tests/test-gendoc-sv.t

locate: explicitly use dirstate.matches() for working copy

`hg locate` is odd in that it includes files that have been removed
from the working copy. It relies on workingctx.matches() for that. I
want to make workingctx.matches() not include removed files, so this
patch makes `hg locate` handle the working copy differently instead.

Differential Revision: https://phab.mercurial-scm.org/D3710

#require docutils gettext

  $ $TESTDIR/check-gendoc sv
  checking for parse errors