private static void suggestNonImportedClasses(CompletionParameters parameters, final CompletionResultSet result, JavaCompletionSession session) {
    GrMainCompletionProvider.addAllClasses(parameters, element -> {
      JavaPsiClassReferenceElement classElement =
        element.as(JavaPsiClassReferenceElement.CLASS_CONDITION_KEY);
      if (classElement != null) {
        classElement.setAutoCompletionPolicy(AutoCompletionPolicy.NEVER_AUTOCOMPLETE);
      }
      result.addElement(element);
    }, session, result.getPrefixMatcher());
  }
private static void suggestNonImportedClasses(CompletionParameters parameters, final CompletionResultSet result, JavaCompletionSession session)