nitc :: MProperty :: intro_mclassdef
While a property is not bound to a specific module, or class, the introducing mclassdef is used for naming and visibility
# The classdef that introduce the property
# While a property is not bound to a specific module, or class,
# the introducing mclassdef is used for naming and visibility
var intro_mclassdef: MClassDef
src/model/model.nit:2149,2--2152,31