[stubs] Introduce AddStub and SubtractStub.

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 "src/ast/prettyprinter.h"
 #include "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/factory.h"
@@ skipping 631 matching lines @@
   Node* result = __ CallRuntime(function_id, context, lhs, rhs);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
 
 // Add <src>
 //
 // Add register <src> to accumulator.
 void Interpreter::DoAdd(InterpreterAssembler* assembler) {
-  DoBinaryOp(Runtime::kAdd, assembler);
+  DoBinaryOp(CodeFactory::Add(isolate_), assembler);
 }
 
 
 // Sub <src>
 //
 // Subtract register <src> from accumulator.
 void Interpreter::DoSub(InterpreterAssembler* assembler) {
-  DoBinaryOp(Runtime::kSubtract, assembler);
+  DoBinaryOp(CodeFactory::Subtract(isolate_), assembler);
 }
 
 
 // Mul <src>
 //
 // Multiply accumulator by register <src>.
 void Interpreter::DoMul(InterpreterAssembler* assembler) {
   DoBinaryOp(Runtime::kMultiply, assembler);
 }
 
@@ skipping 934 matching lines @@
 // Illegal
 //
 // An invalid bytecode aborting execution if dispatched.
 void Interpreter::DoIllegal(InterpreterAssembler* assembler) {
   __ Abort(kInvalidBytecode);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8