drop interalization of strings entering global constant slots

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 7244d17b0cceaf663bb107656d6642062127ba68..12ee65958698ef1704ef6d13563a91c85e596807 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -9848,9 +9848,8 @@ class PropertyCell : public HeapObject {
   static PropertyCellType UpdatedType(Handle<PropertyCell> cell,
                                       Handle<Object> value,
                                       PropertyDetails details);
-  static Handle<Object> UpdateCell(Handle<NameDictionary> dictionary, int entry,
-                                   Handle<Object> value,
-                                   PropertyDetails details);
+  static void UpdateCell(Handle<NameDictionary> dictionary, int entry,
+                         Handle<Object> value, PropertyDetails details);
 
   static Handle<PropertyCell> InvalidateEntry(Handle<NameDictionary> dictionary,
                                               int entry);