From Philippe:

This patch introduces TClass::HasDefaultConstructor which return true if a default constructor is available through fNew OR through the interpreter.  This will avoid an erroneous message when the class dictionary has
not been generated by rootcint.


git-svn-id: http://root.cern.ch/svn/root/trunk@6783 27541ba8-7e3a-0410-8455-c3a389f83636