function resolveDefaultExport (container, input, output, node, currentpath, generator) {
    generator.onESMNodeFound(currentpath, node, undefined);
    output.exports.push({
        local: '',
        exported: 'default'
    });
}
@param {PluginContainer} container 
@param {string} input 
@param {Object} output 
@param {ESTree} node 
@param {CodeGenerator} generator