[Interpreter] Handle negative ints in generate-bytecode-expectations.

src/interpreter/bytecodes.cc

Index: src/interpreter/bytecodes.cc
diff --git a/src/interpreter/bytecodes.cc b/src/interpreter/bytecodes.cc
index 7d06f29317218bd8fc4112b37c6026c2f0603737..f7b17965580c160371932a5ee6209c8741e1554f 100644
--- a/src/interpreter/bytecodes.cc
+++ b/src/interpreter/bytecodes.cc
@@ -264,17 +264,30 @@ bool Bytecodes::IsJumpOrReturn(Bytecode bytecode) {
   return bytecode == Bytecode::kReturn || IsJump(bytecode);
 }
 
-bool Bytecodes::IsMaybeRegisterOperandType(OperandType operand_type) {
-  return (operand_type == OperandType::kMaybeReg8 ||
-          operand_type == OperandType::kMaybeReg16);
+// static
+bool Bytecodes::IsIndexOperandType(OperandType operand_type) {
+  return operand_type == OperandType::kIdx8 ||
+         operand_type == OperandType::kIdx16;
+}
+
+// static
+bool Bytecodes::IsImmediateOperandType(OperandType operand_type) {
+  return operand_type == OperandType::kImm8;
 }
 
+// static
 bool Bytecodes::IsRegisterCountOperandType(OperandType operand_type) {
   return (operand_type == OperandType::kRegCount8 ||
           operand_type == OperandType::kRegCount16);
 }
 
 // static
+bool Bytecodes::IsMaybeRegisterOperandType(OperandType operand_type) {
+  return (operand_type == OperandType::kMaybeReg8 ||
+          operand_type == OperandType::kMaybeReg16);
+}
+
+// static
 bool Bytecodes::IsRegisterOperandType(OperandType operand_type) {
   switch (operand_type) {
 #define CASE(Name, _)        \