inspired by tim's recent msg about def nil = Nil   [for a non-list Nil, btw]
inspired by tim's recent msg about
def nil = Nil   [for a non-list Nil, btw]


git-svn-id: 9ecf60ce9baff443e30a0472d3fd222fcb8117cf@2470 7b97033b-253e-4a5c-9b07-e25f9089a9fd

KestrelInstitute/Specware,KestrelInstitute/Specware,KestrelInstitute/Specware,KestrelInstitute/Specware,KestrelInstitute/Specware