Move 48070 test to ui

Author: sapphire-arches

src/test/run-pass/issue-48070.rs renamed to src/test/ui/nll/issue-48070.rs

@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// run-pass
 // revisions: lxl nll
 
 #![cfg_attr(nll, feature(nll))]