[PATCH 09 of 10 V2] treemanifest: add tests covering hg diff of partial trees

[Martin von Zweigbergk]

On Tue, Mar 7, 2017 at 7:22 PM, Durham Goode <durham at fb.com> wrote:
> # HG changeset patch
> # User Durham Goode <durham at fb.com>
> # Date 1488940198 28800
> #      Tue Mar 07 18:29:58 2017 -0800
> # Node ID 611fac63adb09c326912e56df59c828ad12ffd9f
> # Parent  b76e7da4fb9ab00c3b98e5613d7caa0b4aceaf8b
> treemanifest: add tests covering hg diff of partial trees

Queued up to here, but I skipped patch 8. Thanks!