| Index: src/runtime/runtime-internal.cc | 
| diff --git a/src/runtime/runtime-internal.cc b/src/runtime/runtime-internal.cc | 
| index acaaeff3f820c74b60f1e207ee74497e17a25c2c..b6176974909d5937e9da0d030a6f74177e395167 100644 | 
| --- a/src/runtime/runtime-internal.cc | 
| +++ b/src/runtime/runtime-internal.cc | 
| @@ -342,5 +342,11 @@ RUNTIME_FUNCTION(Runtime_Unlikely) { | 
| DCHECK(args.length() == 1); | 
| return args[0]; | 
| } | 
| + | 
| + | 
| +RUNTIME_FUNCTION(Runtime_HarmonyToString) { | 
| +  // TODO(caitp): Delete this runtime method when removing --harmony-tostring | 
| +  return isolate->heap()->ToBoolean(FLAG_harmony_tostring); | 
| +} | 
| } | 
| }  // namespace v8::internal | 
|  |