[PATCH 1 of 2] smartset: convert set to list lazily

[Yuya Nishihara]

On Fri, 17 Feb 2017 22:02:11 -0800, Jun Wu wrote:
> # HG changeset patch
> # User Jun Wu <quark at fb.com>
> # Date 1487393969 28800
> #      Fri Feb 17 20:59:29 2017 -0800
> # Node ID b32af6cafb9b958decb7ae0db7dd754aa5a5f883
> # Parent  01eebb65a61d9edcad1665ed747c7092f1ddb8b9
> # Available At https://bitbucket.org/quark-zju/hg-draft
> #              hg pull https://bitbucket.org/quark-zju/hg-draft -r b32af6cafb9b
> smartset: convert set to list lazily

Queued this, thanks.