CompareCompare plugin: receive another value as inherited attribute and compare.
For type declaration type ('a,'b,...) typ = ... it will create a transformation function with type
('a -> 'a -> GT.comparison) -> ('b -> 'b -> GT.comparison) -> ... -> ('a,'b,...) typ -> GT.comparison
Inherited attribute' is the same as argument, synthetized attribute is GT.comparison.
module Make (AstHelpers : GTCommon.GTHELPERS_sig.S) : sig ... end