Auto merge of #103797 - Dylan-DPC:rollup-ps589fi, r=Dylan-DPC

Rollup of 5 pull requests

Successful merges:

 - #103338 (Fix unreachable_pub suggestion for enum with fields)
 - #103603 (Lang item cleanups)
 - #103732 (Revert "Make the `c` feature for `compiler-builtins` opt-in instead of inferred")
 - #103766 (Add tracking issue to `error_in_core`)
 - #103789 (Update E0382.md)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

3 files changed, 2 insertions, 6 deletions

diff --git a/compiler/rustc_middle/src/middle/lang_items.rs b/compiler/rustc_middle/src/middle/lang_items.rs
index 31c20fa14aa..dd4332d0db6 100644
--- a/compiler/rustc_middle/src/middle/lang_items.rs
+++ b/compiler/rustc_middle/src/middle/lang_items.rs
@@ -36,10 +36,6 @@ impl<'tcx> TyCtxt<'tcx> {
             _ => None,
         }
     }
-
-    pub fn is_weak_lang_item(self, item_def_id: DefId) -> bool {
-        self.lang_items().is_weak_lang_item(item_def_id)
-    }
 }
 
 /// Returns `true` if the specified `lang_item` must be present for this
diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
index 3d720f09b4f..a098e570305 100644
--- a/compiler/rustc_middle/src/query/mod.rs
+++ b/compiler/rustc_middle/src/query/mod.rs
@@ -1705,7 +1705,7 @@ rustc_queries! {
     }
 
     /// Returns the lang items defined in another crate by loading it from metadata.
-    query defined_lang_items(_: CrateNum) -> &'tcx [(DefId, usize)] {
+    query defined_lang_items(_: CrateNum) -> &'tcx [(DefId, LangItem)] {
         desc { "calculating the lang items defined in a crate" }
         separate_provide_extern
     }
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
index 3d7e2a0839a..8e24f4813a7 100644
--- a/compiler/rustc_middle/src/ty/context.rs
+++ b/compiler/rustc_middle/src/ty/context.rs
@@ -2456,7 +2456,7 @@ impl<'tcx> TyCtxt<'tcx> {
 
     #[inline]
     pub fn mk_lang_item(self, ty: Ty<'tcx>, item: LangItem) -> Option<Ty<'tcx>> {
-        let def_id = self.lang_items().require(item).ok()?;
+        let def_id = self.lang_items().get(item)?;
         Some(self.mk_generic_adt(def_id, ty))
     }