private static @NotNull PsiSwitchLabelStatement getThisCaseBlockStart(PsiSwitchLabelStatement element) {
    PsiElement tmp;
    while ((tmp = PsiTreeUtil.skipWhitespacesBackward(element)) instanceof PsiSwitchLabelStatement) {
      element = (PsiSwitchLabelStatement)tmp;
    }
    return element;
  }
private static @NotNull PsiSwitchLabelStatement getThisCaseBlockStart(PsiSwitchLabelStatement element)