indexed types panic: wrongKindOfFamily main:ShouldCompile.Sd{tc r6A}

Lots of indexed types tests are hitting an unhandled case in wrongKindOfFamily, e.g.:

Simple1.hs:11:2:ghc-6.7.20070504: panic! (the 'impossible' happened)
  (GHC version 6.7.20070504 for x86_64-unknown-linux):
        wrongKindOfFamily main:ShouldCompile.Sd{tc r6A}

Affected tests:

   ATLoop(normal,optc)
   GMapAssoc(normal,optc)
   GMapTop(normal,optc)
   Over(normal)
   Records(normal,optc)
   Simple1(normal,optc)
   Simple10(normal)
   Simple11a(normal)
   Simple11b(normal)
   Simple11c(normal)
   Simple11d(normal)
   Simple1a(normal)
   Simple2(normal,optc)
   Simple3(normal,optc)
   Simple4(normal,optc)
   Simple5(normal,optc)
   Simple5a(normal)
   Simple5b(normal)
   Simple6(normal,optc)
   Simple7(normal)
   Simple9(normal)
   impexp(normal,optc)
   ind1(normal,optc)
   ind2(normal,optc)

Trac metadata

Trac field	Value
Version	6.7
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler (Type checker)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Unknown
Architecture	Unknown