[ ghc-Bugs-1370875 ] panic! impossible happened: ds_app_type

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Bugs item #1370875, was opened at 2005-12-01 13:37
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Category: Compiler
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Jose Emilio Labra Gayo (labra)
Assigned to: Nobody/Anonymous (nobody)
Summary: panic! impossible happened: ds_app_type

Initial Comment:
When I try to compile:

class G a where
 f  :: G a

I obtain: 

ghc.exe: panic! (the `impossible' happened, GHC version
6.4): ds_app_type Prueba.G{tc r1Yg} [a{tv a1Yq}]



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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1370875&group_id=8032