function FileLocation(fullPath, line, chFrom, chTo, functionName) {
        this.fullPath = fullPath;
        this.line = line;
        this.chFrom = chFrom;
        this.chTo = chTo;
        this.functionName = functionName;
    }
FileLocation class
@constructor
@param {string} fullPath
@param {number} line
@param {number} chFrom column start position
@param {number} chTo column end position
@param {string} functionName