1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/traits/issue-85735.rs b/src/test/ui/traits/issue-85735.rs
new file mode 100644
index 000000000..fb387a9c9
--- /dev/null
+++ b/src/test/ui/traits/issue-85735.rs
@@ -0,0 +1,13 @@
+// Regression test for the invalid suggestion in #85735 (the
+// underlying issue #21974 still exists here).
+
+trait Foo {}
+impl<'a, 'b, T> Foo for T
+where
+    T: FnMut(&'a ()),
+    //~^ ERROR: type annotations needed
+    T: FnMut(&'b ()),
+{
+}
+
+fn main() {}