patch applied (testsuite): Update output and add -fallow-undecidable-instances where necesssary

[Simon Peyton Jones]

Thu Feb 23 05:36:29 PST 2006  simonpj at microsoft.com
  * Update output and add -fallow-undecidable-instances where necesssary

    M ./tests/ghc-regress/typecheck/should_fail/tcfail093.hs -1 +2
    M ./tests/ghc-regress/typecheck/should_fail/tcfail108.stderr -3 +2
    M ./tests/ghc-regress/typecheck/should_fail/tcfail138.hs -1 +2
    M ./tests/ghc-regress/typecheck/should_fail/tcfail138.stderr -2 +2
    M ./tests/ghc-regress/typecheck/should_fail/tcfail154.stderr -3 +1