Allow for creating Private API symbols that have a number as an ID

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 "src/assert-scope.h"
@@ skipping 1223 matching lines @@
   // argument.  These cases are either in accordance with the spec or not
   // covered by it (eg., concerning API callbacks).
   MUST_USE_RESULT static Maybe<bool> SetProperty(LookupIterator* it,
                                                  Handle<Object> value,
                                                  LanguageMode language_mode,
                                                  StoreFromKeyed store_mode);
   MUST_USE_RESULT static MaybeHandle<Object> SetProperty(
       Handle<Object> object, Handle<Name> name, Handle<Object> value,
       LanguageMode language_mode,
       StoreFromKeyed store_mode = MAY_BE_STORE_FROM_KEYED);
+  MUST_USE_RESULT static inline MaybeHandle<Object> SetPropertyOrElement(
+      Handle<Object> object, Handle<Name> name, Handle<Object> value,
+      LanguageMode language_mode,
+      StoreFromKeyed store_mode = MAY_BE_STORE_FROM_KEYED);
 
   MUST_USE_RESULT static Maybe<bool> SetSuperProperty(
       LookupIterator* it, Handle<Object> value, LanguageMode language_mode,
       StoreFromKeyed store_mode);
 
   MUST_USE_RESULT static MaybeHandle<Object> ReadAbsentProperty(
       LookupIterator* it);
   MUST_USE_RESULT static MaybeHandle<Object> ReadAbsentProperty(
       Isolate* isolate, Handle<Object> receiver, Handle<Object> name);
   MUST_USE_RESULT static Maybe<bool> CannotCreateProperty(
@@ skipping 9539 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_