Auto merge of #30015 - petrochenkov:staged, r=brson

Closes https://github.com/rust-lang/rust/issues/30008

`#[stable]`, `#[unstable]` and `#[rustc_deprecated]` are now guarded by `#[feature(staged_api)]`

r? @brson

src/test/auxiliary/inherited_stability.rs

@@ -11,7 +11,6 @@
 #![crate_type = "lib"]
 #![unstable(feature = "test_feature", issue = "0")]
 #![feature(staged_api)]
-#![staged_api]
 
 pub fn unstable() {}
 

src/test/auxiliary/internal_unstable.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 #![feature(staged_api, allow_internal_unstable)]
-#![staged_api]
 #![stable(feature = "stable", since = "1.0.0")]
 
 #[unstable(feature = "function", issue = "0")]

src/test/auxiliary/lint_output_format.rs

@@ -11,7 +11,6 @@
 #![crate_name="lint_output_format"]
 #![crate_type = "lib"]
 #![feature(staged_api)]
-#![staged_api]
 #![unstable(feature = "test_feature", issue = "0")]
 
 #[stable(feature = "test_feature", since = "1.0.0")]

src/test/auxiliary/lint_stability.rs

@@ -10,7 +10,6 @@
 #![crate_name="lint_stability"]
 #![crate_type = "lib"]
 #![feature(staged_api)]
-#![staged_api]
 #![stable(feature = "lint_stability", since = "1.0.0")]
 
 #[stable(feature = "test_feature", since = "1.0.0")]

src/test/auxiliary/lint_stability_fields.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 #![feature(staged_api)]
-#![staged_api]
 #![stable(feature = "rust1", since = "1.0.0")]
 
 #[stable(feature = "rust1", since = "1.0.0")]

src/test/auxiliary/stability_attribute_issue.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 #![feature(staged_api)]
-#![staged_api]
 #![stable(feature = "foo", since = "1.2.0")]
 
 

src/test/auxiliary/stability_cfg1.rs

@@ -11,4 +11,3 @@
 #![cfg_attr(foo, experimental)]
 #![cfg_attr(not(foo), stable(feature = "test_feature", since = "1.0.0"))]
 #![feature(staged_api)]
-#![staged_api]

src/test/auxiliary/stability_cfg2.rs

@@ -13,4 +13,3 @@
 #![cfg_attr(foo, unstable(feature = "test_feature", issue = "0"))]
 #![cfg_attr(not(foo), stable(feature = "test_feature", since = "1.0.0"))]
 #![feature(staged_api)]
-#![staged_api]

src/test/compile-fail/issue-17337.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 #![feature(staged_api)]
-#![staged_api]
 #![deny(deprecated)]
 
 #![unstable(feature = "test_feature", issue = "0")]

src/test/compile-fail/lint-forbid-cmdline.rs

@@ -11,7 +11,6 @@
 // compile-flags: -F deprecated
 
 #![feature(staged_api)]
-#![staged_api]
 #[allow(deprecated)] //~ ERROR allow(deprecated) overruled by outer forbid(deprecated)
 fn main() {
 }

src/test/compile-fail/lint-stability-fields.rs

@@ -12,7 +12,6 @@
 #![deny(deprecated)]
 #![allow(dead_code)]
 #![feature(staged_api)]
-#![staged_api]
 
 #![stable(feature = "rust1", since = "1.0.0")]
 

src/test/compile-fail/lint-stability.rs

@@ -16,7 +16,6 @@
 #![deny(deprecated)]
 #![allow(dead_code)]
 #![feature(staged_api)]
-#![staged_api]
 
 #![stable(feature = "rust1", since = "1.0.0")]
 

src/test/compile-fail/missing-stability.rs

@@ -12,7 +12,6 @@
 
 #![crate_type="lib"]
 #![feature(staged_api)]
-#![staged_api]
 
 #![stable(feature = "test_feature", since = "1.0.0")]
 

src/test/compile-fail/stability-attribute-sanity-2.rs

@@ -11,7 +11,6 @@
 // More checks that stability attributes are used correctly
 
 #![feature(staged_api)]
-#![staged_api]
 
 #![stable(feature = "test_feature", since = "1.0.0")]
 

src/test/compile-fail/stability-attribute-sanity.rs

@@ -11,7 +11,6 @@
 // Various checks that stability attributes are used correctly, per RFC 507
 
 #![feature(staged_api)]
-#![staged_api]
 
 #![stable(feature = "rust1", since = "1.0.0")]
 

src/test/compile-fail/staged_api.rs

@@ -1,13 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![staged_api] //~ ERROR staged_api is for use by rustc only
-
-fn main() { }

src/test/run-make/allow-warnings-cmdline-stability/bar.rs

@@ -10,7 +10,6 @@
 
 #![crate_type = "lib"]
 #![feature(staged_api)]
-#![staged_api]
 #![unstable(feature = "test_feature", issue = "0")]
 
 pub fn baz() { }

src/test/rustdoc/issue-18199.rs

@@ -13,7 +13,6 @@
 #![doc(test(attr(feature(staged_api))))]
 
 /// ```
-/// #![staged_api]
 /// #![unstable(feature="test", issue="18199")]
 /// fn main() {}
 /// ```

src/test/rustdoc/issue-27759.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 #![feature(staged_api)]
-#![staged_api]
 #![doc(issue_tracker_base_url = "http://issue_url/")]
 
 #![unstable(feature="test", issue="27759")]