largefiles: use 'dirstate.dirs()' for 'directory pattern' relation check original implementation queries whether specified pattern is related or not to largefiles in target context by 'dirstate.__contains__()'. but this can't recognize 'directory pattern' correctly, so this patch uses 'dirstate.dirs()' for it. this patch uses dirstate instead of lfdirstate in 'working' route (second patch hunk for 'hgext/largefiles/reposetup.py'), because 'dirs()' information may be already built for dirstate but not yet for lfdirstate at this point. this prevents lfdirstate from building up and having 'dirs()' information.