@NotNull
    List<CompilerRef> getMembersFor(@NotNull SignatureData data) {
      try {
        List<CompilerRef> result = new ArrayList<>();
        myIndex.get(JavaCompilerIndices.BACK_MEMBER_SIGN).getData(data).forEach((id, refs) -> {
          result.addAll(refs);
          return true;
        });
        return result;
      }
      catch (StorageException e) {
        throw new RuntimeException(e);
      }
    }
@NotNull
    List<CompilerRef> getMembersFor(@NotNull SignatureData data)