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test
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issues
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issue-8398.rs
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// build-pass (FIXME(62277): could be check-pass?)
#![
allow
(
dead_code
)]
// pretty-expanded FIXME #23616
pub
trait
Writer
{
fn
write
(&
mut
self
,
b
:
&[
u8
])
->
Result
<(),
()>;
}
fn
foo
(
a
:
&
mut
dyn
Writer
)
{
a
.
write
(&[]).
unwrap
();
}
pub
fn
main
(){}