[PATCH 2/8] lua: allow to create and error object with no throw

[Vladimir Davydov]

On Mon, Apr 16, 2018 at 09:39:12PM +0300, Vladislav Shpilevoy wrote:
> It is needed to return error via 'nil, error_object' notation,
> and to store an error object to return it later.
> 
> Closes #3031
> ---
>  src/box/lua/error.cc   | 15 +++++++++++++++
>  test/box/misc.result   | 25 +++++++++++++++++++++++++
>  test/box/misc.test.lua | 10 ++++++++++
>  3 files changed, 50 insertions(+)

Ack