largefiles: pass in whole matcher to getstandinmatcher()

The choice between the "always" case and the other case is done in
getstandinmatcher() and the next patch will change how it's determined
based on the matcher, so let's prepare by passing in the matcher, not
just the matcher's files.

hgext/largefiles/lfutil.py

@@ -238,11 +238,11 b' def linktousercache(repo, hash):'
     if path:
         link(storepath(repo, hash), path)
 
-def getstandinmatcher(repo, pats=[]):
-    '''Return a match object that applies pats to the standin directory'''
+def getstandinmatcher(repo, rmatcher=None):
+    '''Return a match object that applies rmatcher to the standin directory'''
     standindir = repo.wjoin(shortname)
-    if pats:
-        pats = [os.path.join(standindir, pat) for pat in pats]
+    if rmatcher and rmatcher.files():
+        pats = [os.path.join(standindir, pat) for pat in rmatcher.files()]
     else:
         # no patterns: relative to repo root
         pats = [standindir]
@@ -255,7 +255,7 b' def composestandinmatcher(repo, rmatcher'
     '''Return a matcher that accepts standins corresponding to the
     files accepted by rmatcher. Pass the list of files in the matcher
     as the paths specified by the user.'''
-    smatcher = getstandinmatcher(repo, rmatcher.files())
+    smatcher = getstandinmatcher(repo, rmatcher)
     isstandin = smatcher.matchfn
     def composedmatchfn(f):
         return isstandin(f) and rmatcher.matchfn(splitstandin(f))