[COMMITTED 087/146] gccrs: lang-items: Collect trait functions that are lang items

[arthur . cohen]

From: Arthur Cohen <arthur.co...@embecosm.com>

gcc/rust/ChangeLog:

        * ast/rust-collect-lang-items.cc (CollectLangItems::visit): Add visitor 
for collecting
        functions that might be lang items.
        * ast/rust-collect-lang-items.h: Likewise.
---
 gcc/rust/ast/rust-collect-lang-items.cc | 8 ++++++++
 gcc/rust/ast/rust-collect-lang-items.h  | 1 +
 2 files changed, 9 insertions(+)

diff --git a/gcc/rust/ast/rust-collect-lang-items.cc 
b/gcc/rust/ast/rust-collect-lang-items.cc
index 308720ae69a..50d134a429f 100644
--- a/gcc/rust/ast/rust-collect-lang-items.cc
+++ b/gcc/rust/ast/rust-collect-lang-items.cc
@@ -82,5 +82,13 @@ CollectLangItems::visit (AST::TraitItemType &item)
   DefaultASTVisitor::visit (item);
 }
 
+void
+CollectLangItems::visit (AST::Function &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 552648f04ed..1d021b1d9c5 100644
--- a/gcc/rust/ast/rust-collect-lang-items.h
+++ b/gcc/rust/ast/rust-collect-lang-items.h
@@ -47,6 +47,7 @@ public:
 
   void visit (AST::Trait &item) override;
   void visit (AST::TraitItemType &item) override;
+  void visit (AST::Function &item) override;
 
 private:
   template <typename T> void maybe_add_lang_item (const T &item);
-- 
2.45.2