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// This test previously tried to use a tainted `EvalCtxt` when emitting
// an error during coherence.
#![feature(specialization)]
//~^ WARN the feature `specialization` is incomplete
trait Iterate<'a> {
type Ty: Valid;
}
impl<'a, T> Iterate<'a> for T
where
T: Check,
{
default type Ty = ();
//~^ ERROR the trait bound `(): Valid` is not satisfied
}
trait Check {}
impl<'a, T> Eq for T where <T as Iterate<'a>>::Ty: Valid {}
//~^ ERROR type parameter `T` must be used as the type parameter for some local type
trait Valid {}
fn main() {}
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