We now have a top-level `tyConAppNeedsKindSig` function, which means
that we can delete lots of code in `Convert`.
(cherry picked from commit cfd682c5)
5 merge requests!38Make --no-tmp-comp-dir the default,!37Adapt to latest xhtml version, various optimizations,!31Support HsToken in DataDecl and ClassDecl,!12Drop orphan instance when defined upstream.,!10Haddock interfaces produced from `.hi` files