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mv the raw pointer {swap,replace}_ptr to std::ptr + some cleanup #6862

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I don't like the util module in general, and ptr is a much better place for these.

bors added a commit that referenced this pull request May 31, 2013
I don't like the `util` module in general, and `ptr` is a much better place for these.
@bors bors closed this May 31, 2013
flip1995 pushed a commit to flip1995/rust that referenced this pull request Mar 25, 2021
`match_wildcard` improvements

fixes: rust-lang#6604
fixes: rust-lang#5733
fixes: rust-lang#6862

rust-lang#5733 is only fixed in the normal case, if different paths are used for the variants then the same problem will occur. It's cause by `def_path_str` returning an utterly useless result. I haven't dug into why yet.

For rust-lang#6604 there should be some discussion before accepting this. It's easy enough to change the message rather than disable the lint for `Option` and `Result`.

changelog: Attempt to find a common path prefix for `match_wildcard_for_single_variants` and `wildcard_enum_match_arm`
changelog: Don't lint op `Option` and `Result` for `match_wildcard_for_single_variants` and `wildcard_enum_match_arm`
changelog: Consider `or` patterns and `Self` prefix for `match_wildcard_for_single_variants` and `wildcard_enum_match_arm`
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