@Contract("null -> false")
  public static boolean isPlusPlusOrMinusMinus(@Nullable PsiElement parent) {
    if (parent instanceof GrUnaryExpression) {
      IElementType tokenType = ((GrUnaryExpression)parent).getOperationTokenType();
      return tokenType == GroovyTokenTypes.mINC || tokenType == GroovyTokenTypes.mDEC;
    }
    return false;
  }
@Contract("null -> false")
  public static boolean isPlusPlusOrMinusMinus(@Nullable PsiElement parent)