[clang] [NFC] Change SYCL test file extension .c -> .cpp (PR #173937)

[Alexey Bader via cfe-commits]

https://github.com/bader created https://github.com/llvm/llvm-project/pull/173937

SYCL is an API built on top of C++ programming language. Building SYCL
program with C compiler is not possible.

>From 2e85b04da74fb15e16b7f1b093f7962a97a04c10 Mon Sep 17 00:00:00 2001
From: Alexey Bader <alexey.bader at intel.com>
Date: Mon, 29 Dec 2025 16:42:16 -0800
Subject: [PATCH] [NFC] Change SYCL test file extension .c -> .cpp

SYCL is an API built on top of C++ programming language. Building SYCL
program with C compiler is not possible.
---
 clang/test/Driver/{sycl.c => sycl.cpp} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename clang/test/Driver/{sycl.c => sycl.cpp} (100%)

diff --git a/clang/test/Driver/sycl.c b/clang/test/Driver/sycl.cpp
similarity index 100%
rename from clang/test/Driver/sycl.c
rename to clang/test/Driver/sycl.cpp