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, 32 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-67552.rs b/src/test/ui/issues/issue-67552.rs
new file mode 100644
index 000000000..ec1997ccd
--- /dev/null
+++ b/src/test/ui/issues/issue-67552.rs
@@ -0,0 +1,32 @@
+// build-fail
+// compile-flags: -Copt-level=0
+// normalize-stderr-test: ".nll/" -> "/"
+
+fn main() {
+    rec(Empty);
+}
+
+struct Empty;
+
+impl Iterator for Empty {
+    type Item = ();
+    fn next<'a>(&'a mut self) -> core::option::Option<()> {
+        None
+    }
+}
+
+fn identity<T>(x: T) -> T {
+    x
+}
+
+fn rec<T>(mut it: T)
+where
+    T: Iterator,
+{
+    if () == () {
+        T::count(it);
+    } else {
+        rec(identity(&mut it))
+        //~^ ERROR reached the recursion limit while instantiating
+    }
+}