| Index: src/lookup.cc
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| diff --git a/src/lookup.cc b/src/lookup.cc
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| index 58e3032e502d2e2fbfed4d7ac855dff500b86e28..97fd53522a91fbb5bf082d0e3100d31ac0f6f70c 100644
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| --- a/src/lookup.cc
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| +++ b/src/lookup.cc
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| @@ -252,7 +252,7 @@ void LookupIterator::TransitionToAccessorProperty(
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|  bool LookupIterator::HolderIsReceiverOrHiddenPrototype() const {
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|    DCHECK(has_property_ || state_ == INTERCEPTOR || state_ == JSPROXY);
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|    // Optimization that only works if configuration_ is not mutable.
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| -  if (!check_derived()) return true;
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| +  if (!check_prototype_chain()) return true;
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|    DisallowHeapAllocation no_gc;
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|    Handle<Object> receiver = GetReceiver();
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|    if (!receiver->IsJSReceiver()) return false;
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| 
 |