src/tools/rustfmt/tests/source/issue-4646.rs

trait Foo {
    fn bar(&self)
    // where
    //     Self: Bar
    ;
}

trait Foo {
    fn bar(&self)
    // where
    //     Self: Bar
;
}

trait Foo {
    fn bar(&self)
    // where
    //     Self: Bar
        ;
}