patch applied (packages/Cabal): Change the PackageIndex invariant so the buckets are ordered

[Ian Lynagh]

Thu May 29 02:53:46 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Change the PackageIndex invariant so the buckets are ordered
  Each bucket holds packages with the same name case-insensitively.
  Previously each buckets was internally unordered. Now they're
  ordered by the full package id which means first by package name
  case-sensitively and then by version.

    M ./Distribution/Simple/PackageIndex.hs -27 +41

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080529095346-adfee-a3cf6fd7eac2b581a4dcb288b7e94d728c213cde.gz