[stubs] Port ToName stub to TurboFan.

src/interpreter/interpreter.cc

 // Copyright 2015 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/interpreter/interpreter.h"
 
 #include <fstream>
 #include <memory>
 
 #include "src/ast/prettyprinter.h"
@@ skipping 1282 matching lines @@
   Node* value = __ GetAccumulator();
   Node* context = __ GetContext();
   Node* slot_index = __ BytecodeOperandIdx(0);
   Node* type_feedback_vector = __ LoadTypeFeedbackVector();
   Node* result = Generator::Generate(assembler, value, context,
                                      type_feedback_vector, slot_index);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
+template <class Generator>
+void Interpreter::DoConversionOp(InterpreterAssembler* assembler) {
+  Node* value = __ GetAccumulator();
+  Node* context = __ GetContext();
+  Node* result = Generator::Generate(assembler, value, context);
+  __ StoreRegister(result, __ BytecodeOperandReg(0));
+  __ Dispatch();
+}
+
 // ToName
 //
 // Cast the object referenced by the accumulator to a name.
 void Interpreter::DoToName(InterpreterAssembler* assembler) {
-  Node* result = BuildUnaryOp(CodeFactory::ToName(isolate_), assembler);
-  __ StoreRegister(result, __ BytecodeOperandReg(0));
-  __ Dispatch();
+  DoConversionOp<ToNameStub>(assembler);
 }
 
 // ToNumber
 //
 // Cast the object referenced by the accumulator to a number.
 void Interpreter::DoToNumber(InterpreterAssembler* assembler) {
   Node* result = BuildUnaryOp(CodeFactory::ToNumber(isolate_), assembler);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
   __ Dispatch();
 }
@@ skipping 1141 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8