False "unused dependencies" for export ... from ...

[kaime]

I'm using a lot lines like this one:

export { Foo as Bar} from 'some-package'

If a package is used only this way, depcheck will issue an "unused dependency" message. If I change it to this other equivalent code, then it won't detect as unused.

import { Foo as Bar } from 'some-package'
export { Bar }

[mnkhouri]

Thanks for the report @kaime! I've added some tests to reproduce this bug in #272