Does not catch `any` type

Similarly to #78, `expectType` doesn't seem to catch… `any`


All of this passes:

```ts
import {expectType} from 'tsd';
expectType<false>('' as any);
expectNotType<false>('' as any);
expectNotType<any>('' as any);
```

```json
{
	"tsd": "^0.13.1",
	"typescript": "^4.0.3"
}
```