[Interpreter] Add support for short (16 bit) operands.

src/interpreter/bytecode-array-builder.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_BYTECODE_ARRAY_BUILDER_H_
 #define V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_
 
 #include <vector>
 
 #include "src/ast.h"
@@ skipping 91 matching lines @@
 
   static Bytecode BytecodeForBinaryOperation(Token::Value op);
   static Bytecode BytecodeForCompareOperation(Token::Value op);
   static bool FitsInIdxOperand(int value);
   static bool FitsInIdxOperand(size_t value);
   static bool FitsInImm8Operand(int value);
   static bool IsJumpWithImm8Operand(Bytecode jump_bytecode);
   static Bytecode GetJumpWithConstantOperand(Bytecode jump_with_smi8_operand);
 
   template <size_t N>
-  INLINE(void Output(uint8_t(&bytes)[N]));
-  void Output(Bytecode bytecode, uint8_t operand0, uint8_t operand1,
-              uint8_t operand2);
-  void Output(Bytecode bytecode, uint8_t operand0, uint8_t operand1);
-  void Output(Bytecode bytecode, uint8_t operand0);
+  INLINE(void Output(Bytecode bytecode, uint32_t(&oprands)[N]));
+  void Output(Bytecode bytecode, uint32_t operand0, uint32_t operand1,
+              uint32_t operand2);
+  void Output(Bytecode bytecode, uint32_t operand0, uint32_t operand1);
+  void Output(Bytecode bytecode, uint32_t operand0);
   void Output(Bytecode bytecode);
+  BytecodeArrayBuilder& OutputJump(Bytecode jump_bytecode,
+                                   BytecodeLabel* label);
   void PatchJump(const ZoneVector<uint8_t>::iterator& jump_target,
                  ZoneVector<uint8_t>::iterator jump_location);
-  BytecodeArrayBuilder& OutputJump(Bytecode jump_bytecode,
-                                   BytecodeLabel* label);
 
   void EnsureReturn();
 
   bool OperandIsValid(Bytecode bytecode, int operand_index,
-                      uint8_t operand_value) const;
+                      uint32_t operand_value) const;
   bool LastBytecodeInSameBlock() const;
 
   size_t GetConstantPoolEntry(Handle<Object> object);
 
   // Scope helpers used by TemporaryRegisterScope
   int BorrowTemporaryRegister();
   void ReturnTemporaryRegister(int reg_index);
 
   Isolate* isolate_;
   ZoneVector<uint8_t> bytecodes_;
@@ skipping 73 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TemporaryRegisterScope);
 };
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_ARRAY_BUILDER_H_