[SYCL] Rewrite some E2E tests into unit-tests#15877

AlexeySachkov merged 3 commits intointel:syclintel/llvm:syclfrom

AlexeySachkov:private/asachkov/dont-use-ur-trace-in-e2e-testsAlexeySachkov/llvm:private/asachkov/dont-use-ur-trace-in-e2e-testsCopy head branch name to clipboard