private static @Nullable PsiElement getPreviousNonWsComment(@Nullable PsiElement element, int minOffset) {
    if (element == null) {
      return null;
    }
    for (PsiElement e = element; e != null && e.getTextRange().getStartOffset() >= minOffset; e = e.getPrevSibling()) {
      if (e instanceof PsiWhiteSpace || e instanceof PsiComment) {
        continue;
      }
      return e;
    }
    return null;
  }
private static @Nullable PsiElement getPreviousNonWsComment(@Nullable PsiElement element, int minOffset)