[SYCL][InvokeSimd] Fix two XFAIL tests (#14906)

For reference_argument.cpp, the test `RUN` line was wrong, and I added
the real error message to the `CHECK` string.

For `simd32_platform_error.cpp`, all Intel GPUs we test on report as
support SIMD32 (for the ones that don't in hardware, it is probably
emulated but it definitely works), so they don't throw this error so we
can't test it, so just remove the test.

Closes: #14643
Closes: #14644

Signed-off-by: Sarnie, Nick <[email protected]>

Author: sarnex

sycl/test-e2e/InvokeSimd/Spec/clang_run_error/reference_argument.cpp

@@ -1,8 +1,5 @@
-// RUN: not %{build} -fno-sycl-device-code-split-esimd -Xclang -fsycl-allow-func-ptr %s -o %t.out 2>&1 | FileCheck
+// RUN: not %{build} -fno-sycl-device-code-split-esimd -Xclang -fsycl-allow-func-ptr %s -o %t.out 2>&1 | FileCheck %s
 //
-// TODO FIXME: Currently compile fail with "no or multiple invoke_simd targets
-// found"
-// XFAIL: gpu
 /*
  * Test case specification: Test and report errors if reference argument is
  * passed to invoked ESIMD function
@@ -79,7 +76,7 @@ int main(void) {
 
             float res = invoke_simd(sg, SIMD_CALLEE<int_ref>, uniform{A},
                                     B[wi_id], uniform{i});
-            // CHECK: TODO FIXME
+            // CHECK: invoke_simd does not support callables with reference arguments
             C[wi_id] = res;
           });
     });