[Interpreter] Add BytecodeArray class and add to SharedFunctionInfo.

src/interpreter/bytecodes.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_BYTECODES_H_
 #define V8_INTERPRETER_BYTECODES_H_
 
 #include <iosfwd>
 
 #include "src/utils.h"
@@ skipping 25 matching lines @@
 
   // Returns the number of arguments expected by |bytecode|.
   static const int NumberOfArguments(Bytecode bytecode);
 
   // Returns the size of the bytecode including its arguments.
   static const int Size(Bytecode bytecode);
 
   // Returns true if the bytecode is a function return bytecode.
   static const bool IsReturn(Bytecode bytecode);
 
+  // The maximum number of arguments across all bytecodes.
+  static const int kMaximumNumberOfArguments = 1;
+
+  // Maximum size of a bytecode and its arguments.
+  static const int kMaximumSize = 1 + kMaximumNumberOfArguments;

[rmcilroy, 2015/07/21 11:25:16]

Is this just used for the disassembly? I don't think we should have this here
just for that, isn't there another way of formatting the disassembly to avoid
having to hard-code the maximum number of bytecode arguments?

+
  private:
   Bytecodes() { UNREACHABLE(); }
 };
 
-
 std::ostream& operator<<(std::ostream& os, const Bytecode& bytecode);
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODES_H_