Matthias Krüger 9b0abe3537
Rollup merge of #115311 - dtolnay:usearcself, r=compiler-errors
Revert "Suggest using `Arc` on `!Send`/`!Sync` types"

Closes https://github.com/rust-lang/rust/issues/114687. This is a clean revert of https://github.com/rust-lang/rust/pull/88936 + https://github.com/rust-lang/rust/pull/115210. The suggestion to Arc\<{Self}\> when Self does not implement Send is *always* wrong.

https://github.com/rust-lang/rust/pull/114842 is considering a way to make a more refined suggestion.
2023-08-28 19:53:57 +02:00
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