// @has - '//*[@id="impl-Foo%3C%26A%3E-for-%26B"]/*[@class="code-header"]' \
// 'impl<A, B> Foo<&A> for &B'
#[doc(primitive = "reference")]
// @has - '//*[@id="impl-Foo%3C%26A%3E-for-%26B"]/*[@class="code-header"]' \
// 'impl<A, B> Foo<&A> for &B'
#[doc(primitive = "reference")]