[SYCL] Enable free functions tests for CUDA/HIP (#18379)

Free functions kernels have been fixed on CUDA since
intel/llvm#17899 but it seems re-enabling these
as missed.

They've also been supported on HIP for a while and `address_test.cpp`
passes as well.

So this patch enables all the remaining free functions tests for both
backends.

Author: npmiller

sycl/test-e2e/Experimental/free_functions/address_test.cpp

@@ -1,10 +1,6 @@
 // RUN: %{build} -o %t.out
 // RUN: %{run} %t.out
 
-// The name mangling for free function kernels currently does not work with PTX.
-// UNSUPPORTED: cuda, hip
-// UNSUPPORTED-INTENDED: Not implemented yet for Nvidia/AMD backends.
-
 #include <sycl/detail/core.hpp>
 #include <sycl/ext/oneapi/free_function_queries.hpp>
 #include <sycl/kernel_bundle.hpp>

sycl/test-e2e/Experimental/free_functions/namespace.cpp

@@ -2,10 +2,6 @@
 // RUN: %{build} %cxx_std_optionc++20 -o %t.out
 // RUN: %{run} %t.out
 
-// The name mangling for free function kernels currently does not work with PTX.
-// UNSUPPORTED: cuda
-// UNSUPPORTED-INTENDED: Not implemented yet for Nvidia/AMD backends.
-
 #include <sycl/detail/core.hpp>
 #include <sycl/ext/oneapi/free_function_queries.hpp>
 #include <sycl/kernel_bundle.hpp>

sycl/test-e2e/Experimental/free_functions/templates_cpp_integral_type.cpp

@@ -2,10 +2,6 @@
 // RUN: %{build} -o %t.out
 // RUN: %{run} %t.out
 
-// The name mangling for free function kernels currently does not work with PTX.
-// UNSUPPORTED: cuda
-// UNSUPPORTED-INTENDED: Not implemented yet for Nvidia/AMD backends.
-
 #include <sycl/detail/core.hpp>
 #include <sycl/ext/oneapi/free_function_queries.hpp>
 #include <sycl/kernel_bundle.hpp>

sycl/test-e2e/Experimental/free_functions/templates_cpp_non_integral_type.cpp

@@ -2,10 +2,6 @@
 // RUN: %{build} %cxx_std_optionc++20 -o %t.out
 // RUN: %{run} %t.out
 
-// The name mangling for free function kernels currently does not work with PTX.
-// UNSUPPORTED: cuda
-// UNSUPPORTED-INTENDED: Not implemented yet for Nvidia/AMD backends.
-
 #include <sycl/detail/core.hpp>
 #include <sycl/ext/oneapi/free_function_queries.hpp>
 #include <sycl/kernel_bundle.hpp>

sycl/test-e2e/Experimental/free_functions/templates_variadic.cpp

@@ -2,10 +2,6 @@
 // RUN: %{build} -DNDEBUG -o %t.out
 // RUN: %{run} %t.out
 
-// The name mangling for free function kernels currently does not work with PTX.
-// UNSUPPORTED: cuda
-// UNSUPPORTED-INTENDED: Not implemented yet for Nvidia/AMD backends.
-
 #include <cassert>
 #include <sycl/detail/core.hpp>
 #include <sycl/ext/oneapi/free_function_queries.hpp>