Lower back the max heap size for genRegularTestsXX to 2G.
Lower back the max heap size for genRegularTestsXX to 2G.

janekdb/scalatest,rfries/scalatest,rfries/scalatest,matterche/scalatest,rahulkavale/scalatest,SRGOM/scalatest,rahulkavale/scalatest,rfries/scalatest,flicken/scalatest,gcberger/scalatest,gcberger/scalatest,janekdb/scalatest,matterche/scalatest,rahulkavale/scalatest,flicken/scalatest,flicken/scalatest,triggerNZ/scalatest,SRGOM/scalatest,janekdb/scalatest,gcberger/scalatest,matterche/scalatest,rahulkavale/scalatest,gcberger/scalatest,flicken/scalatest,triggerNZ/scalatest,SRGOM/scalatest,triggerNZ/scalatest,SRGOM/scalatest,rfries/scalatest,janekdb/scalatest,triggerNZ/scalatest,matterche/scalatest