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, 20 insertions, 0 deletions

diff --git a/src/test/ui/uninhabited/privately-uninhabited-dead-code.rs b/src/test/ui/uninhabited/privately-uninhabited-dead-code.rs
new file mode 100644
index 000000000..f476704cd
--- /dev/null
+++ b/src/test/ui/uninhabited/privately-uninhabited-dead-code.rs
@@ -0,0 +1,20 @@
+// build-pass (FIXME(62277): could be check-pass?)
+
+#![deny(unused_variables)]
+
+mod foo {
+    enum Bar {}
+
+    #[allow(dead_code)]
+    pub struct Foo {
+        value: Bar, // "privately" uninhabited
+    }
+
+    pub fn give_foo() -> Foo { panic!() }
+}
+
+fn main() {
+    let a = 42;
+    foo::give_foo();
+    println!("Hello, {}", a); // ok: we can't tell that this code is dead
+}