Move prototype metadata from internal properties to prototype maps

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 5dac6a1ada3454980e348caf6a76b8268d51ee0d..84e0dc5715c1abbb41b60fb77c1d72661001ebee 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -51,6 +51,17 @@ Handle<Box> Factory::NewBox(Handle<Object> value) {
 }
 
 
+Handle<PrototypeInfo> Factory::NewPrototypeInfo(
+    Handle<JSObject> prototype_obj) {
+  Handle<PrototypeInfo> result =
+      Handle<PrototypeInfo>::cast(NewStruct(PROTOTYPE_INFO_TYPE));
+  result->set_prototype_object(*prototype_obj);
+  result->set_prototype_users(Smi::FromInt(0));

[Toon Verwaest, 2015/03/26 16:15:33]

Something like WeakFixedArray::Empty() perhaps?

[Jakob Kummerow, 2015/03/31 14:20:21]

Done.

+  result->set_validity_cell(Smi::FromInt(0));
+  return result;
+}
+
+
 Handle<Oddball> Factory::NewOddball(Handle<Map> map,
                                     const char* to_string,
                                     Handle<Object> to_number,