Code assist does not add necessary qualifier for use of inner type in type annotation

Similar to #365
```groovy
@a.B(In|)
class C {
  static class Inner {}
}
```
```java
package a;
import java.lang.annotation.*;
@Target(ElementType.TYPE)
public @interface B {
  Class<?> value();
}
```

Completion at '|' completes as `Inner` when `C.Inner` is required due to the scope of the type annotation.