A little cleanup for quicksort (the working variant)
A little cleanup for quicksort (the working variant)

hoheinzollern/FStar,YaccConstructor/FStar,aa755/FStar,MallabaevAzamat/FStar,A-Manning/FStar,msprotz/FStar,FStarLang/FStar,A-Manning/FStar,FStarLang/FStar,hoheinzollern/FStar,MallabaevAzamat/FStar,FStarLang/FStar,hoheinzollern/FStar,MallabaevAzamat/FStar,YaccConstructor/FStar,YaccConstructor/FStar,YaccConstructor/FStar,msprotz/FStar,msprotz/FStar,aa755/FStar,hoheinzollern/FStar,msprotz/FStar,A-Manning/FStar,aa755/FStar,aa755/FStar,MallabaevAzamat/FStar