Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/ui/did_you_mean/recursion_limit.rs b/tests/ui/did_you_mean/recursion_limit.rs
new file mode 100644
index 000000000..38db12960
--- /dev/null
+++ b/tests/ui/did_you_mean/recursion_limit.rs
@@ -0,0 +1,35 @@
+// Test that the recursion limit can be changed and that the compiler
+// suggests a fix. In this case, we have deeply nested types that will
+// fail the `Send` check by overflow when the recursion limit is set
+// very low.
+
+#![allow(dead_code)]
+#![recursion_limit="10"]
+
+macro_rules! link {
+    ($id:ident, $t:ty) => {
+        enum $id { $id($t) }
+    }
+}
+
+link! { A, B }
+link! { B, C }
+link! { C, D }
+link! { D, E }
+link! { E, F }
+link! { F, G }
+link! { G, H }
+link! { H, I }
+link! { I, J }
+link! { J, K }
+link! { K, L }
+link! { L, M }
+link! { M, N }
+
+enum N { N(usize) }
+
+fn is_send<T:Send>() { }
+
+fn main() {
+    is_send::<A>(); //~ ERROR overflow evaluating the requirement
+}