Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/incremental/cyclic-trait-hierarchy.rs b/tests/incremental/cyclic-trait-hierarchy.rs
new file mode 100644
index 000000000..b502e7207
--- /dev/null
+++ b/tests/incremental/cyclic-trait-hierarchy.rs
@@ -0,0 +1,13 @@
+// Adapted from rust-lang/rust#58813
+
+// revisions: rpass1 cfail2
+
+#[cfg(rpass1)]
+pub trait T2 {}
+#[cfg(cfail2)]
+pub trait T2: T1 {}
+//[cfail2]~^ ERROR cycle detected when computing the super predicates of `T2`
+
+pub trait T1: T2 {}
+
+fn main() {}