Auto merge of #104087 - nbdd0121:const, r=scottmcm

Stabilise inline_const

# Stabilisation Report

## Summary

This PR will stabilise `inline_const` feature in expression position. `inline_const_pat` is still unstable and will *not* be stabilised.

The feature will allow code like this:
```rust
foo(const { 1 + 1 })
```
which is roughly desugared into
```rust
struct Foo;
impl Foo {
    const FOO: i32 = 1 + 1;
}
foo(Foo::FOO)
```

This feature is from https://github.com/rust-lang/rfcs/pull/2920 and is tracked in #76001 (the tracking issue should *not* be closed as it needs to track inline const in pattern position). The initial implementation is done in #77124.

## Difference from RFC

There are two major differences (enhancements) as implemented from the RFC. First thing is that the RFC says that the type of an inline const block inferred from the content *within* it, but we currently can infer the type using the information from outside the const block as well. This is a frequently requested feature to the initial implementation (e.g. #89964). The inference is implemented in #89561 and is done by treating inline const similar to a closure and therefore share inference context with its parent body.

This allows code like:
```rust
let v: Vec<i32> = const { Vec::new() };
```

Another enhancement that differs from the RFC is that we currently allow inline consts to reference generic parameters. This is implemented in #96557.

This allows code like:
```rust
fn create_none_array<T, const N: usize>() -> [Option<T>; N] {
    [const { None::<T> }; N]
}
```

This enhancement also makes inline const usable as static asserts:

```rust
fn require_zst<T>() {
    const { assert!(std::mem::size_of::<T>() == 0) }
}
```

## Documentation

Reference: rust-lang/reference#1295

## Unresolved issues

We still have a few issues that are not resolved, but I don't think it necessarily has to block stabilisation:
* expr fragment specifier issue: #86730
* ~~`const {}` behaves similar to `async {}` but not to `{}` and `unsafe {}` (they are treated as `ExpressionWithoutBlock` rather than `ExpressionWithBlock`): https://rust-lang.zulipchat.com/#narrow/stream/213817-t-lang/topic/const.20blocks.20differ.20from.20normal.20and.20from.20unsafe.20blocks/near/290229453~~

## Tests

There are a few tests in https://github.com/rust-lang/rust/tree/master/src/test/ui/inline-const

compiler/rustc_ast_passes/src/feature_gate.rs

@@ -556,7 +556,6 @@ pub fn check_crate(krate: &ast::Crate, sess: &Session, features: &Features) {
         half_open_range_patterns_in_slices,
         "half-open range patterns in slices are unstable"
     );
-    gate_all!(inline_const, "inline-const is experimental");
     gate_all!(inline_const_pat, "inline-const in pattern position is experimental");
     gate_all!(associated_const_equality, "associated const equality is incomplete");
     gate_all!(yeet_expr, "`do yeet` expression is experimental");

compiler/rustc_feature/src/accepted.rs

@@ -211,6 +211,8 @@ declare_features! (
     (accepted, inclusive_range_syntax, "1.26.0", Some(28237)),
     /// Allows inferring outlives requirements (RFC 2093).
     (accepted, infer_outlives_requirements, "1.30.0", Some(44493)),
+    /// Allow anonymous constants from an inline `const` block
+    (accepted, inline_const, "CURRENT_RUSTC_VERSION", Some(76001)),
     /// Allows irrefutable patterns in `if let` and `while let` statements (RFC 2086).
     (accepted, irrefutable_let_patterns, "1.33.0", Some(44495)),
     /// Allows `#[instruction_set(_)]` attribute.

compiler/rustc_feature/src/unstable.rs

@@ -501,8 +501,6 @@ declare_features! (
     (unstable, impl_trait_in_fn_trait_return, "1.64.0", Some(99697)),
     /// Allows associated types in inherent impls.
     (incomplete, inherent_associated_types, "1.52.0", Some(8995)),
-    /// Allow anonymous constants from an inline `const` block
-    (unstable, inline_const, "1.49.0", Some(76001)),
     /// Allow anonymous constants from an inline `const` block in pattern position
     (unstable, inline_const_pat, "1.58.0", Some(76001)),
     /// Allows using `pointer` and `reference` in intra-doc links

compiler/rustc_middle/src/lib.rs

@@ -37,7 +37,7 @@
 #![feature(coroutines)]
 #![feature(stmt_expr_attributes)]
 #![feature(if_let_guard)]
-#![feature(inline_const)]
+#![cfg_attr(bootstrap, feature(inline_const))]
 #![feature(iter_from_coroutine)]
 #![feature(negative_impls)]
 #![feature(never_type)]

compiler/rustc_mir_transform/src/lib.rs

@@ -4,7 +4,7 @@
 #![feature(cow_is_borrowed)]
 #![feature(decl_macro)]
 #![feature(impl_trait_in_assoc_type)]
-#![feature(inline_const)]
+#![cfg_attr(bootstrap, feature(inline_const))]
 #![feature(is_sorted)]
 #![feature(let_chains)]
 #![feature(map_try_insert)]

compiler/rustc_parse/src/parser/mod.rs

@@ -1252,8 +1252,6 @@ impl<'a> Parser<'a> {
     fn parse_const_block(&mut self, span: Span, pat: bool) -> PResult<'a, P<Expr>> {
         if pat {
             self.psess.gated_spans.gate(sym::inline_const_pat, span);
-        } else {
-            self.psess.gated_spans.gate(sym::inline_const, span);
         }
         self.eat_keyword(kw::Const);
         let (attrs, blk) = self.parse_inner_attrs_and_block()?;

compiler/rustc_serialize/src/lib.rs

@@ -11,7 +11,7 @@
 #![cfg_attr(bootstrap, feature(associated_type_bounds))]
 #![feature(const_option)]
 #![feature(core_intrinsics)]
-#![feature(inline_const)]
+#![cfg_attr(bootstrap, feature(inline_const))]
 #![feature(min_specialization)]
 #![feature(never_type)]
 #![feature(ptr_sub_ptr)]

library/alloc/src/lib.rs

@@ -128,7 +128,6 @@
 #![feature(fn_traits)]
 #![feature(hasher_prefixfree_extras)]
 #![feature(hint_assert_unchecked)]
-#![feature(inline_const)]
 #![feature(inplace_iteration)]
 #![feature(iter_advance_by)]
 #![feature(iter_next_chunk)]
@@ -169,6 +168,7 @@
 // Language features:
 // tidy-alphabetical-start
 #![cfg_attr(bootstrap, feature(associated_type_bounds))]
+#![cfg_attr(bootstrap, feature(inline_const))]
 #![cfg_attr(not(bootstrap), rustc_preserve_ub_checks)]
 #![cfg_attr(not(test), feature(coroutine_trait))]
 #![cfg_attr(test, feature(panic_update_hook))]

library/core/src/lib.rs

@@ -201,6 +201,7 @@
 //
 // Language features:
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(inline_const))]
 #![feature(abi_unadjusted)]
 #![feature(adt_const_params)]
 #![feature(allow_internal_unsafe)]
@@ -231,7 +232,6 @@
 #![feature(fundamental)]
 #![feature(generic_arg_infer)]
 #![feature(if_let_guard)]
-#![feature(inline_const)]
 #![feature(intra_doc_pointers)]
 #![feature(intrinsics)]
 #![feature(lang_items)]

library/core/src/sync/atomic.rs

@@ -511,7 +511,8 @@ impl AtomicBool {
     /// # Examples
     ///
     /// ```
-    /// #![feature(atomic_from_mut, inline_const)]
+    /// #![feature(atomic_from_mut)]
+    /// # #![cfg_attr(bootstrap, feature(inline_const))]
     /// use std::sync::atomic::{AtomicBool, Ordering};
     ///
     /// let mut some_bools = [const { AtomicBool::new(false) }; 10];
@@ -1313,7 +1314,8 @@ impl<T> AtomicPtr<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(atomic_from_mut, inline_const)]
+    /// #![feature(atomic_from_mut)]
+    /// # #![cfg_attr(bootstrap, feature(inline_const))]
     /// use std::ptr::null_mut;
     /// use std::sync::atomic::{AtomicPtr, Ordering};
     ///
@@ -2303,7 +2305,8 @@ macro_rules! atomic_int {
             /// # Examples
             ///
             /// ```
-            /// #![feature(atomic_from_mut, inline_const)]
+            /// #![feature(atomic_from_mut)]
+            /// # #![cfg_attr(bootstrap, feature(inline_const))]
             #[doc = concat!($extra_feature, "use std::sync::atomic::{", stringify!($atomic_type), ", Ordering};")]
             ///
             #[doc = concat!("let mut some_ints = [const { ", stringify!($atomic_type), "::new(0) }; 10];")]

library/core/tests/lib.rs

@@ -46,7 +46,7 @@
 #![feature(hasher_prefixfree_extras)]
 #![feature(hashmap_internals)]
 #![feature(try_find)]
-#![feature(inline_const)]
+#![cfg_attr(bootstrap, feature(inline_const))]
 #![feature(is_sorted)]
 #![feature(layout_for_ptr)]
 #![feature(pattern)]

library/portable-simd/crates/core_simd/src/lib.rs

@@ -7,7 +7,6 @@
     convert_float_to_int,
     core_intrinsics,
     decl_macro,
-    inline_const,
     intra_doc_pointers,
     repr_simd,
     simd_ffi,

src/doc/unstable-book/src/language-features/inline-const-pat.md

@@ -2,8 +2,6 @@
 
 The tracking issue for this feature is: [#76001]
 
-See also [`inline_const`](inline-const.md)
-
 ------
 
 This feature allows you to use inline constant expressions in pattern position:

src/doc/unstable-book/src/language-features/inline-const.md

@@ -1,32 +0,0 @@
-# `inline_const`
-
-The tracking issue for this feature is: [#76001]
-
-See also [`inline_const_pat`](inline-const-pat.md)
-
-------
-
-This feature allows you to use inline constant expressions. For example, you can
-turn this code:
-
-```rust
-# fn add_one(x: i32) -> i32 { x + 1 }
-const MY_COMPUTATION: i32 = 1 + 2 * 3 / 4;
-
-fn main() {
-    let x = add_one(MY_COMPUTATION);
-}
-```
-
-into this code:
-
-```rust
-#![feature(inline_const)]
-
-# fn add_one(x: i32) -> i32 { x + 1 }
-fn main() {
-    let x = add_one(const { 1 + 2 * 3 / 4 });
-}
-```
-
-[#76001]: https://github.com/rust-lang/rust/issues/76001

src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.rs

@@ -1,4 +1,3 @@
-#![feature(inline_const)]
 #![warn(clippy::indexing_slicing)]
 // We also check the out_of_bounds_indexing lint here, because it lints similar things and
 // we want to avoid false positives.

src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.stderr

@@ -1,5 +1,5 @@
 error: indexing may panic
-  --> tests/ui-toml/suppress_lint_in_const/test.rs:27:5
+  --> tests/ui-toml/suppress_lint_in_const/test.rs:26:5
    |
 LL |     x[index];
    |     ^^^^^^^^
@@ -9,7 +9,7 @@ LL |     x[index];
    = help: to override `-D warnings` add `#[allow(clippy::indexing_slicing)]`
 
 error: indexing may panic
-  --> tests/ui-toml/suppress_lint_in_const/test.rs:42:5
+  --> tests/ui-toml/suppress_lint_in_const/test.rs:41:5
    |
 LL |     v[0];
    |     ^^^^
@@ -17,7 +17,7 @@ LL |     v[0];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui-toml/suppress_lint_in_const/test.rs:43:5
+  --> tests/ui-toml/suppress_lint_in_const/test.rs:42:5
    |
 LL |     v[10];
    |     ^^^^^
@@ -25,7 +25,7 @@ LL |     v[10];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui-toml/suppress_lint_in_const/test.rs:44:5
+  --> tests/ui-toml/suppress_lint_in_const/test.rs:43:5
    |
 LL |     v[1 << 3];
    |     ^^^^^^^^^
@@ -33,7 +33,7 @@ LL |     v[1 << 3];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui-toml/suppress_lint_in_const/test.rs:50:5
+  --> tests/ui-toml/suppress_lint_in_const/test.rs:49:5
    |
 LL |     v[N];
    |     ^^^^
@@ -41,7 +41,7 @@ LL |     v[N];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui-toml/suppress_lint_in_const/test.rs:51:5
+  --> tests/ui-toml/suppress_lint_in_const/test.rs:50:5
    |
 LL |     v[M];
    |     ^^^^

src/tools/clippy/tests/ui/arithmetic_side_effects.rs

@@ -10,7 +10,7 @@
     arithmetic_overflow,
     unconditional_panic
 )]
-#![feature(const_mut_refs, inline_const)]
+#![feature(const_mut_refs)]
 #![warn(clippy::arithmetic_side_effects)]
 
 extern crate proc_macro_derive;

src/tools/clippy/tests/ui/bool_to_int_with_if.fixed

@@ -1,4 +1,4 @@
-#![feature(let_chains, inline_const)]
+#![feature(let_chains)]
 #![warn(clippy::bool_to_int_with_if)]
 #![allow(unused, dead_code, clippy::unnecessary_operation, clippy::no_effect)]
 

src/tools/clippy/tests/ui/bool_to_int_with_if.rs

@@ -1,4 +1,4 @@
-#![feature(let_chains, inline_const)]
+#![feature(let_chains)]
 #![warn(clippy::bool_to_int_with_if)]
 #![allow(unused, dead_code, clippy::unnecessary_operation, clippy::no_effect)]
 

src/tools/clippy/tests/ui/const_is_empty.rs

@@ -1,4 +1,3 @@
-#![feature(inline_const)]
 #![warn(clippy::const_is_empty)]
 #![allow(clippy::needless_late_init, unused_must_use)]
 

src/tools/clippy/tests/ui/const_is_empty.stderr

@@ -1,5 +1,5 @@
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:6:8
+  --> tests/ui/const_is_empty.rs:5:8
    |
 LL |     if "".is_empty() {
    |        ^^^^^^^^^^^^^
@@ -8,151 +8,151 @@ LL |     if "".is_empty() {
    = help: to override `-D warnings` add `#[allow(clippy::const_is_empty)]`
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:9:8
+  --> tests/ui/const_is_empty.rs:8:8
    |
 LL |     if "foobar".is_empty() {
    |        ^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:15:8
+  --> tests/ui/const_is_empty.rs:14:8
    |
 LL |     if b"".is_empty() {
    |        ^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:18:8
+  --> tests/ui/const_is_empty.rs:17:8
    |
 LL |     if b"foobar".is_empty() {
    |        ^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:35:8
+  --> tests/ui/const_is_empty.rs:34:8
    |
 LL |     if empty2.is_empty() {
    |        ^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:38:8
+  --> tests/ui/const_is_empty.rs:37:8
    |
 LL |     if non_empty2.is_empty() {
    |        ^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:60:13
+  --> tests/ui/const_is_empty.rs:59:13
    |
 LL |     let _ = EMPTY_STR.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:62:13
+  --> tests/ui/const_is_empty.rs:61:13
    |
 LL |     let _ = NON_EMPTY_STR.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:64:13
+  --> tests/ui/const_is_empty.rs:63:13
    |
 LL |     let _ = EMPTY_BSTR.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:66:13
+  --> tests/ui/const_is_empty.rs:65:13
    |
 LL |     let _ = NON_EMPTY_BSTR.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:68:13
+  --> tests/ui/const_is_empty.rs:67:13
    |
 LL |     let _ = EMPTY_ARRAY.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:70:13
+  --> tests/ui/const_is_empty.rs:69:13
    |
 LL |     let _ = EMPTY_ARRAY_REPEAT.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:72:13
+  --> tests/ui/const_is_empty.rs:71:13
    |
 LL |     let _ = EMPTY_U8_SLICE.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:74:13
+  --> tests/ui/const_is_empty.rs:73:13
    |
 LL |     let _ = NON_EMPTY_U8_SLICE.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:76:13
+  --> tests/ui/const_is_empty.rs:75:13
    |
 LL |     let _ = NON_EMPTY_ARRAY.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:78:13
+  --> tests/ui/const_is_empty.rs:77:13
    |
 LL |     let _ = NON_EMPTY_ARRAY_REPEAT.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:80:13
+  --> tests/ui/const_is_empty.rs:79:13
    |
 LL |     let _ = EMPTY_REF_ARRAY.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:82:13
+  --> tests/ui/const_is_empty.rs:81:13
    |
 LL |     let _ = NON_EMPTY_REF_ARRAY.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:84:13
+  --> tests/ui/const_is_empty.rs:83:13
    |
 LL |     let _ = EMPTY_SLICE.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:86:13
+  --> tests/ui/const_is_empty.rs:85:13
    |
 LL |     let _ = NON_EMPTY_SLICE.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:88:13
+  --> tests/ui/const_is_empty.rs:87:13
    |
 LL |     let _ = NON_EMPTY_SLICE_REPEAT.is_empty();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:94:13
+  --> tests/ui/const_is_empty.rs:93:13
    |
 LL |     let _ = value.is_empty();
    |             ^^^^^^^^^^^^^^^^
 
 error: this expression always evaluates to false
-  --> tests/ui/const_is_empty.rs:97:13
+  --> tests/ui/const_is_empty.rs:96:13
    |
 LL |     let _ = x.is_empty();
    |             ^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:99:13
+  --> tests/ui/const_is_empty.rs:98:13
    |
 LL |     let _ = "".is_empty();
    |             ^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:101:13
+  --> tests/ui/const_is_empty.rs:100:13
    |
 LL |     let _ = b"".is_empty();
    |             ^^^^^^^^^^^^^^
 
 error: this expression always evaluates to true
-  --> tests/ui/const_is_empty.rs:155:13
+  --> tests/ui/const_is_empty.rs:154:13
    |
 LL |     let _ = val.is_empty();
    |             ^^^^^^^^^^^^^^

src/tools/clippy/tests/ui/indexing_slicing_index.rs

@@ -1,6 +1,5 @@
 //@compile-flags: -Zdeduplicate-diagnostics=yes
 
-#![feature(inline_const)]
 #![warn(clippy::indexing_slicing)]
 // We also check the out_of_bounds_indexing lint here, because it lints similar things and
 // we want to avoid false positives.

src/tools/clippy/tests/ui/indexing_slicing_index.stderr

@@ -1,5 +1,5 @@
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:16:20
+  --> tests/ui/indexing_slicing_index.rs:15:20
    |
 LL | const REF: &i32 = &ARR[idx()]; // This should be linted, since `suppress-restriction-lint-in-const` default is false.
    |                    ^^^^^^^^^^
@@ -10,19 +10,19 @@ LL | const REF: &i32 = &ARR[idx()]; // This should be linted, since `suppress-re
    = help: to override `-D warnings` add `#[allow(clippy::indexing_slicing)]`
 
 error[E0080]: evaluation of `main::{constant#3}` failed
-  --> tests/ui/indexing_slicing_index.rs:48:14
+  --> tests/ui/indexing_slicing_index.rs:47:14
    |
 LL |     const { &ARR[idx4()] };
    |              ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4
 
 note: erroneous constant encountered
-  --> tests/ui/indexing_slicing_index.rs:48:5
+  --> tests/ui/indexing_slicing_index.rs:47:5
    |
 LL |     const { &ARR[idx4()] };
    |     ^^^^^^^^^^^^^^^^^^^^^^
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:29:5
+  --> tests/ui/indexing_slicing_index.rs:28:5
    |
 LL |     x[index];
    |     ^^^^^^^^
@@ -30,7 +30,7 @@ LL |     x[index];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: index is out of bounds
-  --> tests/ui/indexing_slicing_index.rs:32:5
+  --> tests/ui/indexing_slicing_index.rs:31:5
    |
 LL |     x[4];
    |     ^^^^
@@ -39,13 +39,13 @@ LL |     x[4];
    = help: to override `-D warnings` add `#[allow(clippy::out_of_bounds_indexing)]`
 
 error: index is out of bounds
-  --> tests/ui/indexing_slicing_index.rs:34:5
+  --> tests/ui/indexing_slicing_index.rs:33:5
    |
 LL |     x[1 << 3];
    |     ^^^^^^^^^
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:45:14
+  --> tests/ui/indexing_slicing_index.rs:44:14
    |
 LL |     const { &ARR[idx()] };
    |              ^^^^^^^^^^
@@ -54,7 +54,7 @@ LL |     const { &ARR[idx()] };
    = note: the suggestion might not be applicable in constant blocks
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:48:14
+  --> tests/ui/indexing_slicing_index.rs:47:14
    |
 LL |     const { &ARR[idx4()] };
    |              ^^^^^^^^^^^
@@ -63,13 +63,13 @@ LL |     const { &ARR[idx4()] };
    = note: the suggestion might not be applicable in constant blocks
 
 error: index is out of bounds
-  --> tests/ui/indexing_slicing_index.rs:55:5
+  --> tests/ui/indexing_slicing_index.rs:54:5
    |
 LL |     y[4];
    |     ^^^^
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:58:5
+  --> tests/ui/indexing_slicing_index.rs:57:5
    |
 LL |     v[0];
    |     ^^^^
@@ -77,7 +77,7 @@ LL |     v[0];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:60:5
+  --> tests/ui/indexing_slicing_index.rs:59:5
    |
 LL |     v[10];
    |     ^^^^^
@@ -85,7 +85,7 @@ LL |     v[10];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:62:5
+  --> tests/ui/indexing_slicing_index.rs:61:5
    |
 LL |     v[1 << 3];
    |     ^^^^^^^^^
@@ -93,13 +93,13 @@ LL |     v[1 << 3];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: index is out of bounds
-  --> tests/ui/indexing_slicing_index.rs:70:5
+  --> tests/ui/indexing_slicing_index.rs:69:5
    |
 LL |     x[N];
    |     ^^^^
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:73:5
+  --> tests/ui/indexing_slicing_index.rs:72:5
    |
 LL |     v[N];
    |     ^^^^
@@ -107,7 +107,7 @@ LL |     v[N];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: indexing may panic
-  --> tests/ui/indexing_slicing_index.rs:75:5
+  --> tests/ui/indexing_slicing_index.rs:74:5
    |
 LL |     v[M];
    |     ^^^^
@@ -115,7 +115,7 @@ LL |     v[M];
    = help: consider using `.get(n)` or `.get_mut(n)` instead
 
 error: index is out of bounds
-  --> tests/ui/indexing_slicing_index.rs:79:13
+  --> tests/ui/indexing_slicing_index.rs:78:13
    |
 LL |     let _ = x[4];
    |             ^^^^

src/tools/clippy/tests/ui/manual_float_methods.rs

@@ -2,7 +2,6 @@
 //@aux-build:proc_macros.rs
 #![allow(clippy::needless_if, unused)]
 #![warn(clippy::manual_is_infinite, clippy::manual_is_finite)]
-#![feature(inline_const)]
 
 #[macro_use]
 extern crate proc_macros;

src/tools/clippy/tests/ui/manual_float_methods.stderr

@@ -1,5 +1,5 @@
 error: manually checking if a float is infinite
-  --> tests/ui/manual_float_methods.rs:23:8
+  --> tests/ui/manual_float_methods.rs:22:8
    |
 LL |     if x == f32::INFINITY || x == f32::NEG_INFINITY {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the dedicated method instead: `x.is_infinite()`
@@ -8,7 +8,7 @@ LL |     if x == f32::INFINITY || x == f32::NEG_INFINITY {}
    = help: to override `-D warnings` add `#[allow(clippy::manual_is_infinite)]`
 
 error: manually checking if a float is finite
-  --> tests/ui/manual_float_methods.rs:24:8
+  --> tests/ui/manual_float_methods.rs:23:8
    |
 LL |     if x != f32::INFINITY && x != f32::NEG_INFINITY {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -29,13 +29,13 @@ LL |     if !x.is_infinite() {}
    |        ~~~~~~~~~~~~~~~~
 
 error: manually checking if a float is infinite
-  --> tests/ui/manual_float_methods.rs:25:8
+  --> tests/ui/manual_float_methods.rs:24:8
    |
 LL |     if x == INFINITE || x == NEG_INFINITE {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the dedicated method instead: `x.is_infinite()`
 
 error: manually checking if a float is finite
-  --> tests/ui/manual_float_methods.rs:26:8
+  --> tests/ui/manual_float_methods.rs:25:8
    |
 LL |     if x != INFINITE && x != NEG_INFINITE {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -54,13 +54,13 @@ LL |     if !x.is_infinite() {}
    |        ~~~~~~~~~~~~~~~~
 
 error: manually checking if a float is infinite
-  --> tests/ui/manual_float_methods.rs:28:8
+  --> tests/ui/manual_float_methods.rs:27:8
    |
 LL |     if x == f64::INFINITY || x == f64::NEG_INFINITY {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the dedicated method instead: `x.is_infinite()`
 
 error: manually checking if a float is finite
-  --> tests/ui/manual_float_methods.rs:29:8
+  --> tests/ui/manual_float_methods.rs:28:8
    |
 LL |     if x != f64::INFINITY && x != f64::NEG_INFINITY {}
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

src/tools/clippy/tests/ui/never_loop.rs

@@ -1,4 +1,4 @@
-#![feature(inline_const, try_blocks)]
+#![feature(try_blocks)]
 #![allow(
     clippy::eq_op,
     clippy::single_match,

src/tools/clippy/tests/ui/panicking_macros.rs

@@ -1,5 +1,4 @@
 #![allow(clippy::assertions_on_constants, clippy::eq_op, clippy::let_unit_value)]
-#![feature(inline_const)]
 #![warn(clippy::unimplemented, clippy::unreachable, clippy::todo, clippy::panic)]
 
 extern crate core;

src/tools/clippy/tests/ui/panicking_macros.stderr

@@ -1,5 +1,5 @@
 error: `panic` should not be present in production code
-  --> tests/ui/panicking_macros.rs:23:5
+  --> tests/ui/panicking_macros.rs:22:5
    |
 LL |     panic!();
    |     ^^^^^^^^
@@ -8,19 +8,19 @@ LL |     panic!();
    = help: to override `-D warnings` add `#[allow(clippy::panic)]`
 
 error: `panic` should not be present in production code
-  --> tests/ui/panicking_macros.rs:26:5
+  --> tests/ui/panicking_macros.rs:25:5
    |
 LL |     panic!("message");
    |     ^^^^^^^^^^^^^^^^^
 
 error: `panic` should not be present in production code
-  --> tests/ui/panicking_macros.rs:28:5
+  --> tests/ui/panicking_macros.rs:27:5
    |
 LL |     panic!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `todo` should not be present in production code
-  --> tests/ui/panicking_macros.rs:35:5
+  --> tests/ui/panicking_macros.rs:34:5
    |
 LL |     todo!();
    |     ^^^^^^^
@@ -29,19 +29,19 @@ LL |     todo!();
    = help: to override `-D warnings` add `#[allow(clippy::todo)]`
 
 error: `todo` should not be present in production code
-  --> tests/ui/panicking_macros.rs:38:5
+  --> tests/ui/panicking_macros.rs:37:5
    |
 LL |     todo!("message");
    |     ^^^^^^^^^^^^^^^^
 
 error: `todo` should not be present in production code
-  --> tests/ui/panicking_macros.rs:40:5
+  --> tests/ui/panicking_macros.rs:39:5
    |
 LL |     todo!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `unimplemented` should not be present in production code
-  --> tests/ui/panicking_macros.rs:47:5
+  --> tests/ui/panicking_macros.rs:46:5
    |
 LL |     unimplemented!();
    |     ^^^^^^^^^^^^^^^^
@@ -50,19 +50,19 @@ LL |     unimplemented!();
    = help: to override `-D warnings` add `#[allow(clippy::unimplemented)]`
 
 error: `unimplemented` should not be present in production code
-  --> tests/ui/panicking_macros.rs:50:5
+  --> tests/ui/panicking_macros.rs:49:5
    |
 LL |     unimplemented!("message");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `unimplemented` should not be present in production code
-  --> tests/ui/panicking_macros.rs:52:5
+  --> tests/ui/panicking_macros.rs:51:5
    |
 LL |     unimplemented!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: usage of the `unreachable!` macro
-  --> tests/ui/panicking_macros.rs:59:5
+  --> tests/ui/panicking_macros.rs:58:5
    |
 LL |     unreachable!();
    |     ^^^^^^^^^^^^^^
@@ -71,37 +71,37 @@ LL |     unreachable!();
    = help: to override `-D warnings` add `#[allow(clippy::unreachable)]`
 
 error: usage of the `unreachable!` macro
-  --> tests/ui/panicking_macros.rs:62:5
+  --> tests/ui/panicking_macros.rs:61:5
    |
 LL |     unreachable!("message");
    |     ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: usage of the `unreachable!` macro
-  --> tests/ui/panicking_macros.rs:64:5
+  --> tests/ui/panicking_macros.rs:63:5
    |
 LL |     unreachable!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `panic` should not be present in production code
-  --> tests/ui/panicking_macros.rs:71:5
+  --> tests/ui/panicking_macros.rs:70:5
    |
 LL |     panic!();
    |     ^^^^^^^^
 
 error: `todo` should not be present in production code
-  --> tests/ui/panicking_macros.rs:73:5
+  --> tests/ui/panicking_macros.rs:72:5
    |
 LL |     todo!();
    |     ^^^^^^^
 
 error: `unimplemented` should not be present in production code
-  --> tests/ui/panicking_macros.rs:75:5
+  --> tests/ui/panicking_macros.rs:74:5
    |
 LL |     unimplemented!();
    |     ^^^^^^^^^^^^^^^^
 
 error: usage of the `unreachable!` macro
-  --> tests/ui/panicking_macros.rs:77:5
+  --> tests/ui/panicking_macros.rs:76:5
    |
 LL |     unreachable!();
    |     ^^^^^^^^^^^^^^

src/tools/miri/tests/pass/portable-simd.rs

@@ -1,5 +1,5 @@
 //@compile-flags: -Zmiri-strict-provenance
-#![feature(portable_simd, adt_const_params, inline_const, core_intrinsics)]
+#![feature(portable_simd, adt_const_params, core_intrinsics)]
 #![allow(incomplete_features, internal_features)]
 use std::intrinsics::simd as intrinsics;
 use std::ptr;

tests/codegen/const_scalar_pair.rs

@@ -1,7 +1,5 @@
 //@ compile-flags: --crate-type=lib -Copt-level=0 -Zmir-opt-level=0 -C debuginfo=2
 
-#![feature(inline_const)]
-
 // Test that we don't generate a memory allocation for the constant
 // and read the fields from that, but instead just create the value pair directly.
 pub fn foo() -> (i32, i32) {

tests/codegen/intrinsics/transmute.rs

@@ -4,7 +4,6 @@
 #![crate_type = "lib"]
 #![feature(core_intrinsics)]
 #![feature(custom_mir)]
-#![feature(inline_const)]
 #![allow(unreachable_code)]
 
 use std::intrinsics::{transmute, transmute_unchecked};

tests/codegen/issues/issue-96274.rs

@@ -1,7 +1,6 @@
 //@ compile-flags: -O
 
 #![crate_type = "lib"]
-#![feature(inline_const)]
 
 use std::mem::MaybeUninit;
 

tests/codegen/sanitizer/cfi/emit-type-metadata-id-itanium-cxx-abi-paths.rs

@@ -5,7 +5,7 @@
 //@ compile-flags: -Clto -Cno-prepopulate-passes -Copt-level=0 -Zsanitizer=cfi -Ctarget-feature=-crt-static
 
 #![crate_type="lib"]
-#![feature(inline_const, type_alias_impl_trait)]
+#![feature(type_alias_impl_trait)]
 
 extern crate core;
 

tests/codegen/simd-intrinsic/simd-intrinsic-transmute-array.rs

@@ -4,7 +4,6 @@
 #![crate_type = "lib"]
 #![allow(non_camel_case_types)]
 #![feature(repr_simd, intrinsics)]
-#![feature(inline_const)]
 
 #[repr(simd)]
 #[derive(Copy, Clone)]

tests/mir-opt/building/custom/arrays.rs

@@ -1,5 +1,5 @@
 // skip-filecheck
-#![feature(custom_mir, core_intrinsics, inline_const)]
+#![feature(custom_mir, core_intrinsics)]
 
 extern crate core;
 use core::intrinsics::mir::*;

tests/mir-opt/building/custom/consts.rs

@@ -1,5 +1,5 @@
 // skip-filecheck
-#![feature(custom_mir, core_intrinsics, inline_const)]
+#![feature(custom_mir, core_intrinsics)]
 
 extern crate core;
 use core::intrinsics::mir::*;

tests/mir-opt/building/custom/operators.rs

@@ -1,6 +1,6 @@
 // skip-filecheck
 //@ compile-flags: --crate-type=lib
-#![feature(custom_mir, core_intrinsics, inline_const)]
+#![feature(custom_mir, core_intrinsics)]
 use std::intrinsics::mir::*;
 
 // EMIT_MIR operators.f.built.after.mir

tests/mir-opt/const_prop/invalid_constant.rs

@@ -4,7 +4,6 @@
 // Verify that we can pretty print invalid constants.
 
 #![feature(adt_const_params)]
-#![feature(inline_const)]
 #![allow(incomplete_features)]
 
 #[derive(Copy, Clone)]

tests/pretty/stmt_expr_attributes.rs

@@ -1,6 +1,5 @@
 //@ pp-exact
 
-#![feature(inline_const)]
 #![feature(inline_const_pat)]
 #![feature(rustc_attrs)]
 #![feature(stmt_expr_attributes)]

tests/ui/const-generics/generic_const_exprs/const-block-is-poly.rs

@@ -1,4 +1,4 @@
-#![feature(inline_const, generic_const_exprs)]
+#![feature(generic_const_exprs)]
 //~^ WARN the feature `generic_const_exprs` is incomplete
 
 fn foo<T>() {

tests/ui/const-generics/generic_const_exprs/const-block-is-poly.stderr

@@ -1,8 +1,8 @@
 warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/const-block-is-poly.rs:1:26
+  --> $DIR/const-block-is-poly.rs:1:12
    |
-LL | #![feature(inline_const, generic_const_exprs)]
-   |                          ^^^^^^^^^^^^^^^^^^^
+LL | #![feature(generic_const_exprs)]
+   |            ^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
    = note: `#[warn(incomplete_features)]` on by default

tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_ty_with_infer_2.rs

@@ -1,5 +1,5 @@
 //@ check-pass
-#![feature(inline_const, generic_const_exprs)]
+#![feature(generic_const_exprs)]
 #![allow(incomplete_features)]
 use std::marker::PhantomData;
 

tests/ui/const-generics/generic_const_exprs/inline-const-in-const-generic-defaults.rs

@@ -1,7 +1,6 @@
 //@ check-pass
 
 #![feature(generic_const_exprs)]
-#![feature(inline_const)]
 #![allow(incomplete_features)]
 
 pub struct ConstDefaultUnstable<const N: usize = { const { 3 } }>;

tests/ui/const_prop/dont-propagate-generic-instance-2.rs

@@ -1,7 +1,5 @@
 //@ run-pass
 
-#![feature(inline_const)]
-
 // Makes sure we don't propagate generic instances of `Self: ?Sized` blanket impls.
 // This is relevant when we have an overlapping impl and builtin dyn instance.
 // See <https://github.com/rust-lang/rust/pull/114941> for more context.

tests/ui/consts/closure-structural-match-issue-90013.rs

@@ -1,6 +1,5 @@
 // Regression test for issue 90013.
 //@ check-pass
-#![feature(inline_const)]
 
 fn main() {
     const { || {} };

tests/ui/consts/const-block-const-bound.rs

@@ -1,7 +1,7 @@
 //@ known-bug: #103507
 
 #![allow(unused)]
-#![feature(const_trait_impl, inline_const, negative_impls)]
+#![feature(const_trait_impl, negative_impls)]
 
 use std::marker::Destruct;
 

tests/ui/consts/const-blocks/fn-call-in-const.rs

@@ -1,6 +1,5 @@
 //@ run-pass
 
-#![feature(inline_const)]
 #![allow(unused)]
 
 // Some type that is not copyable.

tests/ui/consts/const-eval/heap/alloc_intrinsic_zero_sized.rs

@@ -1,7 +1,6 @@
 //@ run-pass
 #![feature(core_intrinsics)]
 #![feature(const_heap)]
-#![feature(inline_const)]
 
 use std::intrinsics;
 

tests/ui/consts/const-eval/heap/dealloc_intrinsic_zero_sized.rs

@@ -1,7 +1,6 @@
 //@ run-pass
 #![feature(core_intrinsics)]
 #![feature(const_heap)]
-#![feature(inline_const)]
 
 use std::intrinsics;
 

tests/ui/consts/issue-102117.rs

@@ -1,4 +1,4 @@
-#![feature(inline_const, const_type_id)]
+#![feature(const_type_id)]
 
 use std::alloc::Layout;
 use std::any::TypeId;

tests/ui/feature-gates/feature-gate-inline_const.rs

@@ -1,6 +0,0 @@
-fn main() {
-    let _ = const {
-        //~^ ERROR inline-const is experimental [E0658]
-        true
-    };
-}

tests/ui/feature-gates/feature-gate-inline_const.stderr

@@ -1,13 +0,0 @@
-error[E0658]: inline-const is experimental
-  --> $DIR/feature-gate-inline_const.rs:2:13
-   |
-LL |     let _ = const {
-   |             ^^^^^
-   |
-   = note: see issue #76001 <https://github.com/rust-lang/rust/issues/76001> for more information
-   = help: add `#![feature(inline_const)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0658`.

tests/ui/impl-trait/normalize-tait-in-const.rs

@@ -3,7 +3,6 @@
 #![feature(type_alias_impl_trait)]
 #![feature(const_trait_impl)]
 #![feature(const_refs_to_cell)]
-#![feature(inline_const)]
 
 use std::marker::Destruct;
 

tests/ui/impl-trait/normalize-tait-in-const.stderr

@@ -1,11 +1,11 @@
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/normalize-tait-in-const.rs:25:42
+  --> $DIR/normalize-tait-in-const.rs:24:42
    |
 LL | const fn with_positive<F: ~const for<'a> Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
    |                                          ^^^^^^^^^^^^^^^^^
 
 error[E0015]: cannot call non-const closure in constant functions
-  --> $DIR/normalize-tait-in-const.rs:26:5
+  --> $DIR/normalize-tait-in-const.rs:25:5
    |
 LL |     fun(filter_positive());
    |     ^^^^^^^^^^^^^^^^^^^^^^
@@ -21,7 +21,7 @@ LL + #![feature(effects)]
    |
 
 error[E0493]: destructor of `F` cannot be evaluated at compile-time
-  --> $DIR/normalize-tait-in-const.rs:25:79
+  --> $DIR/normalize-tait-in-const.rs:24:79
    |
 LL | const fn with_positive<F: ~const for<'a> Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
    |                                                                               ^^^ the destructor for this type cannot be evaluated in constant functions

tests/ui/inline-const/const-expr-array-init.rs

@@ -1,7 +1,5 @@
 //@ build-pass
 
-#![feature(inline_const)]
-
 use std::cell::Cell;
 
 fn main() {

tests/ui/inline-const/const-expr-basic.rs

@@ -1,7 +1,5 @@
 //@ run-pass
 
-#![feature(inline_const)]
-
 fn foo() -> i32 {
     const {
         let x = 5 + 10;

tests/ui/inline-const/const-expr-generic-err.rs

@@ -1,5 +1,4 @@
 //@ build-fail
-#![feature(inline_const)]
 
 fn foo<T>() {
     const { assert!(std::mem::size_of::<T>() == 0); } //~ ERROR E0080

tests/ui/inline-const/const-expr-generic-err.stderr

@@ -1,37 +1,37 @@
 error[E0080]: evaluation of `foo::<i32>::{constant#0}` failed
-  --> $DIR/const-expr-generic-err.rs:5:13
+  --> $DIR/const-expr-generic-err.rs:4:13
    |
 LL |     const { assert!(std::mem::size_of::<T>() == 0); }
-   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'assertion failed: std::mem::size_of::<T>() == 0', $DIR/const-expr-generic-err.rs:5:13
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'assertion failed: std::mem::size_of::<T>() == 0', $DIR/const-expr-generic-err.rs:4:13
    |
    = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 note: erroneous constant encountered
-  --> $DIR/const-expr-generic-err.rs:5:5
+  --> $DIR/const-expr-generic-err.rs:4:5
    |
 LL |     const { assert!(std::mem::size_of::<T>() == 0); }
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 note: the above error was encountered while instantiating `fn foo::<i32>`
-  --> $DIR/const-expr-generic-err.rs:13:5
+  --> $DIR/const-expr-generic-err.rs:12:5
    |
 LL |     foo::<i32>();
    |     ^^^^^^^^^^^^
 
 error[E0080]: evaluation of `bar::<0>::{constant#0}` failed
-  --> $DIR/const-expr-generic-err.rs:9:13
+  --> $DIR/const-expr-generic-err.rs:8:13
    |
 LL |     const { N - 1 }
    |             ^^^^^ attempt to compute `0_usize - 1_usize`, which would overflow
 
 note: erroneous constant encountered
-  --> $DIR/const-expr-generic-err.rs:9:5
+  --> $DIR/const-expr-generic-err.rs:8:5
    |
 LL |     const { N - 1 }
    |     ^^^^^^^^^^^^^^^
 
 note: erroneous constant encountered
-  --> $DIR/const-expr-generic-err.rs:9:5
+  --> $DIR/const-expr-generic-err.rs:8:5
    |
 LL |     const { N - 1 }
    |     ^^^^^^^^^^^^^^^
@@ -39,7 +39,7 @@ LL |     const { N - 1 }
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 note: the above error was encountered while instantiating `fn bar::<0>`
-  --> $DIR/const-expr-generic-err.rs:14:5
+  --> $DIR/const-expr-generic-err.rs:13:5
    |
 LL |     bar::<0>();
    |     ^^^^^^^^^^

tests/ui/inline-const/const-expr-generic-err2.rs

@@ -1,5 +1,3 @@
-#![feature(inline_const)]
-
 fn foo<T>() {
     let _ = [0u8; const { std::mem::size_of::<T>() }];
     //~^ ERROR: constant expression depends on a generic parameter

tests/ui/inline-const/const-expr-generic-err2.stderr

@@ -1,5 +1,5 @@
 error: constant expression depends on a generic parameter
-  --> $DIR/const-expr-generic-err2.rs:4:19
+  --> $DIR/const-expr-generic-err2.rs:2:19
    |
 LL |     let _ = [0u8; const { std::mem::size_of::<T>() }];
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

tests/ui/inline-const/const-expr-generic.rs

@@ -1,5 +1,4 @@
 //@ check-pass
-#![feature(inline_const)]
 
 fn foo<T>() -> usize {
     const { std::mem::size_of::<T>() }

tests/ui/inline-const/const-expr-inference.rs

@@ -1,7 +1,5 @@
 //@ check-pass
 
-#![feature(inline_const)]
-
 pub fn todo<T>() -> T {
     const { todo!() }
 }

tests/ui/inline-const/const-expr-lifetime-err.rs

@@ -1,5 +1,4 @@
 #![feature(const_mut_refs)]
-#![feature(inline_const)]
 
 use std::marker::PhantomData;
 

tests/ui/inline-const/const-expr-lifetime-err.stderr

@@ -1,5 +1,5 @@
 error[E0597]: `y` does not live long enough
-  --> $DIR/const-expr-lifetime-err.rs:23:30
+  --> $DIR/const-expr-lifetime-err.rs:22:30
    |
 LL | fn foo<'a>() {
    |        -- lifetime `'a` defined here

tests/ui/inline-const/const-expr-lifetime.rs

@@ -1,7 +1,6 @@
 //@ run-pass
 
 #![feature(const_mut_refs)]
-#![feature(inline_const)]
 
 use std::marker::PhantomData;
 

tests/ui/inline-const/const-expr-macro.rs

@@ -1,7 +1,5 @@
 //@ run-pass
 
-#![feature(inline_const)]
-
 macro_rules! do_const_block{
     ($val:block) => { const $val }
 }

tests/ui/inline-const/const-expr-reference.rs

@@ -1,7 +1,5 @@
 //@ run-pass
 
-#![feature(inline_const)]
-
 const fn bar() -> i32 {
     const {
         2 + 3

tests/ui/inline-const/const-match-pat-lifetime.rs

@@ -1,7 +1,6 @@
 //@ run-pass
 
 #![feature(const_mut_refs)]
-#![feature(inline_const)]
 #![feature(inline_const_pat)]
 
 use std::marker::PhantomData;

tests/ui/inline-const/elided-lifetime-being-infer-vars.rs

@@ -1,7 +1,5 @@
 //@ check-pass
 
-#![feature(inline_const)]
-
 fn main() {
     let _my_usize = const {
         let a = 10_usize;

tests/ui/inline-const/expr-unsafe-err.rs

@@ -1,4 +1,3 @@
-#![feature(inline_const)]
 const unsafe fn require_unsafe() -> usize {
     1
 }

tests/ui/inline-const/expr-unsafe-err.stderr

@@ -1,5 +1,5 @@
 error[E0133]: call to unsafe function `require_unsafe` is unsafe and requires unsafe function or block
-  --> $DIR/expr-unsafe-err.rs:8:9
+  --> $DIR/expr-unsafe-err.rs:7:9
    |
 LL |         require_unsafe();
    |         ^^^^^^^^^^^^^^^^ call to unsafe function

tests/ui/inline-const/expr-unsafe.rs

@@ -1,7 +1,7 @@
 //@ check-pass
 
 #![warn(unused_unsafe)]
-#![feature(inline_const)]
+
 const unsafe fn require_unsafe() -> usize { 1 }
 
 fn main() {

tests/ui/inline-const/expr-with-block-err.rs

@@ -1,5 +1,3 @@
-#![feature(inline_const)]
-
 fn main() {
     const { 2 } - const { 1 };
     //~^ ERROR mismatched types

tests/ui/inline-const/expr-with-block-err.stderr

@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/expr-with-block-err.rs:4:13
+  --> $DIR/expr-with-block-err.rs:2:13
    |
 LL |     const { 2 } - const { 1 };
    |             ^ expected `()`, found integer

tests/ui/inline-const/expr-with-block.rs

@@ -1,5 +1,5 @@
 //@ check-pass
-#![feature(inline_const)]
+
 fn main() {
     match true {
         true => const {}

tests/ui/inline-const/instance-doesnt-depend-on-type.rs

@@ -1,8 +1,6 @@
 //@ check-pass
 // issue: 114660
 
-#![feature(inline_const)]
-
 fn main() {
     const { core::mem::transmute::<u8, u8> };
     // Don't resolve the instance of this inline constant to be an intrinsic,

tests/ui/inline-const/interpolated.rs

@@ -1,7 +1,5 @@
 //@ check-pass
 
-#![feature(inline_const)]
-
 // This used to be unsupported since the parser first tries to check if we have
 // any nested items, and then checks for statements (and expressions). The heuristic
 // that we were using to detect the beginning of a const item was incorrect, so

tests/ui/inline-const/promotion.rs

@@ -1,4 +1,3 @@
-#![feature(inline_const)]
 #![allow(arithmetic_overflow, unconditional_panic)]
 
 // The only way to have promoteds that fail is in `const fn` called from `const`/`static`.

tests/ui/inline-const/promotion.stderr

@@ -1,5 +1,5 @@
 error[E0716]: temporary value dropped while borrowed
-  --> $DIR/promotion.rs:17:37
+  --> $DIR/promotion.rs:16:37
    |
 LL |             let _x: &'static i32 = &div_by_zero();
    |                     ------------    ^^^^^^^^^^^^^ creates a temporary value which is freed while still in use

tests/ui/inline-const/required-const.rs

@@ -1,6 +1,5 @@
 //@ build-fail
 //@ compile-flags: -Zmir-opt-level=3
-#![feature(inline_const)]
 
 fn foo<T>() {
     if false {

tests/ui/inline-const/required-const.stderr

@@ -1,13 +1,13 @@
 error[E0080]: evaluation of `foo::<i32>::{constant#0}` failed
-  --> $DIR/required-const.rs:7:17
+  --> $DIR/required-const.rs:6:17
    |
 LL |         const { panic!() }
-   |                 ^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/required-const.rs:7:17
+   |                 ^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/required-const.rs:6:17
    |
    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 note: erroneous constant encountered
-  --> $DIR/required-const.rs:7:9
+  --> $DIR/required-const.rs:6:9
    |
 LL |         const { panic!() }
    |         ^^^^^^^^^^^^^^^^^^

tests/ui/lifetimes/unusual-rib-combinations.rs

@@ -1,5 +1,3 @@
-#![feature(inline_const)]
-
 struct S<'a>(&'a u8);
 fn foo() {}
 

tests/ui/lifetimes/unusual-rib-combinations.stderr

@@ -1,11 +1,11 @@
 error[E0106]: missing lifetime specifier
-  --> $DIR/unusual-rib-combinations.rs:24:15
+  --> $DIR/unusual-rib-combinations.rs:22:15
    |
 LL | fn d<const C: S>() {}
    |               ^ expected named lifetime parameter
 
 error[E0770]: the type of const parameters must not depend on other generic parameters
-  --> $DIR/unusual-rib-combinations.rs:29:22
+  --> $DIR/unusual-rib-combinations.rs:27:22
    |
 LL | struct Bar<const N: &'a (dyn for<'a> Foo<'a>)>;
    |                      ^^ the type must not depend on the parameter `'a`
@@ -13,25 +13,25 @@ LL | struct Bar<const N: &'a (dyn for<'a> Foo<'a>)>;
    = note: lifetime parameters may not be used in the type of const parameters
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/unusual-rib-combinations.rs:7:16
+  --> $DIR/unusual-rib-combinations.rs:5:16
    |
 LL | fn a() -> [u8; foo::()] {
    |                ^^^^^^^ only `Fn` traits may use parentheses
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/unusual-rib-combinations.rs:14:15
+  --> $DIR/unusual-rib-combinations.rs:12:15
    |
 LL | fn b<const C: u8()>() {}
    |               ^^^^ only `Fn` traits may use parentheses
 
 error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
-  --> $DIR/unusual-rib-combinations.rs:18:10
+  --> $DIR/unusual-rib-combinations.rs:16:10
    |
 LL | fn c<T = u8()>() {}
    |          ^^^^ only `Fn` traits may use parentheses
 
 error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
-  --> $DIR/unusual-rib-combinations.rs:18:6
+  --> $DIR/unusual-rib-combinations.rs:16:6
    |
 LL | fn c<T = u8()>() {}
    |      ^^^^^^^^
@@ -41,7 +41,7 @@ LL | fn c<T = u8()>() {}
    = note: `#[deny(invalid_type_param_default)]` on by default
 
 error[E0308]: mismatched types
-  --> $DIR/unusual-rib-combinations.rs:7:16
+  --> $DIR/unusual-rib-combinations.rs:5:16
    |
 LL | fn a() -> [u8; foo::()] {
    |                ^^^^^^^ expected `usize`, found fn item
@@ -50,7 +50,7 @@ LL | fn a() -> [u8; foo::()] {
            found fn item `fn() {foo}`
 
 error: `S<'_>` is forbidden as the type of a const generic parameter
-  --> $DIR/unusual-rib-combinations.rs:24:15
+  --> $DIR/unusual-rib-combinations.rs:22:15
    |
 LL | fn d<const C: S>() {}
    |               ^

tests/ui/lint/invalid_from_utf8.rs

@@ -1,6 +1,5 @@
 //@ check-pass
 
-#![feature(inline_const)]
 #![feature(concat_bytes)]
 
 #![warn(invalid_from_utf8_unchecked)]

tests/ui/lint/invalid_from_utf8.stderr

@@ -1,5 +1,5 @@
 warning: calls to `std::str::from_utf8_unchecked_mut` with a invalid literal are undefined behavior
-  --> $DIR/invalid_from_utf8.rs:21:9
+  --> $DIR/invalid_from_utf8.rs:20:9
    |
 LL |         std::str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112, 121]);
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^
@@ -7,13 +7,13 @@ LL |         std::str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112
    |                                                the literal was valid UTF-8 up to the 2 bytes
    |
 note: the lint level is defined here
-  --> $DIR/invalid_from_utf8.rs:6:9
+  --> $DIR/invalid_from_utf8.rs:5:9
    |
 LL | #![warn(invalid_from_utf8_unchecked)]
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8_unchecked_mut` with a invalid literal are undefined behavior
-  --> $DIR/invalid_from_utf8.rs:23:9
+  --> $DIR/invalid_from_utf8.rs:22:9
    |
 LL |         std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^
@@ -21,7 +21,7 @@ LL |         std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i',
    |                                                the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8_unchecked` with a invalid literal are undefined behavior
-  --> $DIR/invalid_from_utf8.rs:41:9
+  --> $DIR/invalid_from_utf8.rs:40:9
    |
 LL |         std::str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]);
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^
@@ -29,7 +29,7 @@ LL |         std::str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]);
    |                                        the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8_unchecked` with a invalid literal are undefined behavior
-  --> $DIR/invalid_from_utf8.rs:43:9
+  --> $DIR/invalid_from_utf8.rs:42:9
    |
 LL |         std::str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^
@@ -37,7 +37,7 @@ LL |         std::str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'
    |                                        the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8_unchecked` with a invalid literal are undefined behavior
-  --> $DIR/invalid_from_utf8.rs:45:9
+  --> $DIR/invalid_from_utf8.rs:44:9
    |
 LL |         std::str::from_utf8_unchecked(b"cl\x82ippy");
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------^
@@ -45,7 +45,7 @@ LL |         std::str::from_utf8_unchecked(b"cl\x82ippy");
    |                                       the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8_unchecked` with a invalid literal are undefined behavior
-  --> $DIR/invalid_from_utf8.rs:47:9
+  --> $DIR/invalid_from_utf8.rs:46:9
    |
 LL |         std::str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy"));
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------^
@@ -53,7 +53,7 @@ LL |         std::str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy"));
    |                                       the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8_mut` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:64:9
+  --> $DIR/invalid_from_utf8.rs:63:9
    |
 LL |         std::str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]);
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^
@@ -61,13 +61,13 @@ LL |         std::str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]);
    |                                      the literal was valid UTF-8 up to the 2 bytes
    |
 note: the lint level is defined here
-  --> $DIR/invalid_from_utf8.rs:7:9
+  --> $DIR/invalid_from_utf8.rs:6:9
    |
 LL | #![warn(invalid_from_utf8)]
    |         ^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8_mut` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:66:9
+  --> $DIR/invalid_from_utf8.rs:65:9
    |
 LL |         std::str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^
@@ -75,7 +75,7 @@ LL |         std::str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p'
    |                                      the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:84:9
+  --> $DIR/invalid_from_utf8.rs:83:9
    |
 LL |         std::str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]);
    |         ^^^^^^^^^^^^^^^^^^^^^----------------------------------^
@@ -83,7 +83,7 @@ LL |         std::str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]);
    |                              the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:86:9
+  --> $DIR/invalid_from_utf8.rs:85:9
    |
 LL |         std::str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
    |         ^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^
@@ -91,7 +91,7 @@ LL |         std::str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y'])
    |                              the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:88:9
+  --> $DIR/invalid_from_utf8.rs:87:9
    |
 LL |         std::str::from_utf8(b"cl\x82ippy");
    |         ^^^^^^^^^^^^^^^^^^^^-------------^
@@ -99,7 +99,7 @@ LL |         std::str::from_utf8(b"cl\x82ippy");
    |                             the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:90:9
+  --> $DIR/invalid_from_utf8.rs:89:9
    |
 LL |         std::str::from_utf8(concat_bytes!(b"cl", b"\x82ippy"));
    |         ^^^^^^^^^^^^^^^^^^^^---------------------------------^
@@ -107,7 +107,7 @@ LL |         std::str::from_utf8(concat_bytes!(b"cl", b"\x82ippy"));
    |                             the literal was valid UTF-8 up to the 2 bytes
 
 warning: calls to `std::str::from_utf8_mut` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:97:5
+  --> $DIR/invalid_from_utf8.rs:96:5
    |
 LL |     let mut a = [99, 108, 130, 105, 112, 112, 121];
    |                 ---------------------------------- the literal was valid UTF-8 up to the 2 bytes
@@ -115,7 +115,7 @@ LL |     std::str::from_utf8_mut(&mut a);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8_mut` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:101:5
+  --> $DIR/invalid_from_utf8.rs:100:5
    |
 LL |     let mut a = [99, 108, 130, 105, 112, 112, 121];
    |                 ---------------------------------- the literal was valid UTF-8 up to the 2 bytes
@@ -124,7 +124,7 @@ LL |     std::str::from_utf8_mut(c);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:104:5
+  --> $DIR/invalid_from_utf8.rs:103:5
    |
 LL |     let mut c = &[99, 108, 130, 105, 112, 112, 121];
    |                  ---------------------------------- the literal was valid UTF-8 up to the 2 bytes
@@ -132,7 +132,7 @@ LL |     std::str::from_utf8(c);
    |     ^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:107:5
+  --> $DIR/invalid_from_utf8.rs:106:5
    |
 LL |     const INVALID_1: [u8; 7] = [99, 108, 130, 105, 112, 112, 121];
    |                                ---------------------------------- the literal was valid UTF-8 up to the 2 bytes
@@ -140,7 +140,7 @@ LL |     std::str::from_utf8(&INVALID_1);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:110:5
+  --> $DIR/invalid_from_utf8.rs:109:5
    |
 LL |     static INVALID_2: [u8; 7] = [99, 108, 130, 105, 112, 112, 121];
    |                                 ---------------------------------- the literal was valid UTF-8 up to the 2 bytes
@@ -148,7 +148,7 @@ LL |     std::str::from_utf8(&INVALID_2);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:113:5
+  --> $DIR/invalid_from_utf8.rs:112:5
    |
 LL |     const INVALID_3: &'static [u8; 7] = &[99, 108, 130, 105, 112, 112, 121];
    |                                          ---------------------------------- the literal was valid UTF-8 up to the 2 bytes
@@ -156,7 +156,7 @@ LL |     std::str::from_utf8(INVALID_3);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 warning: calls to `std::str::from_utf8` with a invalid literal always return an error
-  --> $DIR/invalid_from_utf8.rs:116:5
+  --> $DIR/invalid_from_utf8.rs:115:5
    |
 LL |     const INVALID_4: &'static [u8; 7] = { &[99, 108, 130, 105, 112, 112, 121] };
    |                                            ---------------------------------- the literal was valid UTF-8 up to the 2 bytes

tests/ui/lint/non-local-defs/consts.rs

@@ -2,8 +2,6 @@
 //@ edition:2021
 //@ rustc-env:CARGO_CRATE_NAME=non_local_def
 
-#![feature(inline_const)]
-
 struct Test;
 
 trait Uto {}

tests/ui/lint/non-local-defs/consts.stderr

@@ -1,5 +1,5 @@
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:15:5
+  --> $DIR/consts.rs:13:5
    |
 LL | const Z: () = {
    |       - help: use a const-anon item to suppress this lint: `_`
@@ -14,7 +14,7 @@ LL |     impl Uto for &Test {}
    = note: `#[warn(non_local_definitions)]` on by default
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:26:5
+  --> $DIR/consts.rs:24:5
    |
 LL |     impl Uto2 for Test {}
    |     ^^^^^^^^^^^^^^^^^^^^^
@@ -25,7 +25,7 @@ LL |     impl Uto2 for Test {}
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:34:5
+  --> $DIR/consts.rs:32:5
    |
 LL |     impl Uto3 for Test {}
    |     ^^^^^^^^^^^^^^^^^^^^^
@@ -36,7 +36,7 @@ LL |     impl Uto3 for Test {}
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:45:5
+  --> $DIR/consts.rs:43:5
    |
 LL | /     impl Test {
 LL | |
@@ -50,7 +50,7 @@ LL | |     }
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:52:9
+  --> $DIR/consts.rs:50:9
    |
 LL | /         impl Test {
 LL | |
@@ -64,7 +64,7 @@ LL | |         }
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:61:9
+  --> $DIR/consts.rs:59:9
    |
 LL | /         impl Test {
 LL | |
@@ -78,7 +78,7 @@ LL | |         }
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:74:9
+  --> $DIR/consts.rs:72:9
    |
 LL |         impl Uto9 for Test {}
    |         ^^^^^^^^^^^^^^^^^^^^^
@@ -89,7 +89,7 @@ LL |         impl Uto9 for Test {}
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/consts.rs:81:9
+  --> $DIR/consts.rs:79:9
    |
 LL |         impl Uto10 for Test {}
    |         ^^^^^^^^^^^^^^^^^^^^^^

tests/ui/lint/non-local-defs/from-local-for-global.rs

@@ -1,8 +1,6 @@
 //@ check-pass
 //@ edition:2021
 
-#![feature(inline_const)]
-
 struct Cat;
 struct Wrap<T>(T);
 

tests/ui/lint/non-local-defs/from-local-for-global.stderr

@@ -1,5 +1,5 @@
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/from-local-for-global.rs:10:5
+  --> $DIR/from-local-for-global.rs:8:5
    |
 LL | /     impl From<Cat> for () {
 LL | |
@@ -16,7 +16,7 @@ LL | |     }
    = note: `#[warn(non_local_definitions)]` on by default
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/from-local-for-global.rs:20:5
+  --> $DIR/from-local-for-global.rs:18:5
    |
 LL | /     impl From<Wrap<Wrap<Elephant>>> for () {
 LL | |
@@ -32,7 +32,7 @@ LL | |     }
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/from-local-for-global.rs:34:5
+  --> $DIR/from-local-for-global.rs:32:5
    |
 LL |     impl StillNonLocal for &Foo {}
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -43,7 +43,7 @@ LL |     impl StillNonLocal for &Foo {}
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/from-local-for-global.rs:42:5
+  --> $DIR/from-local-for-global.rs:40:5
    |
 LL | /     impl From<Local1> for GlobalSameFunction {
 LL | |
@@ -59,7 +59,7 @@ LL | |     }
    = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
 
 warning: non-local `impl` definition, they should be avoided as they go against expectation
-  --> $DIR/from-local-for-global.rs:50:5
+  --> $DIR/from-local-for-global.rs:48:5
    |
 LL | /     impl From<Local2> for GlobalSameFunction {
 LL | |

tests/ui/loops/dont-suggest-break-thru-item.rs

@@ -1,7 +1,5 @@
 //@ edition:2021
 
-#![feature(inline_const)]
-
 fn closure() {
     loop {
         let closure = || {

tests/ui/loops/dont-suggest-break-thru-item.stderr

@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/dont-suggest-break-thru-item.rs:9:17
+  --> $DIR/dont-suggest-break-thru-item.rs:7:17
    |
 LL | /             if true {
 LL | |                 Err(1)
@@ -17,7 +17,7 @@ LL |                 return Err(1);
    |                 ++++++       +
 
 error[E0308]: mismatched types
-  --> $DIR/dont-suggest-break-thru-item.rs:23:17
+  --> $DIR/dont-suggest-break-thru-item.rs:21:17
    |
 LL | /             if true {
 LL | |                 Err(1)
@@ -35,7 +35,7 @@ LL |                 return Err(1);
    |                 ++++++       +
 
 error[E0308]: mismatched types
-  --> $DIR/dont-suggest-break-thru-item.rs:37:17
+  --> $DIR/dont-suggest-break-thru-item.rs:35:17
    |
 LL | /             if true {
 LL | |                 Err(1)
@@ -48,7 +48,7 @@ LL | |             }
                    found enum `Result<_, {integer}>`
 
 error[E0308]: mismatched types
-  --> $DIR/dont-suggest-break-thru-item.rs:49:17
+  --> $DIR/dont-suggest-break-thru-item.rs:47:17
    |
 LL | /             if true {
 LL | |                 Err(1)

tests/ui/parser/bad-let-else-statement.rs

@@ -1,4 +1,3 @@
-#![feature(inline_const)]
 #![feature(yeet_expr)]
 #![allow(incomplete_features)] // Necessary for now, while explicit_tail_calls is incomplete
 #![feature(explicit_tail_calls)]

tests/ui/parser/bad-let-else-statement.stderr

@@ -1,5 +1,5 @@
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:10:5
+  --> $DIR/bad-let-else-statement.rs:9:5
    |
 LL |     } else {
    |     ^
@@ -13,7 +13,7 @@ LL ~     }) else {
    |
 
 error: `for...else` loops are not supported
-  --> $DIR/bad-let-else-statement.rs:19:7
+  --> $DIR/bad-let-else-statement.rs:18:7
    |
 LL |       let foo = for i in 1..2 {
    |                 --- `else` is attached to this loop
@@ -28,7 +28,7 @@ LL | |     };
    = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:31:5
+  --> $DIR/bad-let-else-statement.rs:30:5
    |
 LL |     } else {
    |     ^
@@ -43,7 +43,7 @@ LL ~     }) else {
    |
 
 error: `loop...else` loops are not supported
-  --> $DIR/bad-let-else-statement.rs:40:7
+  --> $DIR/bad-let-else-statement.rs:39:7
    |
 LL |       let foo = loop {
    |                 ---- `else` is attached to this loop
@@ -58,7 +58,7 @@ LL | |     };
    = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:51:5
+  --> $DIR/bad-let-else-statement.rs:50:5
    |
 LL |     } else {
    |     ^
@@ -73,7 +73,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:62:5
+  --> $DIR/bad-let-else-statement.rs:61:5
    |
 LL |     } else {
    |     ^
@@ -87,7 +87,7 @@ LL ~     }) else {
    |
 
 error: `while...else` loops are not supported
-  --> $DIR/bad-let-else-statement.rs:71:7
+  --> $DIR/bad-let-else-statement.rs:70:7
    |
 LL |       let foo = while false {
    |                 ----- `else` is attached to this loop
@@ -102,7 +102,7 @@ LL | |     };
    = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:81:5
+  --> $DIR/bad-let-else-statement.rs:80:5
    |
 LL |     } else {
    |     ^
@@ -116,7 +116,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:91:5
+  --> $DIR/bad-let-else-statement.rs:90:5
    |
 LL |     } else {
    |     ^
@@ -130,7 +130,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:102:5
+  --> $DIR/bad-let-else-statement.rs:101:5
    |
 LL |     } else {
    |     ^
@@ -144,7 +144,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:112:5
+  --> $DIR/bad-let-else-statement.rs:111:5
    |
 LL |     } else {
    |     ^
@@ -158,7 +158,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:122:5
+  --> $DIR/bad-let-else-statement.rs:121:5
    |
 LL |     } else {
    |     ^
@@ -172,7 +172,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:132:5
+  --> $DIR/bad-let-else-statement.rs:131:5
    |
 LL |     } else {
    |     ^
@@ -186,7 +186,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:142:5
+  --> $DIR/bad-let-else-statement.rs:141:5
    |
 LL |     } else {
    |     ^
@@ -200,7 +200,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:152:5
+  --> $DIR/bad-let-else-statement.rs:151:5
    |
 LL |     } else {
    |     ^
@@ -214,7 +214,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:162:5
+  --> $DIR/bad-let-else-statement.rs:161:5
    |
 LL |     } else {
    |     ^
@@ -228,7 +228,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:172:5
+  --> $DIR/bad-let-else-statement.rs:171:5
    |
 LL |     } else {
    |     ^
@@ -242,7 +242,7 @@ LL ~     }) else {
    |
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:182:31
+  --> $DIR/bad-let-else-statement.rs:181:31
    |
 LL |     let bad = format_args! {""} else { return; };
    |                               ^
@@ -253,7 +253,7 @@ LL |     let bad = format_args! ("") else { return; };
    |                            ~  ~
 
 error: right curly brace `}` before `else` in a `let...else` statement not allowed
-  --> $DIR/bad-let-else-statement.rs:199:25
+  --> $DIR/bad-let-else-statement.rs:198:25
    |
 LL |             let x = a! {} else { return; };
    |                         ^
@@ -268,7 +268,7 @@ LL |             let x = a! () else { return; };
    |                        ~~
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:7:5
+  --> $DIR/bad-let-else-statement.rs:6:5
    |
 LL | /     let foo = {
 LL | |
@@ -281,7 +281,7 @@ LL | |     } else {
    = note: `#[warn(irrefutable_let_patterns)]` on by default
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:26:5
+  --> $DIR/bad-let-else-statement.rs:25:5
    |
 LL | /     let foo = if true {
 LL | |
@@ -295,7 +295,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:47:5
+  --> $DIR/bad-let-else-statement.rs:46:5
    |
 LL | /     let foo = match true {
 LL | |
@@ -308,7 +308,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:59:5
+  --> $DIR/bad-let-else-statement.rs:58:5
    |
 LL | /     let foo = X {
 LL | |
@@ -320,7 +320,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:78:5
+  --> $DIR/bad-let-else-statement.rs:77:5
    |
 LL | /     let foo = const {
 LL | |
@@ -332,7 +332,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:88:5
+  --> $DIR/bad-let-else-statement.rs:87:5
    |
 LL | /     let foo = &{
 LL | |
@@ -344,7 +344,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:99:5
+  --> $DIR/bad-let-else-statement.rs:98:5
    |
 LL | /     let foo = bar = {
 LL | |
@@ -356,7 +356,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 error[E0384]: cannot assign twice to immutable variable `bar`
-  --> $DIR/bad-let-else-statement.rs:99:15
+  --> $DIR/bad-let-else-statement.rs:98:15
    |
 LL |       let bar = 0;
    |           ---
@@ -371,7 +371,7 @@ LL | |     } else {
    | |_____^ cannot assign twice to immutable variable
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:109:5
+  --> $DIR/bad-let-else-statement.rs:108:5
    |
 LL | /     let foo = 1 + {
 LL | |
@@ -383,7 +383,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:119:5
+  --> $DIR/bad-let-else-statement.rs:118:5
    |
 LL | /     let foo = 1..{
 LL | |
@@ -395,7 +395,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:129:5
+  --> $DIR/bad-let-else-statement.rs:128:5
    |
 LL | /     let foo = return {
 LL | |
@@ -407,7 +407,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:139:5
+  --> $DIR/bad-let-else-statement.rs:138:5
    |
 LL | /     let foo = -{
 LL | |
@@ -419,7 +419,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:149:5
+  --> $DIR/bad-let-else-statement.rs:148:5
    |
 LL | /     let foo = do yeet {
 LL | |
@@ -431,7 +431,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:159:5
+  --> $DIR/bad-let-else-statement.rs:158:5
    |
 LL | /     let foo = become {
 LL | |
@@ -443,7 +443,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:169:5
+  --> $DIR/bad-let-else-statement.rs:168:5
    |
 LL | /     let foo = |x: i32| {
 LL | |
@@ -455,7 +455,7 @@ LL | |     } else {
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:179:5
+  --> $DIR/bad-let-else-statement.rs:178:5
    |
 LL |     let ok = format_args!("") else { return; };
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -464,7 +464,7 @@ LL |     let ok = format_args!("") else { return; };
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:182:5
+  --> $DIR/bad-let-else-statement.rs:181:5
    |
 LL |     let bad = format_args! {""} else { return; };
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -473,7 +473,7 @@ LL |     let bad = format_args! {""} else { return; };
    = help: consider removing the `else` clause
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:189:19
+  --> $DIR/bad-let-else-statement.rs:188:19
    |
 LL |           () => { {} }
    |  ___________________^
@@ -493,7 +493,7 @@ LL |       b!(1); b!(2);
    = note: this warning originates in the macro `b` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 warning: irrefutable `let...else` pattern
-  --> $DIR/bad-let-else-statement.rs:189:19
+  --> $DIR/bad-let-else-statement.rs:188:19
    |
 LL |           () => { {} }
    |  ___________________^

tests/ui/simd/const-err-trumps-simd-err.rs

@@ -5,7 +5,7 @@
 #![feature(generic_arg_infer)]
 #![feature(core_intrinsics)]
 #![feature(repr_simd)]
-#![feature(inline_const)]
+
 use std::intrinsics::simd::*;
 
 #[repr(simd)]

tests/ui/simd/intrinsic/generic-elements-pass.rs

@@ -2,7 +2,6 @@
 //@ ignore-emscripten FIXME(#45351) hits an LLVM assert
 
 #![feature(repr_simd, intrinsics)]
-#![feature(inline_const)]
 
 #[repr(simd)]
 #[derive(Copy, Clone, Debug, PartialEq)]