add test for #57162

Fixes #57162.

Author: arielb1

src/test/ui/issues/issue-57162.rs

@@ -0,0 +1,7 @@
+// compile-pass
+
+trait Foo {}
+impl Foo for dyn Send {}
+
+impl<T: Sync + Sync> Foo for T {}
+fn main() {}