More fixes for handling of macros

[profetia]

Closes #16340
Continuation of #16296

More fixes for handling macros

changelog: [string_from_utf8_as_bytes] fix wrongly unmangled macros
changelog: [redundant_pattern_matching] fix wrongly unmangled macros
changelog: [unnecessary_fold] fix wrongly unmangled macros
changelog: [match_as_ref] fix wrongly unmangled macros
changelog: [match_bool] fix wrongly unmangled macros
changelog: [match_ok_err] fix wrongly unmangled macros
changelog: [for_kv_map] fix wrongly unmangled macros
changelog: [question_mark] fix wrongly unmangled macros
changelog: [iter_kv_map] fix wrongly unmangled macros
changelog: [mutex_atomic] fix wrongly unmangled macros

Maybe we should create an internal lint for this?

[rustbot]

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[Jarcho]

The changes to redundant_pattern_match look suspicious after a quick look. I haven't done a full check to see what should be done instead yet.

The others look fine.

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[rustbot]

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

[Jarcho]

Thank you.

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