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Location of shadowed binding is wrong in warning

If we have this module:

module Q where

z :: a
z = r
    where
        _a = 'a'
        _f r = r
        _b = 'b'
        r = undefined
        _c = 'c'

then the location of the shadowed r is wrong (it's the same as the location of the one doing the shadowing):

$ ghc -fforce-recomp -Wall -c q.hs
q.hs:8:11:
    Warning: This binding for `r' shadows the existing binding
               bound at q.hs:8:11
             In the definition of `_f'
  1. 8 is fine (it doesn't try to give the location).
Trac metadata
Trac field Value
Version 6.9
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system Unknown
Architecture Unknown
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