private void ensureScopeExists(@NotNull NamedScopeDescriptor descriptor) {
    List<NamedScopesHolder> holders = getScopeHolders();
    for (NamedScopesHolder holder : holders) {
      if (holder.getScope(descriptor.getName()) != null) return;
    }
    NamedScopesHolder projectScopeHolder = DependencyValidationManager.getInstance(getScopeHolderProject());
    NamedScope newScope = projectScopeHolder.createScope(descriptor.getName(), descriptor.getFileSet());
    projectScopeHolder.addScope(newScope);
  }
private void ensureScopeExists(@NotNull NamedScopeDescriptor descriptor)