private static Set<VirtualFile> getVisibleFiles(Project project, @NotNull VirtualFile file) {
    Set<VirtualFile> result = new HashSet<>();
    collectFiles(project, file, result);
    result.addAll(PluginIdModuleIndex.getFiles(project, ""));
    return result;
  }
private static Set<VirtualFile> getVisibleFiles(Project project, @NotNull VirtualFile file)