@NotNull
  @Override
  public Collection<PsiClass> getPackageClasses(
      @NotNull FqName packageFqName, @NotNull GlobalSearchScope scope) {
    List<PsiClass> result = new ArrayList<PsiClass>();
    List<KotlinLightPackageClassInfo> packageClassesInfos =
        findPackageClassesInfos(packageFqName, scope);
    for (KotlinLightPackageClassInfo info : packageClassesInfos) {
      List<JetFile> files = PackagePartClassUtils.getPackageFilesWithCallables(info.getFiles());
      if (files.isEmpty()) continue;

      IdeaModuleInfo moduleInfo = info.getModuleInfo();
      if (moduleInfo instanceof ModuleSourceInfo) {
        KotlinLightClassForPackage lightClass =
            KotlinLightClassForPackage.Factory.create(
                psiManager, packageFqName, moduleInfo.contentScope(), files);
        if (lightClass == null) continue;

        result.add(lightClass);

        if (files.size() > 1) {
          for (JetFile file : files) {
            result.add(new FakeLightClassForFileOfPackage(psiManager, lightClass, file));
          }
        }
      } else {
        PsiClass clsClass = getLightClassForDecompiledPackage(packageFqName, files);
        if (clsClass != null) {
          result.add(clsClass);
        }
      }
    }
    return result;
  }
 @Nullable
 private static PsiClass getLightClassForDecompiledPackage(
     @NotNull FqName packageFqName, @NotNull List<JetFile> filesWithCallables) {
   JetFile firstFile = filesWithCallables.iterator().next();
   if (firstFile.isCompiled()) {
     if (filesWithCallables.size() > 1) {
       LOG.error("Several files with callables for package: " + packageFqName);
     }
     return createLightClassForDecompiledKotlinFile(firstFile);
   }
   return null;
 }