Don't warn for uses of old property syntax in utility code.
Don't warn for uses of old property syntax in utility code.

ChristopherHogan/cython,da-woods/cython,fabianrost84/cython,fabianrost84/cython,ChristopherHogan/cython,da-woods/cython,da-woods/cython,fabianrost84/cython,scoder/cython,scoder/cython,c-blake/cython,c-blake/cython,c-blake/cython,cython/cython,scoder/cython,scoder/cython,cython/cython,ChristopherHogan/cython,cython/cython,da-woods/cython,fabianrost84/cython,c-blake/cython,c-blake/cython,fabianrost84/cython,cython/cython