Fix a test bug where we need to skip nested types tests for the old aggs
and joins.
Fix a product bug where *eos is not initialised by the MT scan node.
This causes incorrect results when the calling ExecNode does not
initialise the eos variable, e.g. the sort node and the old agg and join
nodes.
Testing:
Added a test that reproduces the incorrect results with the sort node
when run under ASAN
Tested the mt_dop tests locally with old aggs and joins to ensure they
pass.
Change-Id: I48c50c8aa0c23710eb099fba252bc3c0cb74b313
Reviewed-on: http://gerrit.cloudera.org:8080/5302
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: Impala Public Jenkins