patch applied (ghc): Add assertion for arity match (checks Trac #2844)

[Simon Peyton Jones]

Mon Dec  8 09:32:41 PST 2008  simonpj at microsoft.com
  * Add assertion for arity match (checks Trac #2844)
  
  The exported arity of a function must match the arity for the
  STG function.  Trac #2844 was a pretty obscure manifestation of
  the failure of this invariant. This patch doesn't cure the bug;
  rather it adds an assertion to CoreToStg to check the invariant
  so we should get an earlier and less obscure warning if this
  fails in future.
  

    M ./compiler/stgSyn/CoreToStg.lhs -15 +39

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20081208173241-1287e-7c1cd09e73339d029e153f8c67a1e6c1ef53ab6d.gz