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

src/interpreter/bytecodes.h

Index: src/interpreter/bytecodes.h
diff --git a/src/interpreter/bytecodes.h b/src/interpreter/bytecodes.h
index d7a9a43b446656182584ac49ff41e30b86626782..c218dc69c32ef82708aceb2bc2bc917cdcd687e3 100644
--- a/src/interpreter/bytecodes.h
+++ b/src/interpreter/bytecodes.h
@@ -471,6 +471,9 @@ class Bytecodes {
   // (kRegCount8/kRegCount16).
   static bool IsRegisterCountOperandType(OperandType operand_type);
 
+  // Returns true if |operand_type| is a register index operand (kIdx8/kIdx16).
+  static bool IsIndexOperandType(OperandType operand_type);

[rmcilroy, 2016/02/10 15:26:12]

nit - Could you rearrange the order of these functions to be in the order:
IsIndexOperandType
IsImmediateOperandType
IsRegisterCountOperandType
IsRegisterOperandType
IsRegisterInputOperandType
IsRegisterOutputOperandType
IsMaybeRegisterOperandType

[Stefano Sanfilippo, 2016/02/10 15:52:00]

Done.

+
   // Returns true if |operand_type| is any type of register operand.
   static bool IsRegisterOperandType(OperandType operand_type);
 
@@ -480,6 +483,9 @@ class Bytecodes {
   // Returns true if |operand_type| represents a register used as an output.
   static bool IsRegisterOutputOperandType(OperandType operand_type);
 
+  // Returns true if |operand_type| represents an immediate.
+  static bool IsImmediateOperandType(OperandType operand_type);
+
   // Decode a single bytecode and operands to |os|.
   static std::ostream& Decode(std::ostream& os, const uint8_t* bytecode_start,
                               int number_of_parameters);