• simonpj's avatar
    [project @ 2001-04-05 11:31:26 by simonpj] · 11197236
    simonpj authored
    --------------------------------
    	Better grouping for ty/cls decls
    	--------------------------------
    
    When finding mutually-recursive groups of type and class decls,
    we shouldn't include classes mentioned in a deriving clause as
    edges. E.g.
    
    	class Eq a where ...
    
    	data Bool = True | False deriving( Eq )
    
    Eq and Bool are not mutually recursive.
    
    The edges are computed by RnHsSyn.tyClDeclFVs, so we remove the
    derivings from there.
    
    There a consequential fix in RnSource.rnSourceDecl
    11197236