Fix `mismatching_type_param_order` false positive

Previously was giving false positive when an impl had a nontrivial
generic argument such as a tuple. Don't lint on these cases.

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/ui/mismatching_type_param_order.rs b/tests/ui/mismatching_type_param_order.rs
index 8f286c9304c..8c0da84d8e9 100644
--- a/tests/ui/mismatching_type_param_order.rs
+++ b/tests/ui/mismatching_type_param_order.rs
@@ -57,4 +57,8 @@ fn main() {
         B: Copy,
     {
     }
+
+    // if the types are complicated, do not lint
+    impl<K, V, B> Foo<(K, V), B> {}
+    impl<K, V, A> Foo<(K, V), A> {}
 }