[MERGE] Move UnicodeFeature into a core 'tests' feature, rather than living in test_diff.

[Vincent Ladeuil]

>>>>> "john" == John Arbash Meinel <john at arbash-meinel.com> writes:

    john> I've often wanted to do this. UnicodeFeature is generally useful, and should be
    john> used in more tests. This patch just changes it to be more available.

    john> John
    john> =:->

    john> # Bazaar merge directive format 2 (Bazaar 0.90)
    john> # revision_id: john at arbash-meinel.com-20080605210642-zoc3nelx84xmsxuf
    john> # target_branch: http://bazaar-vcs.org/bzr/bzr.dev
    john> # testament_sha1: ed7ed6afef0c10ff6d1ebe33ff91b9af791abddd
    john> # timestamp: 2008-06-05 16:06:48 -0500
    john> # source_branch: http://bzr.arbash-meinel.com/branches/bzr/1.6-\
    john> #   dev/symlink_unicode_135320
    john> # base_revision_id: pqm at pqm.ubuntu.com-20080605191237-2306x0goo9pfh9to
    john> # 
    john> # Begin patch
    john> === modified file 'bzrlib/tests/__init__.py'
    john> --- bzrlib/tests/__init__.py	2008-06-04 05:59:16 +0000
    john> +++ bzrlib/tests/__init__.py	2008-06-05 21:06:42 +0000
    john> @@ -3062,6 +3062,26 @@
    john>  OsFifoFeature = _OsFifoFeature()
 
 
    john> +class _UnicodeFilename(Feature):

Since you said "UnicodeFeature is generally useful", why not call
it such ? Or UnicodeFilenameFeature ?

bb:tweak

        Vincent