New test cases for the new replicate operator

    - added new execution and optimizer tests for replicate operator
    - fixed optimizer test plans after reducing live variables for unnestmap operator

Change-Id: If1341cc712542b0023cebb17bd0d16ee345b359d
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/88
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan
index b78849b..c385869 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan
@@ -5,15 +5,14 @@
         -- STREAM_SELECT  |PARTITIONED|
           -- STREAM_PROJECT  |PARTITIONED|
             -- ASSIGN  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- BTREE_SEARCH  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- BTREE_SEARCH  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- ASSIGN  |PARTITIONED|
-                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|