1 files changed, 9 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-16250.rs b/tests/ui/issues/issue-16250.rs
new file mode 100644
index 000000000..436e2a6ce
--- /dev/null
+++ b/tests/ui/issues/issue-16250.rs
@@ -0,0 +1,9 @@
+#![deny(warnings)]
+
+pub struct Foo;
+
+extern "C" {
+    pub fn foo(x: (Foo)); //~ ERROR `extern` block uses type `Foo`
+}
+
+fn main() {}