js accessor creation on Template

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index ad5b0e3e5a87dcf0a9e1e28e2d348cc7d44ecd34..ef0f3581b30d375dbd647b66b54c8502686f8c74 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4454,6 +4454,7 @@ ACCESSORS(Box, value, Object, kValueOffset)
 
 ACCESSORS(AccessorPair, getter, Object, kGetterOffset)
 ACCESSORS(AccessorPair, setter, Object, kSetterOffset)
+ACCESSORS_TO_SMI(AccessorPair, access_flags, kAccessFlagsOffset)
 
 ACCESSORS(AccessCheckInfo, named_callback, Object, kNamedCallbackOffset)
 ACCESSORS(AccessCheckInfo, indexed_callback, Object, kIndexedCallbackOffset)
@@ -5850,6 +5851,36 @@ bool AccessorInfo::IsCompatibleReceiver(Object* receiver) {
 }
 
 
+void AccessorPair::set_access_flags(v8::AccessControl access_control) {
+  int current = access_flags()->value();
+  current = BooleanBit::set(current,
+                            kProhibitsOverwritingBit,
+                            access_control & PROHIBITS_OVERWRITING);
+  current = BooleanBit::set(current,
+                            kAllCanReadBit,
+                            access_control & ALL_CAN_READ);
+  current = BooleanBit::set(current,
+                            kAllCanWriteBit,
+                            access_control & ALL_CAN_WRITE);
+  set_access_flags(Smi::FromInt(current));
+}
+
+
+bool AccessorPair::all_can_read() {
+  return BooleanBit::get(access_flags(), kAllCanReadBit);
+}
+
+
+bool AccessorPair::all_can_write() {
+  return BooleanBit::get(access_flags(), kAllCanWriteBit);
+}
+
+
+bool AccessorPair::prohibits_overwriting() {
+  return BooleanBit::get(access_flags(), kProhibitsOverwritingBit);
+}
+
+
 template<typename Shape, typename Key>
 void Dictionary<Shape, Key>::SetEntry(int entry,
                                       Object* key,