[interpreter] Remove OperandScale from front stages of pipeline.

src/interpreter/bytecodes.h

Index: src/interpreter/bytecodes.h
diff --git a/src/interpreter/bytecodes.h b/src/interpreter/bytecodes.h
index e3970065e8c8c25819419bff513ee6b7627f7008..a789293f4efa3e9ca3f8c8005750b112be72e702 100644
--- a/src/interpreter/bytecodes.h
+++ b/src/interpreter/bytecodes.h
@@ -518,6 +518,10 @@ class Bytecodes {
   // OperandType::kNone.
   static const OperandType* GetOperandTypes(Bytecode bytecode);
 
+  // Returns a pointer to an array of operand type info terminated in
+  // OperandTypeInfo::kNone.
+  static const OperandTypeInfo* GetOperandTypeInfos(Bytecode bytecode);
+
   // Returns the size of the i-th operand of |bytecode|.
   static OperandSize GetOperandSize(Bytecode bytecode, int i,
                                     OperandScale operand_scale);
@@ -652,10 +656,7 @@ class Bytecodes {
   static OperandSize SizeForSignedOperand(int value);
 
   // Return the operand size required to hold an unsigned operand.
-  static OperandSize SizeForUnsignedOperand(int value);
-
-  // Return the operand size required to hold an unsigned operand.
-  static OperandSize SizeForUnsignedOperand(size_t value);
+  static OperandSize SizeForUnsignedOperand(uint32_t value);
 
   // Return the OperandScale required for bytecode emission of
   // operand sizes.