test driver for insertLineNode and printTree
removed file references for driver
readded print
inst idTree
fixes to insertIdentifier
fixes

fixes for previous commit
more fixes for previous commit
changes to test
test changes
test value
minor fixes again
fix to stop an infinite loop
actual fix to stop infinite loop
changes to test program
more test program changes
test program changes
test statement added
added test
changes to test program
test program