use simple-form-path instead of normalize-path
use simple-form-path instead of normalize-path

in the code that decides what to put in DrRacket's pop up
menu that opens file dialogs for the subdirectories of
the place where the current file is saved

closes PR 14634

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