patch applied (ghc): Make the new ClassOp/DFun selection mechanism work for single-method classes

Fri Nov 13 06:13:50 EST 2009

Fri Nov 13 03:12:11 PST 2009  simonpj at microsoft.com
  * Make the new ClassOp/DFun selection mechanism work for single-method classes
  Ignore-this: c53042ab61bddb8b998e85f03d5e4ff4
  
  I'd forgotten the case of single-method classes! I've also improved
  the documentation. See
    Note [ClassOp/DFun selection]
    Note [Single-method classes]
  both in TcInstDcls

    M ./compiler/basicTypes/MkId.lhs -16 +25
    M ./compiler/typecheck/TcInstDcls.lhs -9 +72

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20091113111211-1287e-b739ae2a50f896466832daaf9404c4fb4741b7c8.gz