Add assert_matches crate#11
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The
assert_matches!()anddebug_assert_matches!()macros are instdsince Rust 1.96, covering the crate's assert-a-value-matches-a-pattern use (with optional guard and custom message). The crate's=> armform, which yields a value or runs extra assertions on the bindings, has nostdequivalent, so this is flagged as a partial replacement.@murarth 👋 does this seem accurate to you? any objections? (see rust-lang/crates.io#13855 for more information)