Allow delegating associated functions with closure delegation expression · Kobzol/rust-delegate@3f809ec

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unused variable: `wrapper`

unused variable: `x`

struct `UserRepo` is never constructed

methods `foo` and `bar` are never used

struct `SharedRepo` is never constructed

methods `foo` and `bar` are never used

`delegate` (test "argument_modifier") generated 1 warning (run `cargo fix --test "argument_modifier"` to apply 1 suggestion)

`delegate` (test "segment_attributes") generated 5 warnings (run `cargo fix --test "segment_attributes"` to apply 1 suggestion)

variable does not need to be mutable

variable does not need to be mutable

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