PIG-3793: Provide info on number of LogicalRelationalOperator(s) used in the script through LogicalPlanData (prkommireddi)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1574729 13f79535-47bb-0310-9956-ffa450edef68
PIG-3679: e2e StreamingPythonUDFs_10 fails in trunk - committing what was
omitted in last commit


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1574758 13f79535-47bb-0310-9956-ffa450edef68