Function GracefulShutdownHandler

library/cpp/testing/unittest/utmain.cpp:714–720

extern "C" int __llvm_profile_write_file(void);

static void GracefulShutdownHandler(int) {
    try {
        __llvm_profile_write_file();
    } catch (...) {
    }
    abort();
}
#endif

int NUnitTest::RunMain(int argc, char** argv) {