static @Nullable PsiElement getAnchor(PsiExpression[] places) {
    if (places.length == 1) {
      return getAnchor(places[0]);
    }
    PsiElement anchor = CommonJavaRefactoringUtil.getAnchorElementForMultipleExpressions(places, null);
    return anchor instanceof PsiField && !(anchor instanceof PsiEnumConstant) ? ((PsiField)anchor).getInitializer() : anchor;
  }
static @Nullable PsiElement getAnchor(PsiExpression[] places)