+ var res = new Array[MMethodDef]
+ for mmodule in in_importation.greaters do
+ for mclassdef in mmodule.mclassdefs do
+ if mclassdef.name != "Sys" then continue
+ for mpropdef in mclassdef.mpropdefs do
+ if not mpropdef isa MMethodDef or not mpropdef.is_before_all then continue
+ res.add mpropdef
+ end
+ end