Implement lifetime elision for Foo(...) -> ... type sugar. #19589
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This means that `Fn(&A) -> (&B, &C)` is equivalent to `for<'a> Fn(&'a A) -> (&'a B, &'a C)` similar to the lifetime elision of lower-case `fn` in types and declarations. Closes rust-lang#18992.
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This means that `Fn(&A) -> (&B, &C)` is equivalent to `for<'a> Fn(&'a A) -> (&'a B, &'a C)` similar to the lifetime elision of lower-case `fn` in types and declarations. Closes rust-lang#18992.
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This means that
Fn(&A) -> (&B, &C)is equivalent tofor<'a> Fn(&'a A) -> (&'a B, &'a C)similar to the lifetime elision of lower-casefnintypes and declarations.
Closes #18992.