[Interpreter] Add wide varients of bytecodes with feedback and constant pool indexes.

src/interpreter/interpreter.h

 // 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.
 
 #ifndef V8_INTERPRETER_INTERPRETER_H_
 #define V8_INTERPRETER_INTERPRETER_H_
 
 // Clients of this interface shouldn't depend on lots of interpreter internals.
 // Do not include anything from src/interpreter other than
 // src/interpreter/bytecodes.h here!
@@ skipping 45 matching lines @@
 
   // Generates code to perform the count operations via |function_id|.
   void DoCountOp(Runtime::FunctionId function_id,
                  compiler::InterpreterAssembler* assembler);
 
   // Generates code to perform the comparison operation associated with
   // |compare_op|.
   void DoCompareOp(Token::Value compare_op,
                    compiler::InterpreterAssembler* assembler);
 
+  // Generates code to load a constant from the constant pool.
+  void DoLoadConstant(compiler::InterpreterAssembler* assembler);
+
   // Generates code to perform a global load via |ic|.
   void DoLoadGlobal(Callable ic, compiler::InterpreterAssembler* assembler);
 
   // Generates code to perform a global store via |ic|.
   void DoStoreGlobal(Callable ic, compiler::InterpreterAssembler* assembler);
 
   // Generates code to perform a named property load via |ic|.
   void DoLoadIC(Callable ic, compiler::InterpreterAssembler* assembler);
 
   // Generates code to perform a keyed property load via |ic|.
@@ skipping 18 matching lines @@
   Isolate* isolate_;
 
   DISALLOW_COPY_AND_ASSIGN(Interpreter);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_INTERPRETER_H_