GHC Head broken when TNTC not used

[David Terei]

Hi all,

Sometime in the last month or so a change in GHC head broke the
compiler when 'TablesNextToCode' isn't used. E.g, build GHC with this
line in your build.mk:

GhcEnableTablesNextToCode = NO

When compiling ghc, the first stage will build but then anything
compiled with ghc-stage1 simply segfaults when run. I'll start trying
to figure out the patch that introduced this bug but feel free to help
out :).

Cheers,
David