Traceback (most recent call last):
  File "/home/andy/git/oilshell/oil/bin/oil.py", line 360, in <module>
    sys.exit(main(sys.argv))
  File "/home/andy/git/oilshell/oil/bin/oil.py", line 303, in main
    return AppBundleMain(argv)
  File "/home/andy/git/oilshell/oil/bin/oil.py", line 274, in AppBundleMain
    return OshCommandMain(main_argv)
  File "/home/andy/git/oilshell/oil/bin/oil.py", line 155, in OshCommandMain
    osh2oil.PrintAsOil(arena, node)
  File "/home/andy/git/oilshell/oil/tools/osh2oil.py", line 80, in PrintAsOil
    fixer.DoCommand(node, None, at_top_level=True)  # no local symbols yet
  File "/home/andy/git/oilshell/oil/tools/osh2oil.py", line 572, in DoCommand
    self.DoCommand(child, local_symbols, at_top_level=at_top_level)
  File "/home/andy/git/oilshell/oil/tools/osh2oil.py", line 739, in DoCommand
    self.DoCommand(child, new_local_symbols)
  File "/home/andy/git/oilshell/oil/tools/osh2oil.py", line 635, in DoCommand
    self.DoRedirect(r, local_symbols)
  File "/home/andy/git/oilshell/oil/tools/osh2oil.py", line 344, in DoRedirect
    raise AssertionError(node.__class__.__name__)
AssertionError: redir