[builtins] Migrate Object.setPrototypeOf to C++.

src/bootstrapper.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/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/ieee754.h"
 #include "src/code-stubs.h"
@@ skipping 1143 matching lines @@
     native_context()->set_object_define_property(*object_define_property);
 
     Handle<JSFunction> object_freeze = SimpleInstallFunction(
         object_function, "freeze", Builtins::kObjectFreeze, 1, false);
     native_context()->set_object_freeze(*object_freeze);
 
     Handle<JSFunction> object_get_prototype_of = SimpleInstallFunction(
         object_function, "getPrototypeOf", Builtins::kObjectGetPrototypeOf,
         1, false);
     native_context()->set_object_get_prototype_of(*object_get_prototype_of);
+    SimpleInstallFunction(object_function, "setPrototypeOf",
+                          Builtins::kObjectSetPrototypeOf, 2, false);
 
     Handle<JSFunction> object_is_extensible = SimpleInstallFunction(
         object_function, "isExtensible", Builtins::kObjectIsExtensible,
         1, false);
     native_context()->set_object_is_extensible(*object_is_extensible);
 
     Handle<JSFunction> object_is_frozen = SimpleInstallFunction(
         object_function, "isFrozen", Builtins::kObjectIsFrozen, 1, false);
     native_context()->set_object_is_frozen(*object_is_frozen);
 
@@ skipping 3279 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8