error: type 'Pair' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0797-modules-same-name-union-ambiguous.sx:31:19
   |
31 |     sz := size_of(Pair);
   |                   ^^^^

error: type 'Pair' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0797-modules-same-name-union-ambiguous.sx:32:9
   |
32 |     u : Pair = ---;
   |         ^^^^

error: type 'Pair' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0797-modules-same-name-union-ambiguous.sx:33:16
   |
33 |     t : Type = Pair;
   |                ^^^^

error: type 'Pair' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0797-modules-same-name-union-ambiguous.sx:24:14
   |
24 |         case Pair: 1;
   |              ^^^^