src/test/ui/issues/issue-19632.rs

// build-pass (FIXME(62277): could be check-pass?)
#![allow(dead_code)]
// pretty-expanded FIXME #23616

trait PoolManager {
    type C;
    fn dummy(&self) { }
}

struct InnerPool<M: PoolManager> {
    manager: M,
}

fn main() {}