[gcc/devel/rust/master] ast: Add Path::is_lang_item()

[Thomas Schwinge]

https://gcc.gnu.org/g:9f2c6de83509ae6ca1679a66b0b1be158386fc4e

commit 9f2c6de83509ae6ca1679a66b0b1be158386fc4e
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Wed Jan 22 16:52:26 2025 +0000

    ast: Add Path::is_lang_item()
    
    gcc/rust/ChangeLog:
    
            * ast/rust-path.h: New function.

Diff:
---
 gcc/rust/ast/rust-path.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/rust/ast/rust-path.h b/gcc/rust/ast/rust-path.h
index c5afc8f883d4..0ecd822e50ee 100644
--- a/gcc/rust/ast/rust-path.h
+++ b/gcc/rust/ast/rust-path.h
@@ -622,6 +622,8 @@ public:
 
   std::string as_string () const override;
 
+  bool is_lang_item () const { return kind == Kind::LangItem; }
+
   // TODO: this seems kinda dodgy
   std::vector<PathExprSegment> &get_segments ()
   {