[turbofan] Make Node::set_op safer via wrapper.

src/compiler/js-inlining.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/compiler/js-inlining.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/compiler.h"
 #include "src/compiler/all-nodes.h"
@@ skipping 161 matching lines @@
   for (Node* const input : end->inputs()) {
     switch (input->opcode()) {
       case IrOpcode::kReturn:
         values.push_back(NodeProperties::GetValueInput(input, 0));
         effects.push_back(NodeProperties::GetEffectInput(input));
         controls.push_back(NodeProperties::GetControlInput(input));
         break;
       case IrOpcode::kDeoptimize:
       case IrOpcode::kTerminate:
       case IrOpcode::kThrow:
-        jsgraph_->graph()->end()->AppendInput(jsgraph_->zone(), input);
-        jsgraph_->graph()->end()->set_op(
-            jsgraph_->common()->End(jsgraph_->graph()->end()->InputCount()));
+        NodeProperties::MergeControlToEnd(jsgraph_->graph(), jsgraph_->common(),
+                                          input);
         break;
       default:
         UNREACHABLE();
         break;
     }
   }
   DCHECK_EQ(values.size(), effects.size());
   DCHECK_EQ(values.size(), controls.size());
 
   // Depending on whether the inlinee produces a value, we either replace value
@@ skipping 161 matching lines @@
 
   // Remember that we inlined this function.
   info_->AddInlinedFunction(info.shared_info());
 
   return InlineCall(node, context, frame_state, start, end);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8