no-internal rule does not catch all internal API usages

[saskliutas]

There are some cases where no-internal rule does not produce an error:

// extending internal class does not result in lint error
class NewClass extends InternalClass {}

// taking internal class constructor as an argument does not result in lint error
function doSomething(construct: new () => InternalClass) {
  // impl
}

// passing internal class constructor as an argument does not result in lint error
doSomething(InternalClass);

These are examples that I have encountered. There might be more cases where referencing internal APIs or types does not result in an error.