patch applied (ghc): getMainDeclBinder should return Nothing for a binding with no variables

[Simon Marlow]

Tue Oct 10 08:30:23 PDT 2006  Simon Marlow <simonmar at microsoft.com>
  * getMainDeclBinder should return Nothing for a binding with no variables
  See test rn003
  

    M ./compiler/hsSyn/HsUtils.lhs -1 +4