Fix multiple problems in #15063

[profetia]

Closes rust-lang/rust-clippy#15063

changelog: [op_ref] fix wrongly showed macro definition in suggestions changelog: [needless_bool_assign] fix missing curlies when on else if

[rustbot]

r? @y21

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[profetia]

r? samueltardieu

[samueltardieu]

r? samueltardieu

Please don't assign PRs to me specifically unless there is a compelling reason to do so (availability is not). If you need to re-roll the dice for the assignment, use r? clippy instead.

[profetia]

I'm sorry for that.

[profetia]

r? clippy

[llogiq]

Looks good to me. Thank you.