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// Test that encountering closures during coherence does not cause issues.
#![feature(type_alias_impl_trait, generators)]
type OpaqueGenerator = impl Sized;
fn defining_use() -> OpaqueGenerator {
|| {
for i in 0..10 {
yield i;
}
}
}
struct Wrapper<T>(T);
trait Trait {}
impl Trait for Wrapper<OpaqueGenerator> {}
impl<T: Sync> Trait for Wrapper<T> {}
//~^ ERROR conflicting implementations of trait `Trait` for type `Wrapper<OpaqueGenerator>`
fn main() {}
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