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Auto merge of #79278 - mark-i-m:stabilize-or-pattern, r=nikomatsakis

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Stabilize or_patterns (RFC 2535, 2530, 2175)

closes #54883

This PR stabilizes the or_patterns feature in Rust 1.53.

This is blocked on the following (in order):
- [x] The crater run in https://github.com/rust-lang/rust/pull/78935#issuecomment-731564021
- [x] The resolution of the unresolved questions and a second crater run (https://github.com/rust-lang/rust/pull/78935#issuecomment-735412705)
    - It looks like we will need to pursue some sort of edition-based transition for `:pat`.
- [x] Nomination and discussion by T-lang
- [x] Implement new behavior for `:pat` based on consensus (https://github.com/rust-lang/rust/pull/80100).
- [ ] An FCP on stabilization

EDIT: Stabilization report is in https://github.com/rust-lang/rust/pull/79278#issuecomment-772815177
This commit is contained in:
bors 2021-03-22 19:48:27 +00:00
commit 5d04957a4b
128 changed files with 420 additions and 843 deletions
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2
compiler/rustc_trait_selection/src/lib.rs
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@ -17,7 +17,7 @@
#![feature(in_band_lifetimes)]
#![feature(never_type)]
#![feature(crate_visibility_modifier)]
#![feature(or_patterns)]
#![cfg_attr(bootstrap, feature(or_patterns))]
#![feature(control_flow_enum)]
#![recursion_limit = "512"] // For rustdoc