Add Warning#warning_code
Add Warning#warning_code

lee-leon/brakeman,htdc/brakeman,jakeatwork/brakeman,spcoder/brakeman,dfens/brakeman,codeclimate/brakeman-deprecated,masarakki/brakeman,bf4/brakeman,masarakki/brakeman,spcoder/brakeman,kbrock/brakeman,lee-leon/brakeman,jakeatwork/brakeman,lee-leon/brakeman,jeffyip/brakeman,jlecour/brakeman,liqites/brakeman,htdc/brakeman,htdc/brakeman,dfens/brakeman,liqites/brakeman,spcoder/brakeman,bf4/brakeman,cheerfulstoic/brakeman,jeffyip/brakeman,cheerfulstoic/brakeman,kbrock/brakeman,cheerfulstoic/brakeman,github/brakeman,kbrock/brakeman,jakeatwork/brakeman,liqites/brakeman,jlecour/brakeman,jlecour/brakeman,dfens/brakeman,bf4/brakeman,github/brakeman,masarakki/brakeman,codeclimate/brakeman-deprecated