message: Add Copy to the list of acceptable compute sets
  Summary: Latest poplar requires this.
  Test Plan: all tests ok
  Reviewers: #tensorflow, stephenm, hakons
  Subscribers: hakons
diff: @@ -216,7 +216,7 @@ class IpuXlaConvTest(xla_test.XLATestCase):
  cs_list = tu.get_compute_sets_from_report(s)
  ok = [
  - '__seed*', 'host-exchange-local-copy-',
  + '__seed*', 'host-exchange-local-copy-', 'Copy_',
  'Conv3DBackpropFilterV2/convolution.*/Conv_8x8x8'
  ]
  self.assertTrue(tu.check_all_compute_sets_and_list(cs_list, ok))
  