else if node.labels.has("MVirtualTypeDef") then
mpropdef = new MVirtualTypeDef(mclassdef, mproperty.as(MVirtualTypeProp), location)
mentities[node] = mpropdef
else if node.labels.has("MVirtualTypeDef") then
mpropdef = new MVirtualTypeDef(mclassdef, mproperty.as(MVirtualTypeProp), location)
mentities[node] = mpropdef