/usr/lib/haskell-packages/ghc/lib/glib-0.12.2/ghc-7.4.1/System/Glib/GList.chi is in libghc-glib-dev 0.12.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | C->Haskell Interface Version C->Haskell Compiler, version 0.13.5 (gtk2hs branch) "Bin IO", 13 Nov 2004
([((True,"GSList"),(False,Ptr,Nothing,"()")),((True,"GList"),(False,Ptr,Nothing,"()"))],[("GSList",Pointer {ptrTypeHO = Ptr, isNewtypeHO = False}),("GList",Pointer {ptrTypeHO = Ptr, isNewtypeHO = False})])
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