Clarify test

Signed-off-by: Julian Oppermann <julian.oppermann@codeplay.com>

Author: jopperm

sycl/test-e2e/KernelCompiler/kernel_compiler_sycl_jit.cpp

@@ -203,15 +203,14 @@ int test_build_and_run() {
       syclex::properties{syclex::build_options{flags}, syclex::save_log{&log},
                          syclex::registered_kernel_names{"ff_templated<int>"}});
 
-  // extern "C" was used, so the name "ff_cp" is not mangled and can be used
-  // directly.
+  // extern "C" was used, so the name "ff_cp" is implicitly known.
   sycl::kernel k = kbExe2.ext_oneapi_get_kernel("ff_cp");
 
-  // The templated function name will have been mangled.
+  // The templated function name was registered.
   sycl::kernel k2 = kbExe2.ext_oneapi_get_kernel("ff_templated<int>");
 
-  // We can also use the mangled name. This escape hatch might be removed in the
-  // future.
+  // We can also use the compiler-generated names directly.
+  assert(kbExe2.ext_oneapi_has_kernel("__sycl_kernel_ff_cp"));
   assert(
       kbExe2.ext_oneapi_has_kernel("_Z26__sycl_kernel_ff_templatedIiEvPT_S1_"));