don't match plain-module-begin in module, since its phase is potentially different
don't match plain-module-begin in module, since its phase is potentially different

svn: r11580

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket