[Interpreter]: Add kRegList operand type for register list operands.

test/unittests/interpreter/interpreter-assembler-unittest.cc

Index: test/unittests/interpreter/interpreter-assembler-unittest.cc
diff --git a/test/unittests/interpreter/interpreter-assembler-unittest.cc b/test/unittests/interpreter/interpreter-assembler-unittest.cc
index 3071b58e8e2d7ca849d3be0359ac08f46a5747d2..53afb35a12a2305c77d562d5bfe7060129004b01 100644
--- a/test/unittests/interpreter/interpreter-assembler-unittest.cc
+++ b/test/unittests/interpreter/interpreter-assembler-unittest.cc
@@ -430,7 +430,7 @@ TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperand) {
                         m.IsSignedOperand(offset, operand_size));
             break;
           }
-          case interpreter::OperandType::kMaybeReg:
+          case interpreter::OperandType::kRegList:
           case interpreter::OperandType::kReg:
           case interpreter::OperandType::kRegOut:
           case interpreter::OperandType::kRegOutPair: