HIVE-8188: ExprNodeGenericFuncEvaluator::_evaluate() loads class annotations in a tight loop (Gopal V via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1627633 13f79535-47bb-0310-9956-ffa450edef68