if (subs[i].hasChanged()) return true;
if (subs[i].hasStateChanged()) return true;
    private boolean willModifySource() {        NLSSubstitution[] subs = fNlsHolder.getSubstitutions();        for (int i = 0; i < subs.length; i++) {            if (subs[i].hasChanged()) return true;        }        //if (willAddImportDeclaration()) return true;        return false;    }