[Interpreter] Add an unsigned immediate operand type

src/interpreter/bytecode-array-iterator.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/bytecode-array-iterator.h"
 
 #include "src/interpreter/bytecode-decoder.h"
 #include "src/interpreter/interpreter-intrinsics.h"
 #include "src/objects-inl.h"
 
@@ skipping 79 matching lines @@
   return BytecodeDecoder::DecodeSignedOperand(operand_start, operand_type,
                                               current_operand_scale());
 }
 
 uint32_t BytecodeArrayIterator::GetFlagOperand(int operand_index) const {
   DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index),
             OperandType::kFlag8);
   return GetUnsignedOperand(operand_index, OperandType::kFlag8);
 }
 
+uint32_t BytecodeArrayIterator::GetUnsignedImmediateOperand(
+    int operand_index) const {
+  DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index),
+            OperandType::kUImm);
+  return GetUnsignedOperand(operand_index, OperandType::kUImm);
+}
+
 int32_t BytecodeArrayIterator::GetImmediateOperand(int operand_index) const {
   DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index),
             OperandType::kImm);
   return GetSignedOperand(operand_index, OperandType::kImm);
 }
 
 uint32_t BytecodeArrayIterator::GetRegisterCountOperand(
     int operand_index) const {
   DCHECK_EQ(Bytecodes::GetOperandType(current_bytecode(), operand_index),
             OperandType::kRegCount);
@@ skipping 69 matching lines @@
     return current_offset() + smi->value() + current_prefix_offset();
   } else {
     UNREACHABLE();
     return kMinInt;
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8