From 6933848fbff3da5bfcd78ab836cda15e3f649ffc Mon Sep 17 00:00:00 2001
From: Urgau <urgau@numericable.fr>
Date: Mon, 14 Aug 2023 11:47:42 +0200
Subject: [PATCH] Add diagnostic items for `<*const _>::cast` and `<*mut
 _>::cast_const`

---
 compiler/rustc_span/src/symbol.rs | 2 ++
 library/core/src/ptr/const_ptr.rs | 1 +
 library/core/src/ptr/mut_ptr.rs   | 1 +
 3 files changed, 4 insertions(+)

diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 745a3590720..f66b1e8970b 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -543,6 +543,7 @@ symbols! {
         const_panic_fmt,
         const_param_ty,
         const_precise_live_drops,
+        const_ptr_cast,
         const_raw_ptr_deref,
         const_raw_ptr_to_usize_cast,
         const_refs_to_cell,
@@ -1159,6 +1160,7 @@ symbols! {
         profiler_runtime,
         ptr,
         ptr_cast,
+        ptr_cast_const,
         ptr_cast_mut,
         ptr_const_is_null,
         ptr_from_mut,
diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs
index 502f8a75863..ee69d89a4b7 100644
--- a/library/core/src/ptr/const_ptr.rs
+++ b/library/core/src/ptr/const_ptr.rs
@@ -55,6 +55,7 @@ impl<T: ?Sized> *const T {
     /// Casts to a pointer of another type.
     #[stable(feature = "ptr_cast", since = "1.38.0")]
     #[rustc_const_stable(feature = "const_ptr_cast", since = "1.38.0")]
+    #[rustc_diagnostic_item = "const_ptr_cast"]
     #[inline(always)]
     pub const fn cast<U>(self) -> *const U {
         self as _
diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs
index d129e1d645f..9dbb3f9d322 100644
--- a/library/core/src/ptr/mut_ptr.rs
+++ b/library/core/src/ptr/mut_ptr.rs
@@ -112,6 +112,7 @@ impl<T: ?Sized> *mut T {
     /// [`cast_mut`]: #method.cast_mut
     #[stable(feature = "ptr_const_cast", since = "1.65.0")]
     #[rustc_const_stable(feature = "ptr_const_cast", since = "1.65.0")]
+    #[rustc_diagnostic_item = "ptr_cast_const"]
     #[inline(always)]
     pub const fn cast_const(self) -> *const T {
         self as _