examples: dm4f: make some progress for IFC
examples: dm4f: make some progress for IFC

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