Rollup merge of #136434 - RalfJung:rustc_allowed_through_unstable_modules-deprecation-required, r=compiler-errors

rustc_allowed_through_unstable_modules: require deprecation message

This changes the `#[rustc_allowed_through_unstable_modules]` attribute so that a deprecation message (ideally directing people towards the stable path) is required.

1 files changed, 2 insertions, 10 deletions

diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs
index 6e817af0d6e..a44d74e6df6 100644
--- a/src/librustdoc/clean/types.rs
+++ b/src/librustdoc/clean/types.rs
@@ -5,9 +5,7 @@ use std::{fmt, iter};
 
 use arrayvec::ArrayVec;
 use rustc_abi::{ExternAbi, VariantIdx};
-use rustc_attr_parsing::{
-    AllowedThroughUnstableModules, ConstStability, Deprecation, Stability, StableSince,
-};
+use rustc_attr_parsing::{ConstStability, Deprecation, Stability, StableSince};
 use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet};
 use rustc_hir::def::{CtorKind, DefKind, Res};
 use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE, LocalDefId};
@@ -411,15 +409,9 @@ impl Item {
                 ..
             } = stab.level
             {
-                let note = match note {
-                    AllowedThroughUnstableModules::WithDeprecation(note) => Some(note),
-                    // FIXME: Would be better to say *something* here about the *path* being
-                    // deprecated rather than the item.
-                    AllowedThroughUnstableModules::WithoutDeprecation => None,
-                };
                 Some(Deprecation {
                     since: rustc_attr_parsing::DeprecatedSince::Unspecified,
-                    note,
+                    note: Some(note),
                     suggestion: None,
                 })
             } else {