RefTest: suppress -Wself-move

This warning (introduced with GCC 13, also present in clang) warns
precisely about what we want to test here.

1 files changed, 3 insertions, 0 deletions

diff --git a/unittests/Ref/RefTest.cpp b/unittests/Ref/RefTest.cpp
index bf313513..2f17738f 100644
--- a/unittests/Ref/RefTest.cpp
+++ b/unittests/Ref/RefTest.cpp
@@ -95,8 +95,11 @@ TEST(RefTest, SelfMove) {
     struct Expr *r_e = new Expr();
     ref<Expr> r(r_e);
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wself-move"
     // Check self move
     r = std::move(r);
+#pragma GCC diagnostic pop
     finished = 1;
   }
   EXPECT_EQ(1, finished_counter);