librustc: Forbid & pointers (other than &'static) inside @ boxes.
#7894
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This will be needed to add `'static` bounds to `@`.
This makes custom borrowing implementations for custom smart pointers sound.
bors
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Jul 20, 2013
flip1995
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Nov 23, 2021
…effen Extend author lint changelog: none * Print float and int suffixes * Print labels * Struct field checks * Repeat length expression check * Destructure method calls * Destructure closures
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r? @brson