OPENJPA-2534: A boolean is not converted correct when using the hint 'UseLiteralInSQL' - applied Rick's patch to 2.2.1.x.

git-svn-id: https://svn.apache.org/repos/asf/openjpa/branches/2.2.1.x@1636472 13f79535-47bb-0310-9956-ffa450edef68