bug#21383: Static revisions in vc-working-revision

[Dmitry Gutov]

On 09/01/2015 06:55 AM, Stefan Monnier wrote:

> VC was originally designed so as to separate the VC data from the
> buffers, so the `file' argument was absolutely indispensable (you
> can't/shouldn't rely on things like the current-buffer's default-directory).
>
> I think nowadays the design has been changed enough that indeed the
> `file' arg can be dispensed with.

I think just the current usage, everywhere, makes it okay. But if I were 
to inquire of the status of a file in a different repository, that would 
still fail. We don't don't seem to do that anywhere, though, and 
supporting that usage would require fixes in multiple places.

This patch doesn't change much in this regard: FILE wasn't used for its 
default-directory even before it.

> The rest looks OK to me,

Thanks, installed.