Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-16151.rs b/tests/ui/issues/issue-16151.rs
new file mode 100644
index 000000000..48a14b2af
--- /dev/null
+++ b/tests/ui/issues/issue-16151.rs
@@ -0,0 +1,29 @@
+// run-pass
+
+use std::mem;
+
+static mut DROP_COUNT: usize = 0;
+
+struct Fragment;
+
+impl Drop for Fragment {
+    fn drop(&mut self) {
+        unsafe {
+            DROP_COUNT += 1;
+        }
+    }
+}
+
+fn main() {
+    {
+        let mut fragments = vec![Fragment, Fragment, Fragment];
+        let _new_fragments: Vec<Fragment> = mem::replace(&mut fragments, vec![])
+            .into_iter()
+            .skip_while(|_fragment| {
+                true
+            }).collect();
+    }
+    unsafe {
+        assert_eq!(DROP_COUNT, 3);
+    }
+}