[MERGE] Move the 'add_lines_nostoresha' to being tested against all VF implementations.

[James Westby]

On Wed, 2009-03-11 at 19:34 -0500, John Arbash Meinel wrote:
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> Just copying one of the "VersionedFile" tests to make it a
> "VersionedFiles" test. All current formats pass this test, but it turns
> out that the GroupCompressVersionedFiles implementation did not.

BB:approve

James