docs: @Nonnull
    public static AbstractJSExpression minus (@Nonnull final IJSExpression aExpr)
    {
      // Some optimizations
      if (aExpr instanceof AbstractJSAtomNumeric)
        return ((AbstractJSAtomNumeric) aExpr).numericMinus ();
  
      return new JSOpUnaryWithParanthesis ("-", aExpr);
    }