Hide minimal definition for only-method classes

Previously this was not covered by the All xs check since here it is not
actually an All, rather a single Var n.

This also adds the previously missing html-test/src/Minimal.hs.
Fix issue #281

This is a regression from the data family instances change. Data
instances are now distinguished from regular lists by usage of the new
class "inst", and the style has been updated to only apply to those.

I've also updated the appropriate test case to test this a bit better,
including GADT instances with GADT-style records.
Please cabal sdist
Drop needless --split-objs which slows us down.

Involves tiny cleanup of all the dynflag bindings. Fixes #292.
Fix a few typos

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Print kind signatures on GADTs
Add default for new PlatformConstraints field
Drop leading whitespace in @-style blocks.

Fixes #201.
Crash when exporting record selectors of data family instances

This fixes bug #294.

This also fixes a related but never-before-mentioned bug about the
display of GADT record selectors with non-polymorphic type signatures.

Note: Associated data type constructors fail to show up if nothing is
exported that they could be attached to. Exporting any of the data types
in the instance head, or the class + data family itself, causes them to
show up, but in the absence of either of these, exporting just the
associated data type with the constructor itself will result in it
being hidden.

The only scenario I can come up that would involve this kind of
situation involved OverlappingInstances, and even then it can be
mitigated by just exporting the class itself, so I'm not going to solve
it since the logic would most likely be very complicated.
Update test cases for GHC bug #8945

The order of signature groups has been corrected upstream.