wrong warning for exporting all constructors of a void type

{-# LANGUAGE EmptyDataDecls #-}

module WrongExportWarning (Empty(..)) where

data Empty

produces the incorrect warning:

WrongExportWarning.hs:3:27:
    Warning: The export item `Empty(..)'
             suggests that `Empty' has constructor or class methods
             but it has none; it is a type synonym or abstract type or class

If this was already fixed, I state in my defense that trac's search sucks.

Trac metadata

Trac field	Value
Version	6.6
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Unknown
Architecture	Unknown