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

test/cctest/compiler/test-js-typed-lowering.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compilation-dependencies.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-typed-lowering.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/opcodes.h"
@@ skipping 676 matching lines @@
         }
       }
     }
   }
 }
 
 TEST(RemoveToNumberEffects) {
   JSTypedLoweringTester R;
 
   Node* effect_use = NULL;
+  Node* zero = R.graph.NewNode(R.common.Int32Constant(0));
   for (int i = 0; i < 10; i++) {
     Node* p0 = R.Parameter(Type::Number());
     Node* ton = R.Unop(R.javascript.ToNumber(), p0);
     Node* frame_state = R.EmptyFrameState(R.context());
     effect_use = NULL;
 
     switch (i) {
       case 0:
         CHECK_EQ(1, OperatorProperties::GetFrameStateInputCount(
                         R.javascript.ToNumber()));
@@ skipping 10 matching lines @@
         effect_use = R.graph.NewNode(R.common.EffectPhi(1), ton, R.start());
       case 3:
         effect_use = R.graph.NewNode(R.javascript.Add(R.binop_hints), ton, ton,
                                      R.context(), frame_state, ton, R.start());
         break;
       case 4:
         effect_use = R.graph.NewNode(R.javascript.Add(R.binop_hints), p0, p0,
                                      R.context(), frame_state, ton, R.start());
         break;
       case 5:
-        effect_use = R.graph.NewNode(R.common.Return(), p0, ton, R.start());
+        effect_use =
+            R.graph.NewNode(R.common.Return(), zero, p0, ton, R.start());
         break;
       case 6:
-        effect_use = R.graph.NewNode(R.common.Return(), ton, ton, R.start());
+        effect_use =
+            R.graph.NewNode(R.common.Return(), zero, ton, ton, R.start());
     }
 
     R.CheckEffectInput(R.start(), ton);
     if (effect_use != NULL) R.CheckEffectInput(ton, effect_use);
 
     Node* r = R.reduce(ton);
     CHECK_EQ(p0, r);
     CHECK_NE(R.start(), r);
 
     if (effect_use != NULL) {
@@ skipping 501 matching lines @@
           CHECK_EQ(p1, r->InputAt(1));
         }
       }
     }
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8