codeintel: limit oop to 2 GB of memory on Linux
* bumped to 2GB in order to avoid bk test failures

(integrated from komodo (trunk) change 84490 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14304 b87d16e7-d29f-4ee1-b5ec-817d645d335f