Replace conventional C++ mem operation with ESIMD

Signed-off-by: Vyacheslav N Klochkov <[email protected]>

Author: v-klochkov

SYCL/ESIMD/unused_spec_const.cpp

@@ -33,7 +33,9 @@ int main() {
        // eliminated by DAE optimization OR nullptr is passed for that argument.
 
        // KH.get_specialization_constant<Spec>();
-       *A += 2;
+       sycl::ext::intel::esimd::simd<int, 1> V(A);
+       V += 2;
+       V.copy_to(A);
      });
    }).wait();