[gcc r15-9453] gccrs: lang-items: Add ManuallyDrop

[Arthur Cohen via Gcc-cvs]

https://gcc.gnu.org/g:901d94e8b4eb9a273e9e75d5586cb5abde73a7a6

commit r15-9453-g901d94e8b4eb9a273e9e75d5586cb5abde73a7a6
Author: Arthur Cohen <arthur.co...@embecosm.com>
Date:   Tue Apr 8 17:04:09 2025 +0200

    gccrs: lang-items: Add ManuallyDrop<T>
    
    gcc/rust/ChangeLog:
    
            * util/rust-lang-item.h: Add new manually_drop lang item.
            * util/rust-lang-item.cc: Likewise.

Diff:
---
 gcc/rust/util/rust-lang-item.cc | 1 +
 gcc/rust/util/rust-lang-item.h  | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/gcc/rust/util/rust-lang-item.cc b/gcc/rust/util/rust-lang-item.cc
index a76cc7ff6519..9aff31b657c8 100644
--- a/gcc/rust/util/rust-lang-item.cc
+++ b/gcc/rust/util/rust-lang-item.cc
@@ -118,6 +118,7 @@ const BiMap<std::string, LangItem::Kind> 
Rust::LangItem::lang_items = {{
 
   {"discriminant_kind", Kind::DISCRIMINANT_KIND},
   {"discriminant_type", Kind::DISCRIMINANT_TYPE},
+  {"manually_drop", Kind::MANUALLY_DROP},
 }};
 
 tl::optional<LangItem::Kind>
diff --git a/gcc/rust/util/rust-lang-item.h b/gcc/rust/util/rust-lang-item.h
index 8f3af3615bb2..67a5d9c438f8 100644
--- a/gcc/rust/util/rust-lang-item.h
+++ b/gcc/rust/util/rust-lang-item.h
@@ -150,6 +150,8 @@ public:
 
     DISCRIMINANT_TYPE,
     DISCRIMINANT_KIND,
+
+    MANUALLY_DROP,
   };
 
   static const BiMap<std::string, Kind> lang_items;