[gcc r15-8740] gccrs: lang-items: Collect enum variants as lang items

[Arthur Cohen]

https://gcc.gnu.org/g:bff688808d263270ece98848ae1f4184775b041c

commit r15-8740-gbff688808d263270ece98848ae1f4184775b041c
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Mon Dec 23 10:27:13 2024 +0000

    gccrs: lang-items: Collect enum variants as lang items
    
    gcc/rust/ChangeLog:
    
            * ast/rust-collect-lang-items.h: Declare visitor.
            * ast/rust-collect-lang-items.cc (CollectLangItems::visit): New.

Diff:
---
 gcc/rust/ast/rust-collect-lang-items.cc | 9 +++++++++
 gcc/rust/ast/rust-collect-lang-items.h  | 1 +
 2 files changed, 10 insertions(+)

diff --git a/gcc/rust/ast/rust-collect-lang-items.cc b/gcc/rust/ast/rust-collect-lang-items.cc
index 11c3297d2a9d..cd6be7fbeb9c 100644
--- a/gcc/rust/ast/rust-collect-lang-items.cc
+++ b/gcc/rust/ast/rust-collect-lang-items.cc
@@ -19,6 +19,7 @@
 #include "rust-collect-lang-items.h"
 #include "optional.h"
 #include "rust-ast-collector.h"
+#include "rust-ast-visitor.h"
 #include "rust-ast.h"
 #include "rust-attribute-values.h"
 #include "rust-attributes.h"
@@ -100,5 +101,13 @@ CollectLangItems::visit (AST::StructStruct &item)
   DefaultASTVisitor::visit (item);
 }
 
+void
+CollectLangItems::visit (AST::EnumItem &item)
+{
+  maybe_add_lang_item (item);
+
+  DefaultASTVisitor::visit (item);
+}
+
 } // namespace AST
 } // namespace Rust
diff --git a/gcc/rust/ast/rust-collect-lang-items.h b/gcc/rust/ast/rust-collect-lang-items.h
index 39cb4be31a0c..ddb34a914ed7 100644
--- a/gcc/rust/ast/rust-collect-lang-items.h
+++ b/gcc/rust/ast/rust-collect-lang-items.h
@@ -49,6 +49,7 @@ public:
   void visit (AST::TraitItemType &item) override;
   void visit (AST::Function &item) override;
   void visit (AST::StructStruct &item) override;
+  void visit (AST::EnumItem &item) override;
 
 private:
   template <typename T> void maybe_add_lang_item (const T &item);