haskell/cabal — pull request #1072 by hvr (2012-10-18 14:50:59+00:00)
Title: Replace fragile GHC manual section references by urls

This replaces the GHC/Hugs manual references in the Haddock comments
for the `Language.Haskell.Extension.Extension` enum constructors, as
in

```haskell
-- | [GHC § 7.6.3.4] Allow overlapping class instances,
-- provided there is a unique most specific instance for each use.
OverlappingInstances
```

which urls pointing directly to the section containing further
documentation (assuming the urls are more immune to section
reorderings), e.g.:

```haskell
-- | Allow overlapping class instances, provided there is a unique
-- most specific instance for each use.
--
-- *
OverlappingInstances
```