[PATCH 1 of 4] tests: tests for revlog version and flags loading

[Yuya Nishihara]

On Fri, 19 May 2017 20:58:57 -0700, Gregory Szorc wrote:
> # HG changeset patch
> # User Gregory Szorc <gregory.szorc at gmail.com>
> # Date 1495249295 25200
> #      Fri May 19 20:01:35 2017 -0700
> # Node ID 40748da9c7c56836f815582cf9a367097755859d
> # Parent  a438f5a3bc092f54e14f45e2115a36312c2ed302
> tests: tests for revlog version and flags loading

The first three look good, but I'm not sure about the last revlog2 patch.
So I left these not queued.