2685_warn_undeclared: add test for warn.undeclared.
2685_warn_undeclared: add test for warn.undeclared.

da-woods/cython,cython/cython,scoder/cython,cython/cython,cython/cython,scoder/cython,scoder/cython,scoder/cython,da-woods/cython,da-woods/cython,cython/cython,da-woods/cython