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Rollup merge of #88481 - bjorn3:remove_feature_gates, r=cjgillot

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Remove some feature gates

The first commit removes various feature gates that are unused. The second commit replaces some `Fn` implementations with `Iterator` implementations, which is much cleaner IMO. The third commit replaces an unboxed_closures feature gate with min_specialization. For some reason the unboxed_closures feature gate suppresses the min_specialization feature gate from triggering on an `TrustedStep` impl. The last comment just turns a regular comment into a doc comment as drive by cleanup. I can move it to a separate PR if preferred.
This commit is contained in:
Manish Goregaokar 2021-10-03 23:13:20 -07:00 • committed by GitHub
commit 5215b855b0
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11 changed files with 31 additions and 65 deletions
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compiler/rustc_lint/src/lib.rs
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@ -26,7 +26,6 @@
//! This API is completely unstable and subject to change.
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![cfg_attr(test, feature(test))]
#![feature(array_windows)]
#![feature(bool_to_option)]
#![feature(box_patterns)]