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-rw-r--r--tests/ui/impl-trait/nested-return-type2.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/nested-return-type2.rs b/tests/ui/impl-trait/nested-return-type2.rs
index cc1f1f4ec..fe883ce6f 100644
--- a/tests/ui/impl-trait/nested-return-type2.rs
+++ b/tests/ui/impl-trait/nested-return-type2.rs
@@ -1,4 +1,7 @@
// check-pass
+// compile-flags: -Zvalidate-mir
+
+// Using -Zvalidate-mir as a regression test for #107346.
trait Duh {}