private void fillFromRootsIfNotRelative(int relativeLevel, @Nullable InsertHandler<LookupElement> insertHandler) {
      if (relativeLevel == -1) {
        fillFromQName(QualifiedName.fromComponents(), insertHandler);
      }
    }
private void fillFromRootsIfNotRelative(int relativeLevel, @Nullable InsertHandler<LookupElement> insertHandler)