MergeTopNs

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	14 of 90	84%	4 of 6	33%	3	6	4	22	0	3
lambda$build$0(LogicalTopN)		82%		33%	3	4	4	18	0	1
build()		100%		n/a	0	1	0	3	0	1
MergeTopNs()		100%		n/a	0	1	0	1	0	1