Make NonNull::as_ref (and friends) return refs with unbound lifetimes
Make NonNull::as_ref (and friends) return refs with unbound lifetimes

graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust