[clang] [NFC] use appropriate castas (PR #95272)

[via cfe-commits]

https://github.com/mahesh-attarde created https://github.com/llvm/llvm-project/pull/95272

NFC fix for appropriate function call.
Requested by aaron while discussing https://github.com/llvm/llvm-project/pull/95257 https://github.com/llvm/llvm-project/pull/95257

>From 4baa0826b1aede21d0fc0e4f90d7e5880e767b73 Mon Sep 17 00:00:00 2001
From: mahesh-attarde <mahesh.attarde at intel.com>
Date: Wed, 12 Jun 2024 10:28:08 -0700
Subject: [PATCH] [NFC] use appropriate castas

---
 clang/lib/CodeGen/Targets/X86.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/CodeGen/Targets/X86.cpp b/clang/lib/CodeGen/Targets/X86.cpp
index 43dadf5e724ac..433ceaa76c847 100644
--- a/clang/lib/CodeGen/Targets/X86.cpp
+++ b/clang/lib/CodeGen/Targets/X86.cpp
@@ -2834,7 +2834,7 @@ ABIArgInfo
 X86_64ABIInfo::classifyRegCallStructTypeImpl(QualType Ty, unsigned &NeededInt,
                                              unsigned &NeededSSE,
                                              unsigned &MaxVectorWidth) const {
-  auto RT = Ty->getAs<RecordType>();
+  auto RT = Ty->castAs<RecordType>();
   assert(RT && "classifyRegCallStructType only valid with struct types");
 
   if (RT->getDecl()->hasFlexibleArrayMember())