fix problems with string tests
fix problems with string tests


git-svn-id: 0656536e8c0026c3f3b55a4b7ac9c405a1e0e1ba@45569 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot