rustc: allow @ as-patterns to move when the sub-pattern contains no bindings. #8508
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…indings. A pattern like `foo @ Foo(Bar(*), _)` should be legal, even if `foo` moves, since the subpatterns are purely structural. Fixes rust-lang#3761.
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Check if lhs < rhs in modulos in `identity_op` Fixes rust-lang#8508 changelog: [`identity_op`] now checks for modulos, e.g. `1 % 3`
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A pattern like
foo @ Foo(Bar(*), _)should be legal, even iffoomoves,since the subpatterns are purely structural.
Fixes #3761.