rustc: adjust span for error message to not trim last letter - #6863
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`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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