File: issue-39698.rs

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enum T {
    T1(i32, i32),
    T2(i32, i32),
    T3(i32),
    T4(i32),
}

fn main() {
    match T::T1(123, 456) {
        T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
        //~^ ERROR is not bound in all patterns
        //~| ERROR is not bound in all patterns
        //~| ERROR is not bound in all patterns
        //~| ERROR is not bound in all patterns
        //~| ERROR `a` is possibly-uninitialized
    }
}