@Override
    void addReferenceCompletions(PsiReference reference, PsiElement position, Set<? super LookupElement> set, final PsiFile file,
                                 final CompletionData completionData) {
      completeReference(reference, position, set, TailTypes.noneType(), TrueFilter.INSTANCE, this);
    }
@Override
    void addReferenceCompletions(PsiReference reference, PsiElement position, Set<? super LookupElement> set, final PsiFile file,
                                 final CompletionData completionData)