error: error tag 'error.Negative' is not in caller's error set 'Small'
  --> examples/1042-errors-failable-closure-shape-union-reject.sx:13:12
   |
13 |     return try h(x);   // Negative, Other ∉ Small → two diagnostics
   |            ^^^^^^^^

error: error tag 'error.Other' is not in caller's error set 'Small'
  --> examples/1042-errors-failable-closure-shape-union-reject.sx:13:12
   |
13 |     return try h(x);   // Negative, Other ∉ Small → two diagnostics
   |            ^^^^^^^^