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[
use_self
]: Make it aware of lifetimes
Have the lint trigger even if `Self` has generic lifetime parameters. ```rs impl<'a> Foo<'a> { type Item = Foo<'a>; // Can be replaced with Self fn new() -> Self { Foo { // No lifetime, but they are inferred to be that of Self // Can be replaced as well ... } } // Don't replace `Foo<'b>`, the lifetime is different! fn eq<'b>(self, other: Foo<'b>) -> bool { .. } ``` Fixes rust-lang#12381
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