Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/test/ui/unwind-abis/feature-gate-system-unwind.rs b/src/test/ui/unwind-abis/feature-gate-system-unwind.rs
new file mode 100644
index 000000000..26c2de4e8
--- /dev/null
+++ b/src/test/ui/unwind-abis/feature-gate-system-unwind.rs
@@ -0,0 +1,9 @@
+// Test that the "system-unwind" ABI is feature-gated, and cannot be used when
+// the `c_unwind` feature gate is not used.
+
+extern "system-unwind" fn f() {}
+//~^ ERROR system-unwind ABI is experimental and subject to change [E0658]
+
+fn main() {
+    f();
+}