`super_relate_consts` do not spurriously fail on assoc consts

1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/const-generics/generic_const_exprs/assoc_const_unification/dropck_unifies_assoc_consts.rs b/src/test/ui/const-generics/generic_const_exprs/assoc_const_unification/dropck_unifies_assoc_consts.rs
new file mode 100644
index 00000000000..274caa1e993
--- /dev/null
+++ b/src/test/ui/const-generics/generic_const_exprs/assoc_const_unification/dropck_unifies_assoc_consts.rs
@@ -0,0 +1,20 @@
+// check-pass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+trait Trait {
+    const ASSOC: usize;
+}
+
+struct Foo<T: Trait>(T)
+where
+    [(); T::ASSOC]:;
+
+impl<T: Trait> Drop for Foo<T>
+where
+    [(); T::ASSOC]:,
+{
+    fn drop(&mut self) {}
+}
+
+fn main() {}