RecordWildCards panic

GHC 7.4.1 (Debian 7.7 and Ubuntu 12.04.5 LTS) panics with:

ghc: panic! (the 'impossible' happened)
  (GHC version 7.4.1 for i386-unknown-linux):
	compiler/rename/RnPat.lhs:535:39-79: Irrefutable pattern failed for pattern gres@(gre : _)

I found a minimal test case to exemplify this issue:

module Foo where

import Bar (Bar (Bar))

foo :: Bar -> ()
foo Bar {..} = ()

module Bar where

data Bar = Bar { barA :: Int, barB :: Int }

A workaround is to import all data fields in module Foo:

import Bar (Bar (..))

I also tried this with GHC 7.6.3 (Mac OS X), with no warnings nor errors.

Trac metadata

Trac field	Value
Version	7.4.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture