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This adds support for adding Haddocks on individual non-record fields of regular (and GADT) constructors. The following now parses just fine with `-haddock` enabled: data Foo = Baz -- ^ doc on the `Baz` constructor Int -- ^ doc on the `Int` field of `Baz` String -- ^ doc on the `String` field of `Baz` | Int -- ^ doc on the `Int` field of the `:*` constructor :* -- ^ doc on the `:*` constructor String -- ^ doc on the `String` field of the `:*` constructor | Boa -- ^ doc on the `Boa` record constructor { y :: () } The change is backwards compatible: if there is only one doc and it occurs on the last field, it is lifted to apply to the whole constructor (as before). Reviewers: bgamari, alanz Subscribers: rwbarton, thomie, mpickering, carter Differential Revision: https://phabricator.haskell.org/D4292
e20046a0