@NotNull
  @Override
  public Collection<PsiReference> findReferences(@NotNull PsiElement element,
                                                 @NotNull SearchScope searchScope,
                                                 boolean searchInCommentsAndStrings) {
    return MethodReferencesSearch.search((PsiMethod)element, searchScope, true).findAll();
  }
@NotNull
  @Override
  public Collection<PsiReference> findReferences(@NotNull PsiElement element,
                                                 @NotNull SearchScope searchScope,
                                                 boolean searchInCommentsAndStrings)