assignment to null parts of trees cworking :) :) :)
fixed binop addition of integers in output; needed to dereference pointer b/c using child access and at
pulled all decls up to the top; for loops working again
added test 27
added test for char arithmetic
added test for tree literal to child assignment
working on destory tree to clean up memory errors and leaks
merged
degree function with test added
Merge pull request #34 from dmb2168/chris_kira_semantic_analysis

Degree Function Added with Tests