[Interpreter] Add support for loading literals from the constant pool.

src/interpreter/bytecodes.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/bytecodes.h"
 
 #include "src/interpreter/bytecode-array-builder.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 108 matching lines @@
   }
 
   os << bytecode << " ";
 
   const uint8_t* operands_start = bytecode_start + 1;
   int operands_size = bytecode_size - 1;
   for (int i = 0; i < operands_size; i++) {
     OperandType op_type = GetOperandType(bytecode, i);
     uint8_t operand = operands_start[i];
     switch (op_type) {
+      case interpreter::OperandType::kIdx:
+        os << "[" << static_cast<unsigned int>(operand) << "]";
+        break;
       case interpreter::OperandType::kImm8:
         os << "#" << static_cast<int>(operand);
         break;
       case interpreter::OperandType::kReg:
         os << "r" << Register::FromOperand(operand).index();
         break;
       case interpreter::OperandType::kNone:
         UNREACHABLE();
         break;
     }
@@ skipping 10 matching lines @@
 }
 
 
 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type) {
   return os << Bytecodes::OperandTypeToString(operand_type);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8