function createFrame(functionName, url, scriptId, line, column, isNative)
    {
        return /** @type {!ConsoleAgent.CallFrame} */ ({
            "functionName": functionName,
            "url": url || "",
            "scriptId": scriptId || "0",
            "lineNumber": line || 0,
            "columnNumber": column || 0,
            "isNative": isNative || false
        });
    }
@param {string} functionName
@param {string=} url
@param {string=} scriptId
@param {number=} line
@param {number=} column
@param {boolean=} isNative
@return {!ConsoleAgent.CallFrame}