patch applied (testsuite): #1318: pre-emptively add test for Haskell98 treatment of operator " -"

[Isaac Dupree]

Sat May 26 07:38:14 PDT 2007  Isaac Dupree <id at isaac.cedarswampstudios.org>
  * #1318: pre-emptively add test for Haskell98 treatment of operator "-"

    M ./tests/ghc-regress/parser/should_run/all.T +4
    A ./tests/ghc-regress/parser/should_run/read001.hs
    A ./tests/ghc-regress/parser/should_run/read001.stdout