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Rollup merge of #85850 - bjorn3:less_feature_gates, r=jyn514

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Remove unused feature gates

The first commit removes a usage of a feature gate, but I don't expect it to be controversial as the feature gate was only used to workaround a limitation of rust in the past. (closures never being `Clone`)

The second commit uses `#[allow_internal_unstable]` to avoid leaking the `trusted_step` feature gate usage from inside the index newtype macro. It didn't work for the `min_specialization` feature gate though.

The third commit removes (almost) all feature gates from the compiler that weren't used anyway.
This commit is contained in:
Yuki Okushi 2021-06-04 13:42:54 +09:00 • committed by GitHub
commit 36f1ed6de2
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24 changed files with 2 additions and 69 deletions
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4
compiler/rustc_codegen_ssa/src/lib.rs
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@ -1,15 +1,11 @@
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![feature(assert_matches)]
#![feature(bool_to_option)]
#![feature(box_patterns)]
#![feature(drain_filter)]
#![feature(try_blocks)]
#![feature(in_band_lifetimes)]
#![feature(nll)]
#![feature(associated_type_bounds)]
#![feature(iter_zip)]
#![recursion_limit = "256"]
#![feature(box_syntax)]
//! This crate contains codegen code that is used by all codegen backends (LLVM and others).
//! The backend-agnostic functions of this crate use functions defined in various traits that