[clang] Fix SemaCXX/msvc-pragma-function-no-builtin-attr.cpp test (PR #119873)

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https://github.com/VScigolevs created https://github.com/llvm/llvm-project/pull/119873

Fix test failure from 84b0f0145887bbfe49fd4dc85490b14108a72cee

>From 0def02261cc8e5f3f3711832093efa7f56437745 Mon Sep 17 00:00:00 2001
From: Vladimirs Scigolevs <vladimirs.scigolevs at zimperium.com>
Date: Fri, 13 Dec 2024 14:47:04 +0200
Subject: [PATCH] Fix SemaCXX/msvc-pragma-function-no-builtin-attr.cpp test

Fix test failure from 84b0f0145887bbfe49fd4dc85490b14108a72cee
---
 clang/test/SemaCXX/msvc-pragma-function-no-builtin-attr.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/test/SemaCXX/msvc-pragma-function-no-builtin-attr.cpp b/clang/test/SemaCXX/msvc-pragma-function-no-builtin-attr.cpp
index cd2ac7d1edbefb..066c66884e33c1 100644
--- a/clang/test/SemaCXX/msvc-pragma-function-no-builtin-attr.cpp
+++ b/clang/test/SemaCXX/msvc-pragma-function-no-builtin-attr.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cl -fms-compatibility -Xclang -ast-dump -fsyntax-only %s | FileCheck %s
+// RUN: %clang_cl -fms-compatibility -Xclang -ast-dump -fsyntax-only -- %s | FileCheck %s
 
 extern "C" __inline float __cdecl fabsf(  float _X);
 // CHECK: FunctionDecl {{.*}} fabsf