[cvs-nhc98] patch applied (hat): Fix a small bug introduced when adding derived Read on named fields.

Thu Jun 15 09:41:05 PDT 2000 malcolm * Fix a small bug introduced when adding derived Read on named fields. A nullary constructor on a datatype was considered as having named fields, which of course did not match the derived Show instance. Added an extra test for a nullary constructor, so it is treated normally. M ./src/compiler98/DeriveRead.hs -1 +1