Improved cache comparison system for writing new model tests
	(There was a transient error that could impact tokens that were using IdentityHashMap)
Issue#: CODE-1943


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk/pcgen@18963 ef53c05b-3124-4d59-ae7d-fe3273f42be7