[turbofan] A bug fix of loadElimination

src/compiler/load-elimination.cc

Index: src/compiler/load-elimination.cc
diff --git a/src/compiler/load-elimination.cc b/src/compiler/load-elimination.cc
index f55ce2a2bd981806f1f1e9e615223a47c2912c28..6c2935f7ca8d4a4867f336dfff59050d5d0770e9 100644
--- a/src/compiler/load-elimination.cc
+++ b/src/compiler/load-elimination.cc
@@ -535,7 +535,7 @@ LoadElimination::AbstractState::KillFields(Node* object, Zone* zone) const {
       AbstractField const* that_field = this_field->Kill(object, zone);
       if (that_field != this_field) {
         AbstractState* that = new (zone) AbstractState(*this);
-        that->fields_[i] = this_field;
+        that->fields_[i] = that_field;
         while (++i < arraysize(fields_)) {
           if (this->fields_[i] != nullptr) {
             that->fields_[i] = this->fields_[i]->Kill(object, zone);