[SYCL][E2E] Expand testing for std::exp(complex<double>)#15666

AlexeySachkov wants to merge 2 commits intointel:syclintel/llvm:syclfrom

AlexeySachkov:private/asachkov/expand-devicelib-testsAlexeySachkov/llvm:private/asachkov/expand-devicelib-testsCopy head branch name to clipboard