Author: Marina Glancy
MDL-34346 fixed missing string and correct instantiating of repositories in tests
http://git.moodle.org/gw?p=moodle.git;a=commit;h=0f232ed6e8071f79756f266fc65bd86fbf399b68
http://github.com/moodle/moodle/commit/0f232ed6e8071f79756f266fc65bd86fbf399b68
+ 2.5 en [cachedef_repositories,core_cache]