| Index: src/objects-debug.cc | 
| diff --git a/src/objects-debug.cc b/src/objects-debug.cc | 
| index 57ac691b6aa24e6b6e68966fdc30b97c9e0840d4..f47937557398aa0b2f14381b6761ab7db4bc99b1 100644 | 
| --- a/src/objects-debug.cc | 
| +++ b/src/objects-debug.cc | 
| @@ -1086,6 +1086,12 @@ void PrototypeInfo::PrototypeInfoVerify() { | 
| CHECK(validity_cell()->IsCell() || validity_cell()->IsSmi()); | 
| } | 
|  | 
| +void Tuple2::Tuple2Verify() { | 
| +  CHECK(IsTuple2()); | 
| +  VerifyObjectField(kValue1Offset); | 
| +  VerifyObjectField(kValue2Offset); | 
| +} | 
| + | 
| void Tuple3::Tuple3Verify() { | 
| CHECK(IsTuple3()); | 
| VerifyObjectField(kValue1Offset); | 
|  |