void addAcceptableReferenceProviders(@NotNull PsiElement position,
                                       @NotNull List<? super ProviderInfo<ProcessingContext>> list,
                                       @NotNull PsiReferenceService.Hints hints);
void addAcceptableReferenceProviders(@NotNull PsiElement position,
                                       @NotNull List<? super ProviderInfo<ProcessingContext>> list,
                                       @NotNull PsiReferenceService.Hints hints)