rust/tests/ui/rfc-2632-const-trait-impl/const-impl-recovery.rs

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#![feature(const_trait_impl)]
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#[const_trait]
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trait Foo {}
const impl Foo for i32 {} //~ ERROR: expected identifier, found keyword
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#[const_trait]
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trait Bar {}
const impl<T: Foo> Bar for T {} //~ ERROR: expected identifier, found keyword
const fn still_implements<T: Bar>() {}
const _: () = still_implements::<i32>();
fn main() {}