@Override
    public void visitRegExpClosure(RegExpClosure closure) {
      super.visitRegExpClosure(closure);
      ASTNode token = closure.getQuantifier().getToken();
      if (token == null || token.getElementType() != RegExpTT.STAR) {
        return;
      }
      PsiElement sibling = closure.getPrevSibling();
      RegExpAtom atom = closure.getAtom();
        if (sibling instanceof RegExpElement && atom.getClass() == sibling.getClass() && sibling.textMatches(atom) && !containsGroup(atom)) {
        final String text = atom.getUnescapedText() + '+';
        myHolder.registerProblem(closure.getParent(),
                                 TextRange.from(sibling.getStartOffsetInParent(), sibling.getTextLength() + closure.getTextLength()),
                                 RegExpBundle.message("inspection.warning.can.be.simplified", text),
                                 new RegExpSimplifiableFix(text));
      }
    }
@Override
    public void visitRegExpClosure(RegExpClosure closure)