a reference by getting the name and resolving the name. This way the
cache is shared, this flipp side is of course that if someone calls
krb5_cc_destroy the cache is lost for everyone.
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@16267 ec53bebd-3082-4978-b11e-865c3cabbd6b