Move functions from handles.cc to where they belong.

src/json-stringifier.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 466 matching lines @@
 
   return SerializeGeneric(object, key, comma, deferred_string_key);
 }
 
 
 BasicJsonStringifier::Result BasicJsonStringifier::SerializeGeneric(
     Handle<Object> object,
     Handle<Object> key,
     bool deferred_comma,
     bool deferred_key) {
-  Handle<JSObject> builtins(isolate_->native_context()->builtins());
-  Handle<JSFunction> builtin = Handle<JSFunction>::cast(
-      GetProperty(builtins, "JSONSerializeAdapter").ToHandleChecked());
+  Handle<JSObject> builtins(isolate_->native_context()->builtins(), isolate_);
+  Handle<JSFunction> builtin = Handle<JSFunction>::cast(Object::GetProperty(
+      isolate_, builtins, "JSONSerializeAdapter").ToHandleChecked());
 
   Handle<Object> argv[] = { key, object };
   Handle<Object> result;
   ASSIGN_RETURN_ON_EXCEPTION_VALUE(
       isolate_, result,
       Execution::Call(isolate_, builtin, object, 2, argv),
       EXCEPTION);
   if (result->IsUndefined()) return UNCHANGED;
   if (deferred_key) {
     if (key->IsSmi()) key = factory_->NumberToString(key);
@@ skipping 188 matching lines @@
             EXCEPTION);
       }
       Result result = SerializeProperty(property, comma, key);
       if (!comma && result == SUCCESS) comma = true;
       if (result == EXCEPTION) return result;
     }
   } else {
     Handle<FixedArray> contents;
     ASSIGN_RETURN_ON_EXCEPTION_VALUE(
         isolate_, contents,
-        GetKeysInFixedArrayFor(object, LOCAL_ONLY),
+        JSReceiver::GetKeys(object, JSReceiver::LOCAL_ONLY),
         EXCEPTION);
 
     for (int i = 0; i < contents->length(); i++) {
       Object* key = contents->get(i);
       Handle<String> key_handle;
       MaybeHandle<Object> maybe_property;
       if (key->IsString()) {
         key_handle = Handle<String>(String::cast(key), isolate_);
         maybe_property = Object::GetPropertyOrElement(object, key_handle);
       } else {
@@ skipping 188 matching lines @@
       SerializeString_<false, uint8_t>(object);
     } else {
       SerializeString_<false, uc16>(object);
     }
   }
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_JSON_STRINGIFIER_H_