Refactor the AddColumnWithDefault cop to use node matchers
Refactor the AddColumnWithDefault cop to use node matchers

jirutka/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,htve/GitlabForChinese,jirutka/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab,iiet/iiet-git,iiet/iiet-git,darkrasid/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,darkrasid/gitlabhq,t-zuehlsdorff/gitlabhq,htve/GitlabForChinese,darkrasid/gitlabhq,axilleas/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,dplarson/gitlabhq,stoplightio/gitlabhq,t-zuehlsdorff/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,htve/GitlabForChinese,stoplightio/gitlabhq,dreampet/gitlab,iiet/iiet-git,mmkassem/gitlabhq,axilleas/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,jirutka/gitlabhq,dplarson/gitlabhq,darkrasid/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,mmkassem/gitlabhq