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// build-pass (FIXME(62277): could be check-pass?)
// Regression test for #28871. The problem is that rustc encountered
// two ways to project, one from a where clause and one from the where
// clauses on the trait definition. (In fact, in this case, the where
// clauses originated from the trait definition as well.) The true
// cause of the error is that the trait definition where clauses are
// not being normalized, and hence the two sources are considered in
// conflict, and not a duplicate. Hacky solution is to prefer where
// clauses over the data found in the trait definition.
trait T {
type T;
}
struct S;
impl T for S {
type T = S;
}
trait T2 {
type T: Iterator<Item=<S as T>::T>;
}
fn main() { }
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