[builtins] Migrate more Date builtins to TurboFan builtins.

src/objects.h

 // Copyright 2015 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 <iosfwd>
 #include <memory>
 
@@ skipping 8499 matching lines @@
   static double CurrentTimeValue(Isolate* isolate);
 
   // Returns the date field with the specified index.
   // See FieldIndex for the list of date fields.
   static Object* GetField(Object* date, Smi* index);
 
   static Handle<Object> SetValue(Handle<JSDate> date, double v);
 
   void SetValue(Object* value, bool is_value_nan);
 
-  // ES6 section 20.3.4.45 Date.prototype [ @@toPrimitive ]
-  static MUST_USE_RESULT MaybeHandle<Object> ToPrimitive(
-      Handle<JSReceiver> receiver, Handle<Object> hint);
-
   // Dispatched behavior.
   DECLARE_PRINTER(JSDate)
   DECLARE_VERIFIER(JSDate)
 
   // The order is important. It must be kept in sync with date macros
   // in macros.py.
   enum FieldIndex {
     kDateValue,
     kYear,
     kMonth,
@@ skipping 3219 matching lines @@
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #include "src/objects/object-macros-undef.h"
 
 #endif  // V8_OBJECTS_H_