ExprUtil

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	10 of 45	77%	1 of 8	87%	2	6	2	12	1	2
recursiveRewrite(Expr, Map)		83%		87%	1	5	1	11	0	1
ExprUtil()		0%		n/a	1	1	1	1	1	1