[SYCL][CUDA] Reenable multi-source tests for CUDA

SYCL/Basic/multisource.cpp

@@ -6,8 +6,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-// XFAIL: cuda
-
 // Separate kernel sources and host code sources
 // RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple -c -o %t.kernel.o %s -DINIT_KERNEL -DCALC_KERNEL
 // RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple -c -o %t.main.o %s -DMAIN_APP

SYCL/SeparateCompile/same-kernel.cpp

@@ -4,7 +4,6 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-// XFAIL: cuda
 //===----------------------------------------------------------------------===//
 // >> ---- compile src1
 // RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple -c %s -o %t-same-kernel-a.o

SYCL/SeparateCompile/sycl-external.cpp

@@ -1,5 +1,3 @@
-// XFAIL: cuda
-
 // Test1 - check that kernel can call a SYCL_EXTERNAL function defined in a
 // different object file.
 // RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple -DSOURCE1 -c %s -o %t1.o