GHCi gives misleading error message when looking up info of ambiguous type

When GHCi imports multiple functions with the same name, using :i results in an ambiguous occurrence error:

> import Data.Text
> import Data.Text.Lazy
> :i length

Top level:
    Ambiguous occurrence ‘length’
    It could refer to either ‘Data.Text.Lazy.length’,
                             imported from ‘Data.Text.Lazy’
                          or ‘Prelude.length’,
                             imported from ‘Prelude’ (and originally defined in ‘GHC.List’)
                          or ‘Data.Text.length’, imported from ‘Data.Text’

However, if you use :i on a type name that has imported multiple times in GHCi, a misleading error is given:

> import Data.Text
> import Data.Text.Lazy
> :i Text

Top level: Not in scope: data constructor ‘Text’

The real problem is that the type name Text was imported twice with two different definitions, so the error should probably look something like this:

Top level:
    Ambiguous occurrence ‘Text’
    It could refer to either ‘Data.Text.Lazy.Text’,
                             imported from ‘Data.Text.Lazy’ (and originally defined in ‘Data.Text.Internal.Lazy’)
                          or ‘Data.Text.Text’,
                             imported from ‘Data.Text’ (and originally defined in ‘Data.Text.Internal‘)

Trac metadata

Trac field	Value
Version	7.8.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC	hvr
Operating system
Architecture