src/test/ui/type-alias-impl-trait/declared_but_never_defined.rs

   1 // revisions: min_tait full_tait
   2 #![feature(min_type_alias_impl_trait)]
   3 #![cfg_attr(full_tait, feature(type_alias_impl_trait))]
   4 //[full_tait]~^ WARN incomplete
   5
   6 fn main() {}
   7
   8 // declared but never defined
   9 type Bar = impl std::fmt::Debug; //~ ERROR could not find defining uses