#zig build-obj {
--name test -fno-emit-bin
-Mroot=test.zig
#}

#write test.zig {
const Letter = enum { A, B, C };
const Value = union(Letter) {
    A: i32,
    B,
    C,
};
export fn entry() void {
    var x: Value = Letter.A;
    _ = &x;
}
#}
#update
#check errors {
test.zig:8:26: error: coercion from enum 'test.Letter' to union 'test.Value' must initialize 'i32' field 'A'
test.zig:3:5: note: field 'A' declared here
test.zig:2:15: note: union declared here
#}
