[Completion][Switch] No completion inside switch inside lambda

No completion proposals offered at | below:

```
import java.util.concurrent.Callable;

public class X {

static void foo(Runnable r) {
System.out.println("Runnable");
}

static void foo(Callable task) {
System.out.println("Callable");
}

public static void main(String [] args) {
foo(() -> {
switch(args.length) {
case 0 -> throw new NullPo|
}
}
);
}
}

```