error: type 'IoErr' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0811-modules-same-name-error-set-ambiguous.sx:34:18
   |
34 | fail_io :: () -> !IoErr {
   |                  ^^^^^^

error: type 'IoErr' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0811-modules-same-name-error-set-ambiguous.sx:39:19
   |
39 |     sz := size_of(IoErr);
   |                   ^^^^^

error: type 'IoErr' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0811-modules-same-name-error-set-ambiguous.sx:40:9
   |
40 |     e : IoErr = error.Disk;
   |         ^^^^^

error: type 'IoErr' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0811-modules-same-name-error-set-ambiguous.sx:41:16
   |
41 |     t : Type = IoErr;
   |                ^^^^^

error: type 'IoErr' is ambiguous: it is declared in multiple flat-imported modules; qualify the reference or remove the duplicate import
  --> examples/0811-modules-same-name-error-set-ambiguous.sx:28:14
   |
28 |         case IoErr: 1;
   |              ^^^^^