private static void copyCaseValues(@NotNull PsiSwitchLabelStatement from,
                                       @NotNull PsiSwitchLabelStatement to,
                                       boolean mergeWithDefault) {
      @Nullable PsiCaseLabelElementList fromCaseLabelElementList = getCaseLabelElementList(from);
      @Nullable PsiCaseLabelElementList toCaseLabelElementList = getCaseLabelElementList(to);
      DuplicateBranchesInSwitchInspection.copyCaseValues(fromCaseLabelElementList, toCaseLabelElementList, mergeWithDefault);
    }
private static void copyCaseValues(@NotNull PsiSwitchLabelStatement from,
                                       @NotNull PsiSwitchLabelStatement to,
                                       boolean mergeWithDefault)