message: [Symbolication] Fix unicode compatibility between 2 and 3.
  Triples are always ASCII for now, but we were handed out a
  unicode object.
  <rdar://problem/53592772>
diff: @@ -380,7 +380,7 @@ class Image:
  return None
  resolved_path = self.get_resolved_path()
  self.module = target.AddModule(
  - resolved_path, self.arch, uuid_str, self.symfile)
  + resolved_path, str(self.arch), uuid_str, self.symfile)
  if not self.module:
  return 'error: unable to get module for (%s) "%s"' % (
  self.arch, self.get_resolved_path())
  