// run-rustfix
struct S {
    field_name: (),
}

fn main() {
    match (S {field_name: ()}) {
        S {field_name: ref _foo} => {} //~ ERROR expected `,`
    }
    match (S {field_name: ()}) {
        S {field_name: mut _foo} => {} //~ ERROR expected `,`
    }
    match (S {field_name: ()}) {
        S {field_name: ref mut _foo} => {} //~ ERROR expected `,`
    }
    // Verify that we recover enough to run typeck.
    let _: usize = 3usize; //~ ERROR mismatched types
}