[ignition] Expect 'I' for signed bytecode operands

test/cctest/interpreter/bytecode-expectations-printer.cc

Index: test/cctest/interpreter/bytecode-expectations-printer.cc
diff --git a/test/cctest/interpreter/bytecode-expectations-printer.cc b/test/cctest/interpreter/bytecode-expectations-printer.cc
index dcc4883058960d6c4273ce05fa3b88945d8c565e..6c9b64be8f6fd92aac66c422c4f15c37a5276d73 100644
--- a/test/cctest/interpreter/bytecode-expectations-printer.cc
+++ b/test/cctest/interpreter/bytecode-expectations-printer.cc
@@ -175,13 +175,13 @@ void BytecodeExpectationsPrinter::PrintBytecodeOperand(
       stream << '(' << register_value.index() << ')';
     }
   } else {
-    stream << 'U' << size_tag << '(';
-
     switch (op_type) {
       case OperandType::kFlag8:
+        stream << 'U' << size_tag << '(';
         stream << bytecode_iterator.GetFlagOperand(op_index);
         break;
       case OperandType::kIdx: {
+        stream << 'U' << size_tag << '(';
         uint32_t idx = bytecode_iterator.GetIndexOperand(op_index);
         if (bytecode == Bytecode::kCallJSRuntime && op_index == 0) {
           stream << "%" << NameForNativeContextIntrinsicIndex(idx);
@@ -191,21 +191,26 @@ void BytecodeExpectationsPrinter::PrintBytecodeOperand(
         break;
       }
       case OperandType::kUImm:
+        stream << 'U' << size_tag << '(';
         stream << bytecode_iterator.GetUnsignedImmediateOperand(op_index);
         break;
       case OperandType::kImm:
+        stream << 'I' << size_tag << '(';
         stream << bytecode_iterator.GetImmediateOperand(op_index);
         break;
       case OperandType::kRegCount:
+        stream << 'U' << size_tag << '(';
         stream << bytecode_iterator.GetRegisterCountOperand(op_index);
         break;
       case OperandType::kRuntimeId: {
+        stream << 'U' << size_tag << '(';
         Runtime::FunctionId id =
             bytecode_iterator.GetRuntimeIdOperand(op_index);
         stream << "Runtime::k" << i::Runtime::FunctionForId(id)->name;
         break;
       }
       case OperandType::kIntrinsicId: {
+        stream << 'U' << size_tag << '(';
         Runtime::FunctionId id =
             bytecode_iterator.GetIntrinsicIdOperand(op_index);
         stream << "Runtime::k" << i::Runtime::FunctionForId(id)->name;