match: consider filesets as "anypats"

Matt suggested this on IRC, I do not think the choice is obvious, but this one
makes things simpler because while filesets are turned into a list of files
into the match objects, it would more be difficult to tell invalid files passed
in pats from those expanded from filesets.

mercurial/match.py

@@ -333,5 +333,5 b' def _roots(patterns):'
 
 def _anypats(patterns):
     for kind, name in patterns:
-        if kind in ('glob', 're', 'relglob', 'relre'):
+        if kind in ('glob', 're', 'relglob', 'relre', 'set'):
             return True

tests/test-glog.t

@@ -1663,6 +1663,8 b' Test --copies'
 Test "set:..." and parent revision
 
   $ hg up -q 4
+  $ testlog "set:copied()"
+  ('group', ('group', ('func', ('symbol', '_matchfiles'), ('list', ('string', 'r:'), ('string', 'p:set:copied()')))))
   $ testlog --include "set:copied()"
   ('group', ('group', ('func', ('symbol', '_matchfiles'), ('list', ('string', 'r:'), ('string', 'i:set:copied()')))))
   $ testlog -r "sort(file('set:copied()'), -rev)"