TyTy: Fix missed nodiscard

gcc/rust/ChangeLog:

	* typecheck/rust-tyty.h: Fix nodiscard to warn unused.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

diff --git a/gcc/rust/typecheck/rust-tyty.h b/gcc/rust/typecheck/rust-tyty.h
index 212ebc9757044fb1579d6c76f58cc164b8096f44..2e188c2027c35da5523fdeba3fef7d46c0925e1a 100644 (file)
--- a/gcc/rust/typecheck/rust-tyty.h
+++ b/gcc/rust/typecheck/rust-tyty.h
@@ -177,7 +177,7 @@ public:
   virtual BaseType *clone () const = 0;
 
   // Check if TyTy::BaseType is of a specific type.
-  template <typename T>[[nodiscard]] bool is () const
+  template <typename T> WARN_UNUSED_RESULT bool is () const
   {
     static_assert (std::is_base_of<BaseType, T>::value,
                   "Can only safely cast to TyTy types.");