[builtins] Migrate ToNumber 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 1296 matching lines @@
   Node* context = __ GetContext();
   Node* result = __ ToName(context, object);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
   __ Dispatch();
 }
 
 // ToNumber
 //
 // Convert the object referenced by the accumulator to a number.
 void Interpreter::DoToNumber(InterpreterAssembler* assembler) {
-  Node* result = BuildUnaryOp(CodeFactory::ToNumber(isolate_), assembler);
+  Node* object = __ GetAccumulator();
+  Node* context = __ GetContext();
+  Node* result = __ ToNumber(context, object);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
   __ Dispatch();
 }
 
 // ToObject
 //
 // Convert the object referenced by the accumulator to a JSReceiver.
 void Interpreter::DoToObject(InterpreterAssembler* assembler) {
   Node* result = BuildUnaryOp(CodeFactory::ToObject(isolate_), assembler);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
@@ skipping 1126 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8