[string] Move String.p.toLowerCase to CSA

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 4066 matching lines @@
       JSReceiver::cast(native_context()->exports_container()));
 
   Handle<JSObject> string_prototype(
       JSObject::cast(native_context()->string_function()->prototype()));
 
   {
     Handle<String> name = factory()->InternalizeUtf8String("toLowerCase");
     SetFunction(string_prototype,
                 SimpleCreateFunction(isolate(), name,
                                      Builtins::kStringPrototypeToLowerCaseIntl,
-                                     0, false),
+                                     0, true),
                 name);
   }
   {
     Handle<String> name = factory()->InternalizeUtf8String("toUpperCase");
     SetFunction(string_prototype,
                 SimpleCreateFunction(isolate(), name,
                                      Builtins::kStringPrototypeToUpperCaseIntl,
                                      0, false),
                 name);
   }
@@ skipping 1183 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8