Log message:
Recursive revbump after changing the default Haskell compiler

Log message:
devel/hs-generic-arbitrary: import hs-generic-arbitrary-1.0.1

Generic implementations of methods of the Arbitrary class from the
QuickCheck library. The approach taken here can lead to diverging instances
for mutually recursive types but is safe for simply recursive ones and
guarantees flat distribution for constructors of sum-types.