id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
41	Refactor occurance checker to improve speed.	benl		Doing occurance checking in Type.Util.Substitute made test/Typing/Complexity/Complex1 3x slower. Probably recover from this by writing custom var detection boilerplate for types instead of relying on collectTClassVars	refactor	new	normal	0.1.4	Source Type Inferencer