HIVE-5676 - Cleanup test cases as done during mavenization (Brock Noland reviewed by Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536755 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5602 : Micro optimize select operator (Ed Capriolo via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536761 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5604 : Fix validation of nested expressions. (Jitendra Nath Pandey via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1536787 13f79535-47bb-0310-9956-ffa450edef68