@Nullable
  public static PsiElement findOtherSide(PsiElement psiElement, final boolean start) {
    PsiElement target = null;
    PsiElement parent = psiElement.getParent();
    if (parent instanceof PsiErrorElement) {
      parent = parent.getParent();
    }

    if (parent instanceof XmlTag) {
      if (start) {
        target = XmlTagUtil.getStartTagNameElement((XmlTag)parent);
      }
      else {
        target = XmlTagUtil.getEndTagNameElement((XmlTag)parent);
        if (target == null) {
          final PsiErrorElement errorElement = PsiTreeUtil.getChildOfType(parent, PsiErrorElement.class);
          target = XmlWrongClosingTagNameInspection.findEndTagName(errorElement);
        }
      }
    }
    return target;
  }
@Nullable
  public static PsiElement findOtherSide(PsiElement psiElement, final boolean start)