public class RsFullFeatNames
extends Object
Implements a globally shared weak-reference map between
types & features to the corresponding Full Feature name
Used to avoid creating new full feature names when compiling
result feature specs.
Indexable for features via a 2 step index: typeName and shortFeatName
NOTE: this static table ends up holding on to string representations of all types,
all features, and all valid full feature names; there's no "cleanup".