function convertLiteral(oLiteral, oOtherOperand) {
			var vModelValue,
				oTypeInfo = getType(oOtherOperand);

			if (oTypeInfo.$Type !== "Edm.String") {
				vModelValue = _Helper.parseLiteral(oLiteral.value, oTypeInfo.$Type, oTypeInfo.path);
				oLiteral.value = that.formatPropertyAsLiteral(vModelValue, oTypeInfo);
			}
		}
Converts the filter string literals to OData V2 syntax

@param {string} sFilter The filter string
@param {string} sMetaPath
  The meta path corresponding to the resource path
@returns {string} The filter string ready for a V2 query
@throws {Error} If the filter path is invalid

@private