From Pere:
fix for issue http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=16303


git-svn-id: https://root.cern.ch/svn/root/trunk@49293 27541ba8-7e3a-0410-8455-c3a389f83636
Move the set of llvm::Module from the Transaction ctor to commitTransaction.


git-svn-id: https://root.cern.ch/svn/root/trunk@49295 27541ba8-7e3a-0410-8455-c3a389f83636