Proper cleanup before `make test`
Proper cleanup before `make test`

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