Add test case for PHP function modifier parsing.
Add test case for PHP function modifier parsing.

pelatx/brackets-outline-list,Hirse/brackets-outline-list,Hirse/brackets-outline-list,Hirse/brackets-outline-list,pelatx/brackets-outline-list,pelatx/brackets-outline-list,pelatx/brackets-outline-list,Hirse/brackets-outline-list