[move-only] Make sure to run the moveonly interpreter test also at -Onone so we can make sure it works even without opts.

Author: gottesmm

test/Interpreter/moveonly.swift

@@ -1,5 +1,5 @@
+// RUN: %target-run-simple-swift(-Xfrontend -sil-verify-all)
 // RUN: %target-run-simple-swift(-O -Xfrontend -sil-verify-all)
-// this test takes a long time, so run this once with optimizations on.
 
 // REQUIRES: executable_test