The copy phase doesn't list proper dependencies, so it's (pretty much) only run when there is no WebCore.framework/Resources/inspector directory.
Created attachment 211578 [details] proposed fix
Comment on attachment 211578 [details] proposed fix Clearing flags on attachment: 211578 Committed r155719: <http://trac.webkit.org/changeset/155719>
All reviewed patches have been landed. Closing bug.