no ghc/haskell icon for .hs files on Windows

Claus reported:

The icons directory doesn't exist, no ghc/haskell icon for .hs files

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ghc_haskell\DefaultIcon
    (Standard)    REG_SZ    C:\haskell\ghc\ghc-6.12.3\icons\hsicon.ico

Trac metadata

Trac field	Value
Version	6.12.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Build System
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