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// compile-flags: -Ztrait-solver=next
// check that a `alias-eq(<?0 as TraitB>::Assoc, <T as TraitB>::Assoc)` goal fails.
// FIXME(deferred_projection_equality): add a test that this is true during coherence
trait TraitB {
type Assoc;
}
fn needs_a<T: TraitB>() -> T::Assoc {
unimplemented!()
}
fn bar<T: TraitB>() {
let _: <_ as TraitB>::Assoc = needs_a::<T>();
//~^ error: type annotations needed
}
fn main() {}
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