e35e9dc2eba43f 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -408,18 +408,22 @@ void V8::MakeWeak(i::Object** object, void* parameter,
 }
 
 
-void V8::MakePhantom(i::Object** object, void* parameter,
-                     PhantomCallbackData<void>::Callback weak_callback) {
-  i::GlobalHandles::MakePhantom(object, parameter, weak_callback);
-}
-
-
 void V8::MakePhantom(
-    i::Object** object,
-    InternalFieldsCallbackData<void, void>::Callback weak_callback,
-    int internal_field_index1, int internal_field_index2) {
-  i::GlobalHandles::MakePhantom(object, weak_callback, internal_field_index1,
-                                internal_field_index2);
+    i::Object** object, void* parameter, int internal_field_index1,
+    int internal_field_index2,
+    PhantomCallbackData<void, void, void>::Callback weak_callback) {
+  if (internal_field_index1 == 0) {
+    if (internal_field_index2 == 1) {
+      i::GlobalHandles::MakePhantom(object, parameter, 2, weak_callback);
+    } else {
+      DCHECK_EQ(internal_field_index2, Object::kNoInternalFieldIndex);
+      i::GlobalHandles::MakePhantom(object, parameter, 1, weak_callback);
+    }
+  } else {
+    DCHECK_EQ(internal_field_index1, Object::kNoInternalFieldIndex);
+    DCHECK_EQ(internal_field_index2, Object::kNoInternalFieldIndex);
+    i::GlobalHandles::MakePhantom(object, parameter, 0, weak_callback);
+  }
 }