Subzero: Make -reg-use and -reg-exclude specific to register class.

src/IceTargetLowering.h

Index: src/IceTargetLowering.h
diff --git a/src/IceTargetLowering.h b/src/IceTargetLowering.h
index 9fb0c15e142631014328e903a94c0f803af738c0..16ad3263b62f74494c4d88c95324262fad3d4be6 100644
--- a/src/IceTargetLowering.h
+++ b/src/IceTargetLowering.h
@@ -355,7 +355,8 @@ protected:
   filterTypeToRegisterSet(GlobalContext *Ctx, int32_t NumRegs,
                           llvm::SmallBitVector TypeToRegisterSet[],
                           size_t TypeToRegisterSetSize,
-                          std::function<IceString(int32_t)> getRegName);
+                          std::function<IceString(int32_t)> getRegName,
+                          std::function<IceString(RegClass)> getRegClassName);
   virtual void lowerAlloca(const InstAlloca *Inst) = 0;
   virtual void lowerArithmetic(const InstArithmetic *Inst) = 0;
   virtual void lowerAssign(const InstAssign *Inst) = 0;