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Jonathan Brouwer
ad0e037d39
miri-test-libstd: use --tests and update some comments rust-lang/rust#153143 added `./x test --tests` matching `cargo --tests`, which is exactly what Miri wants when testing the standard library. So let's use it for that. We can then also remove a hack in `library/alloctests/benches/vec_deque_append.rs`. Also update the comment for why the other benchmarks still need to be disabled in Miri, and remove some `cfg_attr` that seem unnecessary since the entire crate that contains them is already disabled in Miri. Those were copied over in https://github.com/rust-lang/rust/commit/b8fa843a1a60146b93ca5b1d11bbe23c1b1076f3 -- they used to be needed since benches and tests were in the same crate, but they aren't any more.