Rollup merge of #57564 - varkor:update-const_fn-tracking-issue, r=Centril

Update the const fn tracking issue to the new metabug The new `const fn` tracking issue is #57563. We don't want to point to a closed issue in the diagnostics (or FIXMEs), so these have been updated (from the old issue, #24111). r? @Centril

Author: Centril

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

@@ -1,8 +1,8 @@
 # `const_fn`
 
-The tracking issue for this feature is: [#24111]
+The tracking issue for this feature is: [#57563]
 
-[#24111]: https://github.com/rust-lang/rust/issues/24111
+[#57563]: https://github.com/rust-lang/rust/issues/57563
 
 ------------------------
 

src/librustc_mir/diagnostics.rs

@@ -573,7 +573,7 @@ const Y: i32 = A;
 ```
 "##,
 
-// FIXME(#24111) Change the language here when const fn stabilizes
+// FIXME(#57563) Change the language here when const fn stabilizes
 E0015: r##"
 The only functions that can be called in static or constant expressions are
 `const` functions, and struct/enum constructors. `const` functions are only

src/librustc_mir/transform/qualify_consts.rs

@@ -901,7 +901,7 @@ impl<'a, 'tcx> Visitor<'tcx> for Qualifier<'a, 'tcx, 'tcx> {
  err.emit();
  }
  } else {
- // FIXME(#24111): remove this check when const fn stabilizes.
+ // FIXME(#57563): remove this check when const fn stabilizes.
  let (msg, note) = if let UnstableFeatures::Disallow =
  self.tcx.sess.opts.unstable_features {
  (format!("calls in {}s are limited to \

src/libsyntax/feature_gate.rs

@@ -191,7 +191,7 @@ declare_features! (
  (active, slice_patterns, "1.0.0", Some(23121), None),
 
  // Allows the definition of `const` functions with some advanced features.
- (active, const_fn, "1.2.0", Some(24111), None),
+ (active, const_fn, "1.2.0", Some(57563), None),
 
  // Allows accessing fields of unions inside `const` functions.
  (active, const_fn_union, "1.27.0", Some(51909), None),

src/test/ui/feature-gates/feature-gate-const_fn.stderr

@@ -16,15 +16,15 @@ error[E0379]: trait fns cannot be declared const
 LL | const fn foo() -> u32 { 0 } //~ ERROR trait fns cannot be declared const
  | ^^^^^ trait fns cannot be const
 
-error[E0658]: const fn is unstable (see issue #24111)
+error[E0658]: const fn is unstable (see issue #57563)
  --> $DIR/feature-gate-const_fn.rs:6:5
  |
 LL | const fn foo() -> u32; //~ ERROR const fn is unstable
  | ^^^^^^^^^^^^^^^^^^^^^^
  |
  = help: add #![feature(const_fn)] to the crate attributes to enable
 
-error[E0658]: const fn is unstable (see issue #24111)
+error[E0658]: const fn is unstable (see issue #57563)
  --> $DIR/feature-gate-const_fn.rs:8:5
  |
 LL | const fn bar() -> u32 { 0 } //~ ERROR const fn is unstable

src/test/ui/feature-gates/feature-gate-min_const_fn.stderr

@@ -16,15 +16,15 @@ error[E0379]: trait fns cannot be declared const
 LL | const fn foo() -> u32 { 0 } //~ ERROR trait fns cannot be declared const
  | ^^^^^ trait fns cannot be const
 
-error[E0658]: const fn is unstable (see issue #24111)
+error[E0658]: const fn is unstable (see issue #57563)
  --> $DIR/feature-gate-min_const_fn.rs:6:5
  |
 LL | const fn foo() -> u32; //~ ERROR const fn is unstable
  | ^^^^^^^^^^^^^^^^^^^^^^
  |
  = help: add #![feature(const_fn)] to the crate attributes to enable
 
-error[E0658]: const fn is unstable (see issue #24111)
+error[E0658]: const fn is unstable (see issue #57563)
  --> $DIR/feature-gate-min_const_fn.rs:8:5
  |
 LL | const fn bar() -> u32 { 0 } //~ ERROR const fn is unstable

src/tools/tidy/src/features.rs

@@ -336,12 +336,11 @@ fn map_lib_features(base_src_path: &Path,
  level: Status::Unstable,
  since: "None".to_owned(),
  has_gate_test: false,
- // Whether there is a common tracking issue
- // for these feature gates remains an open question
- // https://github.com/rust-lang/rust/issues/24111#issuecomment-340283184
- // But we take 24111 otherwise they will be shown as
- // "internal to the compiler" which they are not.
- tracking_issue: Some(24111),
+ // FIXME(#57563): #57563 is now used as a common tracking issue,
+ // although we would like to have specific tracking
+ // issues for each `rustc_const_unstable` in the
+ // future.
+ tracking_issue: Some(57563),
  };
  mf(Ok((feature_name, feature)), file, i + 1);
  continue;