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

[eric-milles]

Similar to #365

@a.B(In|)
class C {
  static class Inner {}
}

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.

[eric-milles]

Required changes to proposal have been made. The qualifier is added when the type is not the main type of a source file. When it is, the same issue exists for Java and has been submitted as: https://bugs.eclipse.org/bugs/show_bug.cgi?id=535948