Null destructuring causes unhandled rejection

[igorklopov]

The script:

npm init -y
npm i @zeit/ncc@0.17.0
echo $"// Object.define\nconst a = null;\nconst { b } = a;" > index.js
./node_modules/.bin/ncc build index.js

Object.define must be on first line. Disregarding if commented or not.