Ensure prototypes always stay fast by turning them fast again after an operation that turned them s…

src/objects.h

 // Copyright 2012 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/builtins.h"
@@ skipping 2179 matching lines @@
                                     Handle<Object> value);
 
   // Sets the property value in a normalized object given (key, value, details).
   // Handles the special representation of JS global objects.
   static void SetNormalizedProperty(Handle<JSObject> object,
                                     Handle<Name> key,
                                     Handle<Object> value,
                                     PropertyDetails details);
 
   static void OptimizeAsPrototype(Handle<JSObject> object);
+  static void ReoptimizeIfPrototype(Handle<JSObject> object);
 
   // Retrieve interceptors.
   InterceptorInfo* GetNamedInterceptor();
   InterceptorInfo* GetIndexedInterceptor();
 
   // Used from JSReceiver.
   MUST_USE_RESULT static Maybe<PropertyAttributes>
       GetPropertyAttributesWithInterceptor(Handle<JSObject> holder,
                                            Handle<Object> receiver,
                                            Handle<Name> name);
@@ skipping 9053 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_