Rollup merge of #66983 - weiznich:bugfix/issue_66295, r=estebank

Rollup merge of #66983 - weiznich:bugfix/issue_66295, r=estebank

Fix `unused_parens` triggers on macro by example code

Fix #66295

Unfortunately this does also break [an existing test](https://github.com/rust-lang/rust/blob/4787e97475de6be9487e3d9255a9c2d3c0bf9252/src/test/ui/lint/issue-47775-nested-macro-unnecessary-parens-arg.rs#L22). I'm not sure how to handle that, because that seems to be quite similar to the allowed cases

If this gets accepted it would be great to backport this fix to beta.