1const Foo = enum {
 2    Bar,
 3    Bar,
 4};
 5
 6export fn entry() void {
 7    const a: Foo = undefined;
 8    _ = a;
 9}
10
11// error
12//
13// :2:5: error: duplicate enum member name 'Bar'
14// :3:5: note: duplicate name here
15// :1:13: note: enum declared here