patch applied (ghc-7.0/ghc): Fix Trac #4953: local let binders can have IdInfo with free names

[Ian Lynagh]

Mon Feb 14 06:03:34 PST 2011  simonpj at microsoft.com
  * Fix Trac #4953: local let binders can have IdInfo with free names
  
  Local let binders in IfaceExpr never used to have unfoldings,
  but lately they can (becuase they can have an INLINE pragma).
  We must take account of the variables mentioned in the pragma
  when computing the fingerprint.

    M ./compiler/iface/IfaceSyn.lhs -2 +4

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc-7.0/ghc;a=darcs_commitdiff;h=20110214140334-1287e-1066f332f83f766fe1984d4d8bdc0e57d30491d5.gz