[Interpreter] Add an unsigned immediate operand type

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 ff6f14df2135925768e510dcb2a3e5c12c9f2dc5..32a3a886f88d528f07979c28a237b0e72002a0f7 100644
--- a/test/unittests/interpreter/interpreter-assembler-unittest.cc
+++ b/test/unittests/interpreter/interpreter-assembler-unittest.cc
@@ -421,6 +421,10 @@ TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperand) {
             EXPECT_THAT(m.BytecodeOperandIdx(i),
                         m.IsUnsignedOperand(offset, operand_size));
             break;
+          case interpreter::OperandType::kUImm:
+            EXPECT_THAT(m.BytecodeOperandIdx(i),
+                        m.IsUnsignedOperand(offset, operand_size));
+            break;
           case interpreter::OperandType::kImm: {
             EXPECT_THAT(m.BytecodeOperandImm(i),
                         m.IsSignedOperand(offset, operand_size));