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

#write test.zig {
const Opaque = opaque { foo: i32 };
export fn entry() void {
    const foo: ?*Opaque = null;
    _ = foo;
}
#}
#update
#check errors {
test.zig:1:25: error: opaque types cannot have fields
#}
