code: function addInfixOperator(sId, iLbp) {
  		// Note: this function is executed at load time only!
  		mFilterParserSymbols[sId] = {
  			lbp : iLbp,
  			led : function (oToken, oLeft) {
  				oToken.type = "Edm.Boolean"; // Note: currently we only support logical operators
  				oToken.precedence = iLbp;
  				oToken.left = oLeft;
  				oToken.right = this.expression(iLbp);
  				return oToken;
  			}
  		};
  	}
docs: Adds an infix operator to mFilterParserSymbols.
  
  @param {string} sId The token ID
  @param {number} iLbp The "left binding power"