File: issue-50781.rs

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trait Trait {}

trait X {
    fn foo(&self) where Self: Trait;
}

impl X for () {
    fn foo(&self) {}
}

impl Trait for dyn X {}
//~^ ERROR the trait `X` cannot be made into an object

pub fn main() {
    // Check that this does not segfault.
    <dyn X as X>::foo(&());
    //~^ ERROR the trait `X` cannot be made into an object
    //~| ERROR the trait `X` cannot be made into an object
}