Function STDEXEC_CATCH

test/exec/async_scope/test_spawn_future.cpp:178–181

      FAIL("Exceptions should have been thrown");
    }
    STDEXEC_CATCH(std::logic_error const & e)
    {
      SUCCEED("correct exception caught");
    }
    STDEXEC_CATCH_ALL
    {
      FAIL("invalid exception caught");