GlobalDictionary now stores PropertyDetails in PropertyCells.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 76209c42b5ec1cd198118589b78909cf3329478a..55a08f4d680d017228ca693974f242bc36048bbc 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -2914,6 +2914,7 @@ AllocationResult Heap::AllocatePropertyCell() {
   PropertyCell* cell = PropertyCell::cast(result);
   cell->set_dependent_code(DependentCode::cast(empty_fixed_array()),
                            SKIP_WRITE_BARRIER);
+  cell->set_property_details(PropertyDetails(Smi::FromInt(0)));
   cell->set_value(the_hole_value());
   return result;
 }