patch applied (ghc): Fix Trac #745: improve error recoevery for type signatures

[Simon Peyton Jones]

Wed Aug 27 08:33:22 PDT 2008  simonpj at microsoft.com
  * Fix Trac #745: improve error recoevery for type signatures
  
  It turns out that fixing Trac #745 is easy using mapAndRecoverM,
  and tidies up the code nicely in several places.  Hurrah.
  

    M ./compiler/typecheck/TcBinds.lhs -1 +1
    M ./compiler/typecheck/TcInstDcls.lhs -25 +21
    M ./compiler/typecheck/TcRnMonad.lhs -1 +1
    M ./compiler/typecheck/TcTyClsDecls.lhs -5 +3

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080827153322-1287e-e7de82846119d6f9e3d527b5cc550a6cd057a962.gz