"Component definition is missing display name" when using `as`

[tu4mo]

I'm getting false missing display name error when using as typecasting.

const Comp = React.forwardRef((props, ref) => <div />) as SomeComponent
Comp.displayName = 'MyCompName'

[ljharb]

What happens if you do const Comp: SomeComponent = React.forwardRef((props, ref) => <div />)? What type is SomeComponent?

If you remove the as SomeComponent, you don't see the warning?

[tu4mo]

I noticed this when I tried Radix UI Polymorphic. Unfortunately using as is the only way it currently works with TypeScript. Warning goes away when I remove the as part.