1'use strict'; 2 3const { mustNotCall, mustCall } = require('../common'); 4 5Object.defineProperties(Object.prototype, { 6 then: { 7 set: mustNotCall('set %Object.prototype%.then'), 8 get: mustNotCall('get %Object.prototype%.then'), 9 }, 10}); 11 12import('data:text/javascript,').then(mustCall()); 13