[turbofan] Support variable size argument popping in TF-generated functions

test/unittests/compiler/graph-reducer-unittest.cc

Index: test/unittests/compiler/graph-reducer-unittest.cc
diff --git a/test/unittests/compiler/graph-reducer-unittest.cc b/test/unittests/compiler/graph-reducer-unittest.cc
index 7d94793459613fce79785b0095549f3df69b0db1..ca814e5af843be95b180528b2d0517af8b7b0171 100644
--- a/test/unittests/compiler/graph-reducer-unittest.cc
+++ b/test/unittests/compiler/graph-reducer-unittest.cc
@@ -290,12 +290,13 @@ TEST_F(AdvancedReducerTest, ReplaceWithValue_ValueUse) {
   CommonOperatorBuilder common(zone());
   Node* node = graph()->NewNode(&kMockOperator);
   Node* start = graph()->NewNode(common.Start(1));
-  Node* use_value = graph()->NewNode(common.Return(), node, start, start);
+  Node* zero = graph()->NewNode(common.Int32Constant(0));
+  Node* use_value = graph()->NewNode(common.Return(), zero, node, start, start);
   Node* replacement = graph()->NewNode(&kMockOperator);
   GraphReducer graph_reducer(zone(), graph(), nullptr);
   ReplaceWithValueReducer r(&graph_reducer);
   r.ReplaceWithValue(node, replacement);
-  EXPECT_EQ(replacement, use_value->InputAt(0));
+  EXPECT_EQ(replacement, use_value->InputAt(1));
   EXPECT_EQ(0, node->UseCount());
   EXPECT_EQ(1, replacement->UseCount());
   EXPECT_THAT(replacement->uses(), ElementsAre(use_value));