-- Canary fixture (Task 2 review, Important 2): pins the front-end fix
-- landed in this same task. A second `class Dup` in one file used to be
-- silently dropped by collect_declarations's bare StringMap.add; now it
-- is WO-E215, reported at the later declaration.
class Dup {
  n: Int
}
class Dup {
  s: Text
}

fn main() {
}