[ic] Invalidate prototype validity cell when a slow prototype becomes fast.

src/factory.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/factory.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 2201 matching lines @@
 
 void Factory::ReinitializeJSGlobalProxy(Handle<JSGlobalProxy> object,
                                         Handle<JSFunction> constructor) {
   DCHECK(constructor->has_initial_map());
   Handle<Map> map(constructor->initial_map(), isolate());
   Handle<Map> old_map(object->map(), isolate());
 
   // The proxy's hash should be retained across reinitialization.
   Handle<Object> hash(object->hash(), isolate());
 
-  JSObject::InvalidatePrototypeChains(*old_map);
   if (old_map->is_prototype_map()) {
     map = Map::Copy(map, "CopyAsPrototypeForJSGlobalProxy");
     map->set_is_prototype_map(true);
   }
-  JSObject::UpdatePrototypeUserRegistration(old_map, map, isolate());
+  JSObject::NotifyMapChange(old_map, map, isolate());
 
   // Check that the already allocated object has the same size and type as
   // objects allocated using the constructor.
   DCHECK(map->instance_size() == old_map->instance_size());
   DCHECK(map->instance_type() == old_map->instance_type());
 
   // Allocate the backing storage for the properties.
   Handle<FixedArray> properties = empty_fixed_array();
 
   // In order to keep heap in consistent state there must be no allocations
@@ skipping 489 matching lines @@
       Handle<JSFixedArrayIterator>::cast(NewJSObjectFromMap(map));
   iterator->set_initial_next(*next);
   iterator->set_array(*array);
   iterator->set_index(0);
   iterator->InObjectPropertyAtPut(JSFixedArrayIterator::kNextIndex, *next);
   return iterator;
 }
 
 }  // namespace internal
 }  // namespace v8