BZ-1039639 - GRE doesn't recognize MVEL inline lists when opening rule
(cherry picked from commit c9d4924dcf129512dadd22dcd6fe0046cbcded43)
[BZ-1039639] recognize mvel inline list when unmarshalling a drl
(cherry picked from commit 4f9e49d18201f803e806109234ebd34b8876061c)