#1: added type information #2: made an error message more informative
#1: added type information
#2: made an error message more informative

anddann/soot,mbenz89/soot,anddann/soot,plast-lab/soot,xph906/SootNew,cfallin/soot,cfallin/soot,xph906/SootNew,xph906/SootNew,mbenz89/soot,plast-lab/soot,mbenz89/soot,anddann/soot,mbenz89/soot,anddann/soot,cfallin/soot,cfallin/soot,xph906/SootNew,plast-lab/soot