private static int getMultiplier(PsiPolyadicExpression polyadicExpression) {
    int multiplier;
    IElementType type = polyadicExpression.getOperationTokenType();
    if (type.equals(JavaTokenType.PLUS)) {
      multiplier = 1;
    }
    else if (type.equals(JavaTokenType.MINUS)) {
      multiplier = -1;
    }
    else {
      multiplier = 0;
    }
    return multiplier;
  }
private static int getMultiplier(PsiPolyadicExpression polyadicExpression)